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Yurchenko M, Hubálková H, Charvát J. Selected muscle tone and asymmetry of the occlusal plane in case of intracapsular temporomandibular joint disorder. Cranio 2024; 42:267-278. [PMID: 34355675 DOI: 10.1080/08869634.2021.1964052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objective: To discover the extent of the connection between occlusal plane asymmetry and the rest tone of the four muscle groups of the orofacial region with temporomandibular joint pathology.Methods: Eighty-seven subjects were divided into two groups. The following methods were applied: clinical examination, roentgenological examination, and electromyography. Data were evaluated and statistically analyzed.Results: The variability of occlusal plane inclination in relation to the porion plane was 0-4.6º.The tonus of masseter muscle was higher in the experimental group: 1.45 mV more than in the control group: 1.23 mV (p < 0.05).Conclusion: Asymmetry of the occlusal plane inclination was found for nearly all subjects in both groups. It can be compensated for by adaptation mechanisms and does not cause temporomandibular joint disorders. Undertaken research shows the existence of a proven correlation between TMJ disorders and the resting tonus of the masseter muscle.
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Affiliation(s)
- Maksim Yurchenko
- Charles University in Prague, 1st Faculty of Medicine, Department Of Stomatology, Prague 2, Czech Republic
| | - Hana Hubálková
- Charles University in Prague, 1st Faculty of Medicine, Department Of Stomatology, Prague 2, Czech Republic
| | - Jindřich Charvát
- Charles University in Prague, 1st Faculty of Medicine, Department Of Stomatology, Prague 2, Czech Republic
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2
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Fadillioglu C, Kanus L, Möhler F, Ringhof S, Schmitter M, Hellmann D, Stein T. Persisting effects of jaw clenching on dynamic steady-state balance. PLoS One 2024; 19:e0299050. [PMID: 38386649 PMCID: PMC10883567 DOI: 10.1371/journal.pone.0299050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/02/2024] [Indexed: 02/24/2024] Open
Abstract
The effects of jaw clenching on balance has been shown under static steady-state conditions but the effects on dynamic steady-state balance have not yet been investigated. On this basis, the research questions were: 1) if jaw clenching improves dynamic steady-state balance; 2) if the effects persist when the jaw clenching task loses its novelty and the increased attention associated with it; 3) if the improved dynamic steady-state balance performance is associated with decreased muscle activity. A total of 48 physically active healthy adults were assigned to three groups differing in intervention (Jaw clenching and balance training (JBT), only balance training (OBT) or the no-training control group (CON)) and attending two measurement points separated by two weeks. A stabilometer was used to assess the dynamic steady-state balance performance in a jaw clenching and non-clenching condition. Dynamic steady-state balance performance was measured by the time at equilibrium (TAE). The activities of tibialis anterior (TA), gastrocnemius medialis (GM), rectus femoris (RF), biceps femoris (BF) and masseter (MA) muscles were recorded by a wireless EMG system. Integrated EMG (iEMG) was calculated to quantify the muscle activities. All groups had better dynamic steady-state balance performance in the jaw clenching condition than non-clenching at T1, and the positive effects persisted at T2 even though the jaw clenching task lost its novelty and attention associated with it after balance training with simultaneous jaw clenching. Independent of the intervention, all groups had better dynamic steady-state balance performances at T2. Moreover, reductions in muscle activities were observed at T2 parallel to the dynamic steady-state balance performance improvement. Previous studies showed that jaw clenching alters balance during upright standing, predictable perturbations when standing on the ground and unpredictable perturbations when standing on an oscillating platform. This study complemented the previous findings by showing positive effects of jaw clenching on dynamic steady-state balance performance.
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Affiliation(s)
- Cagla Fadillioglu
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Lisa Kanus
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Felix Möhler
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Steffen Ringhof
- Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany
- Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marc Schmitter
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Daniel Hellmann
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
| | - Thorsten Stein
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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Hong SW, Baek JH, Kim K, Kang JH. Complex interplay of oral health, muscle and bone metabolism, and frailty in older individuals. Clin Oral Investig 2024; 28:116. [PMID: 38270679 DOI: 10.1007/s00784-024-05521-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/17/2024] [Indexed: 01/26/2024]
Abstract
OBJECTIVES To investigate molecular and clinical background of associations among oral health, muscle and bone metabolism, and frailty incidence in patients with fall and fracture history. MATERIALS AND METHODS In total, 88 elderly participants (mean age 71.9 ± 5.8 years) with the distal radius fractures were included. Participants were divided into three groups based on an Oral Health Assessment Tool score. Fried criteria and Mini-nutritional assessments were adopted to diagnose frailty and malnutrition, respectively. Blood samples were collected and analyzed for serum levels of bone turnover markers, proteins, insulin-like growth factor-1, 25-hydroxyvitamin D, and inflammatory cytokines. The mRNA levels of markers of inflammation, muscle synthesis and wasting, and muscle homeostasis regulator in the pronator quadratus muscle were analyzed. RESULTS Patients with deteriorated oral health demonstrated a higher prevalence of frailty and malnutrition. Significantly lower serum levels of total protein and higher concentrations of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were detected in patients with poor oral health. Significant interaction effects between oral health and frailty level in gait speed, serum TNF-α, IL-1β, and total protein levels were exhibited. Significantly different mRNA expression levels in the pronator quadratus muscle of TNF-α, IL-1β, NF kB, MYOG, and FOXO1 following the oral health were detected. CONCLUSION This study highlights relationship between oral health, nutritional uptake, systemic inflammation, and their combined impact on muscle and bone metabolism, ultimately affecting frailty development in the aging populations. CLINICAL RELEVANCE A comprehensive understanding of mutual interactions among oral health, nutrition, and inflammation is essential for managing frailty.
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Affiliation(s)
- Seok Woo Hong
- Department of Orthopedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, 29, Saemunan-Ro, Jongno-Gu, Seoul, 03181, Republic of Korea
| | - Jeong-Hwa Baek
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Republic of Korea
| | - Kwangyeon Kim
- Department of Orthopedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, 29, Saemunan-Ro, Jongno-Gu, Seoul, 03181, Republic of Korea
| | - Jeong-Hyun Kang
- Clinic of Oral Medicine and Orofacial Pain, Institute of Oral Health Science, Ajou University School of Medicine, 164, Worldcup-Ro, Yeongtong-Gu, Suwon, Gyeonggi-Do, 16499, Republic of Korea.
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Stamos A, Engels-Deutsch M, Cantamessa S, Dartevelle JL, Crouzette T, Haughey J, Grosso FD, Avgerinos S, Fritsch T, Nanussi A, Trombowsky F, Striegel M, Salyzyn M, Whitehead J, Stasiuk H, Canal E, Amy E, Roettger M, Rahiotis C. A suggested universal protocol for dental examination in sports. Dent Traumatol 2023; 39:521-530. [PMID: 37367210 DOI: 10.1111/edt.12863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/01/2023] [Accepted: 06/04/2023] [Indexed: 06/28/2023]
Abstract
The athletes of any sport and level submit their bodies to constant exercise. Any given pathology can increase the risk of injury, illness, or even reduced performance. The medical examination is valuable in diagnosing existing health problems and preventing medical issues that might compromise the athlete's overall health when exercising. The stomatognathic system is not an exemption, as oral pathologies, including dental caries and periodontal diseases, are found in high incidence in sports. The need for accurate and detailed dental examination in sports leaded dentists from the European Association for Sports Dentistry and the Academy for Sports Dentistry to elaborate a universal dental examination in sports protocol that can record the overall oral health of the athlete, including the teeth, periodontium, and musculoskeletal screening, for all athletes. The outcome of this stomatognathic examination allows sports physicians and professionals other than dentists to have a complete image of the individual oral health condition of any given athlete, and it allows the dentists to efficiently screen and prevent pathologies, as well as to advise on the eligibility to practice sports from the oral health perspective.
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Affiliation(s)
- Athanasios Stamos
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | | | - Sophie Cantamessa
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | | | - Thierry Crouzette
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | - John Haughey
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | - Flavia Del Grosso
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | - Stavros Avgerinos
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | - Tilman Fritsch
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | | | | | - Markus Striegel
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | - Mike Salyzyn
- Academy for Sports Dentistry (ASD), Springfield, Illinois, USA
| | - Jim Whitehead
- Academy for Sports Dentistry (ASD), Springfield, Illinois, USA
| | - Hans Stasiuk
- Academy for Sports Dentistry (ASD), Springfield, Illinois, USA
| | - Emilio Canal
- Academy for Sports Dentistry (ASD), Springfield, Illinois, USA
| | - Enrique Amy
- Academy for Sports Dentistry (ASD), Springfield, Illinois, USA
| | - Mark Roettger
- Academy for Sports Dentistry (ASD), Springfield, Illinois, USA
| | - Christos Rahiotis
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
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Fadillioglu C, Kanus L, Möhler F, Ringhof S, Hellmann D, Stein T. Effects of jaw clenching on dynamic reactive balance task performance after 1-week of jaw clenching training. Front Neurol 2023; 14:1140712. [PMID: 37426440 PMCID: PMC10327569 DOI: 10.3389/fneur.2023.1140712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/30/2023] [Indexed: 07/11/2023] Open
Abstract
Introduction Good balance is essential for human daily life as it may help to improve the quality of life and reduce the risk of falls and associated injuries. The influence of jaw clenching on balance control has been shown under static and dynamic conditions. Nevertheless, it has not yet been investigated whether the effects are mainly associated with the dual-task situation or are caused by jaw clenching itself. Therefore, this study investigated the effects of jaw clenching on dynamic reactive balance task performance prior to and after 1 week of jaw clenching training. It was hypothesized that jaw clenching has stabilizing effects resulting in a better dynamic reactive balance performance, and these effects are not related to dual-task benefits. Methods A total of 48 physically active and healthy adults (20 women and 28 men) were distributed into three groups, one habitual control group (HAB) and two jaw clenching groups (JAW and INT) that had to clench their jaws during the balance tasks at T1 and T2. One of those two groups, the INT group, additionally practiced the jaw clenching task for 1 week, making it familiar and implicit at T2. The HAB group did not receive any instruction regarding jaw clenching condition. Dynamic reactive balance was assessed using an oscillating platform perturbed in one of four directions in a randomized order. Kinematic and electromyographic (EMG) data were collected using a 3D motion capture system and a wireless EMG system, respectively. Dynamic reactive balance was operationalized by the damping ratio. Furthermore, the range of motion of the center of mass (CoM) in perturbation direction (RoMCoM_AP or RoMCoM_ML), as well as the velocity of CoM (VCoM) in 3D, were analyzed. The mean activity of the muscles relevant to the perturbation direction was calculated to investigate reflex activities. Results The results revealed that jaw clenching had no significant effects on dynamic reactive balance performance or CoM kinematics in any of these three groups, and the automation of jaw clenching in the INT group did not result in a significant change either. However, high learning effects, as revealed by the higher damping ratio values and lower VCoM at T2, were detected for the dynamic reactive balance task even without any deliberate balance training in the intervention phase. In the case of backward perturbation of the platform, the soleus activity in a short latency response phase increased for the JAW group, whereas it decreased for HAB and INT after the intervention. In the case of forward acceleration of the platform, JAW and INT showed a higher tibialis anterior muscle activity level in the medium latency response phase compared to HAB at T1. Discussion Based on these findings, it can be suggested that jaw clenching may lead to some changes in reflex activities. However, the effects are limited to anterior-posterior perturbations of the platform. Nevertheless, high learning effects may have overall overweighed the effects related to jaw clenching. Further studies with balance tasks leading to less learning effects are needed to understand the altered adaptations to a dynamic reactive balance task related to simultaneous jaw clenching. Analysis of muscle coordination (e.g., muscle synergies), instead of individual muscles, as well as other experimental designs in which the information from other sources are reduced (e.g., closed eyes), may also help to reveal jaw clenching effects.
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Affiliation(s)
- Cagla Fadillioglu
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Lisa Kanus
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Felix Möhler
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Steffen Ringhof
- Department of Sport and Sport Science, University of Freiburg, Freiburg im Breisgau, Germany
- Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
| | - Daniel Hellmann
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
| | - Thorsten Stein
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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Mainjot AK, Oudkerk J, Bekaert S, Dardenne N, Streel S, Koenig V, Grenade C, Davarpanah A, Donneau AF, Forthomme B, Bruyère O. Bruxism as a new Risk Factor of Musculo-Skeletal Disorders? J Dent 2023:104555. [PMID: 37263410 DOI: 10.1016/j.jdent.2023.104555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/29/2023] [Accepted: 05/17/2023] [Indexed: 06/03/2023] Open
Abstract
OBJECTIVES Musculoskeletal disorders (MSDs), particularly neck and low back pain, constitute a major public health issue worldwide with a heavy morbidity and economic impact. However, the relationships between the stomatognathic system and MSDs are subjected to debate, data sorely lacking. The study objective was to investigate the association between bruxism (BR) and MSDs. Secondary objective includes the study of the association between tooth wear (TW) and MSDs. METHODS This is a cross-sectional study on 425 participants frequenting a university dental clinic. The presence of MSDs was evaluated with the standardized Nordic questionnaire. The sleep and awake BR assessments were based on clinical examination and self-report. TW was measured with the BEWE index. Socio-demographic factors, medical history, life habits and stress were analyzed as potential confounding variables. RESULTS 91% of patients reported at least one MSD during the preceding 12 months and 78.8% were diagnosed as bruxers. In multivariate analyses, BR was associated with a 5-fold increased risk of prevalent MSD (OR=5.88 (2.7-12.5), p<0.0001). Regarding TW, for a one-point increase in anterior BEWE score, the risk to present an MSD was increased by 53% (OR=1.53 (1.12-2.08), p=0.0076). Moreover, BR was independently associated with neck, shoulder, upper back, low back, hip & thigh and knee MSDs. Anterior TW was independently associated with neck, low back and hip & thigh MSDs, and global TW with knee MSDs. CONCLUSIONS BR and TW were shown to be associated with MSDs. The cause-and-effect relationships between those factors needs to be analyzed to optimize prevention and therapeutic care. CLINICAL SIGNIFICANCE Results suggest that the body is a whole, a balanced muscular system, where every part constitutes a link of the chain. MSDs management and prevention may require a multidisciplinary team approach and future perspectives include defining the dentist's role in this context, particularly with respect to BR diagnostic and treatment.
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Affiliation(s)
- Amélie K Mainjot
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium; Department of Fixed Prosthodontics, Institute of Dentistry, University of Liège Hospital (CHU), Liège, Belgium.
| | - Julie Oudkerk
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium; Department of Fixed Prosthodontics, Institute of Dentistry, University of Liège Hospital (CHU), Liège, Belgium
| | - Sandrine Bekaert
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium; Department of Fixed Prosthodontics, Institute of Dentistry, University of Liège Hospital (CHU), Liège, Belgium
| | - Nadia Dardenne
- Biostatistics and Research Method Center, University of Liege, Liege Belgium
| | - Sylvie Streel
- Department of Public Health, University of Liège, Belgium
| | - Vinciane Koenig
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium; Department of Fixed Prosthodontics, Institute of Dentistry, University of Liège Hospital (CHU), Liège, Belgium
| | - Charlotte Grenade
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium; Department of Fixed Prosthodontics, Institute of Dentistry, University of Liège Hospital (CHU), Liège, Belgium
| | - Anoushka Davarpanah
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium
| | | | - Bénédicte Forthomme
- Department of Physical Medicine and Sports Traumatology, Sports², FIFA Medical Centre of Excellence, University and University Hospital of Liège, Liège, Belgium; Department of Rehabilitation and Sports Sciences, University of Liège, Liège, Belgium
| | - Olivier Bruyère
- WHO Collaborating Center for Public Health aspects of musculo-skeletal health and ageing, Division of Public Health, Epidemiology and Health Economics, University of Liège, Belgium
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El Ouali EM, Zouhal H, Bahije L, Ibrahimi A, Benamar B, Kartibou J, Saeidi A, Laher I, El Harane S, Granacher U, Mesfioui A. Effects of Malocclusion on Maximal Aerobic Capacity and Athletic Performance in Young Sub-Elite Athletes. Sports (Basel) 2023; 11:sports11030071. [PMID: 36976957 PMCID: PMC10051721 DOI: 10.3390/sports11030071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/01/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Oral pathologies can cause athletic underperformance. The aim of this study was to determine the effect of malocclusion on maximal aerobic capacity in young athletes with the same anthropometric data, diet, training mode, and intensity from the same athletics training center. Sub-elite track and field athletes (middle-distance runners) with malocclusion (experimental group (EG); n = 37; 21 girls; age: 15.1 ± 1.5 years) and without malocclusion (control group (CG); n = 13; 5 girls; age: 14.7 ± 1.9 years) volunteered to participate in this study. Participants received an oral diagnosis to examine malocclusion, which was defined as an overlapping of teeth that resulted in impaired contact between the teeth of the mandible and the teeth of the upper jaw. Maximal aerobic capacity was assessed using the VAMEVAL test (calculated MAS and estimated VO2max). The test consisted of baseline values that included the following parameters: maximum aerobic speed (MAS), maximal oxygen uptake (VO2max), heart rate frequency, systolic (SAP) and diastolic arterial pressure (DAP), blood lactate concentration (LBP), and post-exercise blood lactate assessment (LAP) after the performance of the VAMEVAL test. There were no statistically significant differences between the two study groups related to either anthropometric data (age: EG = 15.1 ± 1.5 vs. CC = 14.7 ± 1.9 years (p = 0.46); BMI: EG = 19.25 ± 1.9 vs. CC = 19.42 ± 1.7 kg/m2 (p = 0.76)) or for the following physical fitness parameters and biomarkers: MAS: EG = 15.5 (14.5-16.5) vs. CG = 15.5 (15-17) km/h (p = 0.47); VO2max: EG = 54.2 (52.5-58.6) vs. CG = 54.2 (53.4-59.5) mL/kg/min (p = 0.62) (IQR (Q1-Q3)); heart rate before the physical test: EG = 77.1 ± 9.9 vs. CG = 74.3 ± 14.0 bpm (p = 0.43); SAP: EG = 106.6 ± 13.4 vs. CG = 106.2 ± 14.8 mmHg (p = 0.91); DAP: EG = 66.7 ± 9.1 vs. CG = 63.9 ± 10.2 mmHg (p = 0.36); LBP: EG = 1.5 ± 0.4 vs. CG = 1.3 ± 0.4 mmol/L (p = 0.12); and LAP: EG = 4.5 ± 2.36 vs. CG = 4.06 ± 3.04 mmol/L (p = 0.60). Our study suggests that dental malocclusion does not impede maximal aerobic capacity and the athletic performance of young track and field athletes.
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Affiliation(s)
- El Mokhtar El Ouali
- Laboratory of Biology and Health, Department of Biology, Ibn Tofail University of Kenitra, Kénitra 14000, Morocco
| | - Hassane Zouhal
- Movement, Sport, Health and Sciences Laboratory (M2S), UFR-STAPS, University of Rennes 2-ENS Cachan, Av. Charles Tillon, 35044 Rennes, France
- Institut International des Sciences du Sport (2IS), 35850 Irodouer, France
| | - Loubna Bahije
- Department of Dentofacial Orthopedics, Faculty of Dental Medicine, Mohammed 5 University of Rabat, Rabat 10000, Morocco
| | - Azeddine Ibrahimi
- Medical Biotechnology Laboratory, Faculty of Medicine and Pharmacy, Mohamed 5 Rabat University, Rabat 10000, Morocco
| | - Bahae Benamar
- BENAMAR Medical Analysis Laboratory, Rabat 10000, Morocco
| | - Jihan Kartibou
- Ministry of National Education and Teaching and Sports, Rabat 10000, Morocco
| | - Ayoub Saeidi
- Department of Physical Education and Sport Sciences, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Ismail Laher
- Department of Anesthesiology, Pharmacology, and Therapeutics, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Sanae El Harane
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
| | - Urs Granacher
- Department of Sport and Sport Science, Exercise and Human Movement Science, University of Freiburg, 79102 Freiburg, Germany
| | - Abdelhalem Mesfioui
- Laboratory of Biology and Health, Department of Biology, Ibn Tofail University of Kenitra, Kénitra 14000, Morocco
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Hong SW, Lee J, Kang JH. Associations between oral health status and risk of fractures in elder adults. Sci Rep 2023; 13:1361. [PMID: 36694031 PMCID: PMC9873794 DOI: 10.1038/s41598-023-28650-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 01/23/2023] [Indexed: 01/26/2023] Open
Abstract
Oral health condition, bone mineral density, skeletal muscle mass, fall, fracture, and frailty seem to be strongly interconnected. This study aimed to investigate associations between probability of osteoporotic fractures and oral health in the elderly. In total, 2322 Korean subjects from the 2008-2009 Korea National Health and Nutritional Examination Survey aged over 65 years were included. The 10-year probabilities of major and hip fractures were calculated using the Fracture Risk Assessment (FRAX) tool. Data on anthropometry, skeletal bone mineral density, sociodemographic characteristics, physical activity, individual history of fractures and falls, parental history of osteoporosis, number of teeth, metabolic syndrome, the Decayed, Missing, and Filled permanent Teeth index, and Community Periodontal Index (CPI), were collected. Participants were classified into three groups based on FRAX score for major osteoporotic fractures. A multivariate linear regression analysis was conducted to analyze associations between FRAX scores and oral health-related factors, adjusting for confounding factors. BMI, presence of metabolic syndrome, number of teeth, dental patterns, and CPI score showed significant differences among three groups in males and females. Results from multivariate linear regression analysis demonstrated significant relationships between total tooth number and probabilities of fracture in male and female elderly. The interdisciplinary approach for handling osteoporosis and sarcopenia including dentists, physicians is necessary to facilitate a better quality of life in the elderly.
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Affiliation(s)
- Seok Woo Hong
- Department of Orthopedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, 29, Saemunan-Ro, Jongno-Gu, Seoul, 03181, Republic of Korea
| | - JunYeop Lee
- Department of Orthopedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, 29, Saemunan-Ro, Jongno-Gu, Seoul, 03181, Republic of Korea
| | - Jeong-Hyun Kang
- Clinic of Oral Medicine and Orofacial Pain, Institute of Oral Health Science, Ajou University School of Medicine, 164, Worldcup-Ro, Yeongtong-Gu, Suwon, Gyeonggi-Do, 16499, Republic of Korea.
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9
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Nowak M, Golec J, Wieczorek A, Golec P. Is There a Correlation between Dental Occlusion, Postural Stability and Selected Gait Parameters in Adults? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1652. [PMID: 36674407 PMCID: PMC9862361 DOI: 10.3390/ijerph20021652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Background: There is still an ongoing debate about the role of the craniomandibular system, including occlusal conditions, on postural stability. This study aims to assess the role of antero-posterior malocclusion on postural control and plantar pressure distribution during standing and walking. Methods: 90 healthy volunteers (aged 19 to 35) were qualified for the study. The subjects were assigned to three groups, depending on the occlusion type. Each group (Angle Class I, II and III) consisted of 30 people. The research procedure included a clinical occlusal assessment performed by a dentist. Postural control measurements were carried out using a force platform by measuring plantar pressure distribution during standing (six trials with and without visual control) and walking test conditions. Results: The tendency to shift the CoP forward is demonstrated by Angle Class II subjects and backwards by Class I and III subjects (p < 0.001). Individuals with a malocclusion demonstrated significantly higher selected stabilographic parameters while standing on both feet (with eyes open and closed) and during the single-leg test with eyes open (p < 0.05). The analysis of the dynamic test results showed no significant correlations between Angle Classes and the selected gait parameters. Conclusions: Analyses conducted among individuals with malocclusions showed the impact of occlusion on static postural stability. In order to diagnose and effectively treat malocclusion, a multidisciplinary approach with the participation of dentists and physiotherapy specialists is necessary, with the use of stabilometric and kinematic posture assessments.
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Affiliation(s)
- Monika Nowak
- Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski Krakow University, 30-705 Kraków, Poland
| | - Joanna Golec
- Institute of Clinical Rehabilitation, University School of Physical Education in Krakow, 31-571 Kraków, Poland
| | - Aneta Wieczorek
- Department of Prosthodontics and Orthodontics, Faculty of Medicine, Jagiellonian University Medical College, 31-007 Kraków, Poland
| | - Piotr Golec
- Individual Medical Practice, 30-390 Kraków, Poland
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10
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Sports and Energy Drink Consumption, Oral Health Problems and Performance Impact among Elite Athletes. Nutrients 2022; 14:nu14235089. [PMID: 36501119 PMCID: PMC9738880 DOI: 10.3390/nu14235089] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/19/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022] Open
Abstract
Frequent consumption of sports and energy drinks among athletes is of concern due to its detrimental impact on oral health. The present study aimed to assess sports and energy drink consumption, oral health status and impacts on daily activities and sports performance among elite athletes from Pakistan. Data regarding socio-demographic characteristics, sports and energy drink consumption, oral health and hygiene practices, self-reported oral health and psychosocial and performance impact was assessed using a self-administered, structured questionnaire followed by clinical oral examination by a single, experienced dentist. A total of 104 athletes, a majority of whom were male (80.8%), participated in the study. Around two third of the participants reported consumption of sports and energy drinks, energy gels or bars at least once a week, the commonest being Sting. Despite good oral hygiene practices, the athletes generally had poor oral health with high prevalence of dental caries (63.5%), gingivitis (46.1%), irreversible periodontitis (26.9%) and erosive tooth wear (21.2%). More than a quarter (28.8%) of the athletes rated their oral health as fair-very poor. Four in five athletes (80%) also experienced at least one oral problem with negative impacts on daily activities (64.4%) and participation training and sports performance (36.5%). Regression analyses revealed a significant association between periodontal disease and impact on both daily activities and sports performance. To our knowledge, this is the first study reporting that high-prevalence sports and energy drink consumption and oral problems among elite athletes from Pakistan has a negative impact on daily activities and sports performance. These findings may have important implications for oral health education programs, and the need to create awareness among the athletes regarding the use of sports and energy drinks, as well as regular oral health screening of athletes to minimize the impact on performance.
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11
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Diéguez-Pérez M, Fernández-Molina A, Burgueño-Torres L. Influence of occlusion and mandibular position on foot support and head posture in adult patients. Cranio 2022:1-8. [PMID: 36334277 DOI: 10.1080/08869634.2022.2140245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To study postural changes, taking into account different mandibular positions and the cephalic and plantar body segments. METHODS A cross-sectional, descriptive, clinical, and observational study was carried out on 76 patients, (mean age 28.79 years), in whom body posture and plantar support were evaluated in the maximum mandibular intercuspal position and the mandibular rest position without dental contact. RESULTS When the mandibular position was altered, 71.01% of the patients showed changes in the bipupillary line (p = 0.008), while those who did not show such changes did, however, show changes in plantar support. More than 85% of the sample experienced alterations in the plantar plane when the mandibular position was changed, with statistically significant results (p < 0.001). CONCLUSION There is a positive relationship between the different segments in body posture. In the sample, changes in plantar support with respect to the different mandibular positions were noticeable.
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Affiliation(s)
- Montserrat Diéguez-Pérez
- Department of Preclinical Dentistry, Faculty of Biomedical Sciences and Health Sciences, European University of Madrid, Madrid, Spain
- Department of Dental Clinical Specialties, Faculty of Dentistry, Complutense University of Madrid, Madrid, Spain
| | - Aurora Fernández-Molina
- Department of Preclinical Dentistry, Faculty of Biomedical Sciences and Health Sciences, European University of Madrid, Madrid, Spain
| | - Laura Burgueño-Torres
- Department of Preclinical Dentistry, Faculty of Biomedical Sciences and Health Sciences, European University of Madrid, Madrid, Spain
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12
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Kikutani T, Takahashi N, Tohara T, Furuya H, Tanaka K, Hobo K, Isoda T, Fukui T. Relationship between maintenance of occlusal support achieved by home-visit dental treatment and prognosis in home-care patients-a preliminary study. Geriatr Gerontol Int 2022; 22:976-981. [PMID: 36127817 PMCID: PMC9825876 DOI: 10.1111/ggi.14482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 08/07/2022] [Accepted: 08/23/2022] [Indexed: 01/11/2023]
Abstract
AIM To determine whether occlusal maintenance and reconstruction by dental intervention is associated with the prognosis of older home-care patients. METHODS The study participants were 289 older home-care patients (101 males, mean age 82.2 ± 7.7 years) who received visiting dental treatment from dental clinics in the region between 2012 and 2018. The participants were followed up for 1000 days after receiving the necessary dental treatment in a home-visit setting. The participants were divided into three groups: those with natural tooth occlusion, those whose molar occlusion was maintained or reconstructed by dentures, and those whose occlusion was not reconstructed. Factors associated with prognosis were determined using the Cox proportional hazard model, with occlusal status, comorbidities, the activity of daily living, and residence status as explanatory variables. RESULTS In the overall population, occlusal status (hazard ratio [HR] of those with occlusal disintegration versus those with natural tooth occlusion: 2.1, confidence interval [95% CI]: 1.18-3.82) and age (HR: 2.28, 95% CI: 1.44-3.61) were identified as significant factors. In the group of participants aged <85 years, only occlusal status (HR of those with occlusal disintegration versus those with natural tooth occlusion: 3.4, 95% CI: 1.34-8.68) was a significant factor. In the group of participants aged ≥85 years, occlusal status was not significantly associated with prognosis. CONCLUSIONS The maintenance and acquisition of occlusal support achieved by dental treatment contribute to improved prognosis in older patients younger than 85 years requiring home nursing care. Geriatr Gerontol Int 2022; 22: 976-981.
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Affiliation(s)
- Takeshi Kikutani
- The Nippon Dental University, Tama Oral Rehabilitation ClinicTokyoJapan,Division of Rehabilitation for Speech and Swallowing DisordersThe Nippon Dental UniversityTokyoJapan
| | - Noriaki Takahashi
- The Nippon Dental University, Tama Oral Rehabilitation ClinicTokyoJapan,Division of Rehabilitation for Speech and Swallowing DisordersThe Nippon Dental UniversityTokyoJapan
| | - Takashi Tohara
- The Nippon Dental University, Tama Oral Rehabilitation ClinicTokyoJapan,Division of Rehabilitation for Speech and Swallowing DisordersThe Nippon Dental UniversityTokyoJapan
| | - Hiroyasu Furuya
- The Nippon Dental University, Tama Oral Rehabilitation ClinicTokyoJapan,Division of Rehabilitation for Speech and Swallowing DisordersThe Nippon Dental UniversityTokyoJapan
| | - Kumi Tanaka
- The Nippon Dental University, Tama Oral Rehabilitation ClinicTokyoJapan,Division of Rehabilitation for Speech and Swallowing DisordersThe Nippon Dental UniversityTokyoJapan
| | - Kimiko Hobo
- The Nippon Dental University, Tama Oral Rehabilitation ClinicTokyoJapan,Division of Rehabilitation for Speech and Swallowing DisordersThe Nippon Dental UniversityTokyoJapan
| | - Tomoko Isoda
- The Nippon Dental University, Tama Oral Rehabilitation ClinicTokyoJapan,Division of Rehabilitation for Speech and Swallowing DisordersThe Nippon Dental UniversityTokyoJapan
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13
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Alghadir AH, Zafar H, Ahmed Iqbal Z, Anwer S, Iqbal A. Effect of static and dynamic jaw positions on postural stability among people with blindness. Brain Behav 2022; 12:e2645. [PMID: 35916391 PMCID: PMC9480900 DOI: 10.1002/brb3.2645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/10/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND In comparison with the people with normal sight, the mean center of gravity (COG) velocity is significantly higher among blind people. A strong relationship has been shown between jaw and neck sensorimotor and postural control. The purpose of this study was to determine the effect of different static and dynamic jaw positions on postural stability among subjects with blindness. METHODS Postural stability was measured as COG velocity in 39 blind subjects under the following five conditions: resting jaw (natural jaw position with no instructions, control), open jaw (teeth of both jaws slightly apart), clenched jaw (teeth tightly closed across each other), chewing (a standard bolus of gum at the natural palace), and tongue position (positioned behind the upper incisors) while standing on firm and foam surfaces. RESULTS The mean COG velocity while standing on the firm surface during resting, open jaw position, clenched jaw position, chewing, and tongue positions were 0.54, 0.50, 0.44, 0.59, and 0.46 deg/s, respectively. The mean COG velocity while standing on the foam surface during resting, open jaw position, clenched jaw position, chewing, and tongue positions were 1.42, 1.23, 1.10, 1.14, and 1.06 deg/s, respectively. Compared to the firm surface, the COG velocity was significantly higher on the foam surface in all five conditions (p < .001). In the comparison between the conditions, there were no significant differences in either the firm or foam surface in all five conditions (p > .05). CONCLUSION People with blindness behave in the same way as sighted subjects on firm and foam surfaces. However, changes in static and dynamic jaw positions do not affect postural stability among them.
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Affiliation(s)
- Ahmad H Alghadir
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Hamayun Zafar
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Zaheen Ahmed Iqbal
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Shahnawaz Anwer
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Amir Iqbal
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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14
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Xia X, Xu Z, Hu F, Hou L, Zhang G, Liu X. Nutrition mediates the relationship between number of teeth and sarcopenia: a pathway analysis. BMC Geriatr 2022; 22:649. [PMID: 35941556 PMCID: PMC9360705 DOI: 10.1186/s12877-022-03350-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/30/2022] [Indexed: 11/24/2022] Open
Abstract
Objectives The relationship between the number of teeth and sarcopenia remains poorly investigated. Although nutrition plays an important role in maintaining bone and muscle health, the complex relationship between number of teeth and nutrition in the pathogenesis of sarcopenia remains to be elucidated. Methods A large multi-ethnic sample of 4149 participants aged over 50 years old from West China Health and Aging Trend (WCHAT) study was analyzed. We examined the associations between number of teeth with nutritional status and sarcopenia, and the mediating role of nutrition in the association between number of teeth and sarcopenia. Sarcopenia was defined according to the Asian Working Group for Sarcopenia 2019. We assessed nutrition using Mini Nutrition Assessment-Short Form (MNA-SF) scale. Direct relationships between number of teeth, nutrition and sarcopenia were assessed using multiple linear regression. Mediation models and structural equation model (SEM) pathway analysis were used to test the mediating role of nutrition in the relationship between number of teeth and sarcopenia. Results Of 4149 participants aged 50 years old or older, the prevalence of sarcopenia was 22.5, 9.0% for moderate sarcopenia, and 13.5% for severe sarcopenia, respectively. Regression analysis indicated a total association between number of teeth (β = − 0.327, 95% CI − 0.471 to − 0.237, p < 0.001) and sarcopenia. After adjusted MNA-SF scores, the association between number of teeth and sarcopenia was still significant (β = − 0.269, 95% CI − 0.364 to − 0.175, p < 0.001), indicating a partial mediation effect of nutrition. Mediation analysis verified nutrition partially mediate the associations between number of teeth and sarcopenia (indirect effect estimate = − 0.0272, bootstrap 95% CI − 0.0324 to − 0.0222; direct effect estimate = − 0.0899, bootstrap 95% CI − 0.1049 to − 0.0738). And this mediation effect was through impacting SMI (indirect effect estimate = − 0.0283, bootstrap 95% CI − 0.0336 to − 0.0232) and grip strength (indirect effect estimate = − 0.0067, bootstrap 95% CI − 0.0094 to − 0.0043). Structural equation model (SEM) framework pathway analysis confirmed the association between number of teeth, nutrition, and sarcopenia. Conclusions Our findings indicated that sarcopenia was associated with number of teeth and poorer nutritional status, with nutrition partially mediating the association between number of teeth and sarcopenia. Our findings supported early nutritional assessment and intervention in oral health to mitigate the risk of sarcopenia.
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Affiliation(s)
- Xin Xia
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang Renmin Nan Lu, Chengdu, Sichuan, China.,Geriatric Health Care and Medical Research Center, Sichuan University, Sichuan Province, Chengdu, China
| | - Zhigang Xu
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang Renmin Nan Lu, Chengdu, Sichuan, China.,Geriatric Health Care and Medical Research Center, Sichuan University, Sichuan Province, Chengdu, China
| | - Fengjuan Hu
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang Renmin Nan Lu, Chengdu, Sichuan, China.,Geriatric Health Care and Medical Research Center, Sichuan University, Sichuan Province, Chengdu, China
| | - Lisha Hou
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang Renmin Nan Lu, Chengdu, Sichuan, China.,Geriatric Health Care and Medical Research Center, Sichuan University, Sichuan Province, Chengdu, China
| | - Gongchang Zhang
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang Renmin Nan Lu, Chengdu, Sichuan, China.,Geriatric Health Care and Medical Research Center, Sichuan University, Sichuan Province, Chengdu, China
| | - Xiaolei Liu
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang Renmin Nan Lu, Chengdu, Sichuan, China. .,Geriatric Health Care and Medical Research Center, Sichuan University, Sichuan Province, Chengdu, China.
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15
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Fadillioglu C, Kanus L, Möhler F, Ringhof S, Hellmann D, Stein T. Influence of Controlled Stomatognathic Motor Activity on Sway, Control and Stability of the Center of Mass During Dynamic Steady-State Balance—An Uncontrolled Manifold Analysis. Front Hum Neurosci 2022; 16:868828. [PMID: 35399352 PMCID: PMC8989727 DOI: 10.3389/fnhum.2022.868828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/02/2022] [Indexed: 11/13/2022] Open
Abstract
Multiple sensory signals from visual, somatosensory and vestibular systems are used for human postural control. To maintain postural stability, the central nervous system keeps the center of mass (CoM) within the base of support. The influence of the stomatognathic motor system on postural control has been established under static conditions, but it has not yet been investigated during dynamic steady-state balance. The purpose of the study was to investigate the effects of controlled stomatognathic motor activity on the control and stability of the CoM during dynamic steady-state balance. A total of 48 physically active and healthy adults were assigned to three groups with different stomatognathic motor conditions: jaw clenching, tongue pressing and habitual stomatognathic behavior. Dynamic steady-state balance was assessed using an oscillating platform and the kinematic data were collected with a 3D motion capturing system. The path length (PL) of the 3D CoM trajectory was used for quantifying CoM sway. Temporal dynamics of the CoM movement was assessed with a detrended fluctuation analysis (DFA). An uncontrolled manifold (UCM) analysis was applied to assess the stability and control of the CoM with a subject-specific anthropometric 3D model. The statistical analysis revealed that the groups did not differ significantly in PL, DFA scaling exponents or UCM parameters. The results indicated that deliberate jaw clenching or tongue pressing did not seem to affect the sway, control or stability of the CoM on an oscillating platform significantly. Because of the task-specificity of balance, further research investigating the effects of stomatognathic motor activities on dynamic steady-state balance with different movement tasks are needed. Additionally, further analysis by use of muscle synergies or co-contractions may reveal effects on the level of muscles, which were not visible on the level of kinematics. This study can contribute to the understanding of postural control mechanisms, particularly in relation to stomatognathic motor activities and under dynamic conditions.
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Affiliation(s)
- Cagla Fadillioglu
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
- *Correspondence: Cagla Fadillioglu
| | - Lisa Kanus
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Felix Möhler
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Steffen Ringhof
- Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany
| | - Daniel Hellmann
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
| | - Thorsten Stein
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
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16
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Stafeev AA, Solov'yev SI, Rozhdestvenskij AS, Rozhdestvenskij DA, Hizhuk AV. [Features of the formation of typical motor patterns of the craniocervical zone in functional disorders in the craniomandibular system]. STOMATOLOGIIA 2022; 101:82-88. [PMID: 35640184 DOI: 10.17116/stomat202210103182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE The aim of the study is to analyze the features of motor patterns formation in the craniocirvical zone with occlusal and functional disorders of the craniomandibular system. MATERIALS AND METHODS 281 patients (201 women and 80 men) were examined at the age from 21 to 32 years. Two groups of individuals were identified based on the short Gambur test. The first group (I) included persons with intact dentition and without signs of functional disorders (n=30). The second group (II) included persons with intact dentition and dysfunction of the craniomandibular system (CMS) (n=30). All patients were examined by a digital analysis of the occlusal relationship. A digital method of capturing and reconstructing movement was used to assess the motor patterns of the craniocervical zone. Analysis of functional occlusion showed that the first contact in persons with functional impairment is predominantly localized on the molars region (χ2=44.1; df=11, p=0.00001). RESULTS In analysis of dynamic occlusion, the time exceed for reaching maximum intercuspation position significantly in group II instead of group I 0.127±0.072 sec and 0.261±0.091 sec (p<0.05). Disconnection time in group II was 0.443±0.096 sec, Which significantly differed from group I (p<0.05). Persons with CCM dysfunction head flexion was 11.00° [9.00°; 13.00°], which is significantly higher than in the comparison group 5.00° [5.00°; 5.50°]. In the transverse plane, an increase in the angle of lateroflexion in persons with functional impairments up to 11.00° [10.00°; 11.00°]. Correlation analysis showed the presence of a direct strong connection between the angle of flexion and the time of separation (r=0.76), as well as the time to reach the maximum intercuspation position (r=0.63). CONCLUSION Thus, functional disorders in the form of occlusal aberrations lead to changes in the cervical spine and head position through the formation of new motor patterns.
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Affiliation(s)
| | | | | | | | - A V Hizhuk
- Omsk State Medical University, Omsk, Russia
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17
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Fadillioglu C, Kanus L, Möhler F, Ringhof S, Schindler HJ, Stein T, Hellmann D. Influence of controlled masticatory muscle activity on dynamic reactive balance. J Oral Rehabil 2021; 49:327-336. [PMID: 34811784 DOI: 10.1111/joor.13284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/27/2021] [Accepted: 11/06/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND The influence of the stomatognatic system on human posture control has been investigated under static conditions, but the effects on dynamic balance have not yet been considered. OBJECTIVE Investigating the influence of different functional stomatognatic activities (jaw clenching (JAW), tongue pressing (TON) and habitual jaw position (HAB)) on postural performance during a dynamic reactive balance task. METHODS Forty-eight physically active and healthy adults were assigned to three groups differing in oral-motor tasks (JAW, TON or HAB). Dynamic reactive balance was assessed by an oscillating platform which was externally perturbed in four directions. Performance was quantified by means of Lehr's damping ratio. Mean speeds of the selected anatomical regions (head, trunk, pelvis, knee and foot) were analysed to determine significant performance differences. RESULTS The groups differed significantly in balance performance in direction F (i.e., forwards acceleration of the platform). Post hoc tests revealed that the JAW group had significantly better performance compared with both the HAB and TON groups. Better performance was associated with a decreased mean speed of the analysed anatomical regions. CONCLUSION JAW can improve dynamic reactive balance but the occurrence of positive effects seems to be task-specific and not general. TON seems not to have any observable effects on dynamic reactive balance performance, at least when evaluating it with an oscillating platform. JAW might be a valuable strategy which could possibly reduce the risk of falls in elderly people; however, further investigations are still needed.
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Affiliation(s)
- Cagla Fadillioglu
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Lisa Kanus
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany
| | - Felix Möhler
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Steffen Ringhof
- Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany
| | - Hans J Schindler
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany.,Research Group Biomechanics, Institute for Mechanics, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Thorsten Stein
- BioMotion Center, Institute of Sports and Sports Science, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Daniel Hellmann
- Department of Prosthodontics, University of Würzburg, Würzburg, Germany.,Dental Academy for Continuing Professional Development, Karlsruhe, Germany
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18
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Differences in Oral Health Status in Elite Athletes According to Sport Modalities. SUSTAINABILITY 2021. [DOI: 10.3390/su13137282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Oral health status may affect physical and sports performance. The purpose of this study was to assess the oral health status and oral health habits of elite athletes according to the performed sports type. A sample of 186 elite athletes divided into individual sports (n = 74; 53 men and 21 women; 24.9 ± 9.3 years) and team sports (n = 112; 97 men and 15 women; 24.5 ± 4.8 years) participated in the study. The decayed, missing, and filled teeth index (DMFT), the oral health impact profile (OHIP), and the diet assessment of caries risk (DACR) were evaluated to assess their oral health status. Athletes in individual modalities had a lower number in total teeth, healthy teeth, and restoration index (p < 0.05). Furthermore, this group showed a greater number of missing (p < 0.001) and decayed teeth (p < 0.05) and a greater DMFT index (p < 0.001). A relationship between sports modality and prevalence of malocclusions (p < 0.01), periodontal plaque (p < 0.05), and the habit of consuming energy drinks (p < 0.05) was also highlighted. Elite athletes who compete in individual sports presented a worse oral situation.
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19
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Nakamura M, Imaoka M, Nakao H, Hida M, Tazaki F, Imai R, Utsunomiya H, Hashizume H. Association between subjective oral dysfunction and locomotive syndrome in community-dwelling older adults. Sci Rep 2021; 11:12591. [PMID: 34131252 PMCID: PMC8206075 DOI: 10.1038/s41598-021-92153-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 06/07/2021] [Indexed: 12/17/2022] Open
Abstract
The need for support and care is a major problem facing societies around the world. Locomotive syndrome (LS) refers to a condition in which people require healthcare services because of problems associated with locomotion. Oral dysfunction is also associated with various long-term care factors including activities of daily living. The purpose of this study was to determine the association between oral dysfunction and LS. The study participants were 407 elderly people living in a rural area in Japan. Evaluation of oral dysfunction was based on subjective judgment by each participant. LS was assessed using Locomo-25, which is a self-administered questionnaire and was defined by a Locomo-25 score ≥ 7 points. Those with a “decline in masticatory function” and “difficulty swallowing” had higher odds of LS than those without these dysfunctions (odds ratio (OR) = 2.134, 2.007, respectively). Furthermore, participants with a Locomo-25 score ≥ 11 had higher odds of a “decline in masticatory function” (OR = 2.657) than those with a Locomo-25 score < 11, and those with a Locomo-25 score ≥ 9 had higher odds of “difficulty swallowing” (OR = 2.411) than those with a Locomo-25 score < 9. These findings suggest that a strong relationship exists between oral dysfunction and LS.
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Affiliation(s)
- Misa Nakamura
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan. .,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan.
| | - Masakazu Imaoka
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan
| | - Hidetoshi Nakao
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan
| | - Mitsumasa Hida
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan
| | - Fumie Tazaki
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan
| | - Ryota Imai
- Cognitive Reserve Research Center, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan.,Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan
| | - Hirotoshi Utsunomiya
- Department of Strategic Surveillance for Functional Food andComprehensive Traditional Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan
| | - Hiroshi Hashizume
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Wakayama, Japan.,School of Health and Nursing Science, Wakayama Medical University, Wakayama, Wakayama, Japan
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20
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Oxilia G, Menghi Sartorio JC, Bortolini E, Zampirolo G, Papini A, Boggioni M, Martini S, Marciani F, Arrighi S, Figus C, Marciani G, Romandini M, Silvestrini S, Pedrosi ME, Mori T, Riga A, Kullmer O, Sarig R, Fiorenza L, Giganti M, Sorrentino R, Belcastro MG, Cecchi JM, Benazzi S. Exploring directional and fluctuating asymmetry in the human palate during growth. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2021; 175:847-864. [PMID: 33973654 PMCID: PMC8360102 DOI: 10.1002/ajpa.24293] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 03/23/2021] [Accepted: 04/09/2021] [Indexed: 01/20/2023]
Abstract
Objectives Palate morphology is constantly changing throughout an individual's lifespan, yet its asymmetry during growth is still little understood. In this research, we focus on the study of palate morphology by using 3D geometric morphometric approaches to observe changes at different stages of life, and to quantify the impact of directional and fluctuating asymmetry on different areas at different growth stages. Materials and Methods The sample consists of 183 individuals (1–72 years) from two identified human skeletal collections of 19th and early 20th Century Italian contexts. A 3D‐template of 41 (semi)landmarks was applied on digital palate models to observe morphological variation during growth. Results Asymmetrical components of the morphological structure appears multidirectional on the entire palate surface in individuals <2 years old and become oriented (opposite bilateral direction) between 2 and 6 years of age. Specifically, directional asymmetry differentially impacts palate morphology at different stages of growth. Both the anterior and posterior palate are affected by mild alterations in the first year of life, while between 2 and 6 years asymmetry is segregated in the anterior area, and moderate asymmetry affects the entire palatal surface up to 12 years of age. Our results show that stability of the masticatory system seems to be reached around 13–35 years first by females and then males. From 36 years on both sexes show similar asymmetry on the anterior area. Regarding fluctuating asymmetry, inter‐individual variability is mostly visible up to 12 years of age, after which only directional trends can be clearly observed at a group level. Discussion Morphological structure appears instable during the first year of life and acquires an opposite asymmetric bilateral direction between 2 and 6 years of age. This condition has been also documented in adults; when paired with vertical alteration, anterior/posterior asymmetry seems to characterize palate morphology, which is probably due to mechanical factors during the lifespan. Fluctuating asymmetry is predominant in the first period of life due to a plausible relationship with the strength of morphological instability of the masticatory system. Directional asymmetry, on the other hand, shows that the patterning of group‐level morphological change might be explained as a functional response to differential inputs (physiological forces, nutritive and non‐nutritive habits, para‐masticatory activity as well as the development of speech) in different growth stages. This research has implications with respect to medical and evolutionary fields. In medicine, palate morphology should be considered when planning orthodontic and surgical procedures as it could affect the outcome. As far as an evolutionary perspective is concerned the dominance of directional asymmetries in the masticatory system could provide information on dietary and cultural habits as well as pathological conditions in our ancestors.
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Affiliation(s)
- Gregorio Oxilia
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Jessica C Menghi Sartorio
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy.,Department of Enterprise Engineering, "Mario Lucertini" - Tor Vergata University, Rome, Italy
| | - Eugenio Bortolini
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Giulia Zampirolo
- Section for Evolutionary Genomics Øster Farimagsgade, University of Copenhagen, København, Denmark
| | - Andrea Papini
- Dentist's Surgery, via Walter Tobagi 35, Prato, 59100, Italy
| | - Marco Boggioni
- Dentist's Surgery, via D'Andrade 34/207, Genoa Sestri Ponente, 16154, Italy
| | - Sergio Martini
- Dental Lab Technician, via Milani, 1, Verona, 37124, Italy
| | - Filippo Marciani
- Dentist's Surgery, Studio Dentistico Marciani Dr. Filippo, Via Romagnoli, 14, Lanciano, 66034, Italy
| | - Simona Arrighi
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Carla Figus
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Giulia Marciani
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Matteo Romandini
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Sara Silvestrini
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Maria Elena Pedrosi
- Department of Biological, Geological and Environmental Sciences-, BiGeA University of Bologna, Bologna, Italy
| | - Tommaso Mori
- Department of Biology, University of Florence, Florence, Italy
| | - Alessandro Riga
- Department of Biology, University of Florence, Florence, Italy
| | - Ottmar Kullmer
- Senckenberg Research Institute, Senckenberganlage 25, Frankfurt am Main, 60325, Germany.,Department of Paleobiology and Environment, Institute of Ecology, Evolution, and Diversity, Johann Wolfgang Goethe University, Frankfurt, Germany
| | - Rachel Sarig
- Department of Oral biology, The Goldschleger School of Dental Medicine and the Dan David Center for Human Evolution, the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Luca Fiorenza
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Monash University, Melbourne, Victoria, Australia
| | - Melchiore Giganti
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy.,Radiology University Unit, University Hospital, Ferrara, Italy
| | - Rita Sorrentino
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy.,Department of Biological, Geological and Environmental Sciences-, BiGeA University of Bologna, Bologna, Italy
| | - Maria Giovanna Belcastro
- Department of Biological, Geological and Environmental Sciences-, BiGeA University of Bologna, Bologna, Italy
| | | | - Stefano Benazzi
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy.,Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
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21
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Didier H, Assandri F, Gaffuri F, Cavagnetto D, Abate A, Villanova M, Maiorana C. The Role of Dental Occlusion and Neuromuscular Behavior in Professional Ballet Dancers' Performance: A Pilot Study. Healthcare (Basel) 2021; 9:251. [PMID: 33804335 PMCID: PMC8000128 DOI: 10.3390/healthcare9030251] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/19/2021] [Accepted: 02/20/2021] [Indexed: 02/07/2023] Open
Abstract
Clinical practice and some scientific evidence seem to suggest that there is some kind of relationship between the components that form the postural chain. For professional dancers, good posture and balance are essential. The aim of the present retrospective study is to evaluate whether gnathological treatment could have an impact on the postural balance and sports performance of professional ballet dancers. Electromyographic (EMG) data and balance tests were recorded before and after six months of treatment with a customized occlusal splint. Twenty athletes were examined during ballet exercises in terms of balance and speed of execution by two experienced clinicians. The results showed statistically significant changes for all EMG tests carried out and the Flamingo Balance Test. It appears that the use of a customized occlusal device improved neuro-muscular coordination and the overall performance of dancers.
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Affiliation(s)
- Henri Didier
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy; (H.D.); (F.G.); (D.C.); (A.A.); (C.M.)
- Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy
| | - Fausto Assandri
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy; (H.D.); (F.G.); (D.C.); (A.A.); (C.M.)
- Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy
| | - Francesca Gaffuri
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy; (H.D.); (F.G.); (D.C.); (A.A.); (C.M.)
- Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy
| | - Davide Cavagnetto
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy; (H.D.); (F.G.); (D.C.); (A.A.); (C.M.)
- Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy
| | - Andrea Abate
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy; (H.D.); (F.G.); (D.C.); (A.A.); (C.M.)
- Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy
| | - Michele Villanova
- Areadance Milano, Affiliata ASI Riconosciuta dal CONI, Viale Cassinis 33, 20100 Milan, Italy;
| | - Carlo Maiorana
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20100 Milan, Italy; (H.D.); (F.G.); (D.C.); (A.A.); (C.M.)
- Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20100 Milan, Italy
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22
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Iwasaki M, Watanabe Y, Motokawa K, Shirobe M, Inagaki H, Motohashi Y, Mikami Y, Taniguchi Y, Osuka Y, Seino S, Kim H, Kawai H, Sakurai R, Edahiro A, Ohara Y, Hirano H, Shinkai S, Awata S. Oral frailty and gait performance in community-dwelling older adults: findings from the Takashimadaira study. J Prosthodont Res 2021; 65:467-473. [PMID: 33612666 DOI: 10.2186/jpr.jpr_d_20_00129] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE This cross-sectional study compared gait performance between community-dwelling older adults with and without accumulated deficits in oral health, defined as oral frailty. METHODS A total of 1,082 individuals (439 men and 643 women; mean age, 77.1 years) from the Takashimadaira study were included in the current analysis. Based on a multifaceted oral health assessment, oral frailty was defined as having three or more of the following six components: (i) fewer teeth, (ii) low masticatory performance, (iii) low articulatory oral motor skills, (iv) low tongue pressure, (v) difficulties in eating, and (vi) swallowing. Eight gait parameters were assessed using an electronic walkway. Gait characteristics comparison between groups with and without oral frailty was performed using multiple linear regression models. Models were adjusted for age, sex, educational status, income, smoking, drinking, physical activity level, height, body mass index, comorbidities, and the presence of chronic pain. RESULTS Oral frailty was observed in 227 (21.0%) participants. After adjusting for potential confounders, the participants with oral frailty had slower gait speed, shorter stride and step length, wider step width, and longer double support duration as well as higher variability of stride length and step length. CONCLUSIONS Oral frailty was associated with poor gait performance among community-dwelling older adults.
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Affiliation(s)
| | - Yutaka Watanabe
- Tokyo Metropolitan Institute of Gerontology, Tokyo.,Gerodontology, Department of Oral Health Science, Faculty of Dental Medicine, Hokkaido University, Sapporo
| | | | - Maki Shirobe
- Tokyo Metropolitan Institute of Gerontology, Tokyo
| | | | | | - Yurie Mikami
- Tokyo Metropolitan Institute of Gerontology, Tokyo
| | - Yu Taniguchi
- Tokyo Metropolitan Institute of Gerontology, Tokyo.,The National Institute for Environmental Studies, Ibaraki
| | - Yosuke Osuka
- Tokyo Metropolitan Institute of Gerontology, Tokyo
| | | | - Hunkyung Kim
- Tokyo Metropolitan Institute of Gerontology, Tokyo
| | | | | | | | - Yuki Ohara
- Tokyo Metropolitan Institute of Gerontology, Tokyo
| | | | - Shoji Shinkai
- Tokyo Metropolitan Institute of Gerontology, Tokyo.,Kagawa Nutrition University, Saitama
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23
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Ito W, Komiyama T, Ohi T, Hiratsuka T, Matsuyama S, Sone T, Tsuji I, Watanabe M, Hattori Y. Relationship Between Oral Health and Fractures in Community-Dwelling Older Japanese Adults. J Am Med Dir Assoc 2021; 22:1184-1189.e1. [PMID: 33587891 DOI: 10.1016/j.jamda.2021.01.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/28/2020] [Accepted: 01/04/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate the relationship between poor oral health and the incidence of fall-related fractures in older Japanese individuals. DESIGN A 9-year prospective cohort study. SETTING AND PARTICIPANTS Participants comprised 937 community-dwelling older Japanese adults aged 70 years or older. They all lived in the Tsurugaya district, a suburban area of Sendai city, and underwent comprehensive geriatric assessment, including an oral examination, in a public facility. MEASUREMENTS The exposure variables were related to oral health status (posterior occlusal support, number of remaining teeth, and occlusal force). The outcome measure was the incidence of fall-related fractures, which was determined by National Health Insurance data. Analyzed covariates included age, sex, medical history, smoking, alcohol drinking, educational level, depressive symptoms, cognitive impairment, physical function, body mass index, and history of falls. Statistical relationships were examined by calculating hazard ratios (HRs) at 95% confidence intervals (CIs) using the Cox proportional hazard model. RESULTS In the multivariate analysis, the HRs of fall-related fractures were significantly higher in those with unilateral posterior occlusal support (HR, 2.72; 95% CI, 1.13-6.55) and no posterior occlusal support (HR, 2.58; 95% CI, 1.29-5.15) than in those with bilateral posterior occlusal support. The HRs (95% CIs) of fall-related fractures in individuals with 10-19 and 1-9 teeth and edentulous individuals were 1.77 (0.81-3.89), 2.67 (1.24-5.75), and 2.31 (1.01-5.28), respectively, compared to those with ≥20 teeth. CONCLUSIONS AND IMPLICATIONS Poor oral health status is a risk factor for the incidence of fall-related fractures in community-dwelling older Japanese individuals. The findings suggest that attention should be focused on oral health status to further understand the risk of fall-related fractures among community-dwelling older adults.
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Affiliation(s)
- Wakana Ito
- Division of Aging and Geriatric Dentistry, Department of Rehabilitation Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, Japan
| | - Takamasa Komiyama
- Division of Aging and Geriatric Dentistry, Department of Rehabilitation Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, Japan.
| | - Takashi Ohi
- Division of Aging and Geriatric Dentistry, Department of Rehabilitation Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, Japan; Japanese Red Cross Ishinomaki Hospital, Ishinomaki, Miyagi, Japan
| | - Takako Hiratsuka
- Division of Aging and Geriatric Dentistry, Department of Rehabilitation Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, Japan
| | - Sanae Matsuyama
- Division of Epidemiology, Department of Health Informatics and Public Health, Tohoku University School of Public Health, Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Toshimasa Sone
- Division of Epidemiology, Department of Health Informatics and Public Health, Tohoku University School of Public Health, Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ichiro Tsuji
- Division of Epidemiology, Department of Health Informatics and Public Health, Tohoku University School of Public Health, Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Makoto Watanabe
- Institute of Living and Environmental Sciences, Miyagi Gakuin Women's University, Sendai, Miyagi, Japan
| | - Yoshinori Hattori
- Division of Aging and Geriatric Dentistry, Department of Rehabilitation Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, Japan
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24
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Klostermann I, Kirschneck C, Lippold C, Chhatwani S. Relationship between back posture and early orthodontic treatment in children. Head Face Med 2021; 17:4. [PMID: 33546715 PMCID: PMC7863507 DOI: 10.1186/s13005-021-00255-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 01/15/2021] [Indexed: 11/25/2022] Open
Abstract
Background The purpose of this study was to analyze the relationship between body posture and sagittal dental overjet in children before and after early orthodontic treatment with removable functional orthodontic appliances. Methods Angle Class II patients (mean age 8.2 ± 1.2 years; 29 males and 25 females) with a distinctly enlarged overjet (> 9 mm) were retrospectively examined regarding body posture parameters before and after early orthodontic treatment. In addition, changes in overjet were investigated with the aid of plaster models. Forms of transverse dysgnathism (crossbite, lateral malocclusions) and open bite cases were excluded. Body posture parameters kyphosis, lordosis, surface rotation, pelvic tilt, pelvic torsion and trunk imbalance were analyzed by means of rasterstereographical photogrammetry to determine, if the orthodontic overjet correction is associated with specific changes in posture patterns. Results In nearly all patients an overjet correction and an improvement regarding all body posture and back parameters could be noted after early orthodontic treatment. Overjet reduction (− 3.9 mm ± 2.1 mm) and pelvic torsion (− 1.28° ± 0,44°) were significantly (p < 0.05) and moderately correlated (R = 0.338) with no significant associations found for the other posture and back parameters (p > 0.05). Conclusion Overjet reduction during early orthodontic treatment may be associated with a detectable effect on pelvic torsion.
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Affiliation(s)
- Isa Klostermann
- Department of Orthodontics, University of Muenster, Waldeyerstraße 30, 48149, Muenster, Germany
| | - Christian Kirschneck
- Department of Orthodontics, University Medical Centre of Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Carsten Lippold
- Department of Orthodontics, University of Muenster, Waldeyerstraße 30, 48149, Muenster, Germany.
| | - Sachin Chhatwani
- Department of Orthodontics, School of Dentistry, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen Str. 45, 58455, Witten, Germany
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25
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Brandner M, Strobl V, Bizjak B, Lindner S, Langmann A. Kraniomandibuläre Dysfunktion und Asthenopie – Literaturübersicht mit Fallbeispielen. SPEKTRUM DER AUGENHEILKUNDE 2021. [DOI: 10.1007/s00717-020-00476-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Zusammenfassung
Hintergrund
Kann ein latentes Schielen (Heterophorie) nicht fusionell überwunden werden, treten asthenope Beschwerden wie intermittierende Doppelbilder, Blendempfindlichkeit, retrobulbäres Druckgefühl, Visusschwankungen und Kopfschmerzen auf. Häufig ist der zugrunde liegende Pathomechanismus unklar. Neben verschiedenen ophthalmologischen und neurologischen Erkrankungen wird auch die kraniomandibuläre Dysfunktion (CMD) als möglicher Auslöser einer Asthenopie beschrieben.
Material und Methode
Präsentation von 3 Fallbeispielen von Patientinnen mit CMD und Asthenopie und Literaturübersicht.
Resultate
Im Rahmen der Literaturrecherche wurden einige Arbeiten zur Anatomie und zu neurologischen Verschaltungen zwischen dem trigeminalen und dem okulomotorischen System gefunden, die über Veränderungen der Pupillenweite, der Konvergenz und der Stellung der Augen mögliche pathomechanische Zusammenhänge zwischen einer Malokklusion bzw. CMD und Heterophorie mit Asthenopie postulieren.
Schlussfolgerung
Bei Beschwerdepersistenz von asthenopen Beschwerden trotz optimaler orthoptischer Therapie kann eine weiterführende kieferorthopädische Abklärung in Betracht gezogen werden.
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26
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Sujir N, Ahmed J, Nath M, Shenoy N, Ongole R, Binnal A. Effect of Myogenous Temporomandibular Joint Disorders on Cervical Range of Motion: A Prospective Study. JOURNAL OF OROFACIAL SCIENCES 2021. [DOI: 10.4103/jofs.jofs_158_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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27
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Ohlendorf D, Fay V, Avaniadi I, Erbe C, Wanke EM, Groneberg DA. Association between constitution, axiography, analysis of dental casts, and postural control in women aged between 41 and 50 years. Clin Oral Investig 2020; 25:2595-2607. [PMID: 32986167 PMCID: PMC8060179 DOI: 10.1007/s00784-020-03571-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 09/03/2020] [Indexed: 11/24/2022]
Abstract
Objectives The aim of this study was to investigate the relationship between anamnestic, axiographic and occlusal parameters and postural control in healthy women aged between 41 and 50 years. Materials and methods A total of 100 female participants aged between 41 and 50 (45.12 ± 2.96) years participated in the study. In addition to completing a general anamnesis questionnaire, lower jaw movements were measured axiographically, dental occlusion parameters were determined using a model analysis and postural parameters were recorded using a pressure measurement platform. The significance level was 5%. Results An increasing weight and a rising BMI lead to a weight shifted from the rearfoot (p ≤ 0.01/0.04) to the forefoot (p ≤ 0.01/0.02). A limited laterotrusion on the right resulted in a lower forefoot load and an increased rearfoot load (p ≤ 0.01). Laterotrusion to the left (extended above the standard) showed a lower frontal sway (p ≤ 0.02) and a reduced elliptical area, height and width (p ≤ 0.01, 0.02, 0.03). Thus, the extent of deviation correlated with reduced right forefoot loading (p ≤ 0.03) and the extent of deflection correlated with increased left foot loading (p ≤ 0.01). The higher the extent of angle class II malocclusion, the larger the ellipse area (p ≤ 0.04) and the ellipse height (p ≤ 0.02) resulted. Conclusions There is a connection between weight, BMI and laterotrusion, as well as between angle class II malocclusion and postural control in women aged between 41 and 50 years. Interdisciplinary functional examinations of mandibular movements treating possible limitations can be conducive for an improvement of postural control. Clinical relevance Angle class II malocclusion has a negative influence on postural control.
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Affiliation(s)
- Daniela Ohlendorf
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt am Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt am Main, Germany.
| | - V Fay
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt am Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt am Main, Germany
| | - I Avaniadi
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt am Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt am Main, Germany
| | - C Erbe
- Department of Orthodontics, School of Dentistry, University Medical Center of the Johannes Gutenberg University Mainz, Augustusplatz 2, 55131, Mainz, Germany
| | - E M Wanke
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt am Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt am Main, Germany
| | - D A Groneberg
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt am Main, Theodor-Stern-Kai 7, Building 9A, 60590, Frankfurt am Main, Germany
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Abstract
PURPOSE Sarcopenia has recently been attracting attention as an early sign of the need for nursing care in older adults. Some studies have reported that oral health is related to sarcopenia and its diagnostic factors (hand grip strength, walking speed, and skeletal muscle mass). However, the relationship between oral health and sarcopenia remains poorly investigated and no review to date has compiled the available research on this relationship. The aim of this review was to summarize the current evidence describing the association between oral health and sarcopenia. STUDY SELECTION The internet database PubMed was searched using various combinations of related and synonymous keywords for "oral" or "dental" or "oral health" or "oral function" and "sarcopenia" or "walking speed" or "hand grip strength" or "skeletal muscle mass." A total of 27 studies found to be eligible were critically evaluated and their key findings were summarized. RESULTS Most of the studies were cross-sectional and conducted in Japan. A wide range of oral factors, including number of teeth, occlusal support, periodontal state, occlusal force, mastication, tongue pressure, and swallowing, were covered. The overall findings were that oral health indices could be significantly associated with sarcopenia and its diagnostic factors. CONCLUSIONS Relationships may exist between aspects of oral health and sarcopenia or its diagnostic factors. However, reports showing associations between oral health and sarcopenia are scarce, and definitive conclusions could not be drawn. Further longitudinal studies are necessary to confirm these relationships.
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Affiliation(s)
- Kodai Hatta
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitatiom Osaka
| | - Kazunori Ikebe
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitatiom Osaka
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29
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Nam HJ, Lee JH, Hong DS, Jung HC. The Effect of Wearing a Customized Mouthguard on Body Alignment and Balance Performance in Professional Basketball Players. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17176431. [PMID: 32899368 PMCID: PMC7504132 DOI: 10.3390/ijerph17176431] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 11/16/2022]
Abstract
The present study examined the influence of a customized mouthguard on body alignment and balance performance in professional basketball players. Twenty-three professional male basketball players, aged 25.8 ± 8.6 years old, were voluntarily assigned to participate in three treatments, including no treatment (no mouthguard), acute treatment (wearing a mouthguard), and repeated treatments (8 weeks follow-up). Body alignment status, such as spinal and pelvic posture and balance performance, were measured at each time point using a 3D Formetric III (Germany) and a postural control device (Posturomed 202, Germany), respectively. A repeated MANOVA analysis with a Bonferroni post hoc test was applied, and the adjusted p-value was set at 0.02. No significant treatment effect was observed in body alignment (p = 0.302). However, univariate analysis showed a significant difference in pelvic torsion, where it was decreased after acute and repeated mouthguard treatments compared to no treatment (p < 0.001). Kyphotic angle also increased significantly following 8 weeks of treatment compared to no treatment (p < 0.001) and acute treatment (p < 0.002). There was a significant treatment effect on balance performance (p < 0.001). Both static and dynamic balance performance improved following 8 weeks of treatment (p < 0.001). Our study revealed that a customized mouthguard provides a benefit to balance performance. Notably, repeated treatment impacts on balance performance more than acute treatment. Although our findings did not show a significant effect on body alignment, some positive results, such as pelvic torsion and kyphotic angle, may provide substantial information for developing future longitudinal studies with large sample sizes.
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Affiliation(s)
- Hae Joo Nam
- Department of Health Rehabilitation, O-san University, 45 Cheonghak-ro, Osan-si, Gyeonggi-do 18119, Korea; (H.J.N.); (D.-S.H.)
| | - Joon-Hee Lee
- Department of Coaching, College of Physical Education, Kyung Hee University (Global Campus), 1732 Deokyoungdaero, Giheung-gu, Yongin-si, Gyeonggi-do 17014, Korea;
- Correspondence: ; Tel.: +82-31-201-2758
| | - Dae-Seok Hong
- Department of Health Rehabilitation, O-san University, 45 Cheonghak-ro, Osan-si, Gyeonggi-do 18119, Korea; (H.J.N.); (D.-S.H.)
| | - Hyun Chul Jung
- Department of Coaching, College of Physical Education, Kyung Hee University (Global Campus), 1732 Deokyoungdaero, Giheung-gu, Yongin-si, Gyeonggi-do 17014, Korea;
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Stamos A, Mills S, Malliaropoulos N, Cantamessa S, Dartevelle JL, Gündüz E, Laubmeier J, Hoy J, Kakavas G, Le Garrec S, Kaux JF, Ghrairi M, Lohrer H, Engels-Deutsch M. The European Association for Sports Dentistry, Academy for Sports Dentistry, European College of Sports and Exercise Physicians consensus statement on sports dentistry integration in sports medicine. Dent Traumatol 2020; 36:680-684. [PMID: 32790959 DOI: 10.1111/edt.12593] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 11/28/2022]
Abstract
Sports medicine has a multidisciplinary character which allows different medical specialties to investigate the prevention, etiology, and treatment of athletes' diseases. This leads to a decreased risk of injury and a faster return to play as well as an improvement in the overall health and well-being of athletes of any level and in all sports around the world. The oral health of athletes is now the subject of great attention internationally because of the increased prevalence and incidence of health issues such as dental caries and erosion, periodontal disease, defective occlusion, temporomandibular joint disorders, and orofacial injuries. Scientific evidence and research on these issues have also intensified over recent years. The best way to maintain player's health and performance is to include oral health in sports medicine with physicians and dentists working closely together at the individual level as well as with the cooperation between local and international sports medicine and dentistry associations. The European Association for Sports Dentistry, the Academy for Sports Dentistry, and the European College of Sports and Exercise Physicians are leading the way and have worked together to develop a consensus statement describing the main pillars of oral health integration into sports medicine based on the most common oral diseases found in athletes and linked to exercise, sports, and performance.
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Affiliation(s)
- Athanasios Stamos
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece
| | - Steve Mills
- Academy for Sports Dentistry (ASD), Springfield, IL, USA
| | - Nikos Malliaropoulos
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece
| | - Sophie Cantamessa
- European Association for Sports Dentistry (EA4SD), Rambouillet, France
| | - Jean-Luc Dartevelle
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece
| | - Elif Gündüz
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece.,Academy for Sports Dentistry (ASD), Springfield, IL, USA
| | | | - Jeffrey Hoy
- Academy for Sports Dentistry (ASD), Springfield, IL, USA
| | - Georgios Kakavas
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece
| | - Sébastien Le Garrec
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece
| | - Jean-François Kaux
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece
| | - Mourad Ghrairi
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece
| | - Heinz Lohrer
- European Association for Sports Dentistry (EA4SD), Rambouillet, France.,European College for Sports and Exercise Physicians (ECOSEP), Thessaloniki, Greece
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[Effects of knee pain on postural control excluding the musculature of the craniomandibular system]. DER ORTHOPADE 2020; 49:510-521. [PMID: 31720704 DOI: 10.1007/s00132-019-03831-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Knee pain can influence postural control in addition to changes in the anatomical structure of the knee joints. OBJECTIVE Because the influence of imbalances in the craniomandibular system has been proven multiple times, it is the aim of the present work to investigate the influence of various knee diagnoses on postural control excluding occlusal information by means of symmetrical packing using cotton rolls. MATERIALS AND METHODS One hundred and fifteen patients (74 male/41 female) aged 18-75 years with an average BMI of 25.13 ± 3.66 kg/m2 took part in the study, among them 34 patients (26 male/8 female) with cruciate ligament injury, 26 (16 male/10 female) with meniscal lesions, 24 (13 male/11 female) with arthrosis, 21 (11 male/10 female) with patellar pain, and 10 (8 male/2 female) with other painful knee complaints. Postural control was increased using a force platform, the degree of severity of the disorder was recorded using the "Knee Injury and Osteoarthritis Outcome" questionnaire, and the occlusion packed on both sides with cotton rolls in the premolar area. RESULTS With increasing age, patients with knee arthrosis are more likely to stand on the hindfoot. In those with patellar disorder, increased weight-bearing on the forefoot correlates with increasing BMI. An increase in weight-bearing on the forefoot on the side of the uninjured knee in people with patellar disorder results not only in a reduction in quality of life but also level of daily activity. DISCUSSION The percentage weight-bearing on the zones of the feet differs in unilateral knee injuries (in particular, comparison of the side with the knee injury and the uninjured side). Age, BMI or gender are influencing factors. Because various correlations and/or effects in the subgroups of knee injuries are generated, an injury-specific analysis should be carried out. These effects are also identifiable in the subjective assessment of quality of life.
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Amaricai E, Onofrei RR, Suciu O, Marcauteanu C, Stoica ET, Negruțiu ML, David VL, Sinescu C. Do different dental conditions influence the static plantar pressure and stabilometry in young adults? PLoS One 2020; 15:e0228816. [PMID: 32045439 PMCID: PMC7012393 DOI: 10.1371/journal.pone.0228816] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/23/2020] [Indexed: 11/18/2022] Open
Abstract
Background Posture is influenced by many factors and dental occlusion seems to have its role on postural stabilization. Our rationale to perform the study was to find out if there are differences of static plantar pressure and stabilometric parameters depending on different dental conditions. Methods The observational study consisted in plantar pressure assessment and stabilometric analysis of 95 right-handed healthy volunteer subjects (mean age 22.94 ± 2.52 years) by using the PoData system. Each subject followed four measurements with open eyes: mandibular postural position, maximum intercuspation, biting on cotton rolls and maximum mouth opening. Plantar pressure was recorded on 1st and 5th metatarsal heads and heel, and was expressed as percentage of weight distribution on each foot. The recorded centre of pressure (CoP) parameters were: CoP path length, 90%confidence ellipse area and maximum CoP speed. Statistical analysis used repeated-measures ANOVA with Bonferroni posthoc analysis and Friedman test. Results Loading on the left 5th metatarsal head was significantly higher in maximum mouth opening condition when compared to maximum intercuspation and to biting on cotton rolls. The left heel loading was significantly lower in the maximum mouth opening in comparison to maximum intercuspation. The CoP path length and maximum CoP speed were significantly higher in maximum mouth opening compared to the other three conditions. Confidence ellipse area had significantly lower values in maximum intercuspation and in the biting on cotton rolls conditions compared to the mandibular postural position, and in maximum intercuspation compared to maximum mouth opening. Conclusion In young adults with an optimum functional occlusion the static plantar pressure is influenced by the maximum mouth opening. An improved postural stability was recorded in maximum intercuspation (a condition used during swallowing) in comparison to mandibular postural position (a condition that allows relaxation of the masticatory muscles after functional moments).
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Affiliation(s)
- Elena Amaricai
- Department of Rehabilitation, Physical Medicine and Rheumatology, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
| | - Roxana Ramona Onofrei
- Department of Rehabilitation, Physical Medicine and Rheumatology, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
- * E-mail:
| | - Oana Suciu
- Department of Rehabilitation, Physical Medicine and Rheumatology, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
| | - Corina Marcauteanu
- Department of Occlusiology, Faculty of Dentistry, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
| | - Eniko Tunde Stoica
- Department of Occlusiology, Faculty of Dentistry, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
| | - Meda Lavinia Negruțiu
- Dental Materials and Dental Prosthesis Department, Faculty of Dentistry, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
| | - Vlad Laurentiu David
- Department of Pediatric Surgery and Orthopedics, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
| | - Cosmin Sinescu
- Dental Materials and Dental Prosthesis Department, Faculty of Dentistry, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
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Dias A, Redinha L, Rodrigues MJ, Silva L, Pezarat-Correia P. A kinematic analysis on the immediate effects of occlusal splints in gait and running body sway patterns. Cranio 2020; 40:119-125. [PMID: 31996119 DOI: 10.1080/08869634.2020.1721173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Objective: This study aims to determine whether changes in dental occlusion are correlated to body posture during walking and running.Methods: Fifteen healthy subjects were assessed by a prosthodontist and deemed asymptomatic. Analyses of gait and running were performed in three conditions, in random order: a) occlusal splint; b) placebo splint; and c) no splint. The occlusal splint used in this study positioned the mandible in a stable position. Kinematic data was collected using a 3D motion capture system.Results: Changes in dental occlusion induced by occlusal splints did not influence body sway during gait or running. No significant differences were found between any of the test conditions.Conclusion: Occlusal splints have no effect on body sway during gait or running. High inter-subject variability in kinematic parameters was found, which should be considered in future studies.
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Affiliation(s)
- Amândio Dias
- CIPER - Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal.,Kinesiolab, Instituto Piaget, Campus de Almada, Almada, Portugal
| | - Luís Redinha
- Faculdade de Medicina Dentária, Universidade de Lisboa, Lisboa, Portugal
| | | | - Luís Silva
- Kinesiolab, Instituto Piaget, Campus de Almada, Almada, Portugal.,Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE, USA
| | - Pedro Pezarat-Correia
- CIPER - Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal
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Zafar H, Alghadir AH, Iqbal ZA, Iqbal A, Anwer S, Alnahdi AH. Influence of different jaw positions on dynamic balance using Y-balance test. Brain Behav 2020; 10:e01507. [PMID: 31859447 PMCID: PMC6955923 DOI: 10.1002/brb3.1507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/29/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Jaw sensory-motor system has been shown to affect static balance of the body. It would be interesting to know whether it can influence dynamic balance as well. The objective of this study is to examine the influence of different jaw positions on dynamic balance using the Y-balance test. METHODS Eighty healthy male participants aged 20-35 years were invited to participate in this study. Dynamic balance was measured by the Y-balance test in three directions (anterior, posteromedial, and posterolateral) for each leg separately in three jaw positions: resting jaw (control), open-jaw, and clenched jaw. RESULTS There were no significant differences in reach distances between the different jaw positions except in the posterolateral direction. In comparison with resting jaw position, reach distance was significantly higher in open-jaw position for the right leg and in clenched and open-jaw positions for the left leg in the posterolateral direction. CONCLUSIONS Although various studies have shown direct or indirect influence of jaw sensory-motor system on static postural control, results of this study point to limited relation with dynamic postural control among healthy subjects. However, it supports the potential of the jaw sensory-motor system to affect motor control during functional tasks in patients with postural instability or similar disorders.
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Affiliation(s)
- Hamayun Zafar
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.,Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umea University, Umea, Sweden
| | - Ahmad H Alghadir
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Zaheen Ahmed Iqbal
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Amir Iqbal
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Shahnawaz Anwer
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.,Department of Building and Real-Estate, Hong Kong Polytechnic University, Kowloon, Hong Kong SAR
| | - Ali H Alnahdi
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Association between constitution, medical history, axiography and postural control in women aged between 21 to 30 years. Sci Rep 2019; 9:20051. [PMID: 31882913 PMCID: PMC6934647 DOI: 10.1038/s41598-019-56681-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 12/11/2019] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to determine association between constitutional, medical history and axiographic parameters with postural control parameters. Overall, 106 healthy female subjects aged between 21 and 30 years were measured. Data collection was carried out by completing a questionnaire on constitutional parameters, illnesses, accidents and medical/orthodontic therapies, as well as by axio- and posturographic measurements. Data were analyzed using correlations, pair comparisons and group comparisons. The significance level was set at p ≤ 0.05. The statistical evaluation showed significant correlations between sporting exercise and body sway in the sagittal direction (p ≤ 0.03), the BMI and the load on the forefoot/rear foot (p ≤ 0.01), the mouth opening and the load on the forefoot/rearfoot (p ≤ 0.01) and the presence of a deviation with the load on the left/right foot (p ≤ 0.01). The physical condition as well as the temporo-mandibular system are associated with the postural control in young women. Therefore, a holistic diagnosis and therapy will be supported by the present outcomes.
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Are changes in the stomatognatic system able to modify the eye balance in dyslexia? J Oral Biol Craniofac Res 2019; 9:166-171. [PMID: 30976507 DOI: 10.1016/j.jobcr.2019.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 03/18/2019] [Accepted: 03/23/2019] [Indexed: 11/21/2022] Open
Abstract
Objectives To clarify the link between eye muscle function and oral information by comparing 21 dyslexic readers (DR) and 14 normal readers (NR). Methods Changes in vertical heterophoria (VH) were measured using the Maddox Rod Test performed according to oral modifications and postural conditions. The Spearman correlation was used to assess whether reading delay was correlated with the lability index. Results Overall, 50% of NR children and 81% of DR experienced at least one variation in visual perception (p = 0.053). Among DR, the less reading delay they had, the higher their index of lability (p = 0.026), whereas there was no significant correlation among NR. Changes in the Maddox Test were more frequent in DR than in NR after the addition of sensory and postural stimuli, except for one specific posture. For sensory stimuli, the mean lability index was 1.35 in NR and 4.19 in DR, (p = 0.001). For postural stimuli, it was 0.71 and 2.61, (p = 0.003). Conclusions It is possible to modify visual perception by changing sensory or mechanical stimuli. Changes are more frequent in DR than in NR. Postural control can be improved with guided oral stimulations. Significance These results reinforce the importance of professional cooperation in the care of dyslexic readers.
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Zafar H, Alghadir AH, Iqbal ZA. Effect of jaw functional status on neck muscle endurance. Arch Oral Biol 2019; 101:30-33. [PMID: 30875591 DOI: 10.1016/j.archoralbio.2019.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 02/19/2019] [Accepted: 03/01/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To investigate the effect of resting jaw and maximum voluntary clenching on neck flexor and extensor muscle endurance. DESIGN Neck flexor and extensor endurance was measured in a college health clinic in 85 male college students in two test positions: resting jaw (control) and maximum voluntary clenching. RESULTS Mean neck flexor muscle endurance values during resting jaw and maximum voluntary clenching were 70.06 SD 28.24, and 60.03 SD 16.5, seconds respectively. Mean neck extensor muscle endurance values during resting jaw and maximum voluntary clenching were 105.54 SD 29.9, and 98.32 SD 24.54, respectively. Both values were significantly lower while maximum voluntary clenching as compared to resting jaw position (p < 0.05). CONCLUSION Modification of jaw position can affect neck muscle endurance. Results of this study further supports sensory-motor relation between jaw and neck region.
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Affiliation(s)
- Hamayun Zafar
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia; Department of Odontology, Clinical Oral Physiology, Faculty of Medicine, Umea University, Umea, Sweden
| | - Ahmad H Alghadir
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Zaheen A Iqbal
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
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Julià-Sánchez S, Álvarez-Herms J, Burtscher M. Dental occlusion and body balance: A question of environmental constraints? J Oral Rehabil 2019; 46:388-397. [DOI: 10.1111/joor.12767] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/05/2019] [Accepted: 01/13/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Sonia Julià-Sánchez
- Departament de Fisiologia i Immunologia; Universitat de Barcelona (UB); Barcelona Spain
| | - Jesús Álvarez-Herms
- Departament de Fisiologia i Immunologia; Universitat de Barcelona (UB); Barcelona Spain
| | - Martin Burtscher
- Department of Sport Science; University Innsbruck; Innsbruck Austria
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Heil L, Maltry L, Lehmann S, Heil D, Lehmann C, Kopp S, Wanke EM, Bendels MHK, Groneberg DA, Ohlendorf D. The impact of a total knee arthroplasty on jaw movements, upper body posture, plantar pressure distribution, and postural control. Cranio 2019; 39:35-46. [PMID: 30732552 DOI: 10.1080/08869634.2019.1574999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: The purpose of this study was to examine the influence of a total knee arthroplasty (TKA) on linked cranial and caudal structures. Methods: Thirty-five (14f/21m) subjects participated in this study: 15 subjects (9f, 6m) pre- and post- TKA and a control group of 20 subjects (5f, 15m). The measurements included: jaw condyle position and movement, back scan, plantar pressure distribution, and body sway. Results: There were no significant differences in electronic position analysis of the jaw; however, the protrusion of the TKA group improved (p = 0.001). The test group had a more anteriorly inclined thoracic spine and a less pronounced lumbar lordosis. Before and after surgery, the body sway in the test group was larger. Conclusion: The TKA affected most prominently the static mechanisms of the postural control and the spine position. The trajectories of the mandible during protrusion also changed slightly.
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Affiliation(s)
- Laura Heil
- Department of Orthodontics, School of Dentistry, Faculty of Medical Science, Goethe University , Frankfurt, Germany
| | - Laura Maltry
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Faculty of Medical Science, Goethe University , Frankfurt am Main, Germany
| | - Sebastian Lehmann
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Faculty of Medical Science, Goethe University , Frankfurt am Main, Germany
| | - Daniel Heil
- Department of Orthodontics, School of Dentistry, Faculty of Medical Science, Goethe University , Frankfurt, Germany
| | - Christoph Lehmann
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Faculty of Medical Science, Goethe University , Frankfurt am Main, Germany
| | - Stefan Kopp
- Department of Orthodontics, School of Dentistry, Faculty of Medical Science, Goethe University , Frankfurt, Germany
| | - Eileen M Wanke
- Department of Orthodontics, School of Dentistry, Faculty of Medical Science, Goethe University , Frankfurt, Germany
| | - Michael H K Bendels
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Faculty of Medical Science, Goethe University , Frankfurt am Main, Germany
| | - David A Groneberg
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Faculty of Medical Science, Goethe University , Frankfurt am Main, Germany
| | - Daniela Ohlendorf
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Faculty of Medical Science, Goethe University , Frankfurt am Main, Germany
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Analysis of Dental Malocclusion and Neuromotor Control in Young Healthy Subjects through New Evaluation Tools. J Funct Morphol Kinesiol 2019; 4:jfmk4010005. [PMID: 33467320 PMCID: PMC7739282 DOI: 10.3390/jfmk4010005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/03/2018] [Accepted: 01/07/2019] [Indexed: 02/06/2023] Open
Abstract
The presence of a correlation between stomatognathic and postural systems has been investigated by different authors trying to identify a possible influence of dental occlusion on body posture and balance. The aim of this study was to evaluate the relationship between dental occlusion and neuromuscular control in a healthy young population using modern evaluation tools. 25 subjects (9 males and 16 females, aged 23 to 44) were evaluated for dental occlusion, particularly in relation to overjet and overbite parameters, anterior and posterior crossbite, scissor bite, mandibular crowding, molar and canine class, and deviation of the median dental line. Neuromotor control was assessed using two different types of stabilometric platforms in both monopodalic and bipodalic equilibriums (Prokin-B and MF-Stability, Tecnobody, Italy). All subjects were evaluated with and without cotton rolls positioned between the upper and lower arches at the premolar level in order to temporarily eliminate any pathological contact. In all 25 subjects, no statistically significant differences were revealed between the evaluations performed with and without cotton rolls in all the analyzed conditions (in static, in dynamics, with open and closed eyes). This study did not find a significant correlation between dental occlusion and neuromuscular control in a young and healthy population.
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Dias A, Redinha L, Vaz JR, Cordeiro N, Silva L, Pezarat-Correia P. Effects of occlusal splints on shoulder strength and activation. Ann Med 2019; 51:15-21. [PMID: 30628462 PMCID: PMC7888807 DOI: 10.1080/07853890.2019.1566766] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Introduction: The use of oral appliances to enhance sports performance has been advocated by some authors, however, studies addressing the effectiveness of these strategies are inconclusive. Methods: Here we investigate the effects of dental occlusions on shoulder strength. Fourteen healthy male subjects (age = 21.67 ± 0.86 years) without temporomandibular joint (TMJ) disorder participated in this study. Isokinetic strength was evaluated in shoulder abduction/adduction and arm external/internal rotation tests. Three randomised conditions were assessed: (1) occlusal splint (OS), which repositioned the TMJ in centric relation; (2) placebo splint (PS); and (3) no-splint (N). The strength tests were performed at a speed of 60°/sec in concentric mode. Muscle activity was measured by surface electromyography (EMG) in the main muscles engaged in the movements. Results: Significant differences in peak torque between OS and both of the other experimental conditions were found in some of the analyzed variables. Moreover, there was significantly higher muscular EMG activation in the OS condition when compared to the other conditions for some of the tested muscles. These data suggest that splints may have a positive ergogenic effect on shoulder muscular strength in healthy male subjects. Conclusion: OS may provide an advantage for healthy subjects engaged in sports whereby shoulder and arm strength are important for performance. Key messages Occlusal splints in centric relation position have an ergogenic effect, by increasing strength and muscle activation on shoulder in healthy subjects. These results could have implications for sports or other physical activities were arm and shoulder strength are important.
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Affiliation(s)
- Amândio Dias
- a Neuromuscular Research Lab, CIPER, Faculdade de Motricidade Humana , Universidade de Lisboa , Lisbon , Portugal.,b Kinesiolab, Instituto Piaget , Campus de , Almada , Portugal
| | - Luís Redinha
- c Faculdade de Medicina Dentária , Universidade de Lisboa , Lisbon , Portugal
| | - João R Vaz
- d Universidade Europeia , Lisbon , Portugal.,e Department of Biomechanics , University of Nebraska at Omaha , Omaha , NE , USA
| | - Nuno Cordeiro
- f Escola Superior de Saúde Dr. Lopes Dias, Instituto Politécnico de Castelo Branco , Castelo Branco , Portugal
| | - Luís Silva
- e Department of Biomechanics , University of Nebraska at Omaha , Omaha , NE , USA
| | - Pedro Pezarat-Correia
- a Neuromuscular Research Lab, CIPER, Faculdade de Motricidade Humana , Universidade de Lisboa , Lisbon , Portugal
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Leroux E, Leroux S, Maton F, Ravalec X, Sorel O. Influence of dental occlusion on the athletic performance of young elite rowers: a pilot study. Clinics (Sao Paulo) 2018; 73:e453. [PMID: 30517283 PMCID: PMC6238821 DOI: 10.6061/clinics/2017/e453] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 07/04/2018] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES The present study aimed to assess the influence of dental occlusion on body posture and the competitive performance of young elite rowers. METHOD Dental occlusion disturbance devices were used to simulate dental malocclusions. We assessed the influence of malocclusion on the body balance, paravertebral muscle contraction symmetry, and muscular power of young elite rowers. A nonparametric permutation test for repeated measures ANOVA, a Cochran's Q test for paired data and a paired Student's t-test were used in order to statistically evaluate the influence of artificial occlusal disturbance on each factor. A force platform and a Dyno Concept 2 machine were used as measuring instruments. RESULTS A total of 7 members of the "Pôle France Aviron" (age range of 15-17 years) were enrolled in the study. None of the body balance parameters was significantly influenced by the artificial occlusal disturbance. The interposition of an occlusal silicone splint significantly increased the proportion of athletes presenting asymmetric muscular contractions from 14.3% to 85.7% (p=0.025) and induced a significant 17.7% decrease in the athletes' muscular power (p=0.030). CONCLUSIONS This study shows the negative impacts of an occlusal disturbance on the athletic performance of young elite rowers. The detection of malocclusion traits by regular occlusal monitoring would be of great interest in this population.
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Affiliation(s)
- Eric Leroux
- Service d'Odontologie et Chirurgie Buccale, CHU de Rennes, Rennes, France
- Université de Rennes 1, Rennes, France
- *Corresponding author. E-mail:
| | - Stéphanie Leroux
- Université de Rennes 1, Rennes, France
- Service de Pédiatrie, CHU de Rennes, Rennes, France
| | - Frédéric Maton
- Fédération Française d'Aviron, Unité médicale du CREPS de Lille, Wattignies, France
| | - Xavier Ravalec
- Service d'Odontologie et Chirurgie Buccale, CHU de Rennes, Rennes, France
- Université de Rennes 1, Rennes, France
| | - Olivier Sorel
- Service d'Odontologie et Chirurgie Buccale, CHU de Rennes, Rennes, France
- Université de Rennes 1, Rennes, France
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Correlations between the Visual Apparatus and Dental Occlusion: A Literature Review. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2694517. [PMID: 30112371 PMCID: PMC6077684 DOI: 10.1155/2018/2694517] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 06/18/2018] [Accepted: 06/24/2018] [Indexed: 11/18/2022]
Abstract
Background The development of visual functions takes place in the first months of postnatal life and is completed around the one year of age. In this period, the maturation of the retina and the visual pathways occur, and binocular bonds are established at the level of the visual cortex. During this phase and then for a few years, a certain plasticity of the visual functions remains, which seem therefore susceptible to change both in a pejorative sense (by pathogens) and in an improving sense (for example, by therapeutic measures). This plasticity involves also the oculomotor system. Due to this plasticity, many researchers believe that there are some functional correlations between the visual and the stomatognathic apparatus. But the scientific evidence of this statement has not been clarified yet. Aim The purpose of this review is therefore to analyze the clinical data in this field and finally to establish their level of evidence. Studies have been collected from the main databases, based on keywords. Results The results showed a middle level of evidence since most of the data derive from case-control studies and cross-sectional studies. Conclusions The level of evidence allows establishing that there is a correlation between ocular disorders (myopia, hyperopia, astigmatism, exophoria, and an unphysiological gait due to ocular convergence defects) and dental occlusion, but it is not possible to establish the cause-effect relationship. Future studies should be aimed at establishing higher levels of evidence (prospective, controlled, and randomized studies).
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Dias A, Redinha L, Mendonça GV, Pezarat-Correia P. A systematic review on the effects of occlusal splint therapy on muscle strength. Cranio 2018; 38:187-195. [DOI: 10.1080/08869634.2018.1505085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Amândio Dias
- Neuromuscular Research Lab, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal
| | - Luís Redinha
- Faculty of Dental Medicine, University of Lisbon, Lisboa, Portugal
| | - Gonçalo V. Mendonça
- Neuromuscular Research Lab, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal
| | - Pedro Pezarat-Correia
- Neuromuscular Research Lab, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal
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Effects of Dental Occlusion on Body Sway, Upper Body Muscle Activity and Shooting Performance in Pistol Shooters. Appl Bionics Biomech 2018; 2018:9360103. [PMID: 30140310 PMCID: PMC6081538 DOI: 10.1155/2018/9360103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/17/2018] [Accepted: 06/04/2018] [Indexed: 12/01/2022] Open
Abstract
Occlusal splints, to some extent, have been related to reduced body sway in a static position and increased muscle activity in the upper limbs. However, how dental occlusion status affects sports performance remains unclear. Here, we investigated whether occlusal splints that reposition the temporomandibular joint (TMJ) influenced body posture, muscle activity, and performance in 10-meter pistol shooters. Thirteen national-level male shooters (age = 38.8 ± 10.9 yrs) were recruited for this study, and cleared of any cervical pathology. An occlusal splint (OS) and a placebo splint (PS) were fabricated for each of the subjects, with the mandibular and maxillary position verified by an expert dentist, with the aid of an adjustable articulator. Surface electromyography (EMG) was assessed in the upper limb that holds the pistol while the subjects were standing on a force platform. Subjects performed two series of 10 shots for each of the three experimental conditions (OS, PS, N (no splint)) in randomized order, with the mandible in a rest position. Results revealed similar centre of pressure (COP) parameters in all conditions, despite a reduction in the average oscillation area caused by the OS. There were also no significant differences in EMG activity between conditions in the five upper limb muscles monitored. Consistent with this, shooting performance was similar in all conditions, despite a reduction in shot dispersion in subjects using OS. Thus, changes in dental occlusion status induced by OS do not affect body posture, upper limb EMG muscle activity, or shot performance in healthy male pistol shooters.
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Teeth and Covariates: Association with Risk of Falls. Int J Dent 2018; 2018:7127209. [PMID: 30034470 PMCID: PMC6035810 DOI: 10.1155/2018/7127209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 03/28/2018] [Accepted: 04/23/2018] [Indexed: 11/22/2022] Open
Abstract
Purpose Falls occur commonly in geriatric populations and undesirably influence their life, morbidity, and mortality. The aim of this study was to analyze the association between the number of teeth present among the elderly population and covariates in relation to the risk of falls. Materials and Methods This study was conducted at various old age homes in the Klang Valley region of Malaysia involving the geriatric population aged 60 years and above. A detailed questionnaire consisting of sociodemographic data including sex, age, household income, and dental variables such as the number of teeth and chewing difficulty was obtained. The Tinetti test (TT) was used to evaluate the patients' ability to walk, to maintain postural balance, and to determine their risk of falling. The short version of the Geriatric Depression Scale was used to assess depression among the participants, and the Barthel Scale was used to analyze the subject's ability to perform the activities of daily living (ADL). Results Statistically significant association was observed in relation to the number of teeth present and risk of falls (p < 0.05). Subjects who had 19 teeth or less in total had moderate to highest risk of falls (p=0.001) in comparison with subjects who had 20 teeth or more. Those aged 70 years and above showed the highest risk of falls (p=0.001) in comparison with the subjects aged between 60 and 69 years. Subjects with depression (p=0.03) and presence of illness related to fall showed statistically significant difference (p=0.001) in comparison with those who did not suffer from the same. Compromised ADL (p=0.001) (which included ability to perform several tasks like indoor mobility, climbing stairs, toilet use, and feeding) and low monthly income (p=0.03) was also observed among subjects who had higher risk of falls. Conclusion According to the results achieved, there was a high statistically significant association observed between the number of teeth present, age, depression, ADL, and presence of illness in relation to the risk of falling among the geriatric population. Henceforth, oral rehabilitation of elderly patients with less number of teeth may reduce their risk of falls.
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Hwang HY, Choi JS, Kim HE. Masticatory efficiency contributing to the improved dynamic postural balance: A cross-sectional study. Gerodontology 2018; 35:254-259. [PMID: 29808520 DOI: 10.1111/ger.12349] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate whether masticatory efficiency is associated with dynamic postural balance. BACKGROUND Masticatory dysfunction can cause deterioration of general health due to nutritional imbalances, thereby negatively affecting postural balance. However, few studies have investigated the association between masticatory efficiency and postural balance. MATERIALS AND METHODS The masticatory efficiency of 74 participants was evaluated by calculating mixing ability index (MAI) using a wax cube. The timed up and go test (TUGT) was used to measure dynamic balance. Participants with an MAI above or below the median value of 1.05 were defined as having high or low masticatory efficiency, respectively. An independent samples t-test was used to identify significant differences in TUGT, according to masticatory efficiency. Analysis of covariance was performed to adjust for confounding factors. Logistic regression analysis was used to assess the correlation between masticatory efficiency and postural balance. RESULTS The high masticatory efficiency group could complete the TUGT exercise approximately 1.67 seconds faster while maintaining the postural balance, compared to the low masticatory efficiency group (P = .005). Furthermore, the postural imbalance odds of the group with high mastication efficiency decreased by 0.14-fold, relative to the group with low mastication efficiency (95% confidence interval: 0.04-0.46). CONCLUSION With some reservations about statistical power, the association found between masticatory efficiency and postural balance justifies further investigations to confirm the strength of the associations, and possibly to identify causal relationships between mastication and posture in old age.
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Affiliation(s)
- Hae-Yun Hwang
- Department of Health Science, Graduate School of Gachon University, Incheon, Republic of Korea
| | - Jun-Seon Choi
- Department of Health Science, Graduate School of Gachon University, Incheon, Republic of Korea
- Department of Dental Hygiene, College of Health Science, Gachon University, Incheon, Republic of Korea
| | - Hee-Eun Kim
- Department of Health Science, Graduate School of Gachon University, Incheon, Republic of Korea
- Department of Dental Hygiene, College of Health Science, Gachon University, Incheon, Republic of Korea
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Mochida Y, Yamamoto T, Fuchida S, Aida J, Kondo K. Does poor oral health status increase the risk of falls?: The JAGES Project Longitudinal Study. PLoS One 2018; 13:e0192251. [PMID: 29389975 PMCID: PMC5794168 DOI: 10.1371/journal.pone.0192251] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 01/18/2018] [Indexed: 11/19/2022] Open
Abstract
We sought to examine if self-reported oral health conditions regarding difficulty eating tough foods, dry mouth, choking, number of teeth and denture use are associated with incident falls. Our study was based on panel data from the Japan Gerontological Evaluation Study conducted in 2010 and 2013 using self-administered questionnaires. Data from 19,995 male and 20,858 female community-dwelling older people aged ≥65 years without a history of falls within the previous year in 2010 were analyzed. Multilevel logistic regression models were used to determine the association between poor oral health in 2010 and multiple incident falls in 2013 after adjusting for possible confounders and considering differences in municipalities. The percentage of males and females who reported falls in 2013 were 2.4% and 2.1%, respectively. After adjusting for age, educational attainment, equivalized income, depression, self-rated health, instrumental activities of daily living, body mass index, present illness related to falls, social participation, walking in min/day, alcohol drinking status, and municipality population density, dry mouth in males (odds ratio [OR] = 1.41; 95% confidence interval [CI]: 1.12–1.77) and choking in females (OR = 1.64; 95% CI: 1.27–2.11) were significantly associated with incident falls. Difficulty eating tough foods in both sexes and choking in males were marginally associated with incident falls (p<0.1). Females having 10–19 teeth without dentures (OR = 1.63; 95% CI: 1.14–2.31), ≤9 teeth with dentures (OR = 1.36; 95% CI: 1.03–1.80), and ≤9 without dentures (OR = 1.46; 95% CI: 1.02–2.08) were significantly associated with incident falls compared with those having ≥20 teeth, respectively. These findings suggest that poor oral function, having fewer teeth, and not using dentures are predictors of incident falls. Further studies are needed to determine whether improving oral health can reduce the risk of falls.
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Affiliation(s)
- Yuki Mochida
- Division of Dental Sociology, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Tatsuo Yamamoto
- Division of Dental Sociology, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
- * E-mail:
| | - Shinya Fuchida
- Division of Dental Sociology, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Jun Aida
- Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Katsunori Kondo
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
- Center for Well–being and Society, Nihon Fukushi University, Nagoya, Japan
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Bollero P, Ricchiuti MR, Laganà G, DI Fusco G, Lione R, Cozza P. Correlations between dental malocclusions, ocular motility, and convergence disorders: a cross-sectional study in growing subjects. ACTA ACUST UNITED AC 2017; 10:289-294. [PMID: 29285332 DOI: 10.11138/orl/2017.10.3.289] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective The purpose of the study was to analyze the association between dento-skeletal malocclusions, ocular motility, and convergence disorders in growing subjects. Materials and methods 84 subjects (49 males, 35 females) with a mean age of 7.3±1.7 years were enrolled in a screening procedure for celiac disease at the Department of Gastroenterology of the University of Rome "Tor Vergata". Each child underwent an orthodontic, orthoptic, and ophtalmological examination. Pearson's Chi-Square test with Yates' correction and Fisher's exact test were conducted to assess the association between orthoptic defects and malocclusions (p<0.05). Results Ocular motility disorders were present in 44.9% of males and in 57.1% of females, while convergence defects were present in 10.2% of males and in 2.9% of females. Ocular motility disorders were more frequent in subjects with Angle Class III malocclusion (66.7%) than in subjects with Angle Class II (59.1%) and Class I (45.8%) malocclusion. Convergence defects were equally frequent in Angle Class I and Class II malocclusion (5.1%), while none subject presenting with Angle Class III malocclusion exhibited convergence defects. A statistically significant correlations was found between ocular motility disorders and unilateral cross-bite with midline deviation. Conclusion Ocular motility defects had a significant greater prevalence in subjects presenting with unilateral cross-bite and midline deviation. The importance of role of orthodontic diagnosis among interdisciplinary treatment in growing children should be recognized.
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Affiliation(s)
- P Bollero
- Department of Clinical Sciences and Traslation Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - M R Ricchiuti
- Department of Clinical Sciences and Traslation Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - G Laganà
- Department of Clinical Sciences and Traslation Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - G DI Fusco
- Department of Clinical Sciences and Traslation Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - R Lione
- Department of Clinical Sciences and Traslation Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - P Cozza
- Department of Clinical Sciences and Traslation Medicine, University of Rome "Tor Vergata", Rome, Italy
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