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Thomas DC, Manfredini D, Patel J, George A, Chanamolu B, Pitchumani PK, Sangalli L. Sleep bruxism: The past, the present, and the future-evolution of a concept. J Am Dent Assoc 2024; 155:329-343. [PMID: 38363252 DOI: 10.1016/j.adaj.2023.12.004] [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: 09/09/2023] [Revised: 12/26/2023] [Accepted: 12/26/2023] [Indexed: 02/17/2024]
Abstract
BACKGROUND The concept of sleep bruxism (SB) has evolved exponentially over the past several decades. Many theories and hypotheses have been proposed as to the definition, pathophysiology, and management of SB, from the early 1960s through the present. The role of peripheral factors, such as dental occlusion, in the pathogenesis of SB has been discarded. TYPES OF STUDIES REVIEWED The authors searched several electronic databases (ie, PubMed, Google Scholar, Web of Science, Embase, and Ovid MEDLINE) for studies on bruxism. The search was conducted from January 1961 through May 2023 and yielded 4,612 articles, of which 312 were selected for comprehensive review after eliminating duplicates and nonfocused articles. RESULTS There has been an evident progressive shift from the role of peripheral factors, such as dental occlusion, to more central factors, such as the involvement of a central pattern generator as well as the autonomic nervous system, in the genesis of bruxing movements. There is continued robust interest in the dental community to elucidate the contributing factors involved in SB. CONCLUSIONS AND PRACTICAL IMPLICATIONS The neurophysiology of SB appears to be leaning more toward central rather than peripheral factors. There is increasing evidence of the role of the autonomic nervous system, genetics, and comorbidities in the genesis of SB. The scientific literature seems to refute the role of dental occlusion in the causation of bruxing movements. As per the literature, there has been a paradigm shift in the definition and genesis of SB and its possible dental implications and management, which also highlights the need for succinct scientific studies in this regard.
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Conti PCR, Cunha CO, Conti ACDCF, Bonjardim LR, Barbosa JS, Costa YM. Secondary bruxism: A valid diagnosis or just a coincidental finding of additional masticatory muscle activity? A narrative review of literature. J Oral Rehabil 2024; 51:74-86. [PMID: 37688286 DOI: 10.1111/joor.13592] [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: 10/07/2022] [Revised: 08/08/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
INTRODUCTION Bruxism is defined as a repetitive masticatory muscle activity that can manifest it upon awakening (awake bruxism-AB) or during sleep (sleep bruxism-SB). Some forms of both, AB and SB can be associated to many other coexistent factors, considered of risk for the initiation and maintenance of the bruxism. Although controversial, the term 'secondary bruxism' has frequently been used to label these cases. The absence of an adequate definition of bruxism, the non-distinction between the circadian manifestations and the report of many different measurement techniques, however, are important factors to be considered when judging the literature findings. The use (and abuse) of drugs, caffeine, nicotine, alcohol and psychoactive substances, the presence of respiratory disorders during sleep, gastroesophageal reflux disorders and movement, neurological and psychiatric disorders are among these factors. The scarcity of controlled studies and the complexity and interactions among all aforementioned factors, unfortunately, does not allow to establish any causality or temporal association with SB and AB. The supposition that variables are related depends on different parameters, not clearly demonstrated in the available studies. OBJECTIVES This narrative review aims at providing oral health care professionals with an update on the co-risk factors and disorders possibly associated with bruxism. In addition, the authors discuss the appropriateness of the term 'secondary bruxism' as a valid diagnostic category based on the available evidence. CONCLUSION The absence of an adequate definition of bruxism, the non-distinction between the circadian manifestations and the report of many different measurement techniques found in many studies preclude any solid and convincing conclusion on the existence of the 'secondary' bruxism.
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Affiliation(s)
- Paulo Cesar R Conti
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
| | - Carolina Ortigosa Cunha
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
| | - Ana Cláudia de Castro F Conti
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
- Department of Orthodontics and Pediatric Dentistry, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Leonardo R Bonjardim
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
- Department of Biologic Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | | | - Yuri Martins Costa
- Bauru Orofacial Group, University of São Paulo, Bauru, Brazil
- Department of Biosciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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Verhoeff MC, Koutris M, Berendse HW, van Dijk KD, Lobbezoo F. Parkinson's disease, temporomandibular disorder pain and bruxism and its clinical consequences: a protocol of a single-centre observational outpatient study. BMJ Open 2022; 12:e052329. [PMID: 35437243 PMCID: PMC9016408 DOI: 10.1136/bmjopen-2021-052329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION A recent questionnaire-based study suggested that bruxism and painful temporomandibular disorders (TMD pain) may be more prevalent in patients with Parkinson's disease (PD) compared with controls. The presence of both bruxism and TMD pain may negatively influence patients' quality of life. The present study is designed to clinically and more objectively investigate the presence of bruxism and TMD pain in patients with PD. The secondary aim of the study is to identify factors associated with bruxism and TMD pain in patients with PD, such as disease severity and dopaminergic medication usage. Furthermore, the presence of tooth wear in patients with PD will be studied as this can be a major consequence of bruxism. Finally, deviations in saliva composition that may contribute to tooth wear will be studied. METHODS AND ANALYSIS This is a single-centre observational outpatient study at the Amsterdam University Medical Centres, location VUmc. All patients with a clinical diagnosis of PD will be eligible for inclusion. Participants will fill in a set of questionnaires. Subsequently, patients will be examined clinically for, among others, TMD pain, presence and severity of tooth wear, and deviations in saliva composition. Sleep-time registrations will take place for 5 nights with the GrindCare GC4 (ie, a portable, single-channel electromyographic recorder) to assess sleep bruxism and simultaneously by the use of the BruxApp for 5 days to assess awake bruxism. We will partly use data collected during standard clinical care to minimise patient burden. ETHICS AND DISSEMINATION The scientific and ethical aspects of this study protocol have been approved by the Medical Ethics Review Committee of the Amsterdam UMC, location VUmc; NL. 2019.143. Informed consent will be obtained from all participants. The results will be published in a peer-reviewed journal, if relevant presented at conferences, and published as part of a PhD thesis. TRIAL REGISTRATION NUMBER NL8307.
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Affiliation(s)
| | - Michail Koutris
- Orofacial Pain and Dysfunction, ACTA, Amsterdam, The Netherlands
| | - Henk W Berendse
- Neurology, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Karin D van Dijk
- Epilepsy Netherlands Foundation Sleep-Wake Centre, Heemstede, The Netherlands
| | - F Lobbezoo
- Orofacial Pain and Dysfunction, ACTA, Amsterdam, The Netherlands
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Boscato N, Exposto F, Nascimento GG, Svensson P, Costa YM. Is bruxism associated with changes in neural pathways? A systematic review and meta-analysis of clinical studies using neurophysiological techniques. Brain Imaging Behav 2022; 16:2268-2280. [PMID: 35088353 DOI: 10.1007/s11682-021-00601-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2021] [Indexed: 12/23/2022]
Abstract
This study aimed to systematically review the literature to identify clinical studies assessing neuroplasticity changes induced by or associated with bruxism or a tooth-clenching task using neurophysiological techniques. Searches were performed in five electronic databases (PubMed, EMBASE, Scopus, Web of Science, and Google Scholar) in April 2020. This review included clinical studies using neurophysiological techniques to assess neuroplasticity changes in healthy participants before and after a tooth-clenching task or comparing bruxers and non-bruxers. The quality assessment was performed with the Joanna Briggs Institute tool and Grading of Recommendations Assessment, Development, and Evaluation. Meta-analyses were conducted with studies reporting similar comparisons regarding masseter motor evoked potential amplitude and signal change outcomes. Of 151 articles identified in the searches, nine were included, and five proceeded to meta-analysis. Included studies presented moderate to very low methodological quality. From these included studies, eight evaluated bruxers and non-bruxers, of which five of them observed brain activity differences between groups, and three found no differences. Even so, all studies have suggested distinct difference in the central excitability between bruxers and non-bruxers, the meta-analysis revealed no statistically significant differences (P > 0.05). It appears that bruxism seems, indeed, to be associated with distinct differences in the neural pathways related to the control of the jaw-closing muscles, but that considerable variability in terms of classification of bruxism and assessment of neuroplasticity hamper a definite conclusion. Future research projects should take these concerns into consideration in order to further the understanding of bruxism physiology and pathophysiology.
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Affiliation(s)
- Noéli Boscato
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Gonçalves Chaves Street 457, CEP 96015-560, Pelotas, RS, Brazil. .,Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.
| | - Fernando Exposto
- Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.,Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark
| | - Gustavo G Nascimento
- Section for Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Peter Svensson
- Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.,Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark.,Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Yuri M Costa
- Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.,Department of Biosciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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Winocur-Arias O, Winocur E, Shalev-Antsel T, Reiter S, Shifra L, Emodi-Perlman A, Friedman-Rubin P. Painful Temporomandibular Disorders, Bruxism and Oral Parafunctions before and during the COVID-19 Pandemic Era: A Sex Comparison among Dental Patients. J Clin Med 2022; 11:jcm11030589. [PMID: 35160041 PMCID: PMC8837112 DOI: 10.3390/jcm11030589] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 12/12/2022] Open
Abstract
Aim: To evaluate the effect of the current coronavirus pandemic on the prevalence of bruxism, oral parafunctions and painful Temporo-Mandibular Disorders (TMDs) and to evaluate the influence of the pandemic on both sexes. Methods: This retrospective study included 288 dental patients who underwent complete anamnesis and examination according to the Diagnostic Criteria for TMD. The study evaluated two patient populations according to the date of examination: (a) pre-COVID-19 pandemic era (108 patients); (b) COVID 19 pandemic era, where 180 patients were examined during the pandemic. Results: A significant increase in parafunction activity was found in both men and women (p < 0.001) during the COVID-19 pandemic. Awake bruxism (AB) and sleep bruxism (SB) was more prevalent during the COVID-19 pandemic solely in women (AB-p < 0.001; SB-p = 0.014). Conclusions: Men and women were affected by the ongoing stress due to the COVID-19 pandemic, yet women showed a higher influence as compared to men. The long-term exposure to elevated levels of anxiety and stress may aggravate or trigger stomatognathic detrimental conditions. Dentists should be aware and regularly monitor their patients regarding the possible existence and consequences of bruxism and TMD.
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Affiliation(s)
- Orit Winocur-Arias
- Department of Oral Pathology and Oral Medicine, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (O.W.-A.); (R.S.)
| | - Efraim Winocur
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (E.W.); (T.S.-A.); (L.S.); (P.F.-R.)
| | - Tamar Shalev-Antsel
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (E.W.); (T.S.-A.); (L.S.); (P.F.-R.)
| | - Shoshana Reiter
- Department of Oral Pathology and Oral Medicine, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (O.W.-A.); (R.S.)
| | - Levartovsky Shifra
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (E.W.); (T.S.-A.); (L.S.); (P.F.-R.)
| | - Alona Emodi-Perlman
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (E.W.); (T.S.-A.); (L.S.); (P.F.-R.)
- Correspondence:
| | - Pessia Friedman-Rubin
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (E.W.); (T.S.-A.); (L.S.); (P.F.-R.)
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Associations between sleep bruxism and other sleep-related disorders in adults: a systematic review. Sleep Med 2021; 89:31-47. [PMID: 34879286 DOI: 10.1016/j.sleep.2021.11.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Systematic reviews on sleep bruxism (SB) as a comorbid condition of other sleep-related disorders are lacking. Such reviews would contribute to the insight of sleep clinicians into the occurrence of SB in patients with other sleep-related disorders, and into the underlying mechanisms of such comorbid associations. This systematic review aimed: 1. to determine the prevalence of SB in adults with other sleep-related disorders; and 2. to determine the associations between SB and other sleep-related disorders, and to explain the underlying mechanisms of these associations. METHODS A systematic search on SB and sleep-related disorders was performed in PubMed, Embase, Cochrane Library, and Web of Science to identify eligible studies published until May 15, 2020. Quality assessment was performed using the Risk of Bias Assessment tool for Non-randomized Studies. RESULTS Of the 1539 unique retrieved studies, 37 articles were included in this systematic review. The prevalence of SB in adult patients with obstructive sleep apnea, restless leg syndrome, periodic limb movement during sleep, sleep-related gastroesophageal reflux disease, REM behavior disorder (RBD), and sleep-related epilepsy was higher than that in the general population. The specific mechanisms behind these positive associations could not be identified. CONCLUSIONS SB is more prevalent in patients with the previously mentioned disorders than in the general population. Sleep arousal may be a common factor with which all the identified disorders are associated, except RBD and Parkinson's disease. The associations between SB and these identified sleep-related disorders call for more SB screening in patients with the abovementioned sleep-related disorders.
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Verhoeff MC, Koutris M, van Selms MKA, Brandwijk AN, Heres MS, Berendse HW, van Dijk KD, Lobbezoo F. Is dopaminergic medication dose associated with self-reported bruxism in Parkinson's disease? A cross-sectional, questionnaire-based study. Clin Oral Investig 2021; 25:2545-2553. [PMID: 32918624 PMCID: PMC8060196 DOI: 10.1007/s00784-020-03566-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/01/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES It is not clear whether dopaminergic medication influences bruxism behaviour in patients with Parkinson's disease (PD). Therefore, the aims are to investigate (i) the prevalence of possible (i.e., self-reported) bruxism (sleep and awake) in PD patients, and (ii) whether the use of dopaminergic medication and other factors (viz., demographic characteristics, PD-related factors, and possible consequences of bruxism) are associated with possible bruxism (sleep or awake). MATERIALS AND METHODS This study concerns a secondary analysis of an earlier published study. Three hundred ninety-five PD patients (67.9 ± 8.6 years of age; 58.7% males) were included. The levodopa equivalent daily dosage (LEDD) was used as a measure of the dopaminergic medication level. Subsequently, a logistic regression analysis was performed for the dependent variables 'awake bruxism' and 'sleep bruxism', with the following predictors: gender, age, LEDD, time since PD diagnosis, temporomandibular disorder (TMD) pain, jaw locks, and tooth wear. RESULTS The prevalence of possible awake and sleep bruxism was 46.0% and 24.3%, respectively. Awake bruxism was associated with sleep bruxism (OR = 8.52; 95% CI 3.56-20.40), TMD pain (OR = 4.51; 95% CI 2.31-8.79), and tooth wear (OR = 1.87; 95% CI 1.02-3.43). Sleep bruxism was associated with tooth wear (OR = 12.49; 95% CI 4.97-31.38) and awake bruxism (OR = 9.48; 95% CI 4.24-21.19). Dopaminergic medication dose was not associated with awake bruxism (OR = 1.0; 95% CI 0.99-1.00) or sleep bruxism (OR = 1.0; 95% CI 0.99-1.00). CONCLUSION Bruxism is a common condition in PD patients, but is not associated with the dopaminergic medication dose. CLINICAL RELEVANCE (Oral) health care providers should be alerted about the possibility of sleep and awake bruxism activity in PD patients, along with this activity's possible negative health outcomes (viz., TMD pain, tooth wear).
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Affiliation(s)
- M C Verhoeff
- Department of Orofacial pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
| | - M Koutris
- Department of Orofacial pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - M K A van Selms
- Department of Orofacial pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - A N Brandwijk
- Department of Orofacial pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - M S Heres
- Department of Orofacial pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - H W Berendse
- Amsterdam University Medical Centres (Amsterdam UMC), Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081, HV, Amsterdam, The Netherlands
| | - K D van Dijk
- Amsterdam University Medical Centres (Amsterdam UMC), Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081, HV, Amsterdam, The Netherlands
- Sleep Wake Centre, Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, The Netherlands
| | - F Lobbezoo
- Department of Orofacial pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Wieckiewicz M, Martynowicz H, Wieczorek T, Wojakowska A, Sluzalec-Wieckiewicz K, Gac P, Poreba R, Mazur G, Winocur E, Smardz J. Consecutive Controlled Case Series on Effectiveness of Opipramol in Severe Sleep Bruxism Management-Preliminary Study on New Therapeutic Path. Brain Sci 2021; 11:146. [PMID: 33499332 PMCID: PMC7911172 DOI: 10.3390/brainsci11020146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/09/2021] [Accepted: 01/19/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Sleep bruxism (SB) management aims to reduce the number and magnitude of bruxism episodes per hour of a patient's sleep and, therefore, reduce the potentially negative clinical consequences. Opipramol belongs to the group of tricyclic antidepressants (TCAs) and is considered as an atypical TCA, as it acts primarily as a sigma receptor agonist. This study aimed to preliminarily determine the effectiveness of opipramol in the management of severe SB. METHODS A total of 19 otherwise healthy participants with severe SB diagnosed during stage I video polysomnography (vPSG) were subjected to an 8-week pharmacotherapy trial with a 100 mg bedtime daily dose of opipramol and were then analyzed by control stage II vPSG. RESULTS The participants included 14 females and 5 males, aged 20-47 years (mean ± standard deviation: 32.32 ± 8.12). A comparison of stage I and II vPSG recordings showed a decrease in all the studied SB parameters in 78.85% of participants. Only in a small group of participants (15.53%) was a non-significant increase of SB parameters observed. CONCLUSIONS A single 100 mg dose of opipramol at bedtime seems to positively affect the reduction of SB in otherwise healthy individuals diagnosed with severe SB. However, the subject requires further research on a larger population including a control group.
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Affiliation(s)
- Mieszko Wieckiewicz
- Department of Experimental Dentistry, Wroclaw Medical University, 50-425 Wroclaw, Poland;
| | - Helena Martynowicz
- Department and Clinic of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.M.); (A.W.); (R.P.); (G.M.)
| | - Tomasz Wieczorek
- Department and Clinic of Psychiatry, Wroclaw Medical University, 50-367 Wroclaw, Poland;
| | - Anna Wojakowska
- Department and Clinic of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.M.); (A.W.); (R.P.); (G.M.)
| | | | - Pawel Gac
- Department of Hygiene, Wroclaw Medical University, 50-345 Wroclaw, Poland;
| | - Rafal Poreba
- Department and Clinic of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.M.); (A.W.); (R.P.); (G.M.)
| | - Grzegorz Mazur
- Department and Clinic of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.M.); (A.W.); (R.P.); (G.M.)
| | - Efraim Winocur
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6139001, Israel;
| | - Joanna Smardz
- Department of Experimental Dentistry, Wroclaw Medical University, 50-425 Wroclaw, Poland;
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Reyad AA, Girgis E, Ayoub A, Mishriky R. Bruxism and psychotropic medications. PROGRESS IN NEUROLOGY AND PSYCHIATRY 2020. [DOI: 10.1002/pnp.560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ayman Antoun Reyad
- Dr Antoun Reyad is a Senior Lecturer in Pharmacology, School of PharmacyUniversity of Wolverhampton
| | - Eriny Girgis
- Dr Girgis is a Dental Officer, Community Dental Service, City of Coventry Health Centre, Coventry and Warwickshire Partnership NHS Trust
| | - Amin Ayoub
- Dr Ayoub is an Associate Professor of DentistryNew York University New York
| | - Raafat Mishriky
- Dr Mishriky is Consultant Psychiatrist, Birmingham and Solihull Mental Health NHS Foundation Trust
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Manfredini D, Colonna A, Bracci A, Lobbezoo F. Bruxism: a summary of current knowledge on aetiology, assessment and management. ACTA ACUST UNITED AC 2019. [DOI: 10.1111/ors.12454] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - A. Colonna
- Postgraduate School of Orthodontics University of Ferrara Ferrara Italy
| | - A. Bracci
- Department of Neuroscience School of Dentistry University of Padova Padova Italy
| | - F. Lobbezoo
- Department of Orofacial Pain and Dysfunction Academic Centre for Dentistry Amsterdam (ACTA) University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands
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12
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Sleep bruxism is related to decreased inhibitory control of trigeminal motoneurons, but not with reticulobulbar system. Neurol Sci 2016; 38:75-81. [DOI: 10.1007/s10072-016-2711-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 09/06/2016] [Indexed: 12/23/2022]
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Ella B, Ghorayeb I, Burbaud P, Guehl D. Bruxism in Movement Disorders: A Comprehensive Review. J Prosthodont 2016; 26:599-605. [DOI: 10.1111/jopr.12479] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2015] [Indexed: 11/30/2022] Open
Affiliation(s)
- Bruno Ella
- Department of Odontology and Buccal Health; Bordeaux University Hospital; Bordeaux France
- Department of Clinical Neurophysiology; Bordeaux University Hospital; Bordeaux France
| | - Imad Ghorayeb
- Department of Odontology and Buccal Health; Bordeaux University Hospital; Bordeaux France
| | - Pierre Burbaud
- Department of Clinical Neurophysiology; Bordeaux University Hospital; Bordeaux France
- Institute of Neurodegenerative Disorders, Bordeaux University; Bordeaux France
| | - Dominique Guehl
- Department of Clinical Neurophysiology; Bordeaux University Hospital; Bordeaux France
- Institute of Neurodegenerative Disorders, Bordeaux University; Bordeaux France
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Autoextraction of Permanent Incisors and Self-Inflicted Orodental Trauma in a Severely Burned Child. Case Rep Dent 2015; 2015:425251. [PMID: 26843993 PMCID: PMC4710927 DOI: 10.1155/2015/425251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 12/20/2015] [Indexed: 11/17/2022] Open
Abstract
Autoextraction is one type of self-injurious behaviour. In the literature, self-injurious behaviours are observed in syndromes and genetic conditions. However, to the best of our knowledge, SIB and autoextraction in a severely burned patient have not been reported to date. This report describes the self-inflicted trauma and autoextraction in a severely burned child, and the management of the child during and after burn treatment.
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Kataoka K, Ekuni D, Mizutani S, Tomofuji T, Azuma T, Yamane M, Kawabata Y, Iwasaki Y, Morita M. Association Between Self-Reported Bruxism and Malocclusion in University Students: A Cross-Sectional Study. J Epidemiol 2015; 25:423-30. [PMID: 25865057 PMCID: PMC4444496 DOI: 10.2188/jea.je20140180] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/07/2015] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Bruxism can result in temporomandibular disorders, oral pain, and tooth wear. However, it is unclear whether bruxism affects malocclusion. The aim of this study was to examine the association between self-reported bruxism and malocclusion in university students. METHODS Students (n = 1503; 896 men and 607 women) aged 18 and 19 years were examined. Malocclusion was defined using a modified version of the Index of Orthodontic Treatment Need. The presence of buccal mucosa ridging, tooth wear, dental impression on the tongue, palatal/mandibular torus, and the number of teeth present were recorded, as well as body mass index (BMI). Additional information regarding gender, awareness of bruxism, orthodontic treatment, and oral habits was collected via questionnaire. RESULTS The proportion of students with malocclusion was 32% (n = 481). The awareness of clenching in males with malocclusion was significantly higher than in those with normal occlusion (chi square test, P < 0.01). According to logistic regression analysis, the probability of malocclusion was significantly associated with awareness of clenching (odds ratio [OR] 2.19; 95% confidence interval [CI], 1.22-3.93) and underweight (BMI <18.5 kg/m(2)) (OR 1.89; 95% CI, 1.31-2.71) in males but not in females. In subgroup analyses, the probability of crowding was also significantly associated with awareness of clenching and underweight (P < 0.01) in males. CONCLUSIONS Awareness of clenching and underweight were related to malocclusion (crowding) in university male students.
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GABA and glutamate levels in occlusal splint-wearing males with possible bruxism. Arch Oral Biol 2015; 60:1021-9. [PMID: 25889171 DOI: 10.1016/j.archoralbio.2015.03.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 03/13/2015] [Accepted: 03/14/2015] [Indexed: 01/04/2023]
Abstract
OBJECTIVE The inhibitory neurotransmitter γ-aminobutyric acid (GABA) plays an important role in the pathophysiology of anxiety behavioural disorders such as panic disorder and post-traumatic stress disorder and is also implicated in the manifestation of tooth-grinding and clenching behaviours generally known as bruxism. In order to test whether the stress-related behaviours of tooth-grinding and clenching share similar underlying mechanisms involving GABA and other metabolites as do anxiety-related behavioural disorders, we performed a Magnetic Resonance Spectroscopy (MRS) study for accurate, in vivo metabolite quantification in anxiety-related brain regions. DESIGN MRS was performed in the right hippocampus and right thalamus involved in the hypothalamic-pituitary-adrenal axis system, together with a motor planning region (dorsal anterior cingulate cortex/pre-supplementary motor area) and right dorsolateral prefrontal cortex (DLPFC). Eight occlusal splint-wearing men (OCS) with possible tooth-grinding and clenching behaviours and nine male controls (CON) with no such behaviour were studied. RESULTS Repeated-measures ANOVA showed significant Group×Region interaction for GABA+ (p = 0.001) and glutamate (Glu) (p = 0.031). Between-group post hoc ANOVA showed significantly lower levels of GABA+ (p = 0.003) and higher levels of Glu (p = 0.002) in DLPFC of OCS subjects. These GABA+ and Glu group differences remained significant (GABA+, p = 0.049; Glu, p = 0.039) after the inclusion of anxiety as a covariate. Additionally, GABA and Glu levels in the DLPFC of all subjects were negatively related (Pearson's r = -0.75, p = 0.003). CONCLUSIONS These findings indicate that the oral behaviours of tooth-grinding and clenching, generally known as bruxism, may be associated with disturbances in brain GABAergic and glutamatergic systems.
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Botti Rodrigues Santos MT, Duarte Ferreira MC, de Oliveira Guaré R, Guimarães AS, Lira Ortega A. Teeth grinding, oral motor performance and maximal bite force in cerebral palsy children. SPECIAL CARE IN DENTISTRY 2015; 35:170-4. [PMID: 25676552 DOI: 10.1111/scd.12106] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIM Identify whether the degree of oral motor performance is related to the presence of teeth grinding and maximal bite force values in children with spastic cerebral palsy. METHODS Ninety-five spastic cerebral palsy children with and without teeth grinding, according to caregivers' reports, were submitted to a comprehensive oral motor performance evaluation during the feeding process using the Oral Motor Assessment Scale. Maximal bite force was measured using an electronic gnathodynamometer. RESULTS The teeth grinding group (n = 42) was younger, used anticonvulsant drugs, and was more frequently classified within the subfunctional oral motor performance category. Teeth grinding subfunctional spastic cerebral palsy children presented lower values of maximal bite force. The functional groups showing the presence or absence of teeth grinding presented higher values of maximal bite force compared with the subfunctional groups. CONCLUSION In spastic cerebral palsy children, teeth grinding is associated with the worse oral motor performance.
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Affiliation(s)
| | | | - Renata de Oliveira Guaré
- School of Dentistry, Persons with Disability Division, Universidade Cruzeiro do Sul-UNICSUL, São Paulo, Brazil
| | | | - Adriana Lira Ortega
- School of Dentistry, Persons with Disability Division, Universidade Cruzeiro do Sul-UNICSUL, São Paulo, Brazil
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Feu D, Catharino F, Quintão CCA, Almeida MADO. A systematic review of etiological and risk factors associated with bruxism. J Orthod 2014; 40:163-71. [DOI: 10.1179/1465313312y.0000000021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Valiente López M, van Selms MKA, van der Zaag J, Hamburger HL, Lobbezoo F. Do sleep hygiene measures and progressive muscle relaxation influence sleep bruxism? Report of a randomised controlled trial. J Oral Rehabil 2014; 42:259-65. [DOI: 10.1111/joor.12252] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2014] [Indexed: 12/01/2022]
Affiliation(s)
- M. Valiente López
- Department of Oral Kinesiology; Academic Centre for Dentistry Amsterdam (ACTA); MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
| | - M. K. A. van Selms
- Department of Oral Kinesiology; Academic Centre for Dentistry Amsterdam (ACTA); MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
| | - J. van der Zaag
- Department of Oral Kinesiology; Academic Centre for Dentistry Amsterdam (ACTA); MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
| | - H. L. Hamburger
- Amsterdam Center for Sleep and Wake Disorders and Department of Clinical Neurophysiology; Slotervaart Medical Center; Amsterdam The Netherlands
| | - F. Lobbezoo
- Department of Oral Kinesiology; Academic Centre for Dentistry Amsterdam (ACTA); MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
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Affiliation(s)
- Hyeyun Kim
- Department of Neurology; International St. Mary Hospital; Catholic Kwandong University; Incheon Republic of Korea
| | - Hyun Jeong Han
- Department of Neurology; Myongji Hospital; Goyang Republic of Korea
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Abstract
BACKGROUND Sleep bruxism is an oral activity characterized by involuntary teeth grinding or clenching during sleep. Several forms of treatment have been proposed for this disorder, including behavioural, dental and pharmacological strategies. OBJECTIVES To evaluate the effectiveness and safety of pharmacological therapy for the treatment of sleep bruxism compared with other drugs, no treatment or placebo. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (Issue 8, 2014), MEDLINE (1966 to August 2014), EMBASE (1980 to August 2013) and LILACS (1982 to August 2014). We identified additional reports from the reference lists of retrieved reports and from reviews on treatment of sleep bruxism. We applied no language restrictions. SELECTION CRITERIA We selected randomized controlled trials (RCTs) or quasi-RCTs that compared drugs with other drugs, no treatment or placebo in people with sleep bruxism. DATA COLLECTION AND ANALYSIS Review authors carried out data extraction and quality assessment of the included trials independently and in duplicate. We discussed discrepancies until we reached consensus. We consulted a third review author in cases of persistent disagreement. We contacted authors of primary studies when necessary. MAIN RESULTS We identified 18 potentially relevant RCTs, but only seven met the inclusion criteria. All studies had a small number of participants, ranging from seven to 16 people per study and had a cross-over design. Three studies were of low risk of bias, while four were of uncertain risk. Amitriptyline (three studies), bromocriptine (one study), clonidine (one study), propranolol (one study), levodopa (Prolopa®) (one study) and tryptophan (one study) were compared with placebo. Studies evaluating bromocriptine, clonidine, propranolol and levodopa reported our primary outcome of indices of bruxism motor activity.Results were imprecise and consistent with benefit, no difference or harm. These were the specific findings for each of the drugs according to specific outcomes: 1. Amitriptyline versus placebo for masseteric electromyography (EMG) activity per minute: standardized mean difference (SMD) -0.28 (95% confidence interval (CI) -0.91 to 0.34; P value = 0.37), 2. bromocriptine versus placebo for bruxism episodes per hour: mean difference (MD) 0.60 (95% CI -2.93 to 4.13), bruxism bursts per hour: MD -2.00 (95% CI -53.47 to 49.47), bruxism bursts per episode: MD 0.50 (95% CI -1.85 to 2.85) or number of episodes with grinding noise: MD 2.40 (95% CI -24.00 to 28.80), 3. clonidine versus placebo for number of bruxism episodes per hour: MD -2.41 (95% CI -4.84 to 0.02), 4. propranolol versus placebo for the number of bruxism episodes per hour: MD 1.16 (95% CI -1.89 to 4.21), 5. L-tryptophan versus placebo for masseteric EMG activity per second: SMD 0.08 (95% CI -0.90 to 1.06) and 6. levodopa versus placebo for bruxism episodes per hour of sleep: MD -1.47 (95% CI -3.64 to 0.70), for bruxism bursts per episode: MD 0.06 (95% CI -2.47 to 2.59).We combined several secondary outcomes (sleep duration, masseteric EMG activity per minute and pain intensity) in a meta-analysis for comparison of amitriptyline with placebo. The results for most comparisons were uncertain because of statistical imprecision. One study reported that clonidine reduced rapid eye movement (REM) sleep stage and increased the second stage of sleep. However, results for other sleep-related outcomes with clonidine were uncertain. Adverse effects were frequent in people who took amitriptyline (5/10 had drowsiness, difficulty awakening in the morning, insomnia or xerostomia compared with 0/10 in the placebo group), as well as in people who received propranolol (7/16 had moderate-to-severe xerostomia compare with 2/16 in the placebo group). Clonidine was associated with prolonged morning hypotension in three of 16 participants. The use of preventive medication avoided any adverse effects in people treated with levodopa and bromocriptine. AUTHORS' CONCLUSIONS There was insufficient evidence on the effectiveness of pharmacotherapy for the treatment of sleep bruxism. This systematic review points to the need for more, well-designed, RCTs with larger sample sizes and adequate methods of allocation, outcome assessment and duration of follow-up. Ideally, parallel RCTs should be used in future studies to avoid the bias associated with cross-over studies. There is a need to standardize the outcomes of RCTs on treatments for sleep bruxism.
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Affiliation(s)
- Cristiane R Macedo
- Centro de Estudos de Saúde Baseada em Evidências e Avaliação Tecnológica em SaúdeBrazilian Cochrane CentreRua Borges Lagoa, 564 cj 63São PauloSPBrazilCEP 04038‐000
| | - Elizeu C Macedo
- Mackenzie Presbyterian UniversityCognitive Neuroscience Laboratory and Developmental Disorders ProgramSão PauloBrazil
| | - Maria R Torloni
- Centro de Estudos de Saúde Baseada em Evidências e Avaliação Tecnológica em SaúdeBrazilian Cochrane CentreRua Borges Lagoa, 564 cj 63São PauloSPBrazilCEP 04038‐000
| | - Ademir B Silva
- Universidade Federal de São PauloNeurology, Neurosurgery and NeuroscienceRua Pedro de Toledo980 conj. 82São PauloSão PauloBrazil04039‐002
| | - Gilmar F Prado
- Escola Paulista de Medicina, Universidade Federal de São PauloDepartment of NeurologySão PauloSão PauloBrazil
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Falisi G, Rastelli C, Panti F, Maglione H, Quezada Arcega R. Psychotropic drugs and bruxism. Expert Opin Drug Saf 2014; 13:1319-26. [PMID: 25195948 DOI: 10.1517/14740338.2014.947262] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Sleep and awake bruxism is defined as 'a parafunctional activity including clenching, bracing, gnashing, and grinding of the teeth'. Some evidence suggests that bruxism may be caused by, or associated with, alterations in the CNS neurotransmission. Several classes of psychotropic drugs interfering with CNS activity may potentially contribute to bruxism. Thus, the purpose of this study was to examine relevant peer-reviewed papers to identify and describe the various classes of psychotropic substances that may cause, exacerbate or reduce bruxism as the result of their pharmacological action in CNS neurons. AREAS COVERED A literature search from 1980 to the present was performed using PubMed database. The term 'bruxism' was used in association with 'psychotropic', 'dopamine (DA)', 'serotonin', 'histamine', 'antipsychotics', 'antidepressants', 'antihistaminergics' and 'stimulants'. EXPERT OPINION Studies on the effects of DA agonists (Levo-DOPA, psychostimulants) and antagonists (antipsychotics) identified a central role of DA in the pathogenesis of pharmacologically induced bruxism. Important information from studies on drugs acting on serotonin neurotransmission (antidepressants) was recognized. Other mechanisms involving different neurotransmitters are emerging. This is the case of antihistaminergic drugs which may induce bruxism as a consequence of their disinhibitory effect on the serotonergic system.
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Affiliation(s)
- Giovanni Falisi
- University of L'Aquila, School of Dentistry, Department of Life, Health, and Environmental Sciences , Piazzale Salvatore Tommasi 1, 67100 Coppito (AQ), L'Aquila , Italy +39 0862433202 ; +39 08624332 ;
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Gabriela Cortese S, Elizabeth Fridman D, Liliana Farah C, Bielsa F, Grinberg J, María Biondi A. Frequency of Oral Habits, Dysfunctions, and Personality Traits in Bruxing and Nonbruxing Children: A Comparative Study. Cranio 2014; 31:283-90. [DOI: 10.1179/crn.2013.31.4.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Huang H, Song YH, Wang JJ, Guo Q, Liu WC. Excitability of the central masticatory pathways in patients with sleep bruxism. Neurosci Lett 2014; 558:82-6. [DOI: 10.1016/j.neulet.2013.11.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 08/06/2013] [Accepted: 11/08/2013] [Indexed: 01/28/2023]
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Giannasi LC, Santos IR, Alfaya TA, Bussadori SK, Franco de Oliveira LV. Effect of an occlusal splint on sleep bruxism in children in a pilot study with a short-term follow up. J Bodyw Mov Ther 2013; 17:418-22. [PMID: 24138997 DOI: 10.1016/j.jbmt.2013.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 12/22/2012] [Accepted: 12/28/2012] [Indexed: 11/15/2022]
Abstract
The aim of the present study was to evaluate the effect of the use of an occlusal splint in children with bruxism in a pilot study with a short-term follow up. Seventeen children were recruited, only nine of whom formed the sample following the application of the inclusion criteria: presence of sleep bruxism for at least six months (based on parents' reports); presence of at least the first permanent molars; and no previous history of treatment involving an occlusal splint. The sample was submitted to a clinical exam. Other sleep problems were screened with the use of a sleep questionnaire filled out by parents before and after 90 days of occlusal splint usage. The children received a flat acrylic resin splint with full coverage of the occlusal surfaces to be worn in the maxilla. In children with erupting teeth, a space was created in the splint to allow normal eruption. After the 90-day period, the absence of sleep bruxism and sleep movements was noted in most of children. Moreover, snoring was reduced in nearly 50%, which raises a new issue to be investigated with regard to the pathophysiology of sleep bruxism. The use of an occlusal splint was effective in reducing the symptoms of sleep bruxism and other sleep problems. Further investigations should be carried out on the relationship between snoring and sleep bruxism in children.
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Affiliation(s)
- Lilian Chrystiane Giannasi
- Bioscience Department, State of Sao Paulo University - UNESP, R. Esperança, 265, ap 31, São José dos Campos, São Paulo, SP 12243-700, Brazil; Sleep Disorder Laboratory, University of Nove de Julho - UNINOVE, São Paulo, SP, Brazil.
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van Selms MK, Visscher CM, Naeije M, Lobbezoo F. Bruxism and associated factors among Dutch adolescents. Community Dent Oral Epidemiol 2012; 41:353-63. [DOI: 10.1111/cdoe.12017] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 09/23/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Maurits K.A. van Selms
- Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam; The Netherlands
| | - Corine M. Visscher
- Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam; The Netherlands
| | - Machiel Naeije
- Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam; The Netherlands
| | - Frank Lobbezoo
- Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam; The Netherlands
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LOBBEZOO F, AHLBERG J, MANFREDINI D, WINOCUR E. Are bruxism and the bite causally related? J Oral Rehabil 2012; 39:489-501. [DOI: 10.1111/j.1365-2842.2012.02298.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Carra MC, Huynh N, Lavigne G. Sleep bruxism: a comprehensive overview for the dental clinician interested in sleep medicine. Dent Clin North Am 2012; 56:387-413. [PMID: 22480810 DOI: 10.1016/j.cden.2012.01.003] [Citation(s) in RCA: 149] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Sleep bruxism (SB) is a common sleep-related motor disorder characterized by tooth grinding and clenching. SB diagnosis is made on history of tooth grinding and confirmed by polysomnographic recording of electromyographic (EMG) episodes in the masseter and temporalis muscles. The typical EMG activity pattern in patients with SB is known as rhythmic masticatory muscle activity (RMMA). The authors observed that most RMMA episodes occur in association with sleep arousal and are preceded by physiologic activation of the central nervous and sympathetic cardiac systems. This article provides a comprehensive review of the cause, pathophysiology, assessment, and management of SB.
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Affiliation(s)
- Maria Clotilde Carra
- Faculty of Dental Medicine, Univeristé de Montréal, CP 6128 Succursale Centre-Ville, Montreal, Quebec, H3C 3J7, Canada.
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Giannasi LC, Hirata RP, Politti F, Nacif SR, Leitão Filho FSS, Oliveira LVFD. A novel protocol for occlusal splint adjustment to treat TMD in sleep bruxism. FISIOTERAPIA EM MOVIMENTO 2012. [DOI: 10.1590/s0103-51502012000100017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION: Sleep bruxism (SB) is a stereotypical movement disorder that is characterized by rhythmic masticatory muscle activity associated with tooth grinding and occasional jaw clenching. OBJECTIVES: The aim of this study was to determine the relief time for temporomandibular disorders (TMD), cervical and otological signs and symptoms in patients with BS treated with occlusal splints (OS) for a period of 180 days. MATERIALS AND METHODS: Thirty patients, between ages 22 and 53 years old, presenting SB and TMD, including cervical and otological symptoms, were enrolled in this study. The patient’s treatment protocol consisted of using the OS applying a novel adjustment protocol. The total follow-up period was 180 days. The paired Student t-test was used to compare before and after long-term OS treatment. RESULTS: For all variables, the results were statistically significant (p < 0.001). As to the TMD symptoms, in most patients the relief of pain in masseter, temporalis, cervical and TMDs occurred in the 3rd month. Twenty percent of the patients were aware of clenching teeth while awake and reported that this parafunction decreased by the end of 6 months, and 90% reported an improvement in sleep quality as well. CONCLUSION: The use of an OS with a novel adjustment protocol was an effective treatment for TMD sign and symptoms in patients with SB.
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PONTONS-MELO JUANCARLOS, PIZZATTO EDUARDO, FURUSE ADILSONYOSHIO, MONDELLI JOSÉ. A Conservative Approach for Restoring Anterior Guidance: A Case Report. J ESTHET RESTOR DENT 2011; 24:171-82. [DOI: 10.1111/j.1708-8240.2011.00483.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Motor control of jaw movements: An fMRI study of parafunctional clench and grind behavior. Brain Res 2011; 1383:206-17. [DOI: 10.1016/j.brainres.2011.01.096] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2010] [Revised: 01/14/2011] [Accepted: 01/26/2011] [Indexed: 01/30/2023]
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Shetty S, Pitti V, Satish Babu CL, Surendra Kumar GP, Deepthi BC. Bruxism: a literature review. J Indian Prosthodont Soc 2010; 10:141-8. [PMID: 21886404 PMCID: PMC3081266 DOI: 10.1007/s13191-011-0041-5] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Accepted: 01/04/2011] [Indexed: 10/18/2022] Open
Abstract
Bruxism is a movement disorder characterized by grinding and clenching of teeth. Awake bruxism is found more in females as compared to males while sleep bruxism shows no such gender prevalence. Etiology of bruxism can be divided into three groups psychosocial factors, peripheral factors and pathophysiological factors. Treatment modalities involve occlusal correction, behavioural changes and pharmacological approach. A literature search was performed using National Library of Medicine's (NLM) Medical Subject Headings (MeSH) Database, Pubmed and Google search engines. The search term 'Bruxism' yielded 2,358 papers out of which 230 were review papers. Most of the papers selected were recently published during the period of 1996-2010 and very few of them were published before 1996.
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Affiliation(s)
| | - Varun Pitti
- Department of Prosthodontics, V.S. Dental College and Hospital, K.R. Road, V.V. Puram, Bangalore, 560004 India
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Quintero Y, Restrepo CC, Tamayo V, Tamayo M, Vélez AL, Gallego G, Peláez-Vargas A. Effect of awareness through movement on the head posture of bruxist children. J Oral Rehabil 2010; 36:18-25. [PMID: 19207368 DOI: 10.1111/j.1365-2842.2008.01906.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The aim of this study was to evaluate the effectiveness of physiotherapy to improve the head posture and reduce the signs of bruxism in a group of bruxist children. A single-blind randomized clinical trial was performed. All the subjects were 3- to 6-year old, had complete primary dentition, dental and skeletal class I occlusion and were classified as bruxist according to the minimal criteria of the ICSD for bruxism. For each child, a clinical, photographic and radiographic evaluation of the head and cervical posture were realized with standardized techniques. The children were randomized in an experimental (n = 13) and a control (n = 13) group. A physiotherapeutic intervention was applied to the children of the experimental group once a week, until 10 sessions were completed. Afterwards, the cephalogram and the clinical and photographic evaluation of the head posture were measured again. The data were analysed with the t-test and Mann-Whitney test. The subjects of the experimental group showed statistically significant improvement in the natural head posture. The physiotherapeutic intervention showed to be efficient to improve the head posture at the moment of measurement in the studied children. The relationship between bruxism and head posture, if exists, seems to be worthwhile to examine.
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Affiliation(s)
- Y Quintero
- CES-LPH Research Group, CES University, Medellín, Colombia
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STRAUSZ T, AHLBERG J, LOBBEZOO F, RESTREPO CC, HUBLIN C, AHLBERG K, KÖNÖNEN M. Awareness of tooth grinding and clenching from adolescence to young adulthood: a nine-year follow-up. J Oral Rehabil 2010; 37:497-500. [DOI: 10.1111/j.1365-2842.2010.02071.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lavigne GJ, Khoury S, Abe S, Yamaguchi T, Raphael K. Bruxism physiology and pathology: an overview for clinicians. J Oral Rehabil 2009; 35:476-94. [PMID: 18557915 DOI: 10.1111/j.1365-2842.2008.01881.x] [Citation(s) in RCA: 412] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Awake bruxism is defined as the awareness of jaw clenching. Its prevalence is reported to be 20% among the adult population. Awake bruxism is mainly associated with nervous tic and reactions to stress. The physiology and pathology of awake bruxism is unknown, although stress and anxiety are considered to be risk factors. During sleep, awareness of tooth grinding (as noted by sleep partner or family members) is reported by 8% of the population. Sleep bruxism is a behaviour that was recently classified as a 'sleep-related movement disorder'. There is limited evidence to support the role of occlusal factors in the aetiology of sleep bruxism. Recent publications suggest that sleep bruxism is secondary to sleep-related micro-arousals (defined by a rise in autonomic cardiac and respiratory activity that tends to be repeated 8-14 times per hour of sleep). The putative roles of hereditary (genetic) factors and of upper airway resistance in the genesis of rhythmic masticatory muscle activity and of sleep bruxism are under investigation. Moreover, rhythmic masticatory muscle activity in sleep bruxism peaks in the minutes before rapid eye movement sleep, which suggests that some mechanism related to sleep stage transitions exerts an influence on the motor neurons that facilitate the onset of sleep bruxism. Finally, it remains to be clarified when bruxism, as a behaviour found in an otherwise healthy population, becomes a disorder, i.e. associated with consequences (e.g. tooth damage, pain and social/marital conflict) requires intervention by a clinician.
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Affiliation(s)
- G J Lavigne
- Faculty of Dentistry, Surgery Department, Pain, Sleep and Trauma Unit, Université de Montréal, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada.
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RESTREPO CC, VSQUEZ LM, ALVAREZ M, VALENCIA I. Personality traits and temporomandibular disorders in a group of children with bruxing behaviour. J Oral Rehabil 2008; 35:585-93. [DOI: 10.1111/j.1365-2842.2007.01838.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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RESTREPO CC, SFORZA C, COLOMBO A, PELÁEZ-VARGAS A, FERRARIO VF. Palate morphology of bruxist children with mixed dentition. A pilot study. J Oral Rehabil 2008; 35:353-60. [DOI: 10.1111/j.1365-2842.2008.01848.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vélez AL, Restrepo CC, Peláez-Vargas A, Gallego GJ, Alvarez E, Tamayo V, Tamayo M. Head posture and dental wear evaluation of bruxist children with primary teeth. J Oral Rehabil 2008; 34:663-70. [PMID: 17716265 DOI: 10.1111/j.1365-2842.2007.01742.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
UNLABELLED The aim of the present study was to compare the head position and dental wear of bruxist and non-bruxist children with primary dentition. METHODS All the subjects had complete primary dentition, dental and skeletal class I occlusion and were classified as bruxist or non-bruxist according to their anxiety level, bruxism described by their parents and signs of temporomandibular disorders. The dental wear was drawn in dental casts and processed in digital format. Physiotherapeutic evaluation and a cephalometric radiograph with natural head position were also performed for each child to evaluate the cranio-cervical position for the bruxist group (n = 33) and the control group (n = 20). The variables of the two groups were compared, using the Student t-test and Mann-Whitney U-test. RESULTS A more anterior and downward head tilt was found in the bruxist group, with statistically significant differences compared with the controls. More significant dental wear was observed in the bruxist children. CONCLUSIONS Bruxism seems to be related to altered natural head posture and more intense dental wear. Further studies are necessary to explore bruxism mechanisms.
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Ghanizadeh A. ADHD, bruxism and psychiatric disorders: does bruxism increase the chance of a comorbid psychiatric disorder in children with ADHD and their parents? Sleep Breath 2008; 12:375-80. [PMID: 18421490 DOI: 10.1007/s11325-008-0183-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Accepted: 02/25/2008] [Indexed: 11/26/2022]
Abstract
There is an association between bruxism and ADHD. No published data on psychiatric comorbidities in attention-deficit/hyperactivity disorder (ADHD) children with bruxism were found. There is no satisfying treatment method for children with bruxism. If we understand its comorbidities well, a better treatment method could come out. This study was conducted to compare the frequency of comorbid psychiatric disorders in the parents and their ADHD children with and without teeth grinding. It was hypothesized that there is no association between bruxism and prevalence of comorbid psychiatric disorders in children with ADHD and their parental psychopathology. Eighty-nine ADHD children without teeth grinding were compared with 32 ADHD children with teeth grinding. Their parental psychiatric disorders were also compared. Structured interviews were used to diagnose comorbid psychiatric disorders. The demographic characteristics of the children and their parents were not different between the groups. The only psychiatric disorder in children, which was associated with the groups was oppositional defiant disorder. The rate of conduct disorder, tic disorder, major depressive disorder, separation anxiety disorder, generalized anxiety disorder, enuresis, and obsessive compulsive disorder were not different between the two groups of children. The rate of major depression was more in the mothers of children with teeth grinding than those without such children. These finding were not reported before. ADHD children with teeth grinding have a high prevalence of oppositional defiant disorder. Lack of association between anxiety disorder and presence of teeth grinding might not support the idea that anxiety is associated with teeth grinding. The association of ODD and teeth girding might be a clue about etiology of bruxism. Perhaps, this clue can probably lead to the development of a more satisfying treatment. With consideration of this clue, further studies should survey if there is any association between ODD and sleep micro-arousals.
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Affiliation(s)
- Ahmad Ghanizadeh
- Child and Adolescent Psychiatry, Shiraz University of Medical Sciences, Hafez Hospital, Shiraz, Iran.
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Dang-Vu TT, Desseilles M, Petit D, Mazza S, Montplaisir J, Maquet P. Neuroimaging in sleep medicine. Sleep Med 2007; 8:349-72. [PMID: 17470413 DOI: 10.1016/j.sleep.2007.03.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2007] [Accepted: 03/07/2007] [Indexed: 10/23/2022]
Abstract
The development of neuroimaging techniques has made possible the characterization of cerebral function throughout the sleep-wake cycle in normal human subjects. Indeed, human brain activity during sleep is segregated within specific cortical and subcortical areas in relation to the sleep stage, sleep physiological events and previous waking activity. This approach has allowed sleep physiological theories developed from animal data to be confirmed, but has also introduced original concepts about the neurobiological mechanisms of sleep, dreams and memory in humans. In contrast, at present, few neuroimaging studies have been dedicated to human sleep disorders. The available work has brought interesting data that describe some aspects of the pathophysiology and neural consequences of disorders such as insomnia, sleep apnea and narcolepsy. However, the interpretation of many of these results is restricted by limited sample size and spatial/temporal resolution of the employed technique. The use of neuroimaging in sleep medicine is actually restrained by concerns resulting from the technical experimental settings and the characteristics of the diseases. Nevertheless, we predict that future studies, conducted with state of the art techniques on larger numbers of patients, will be able to address these issues and contribute significantly to the understanding of the neural basis of sleep pathologies. This may finally offer the opportunity to use neuroimaging, in addition to the clinical and electrophysiological assessments, as a helpful tool in the diagnosis, classification, treatment and monitoring of sleep disorders in humans.
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Affiliation(s)
- Thien Thanh Dang-Vu
- Cyclotron Research Centre B30, University of Liege - Sart Tilman, 4000 Liege, Belgium.
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Van der Zaag J, Lobbezoo F, Van der Avoort PGGL, Wicks DJ, Hamburger HL, Naeije M. Effects of pergolide on severe sleep bruxism in a patient experiencing oral implant failure. J Oral Rehabil 2007; 34:317-22. [PMID: 17441871 DOI: 10.1111/j.1365-2842.2006.01651.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
In the patient described in this study, oral implants failed as a probable consequence of severe, polysomnographically confirmed sleep bruxism. As this patient had the wish to be re-implanted after this failure, we decided to try diminishing the frequency of bruxism and duration first. To that end, two management strategies were used. Their efficacy was evaluated polysomnographically, yielding a total of six overnight recordings. Of the selected management strategies, the administration of low doses of the dopamine D1/D2 receptor agonist pergolide finally resulted in a substantial and lasting reduction in the bruxism outcome measures under study. This result supports the previous suggestion that central neurochemicals like dopamine may be involved in the modulation of sleep bruxism. The case report also illustrates the importance of an extensive history taking (questionnaires as well as oral) and clinical examination of oral implant patients for the presence of severe bruxism before the implant procedure is started. In case of doubt, polysomnography may be considered to definitively confirm or rule out the presence of severe sleep bruxism.
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Affiliation(s)
- J Van der Zaag
- Section of Oral Kinesiology, Department of Oral Function, Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
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Chen WH, Lu YC, Lui CC, Liu JS. A proposed mechanism for diurnal/nocturnal bruxism: hypersensitivity of presynaptic dopamine receptors in the frontal lobe. J Clin Neurosci 2006; 12:161-3. [PMID: 15749418 DOI: 10.1016/j.jocn.2004.07.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2003] [Accepted: 07/27/2004] [Indexed: 12/26/2022]
Abstract
There are many reports in the literature concerning nocturnal bruxism, however, diurnal (non-sleep)/nocturnal bruxism is rarely mentioned. We report three patients with diurnal/nocturnal bruxism. They differed from the usual features of nocturnal bruxism in hypoperfusion of the left frontal lobe, a poor response to l-dopa or bromocriptine therapy and a favourable response to metoclopramide. Hypersensitive presynaptic dopamine receptors may be the underlying pathology responsible for this type of bruxism. Regional differences in dopamine receptor pharmacology may explain the perplexing relationship of bruxism to both hyper- and hypo-dopaminergic states.
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Affiliation(s)
- Wei-Hsi Chen
- Department of Neurology, Chang Gung Memorial Hospital, Niao Sung Kaohsiung, Taiwan
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Manfredini D, Ciapparelli A, Dell'Osso L, Bosco M. Mood disorders in subjects with bruxing behavior. J Dent 2005; 33:485-90. [PMID: 15935268 DOI: 10.1016/j.jdent.2004.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2004] [Revised: 11/15/2004] [Accepted: 11/18/2004] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE An investigation was conducted on 105 subjects to assess the existence of an association between mood psychopathology and bruxism. METHODS Validated clinical criteria were used to diagnose bruxism and a self-report validated questionnaire (MOODS-SR) was filled out by each patient for an evaluation of depression and mania symptoms of mood spectrum. RESULTS Prevalence of mood psychopathology, as identified by MOODS-SR score> or =60, was significantly higher in bruxers (11/38, 28.9% vs. 6/67, 8.9%; P=0.007). Significant differences between bruxers and non-bruxers also emerged in total MOODS-SR (P=0.001) scores and in total scores of domains evaluating manic (P=0.001) and depressive symptoms (P=0.007). CONCLUSIONS Support to the existence of an association between bruxism and mood disorders has been provided. Further studies are strongly needed to clarify mechanisms underlying the described association.
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Affiliation(s)
- Daniele Manfredini
- Section of Prosthetic Dentistry, Department of Neuroscience, University of Pisa, Italy.
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Castelo PM, Gavião MBD, Pereira LJ, Bonjardim LR. Relationship between oral parafunctional/nutritive sucking habits and temporomandibular joint dysfunction in primary dentition. Int J Paediatr Dent 2005; 15:29-36. [PMID: 15663442 DOI: 10.1111/j.1365-263x.2005.00608.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
UNLABELLED The aim of this study was to evaluate the relationship between nutritive and parafunctional habits and the presence of temporomandibular dysfunction (TMD) in children with primary dentition. METHODS Ninety nine children, aged 3-5 years, were examined to check for the presence or absence of signs and symptoms of TMD (headache, preauricular pain, earache, masticatory muscle tenderness, deviation on opening, occlusal interference and asymmetric movement of the mandible), oral parafunctions (bruxism, nail biting, finger/thumb sucking, speech alteration, mouth breathing, pacifier and atypical swallowing) and nutritive habits (breast- or bottle-feeding) through interview and clinical examination. The results were submitted to descriptive statistical analysis and Fisher's exact test. RESULTS The results showed that only atypical swallowing was positively related to TMD (P < 0.0001); other oral parafunctional and nutritive habits were not related to TMD. CONCLUSIONS It was concluded that parafunctional habits, with the exception of atypical swallowing, and feeding methods were not determinants for the presence of signs and/or symptoms of TMD in the sample of children included in the study.
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Affiliation(s)
- P M Castelo
- Department of Pediatric Dentistry, Dental School of Piracicaba, State University of Campinas, Piracicaba, Brazil
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Tan EK, Chan LL, Chang HM. Severe bruxism following basal ganglia infarcts: insights into pathophysiology. J Neurol Sci 2004; 217:229-32. [PMID: 14706229 DOI: 10.1016/j.jns.2003.10.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Bruxism characterized by clenching and grinding of teeth can lead to toothwear, headaches and depression. While bruxism has been associated with a number of neurological diseases, it has not been highlighted following cerebral infarction. An elderly man presented with an acute onset of tooth grinding and jaw clenching associated with dysarthria. His bruxism was worse during the day and resolved during sleep. He had frequent jaw aches, headaches and swallowing difficulty. Examination demonstrated the presence of dysarthria with jaw clenching and tooth grinding, producing persistent high pitch and loud squeaky sounds. A magnetic resonance imaging and angiography examination revealed a recent infarct in the right thalamus. In addition, chronic lacunar infarcts were present in the bilateral caudate nuclei with severe basilar artery stenosis. He was successfully treated with botulinum toxin. We discuss the pathophysiologic mechanisms of bruxism associated with basal ganglia infarcts. Dysfunction of the efferent and/or afferent thalamic or striatopallidal tracts may play a role in bruxism. Early recognition of bruxism following stroke could reduce unnecessary suffering since the condition can be effectively treated.
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Affiliation(s)
- Eng-King Tan
- Department of Neurology, Singapore General Hospital, Outram Road, 169608, Singapore, Singapore.
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Abstract
We describe a 51-year-old man who developed awake bruxism during the course of multiple system atrophy. Electromyographic studies revealed side-to-side amplitude asymmetry of the bursts of motor activity. The bruxism responded favourably to low-dose levodopa-carbidopa therapy. Possible mechanisms of this rare association are discussed.
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Affiliation(s)
- Gurusidheshwar M Wali
- Jawaharlal Nehru Medical College, and Karnatak Lingayat Education Society's Hospital and Medical Research Centre, Belgaum, Karnataka State, India.
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Affiliation(s)
- Antoon De Laat
- Cluster Oral Physiology, Dept. Oral and Maxillo-Facial Surgery, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Leuven, Belgium.
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Coyne BMC, Montague T. Teeth grinding, tongue and lip biting in a 24-month-old boy with meningococcal septicaemia. Report of a case. Int J Paediatr Dent 2002; 12:277-80. [PMID: 12121539 DOI: 10.1046/j.1365-263x.2002.00371.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This paper describes the management of a 24-month-old boy who presented with self-inflicted trauma to his lower lip and tongue, and teeth grinding, 21 days after developing meningococcal septicaemia. A decision to observe and prescribe palliative therapy was made. Extraction of the lower right deciduous canine, which had become non-vital, possibly due to bruxism, was carried out.
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Affiliation(s)
- B M C Coyne
- Royal Manchester Children's Hospital, Pendlebury, UK
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Duchesne N, Soucy JP, Masson H, Chouinard S, Bédard MA. Cognitive deficits and striatal dopaminergic denervation in Parkinson's disease: a single photon emission computed tomography study using 123iodine-beta-CIT in patients on and off levodopa. Clin Neuropharmacol 2002; 25:216-24. [PMID: 12151909 DOI: 10.1097/00002826-200207000-00005] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cognitive deficits affecting executive (frontal) functions have been widely described in Parkinson's disease (PD). However, dopa therapies are generally ineffective at reversing these deficits, except for tasks involving a sharing of attention such as working memory or simultaneous processing tasks. The aim of this study was to assess the relation between the nigrostriatal dopaminergic denervation in PD, as measured by SPECT with (123)Iodine-beta-CIT and the cognitive deficits, as measured by a simultaneous processing task, which had already been shown to be sensitive to dopa treatment. Ten patients with PD and ten control subjects were selected and matched for age, sex, and education. All subjects were assessed using computed visuo-auditory tasks which allow for the measurement of three cognitive processing conditions: 1) a Selective Processing Time; 2) a Competitive Processing Time; and 3) a Simultaneous Processing Time. Patients with PD were assessed both with (ON) and without (OFF) their usual dopaminergic treatment. The simultaneous processing condition but not the selective or the competitive conditions took significantly more time for patients with PD OFF than for either the control subjects or the patients with PD ON. In addition, when patients with PD were OFF, the simultaneous processing condition was correlated with the (123)Iodine-beta-CIT binding, but not when they were ON. These results suggest that nigrostriatal DA denervation may be involved in the specific impairment that patients with PD experience with simultaneous cognitive processing.
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Affiliation(s)
- Nicole Duchesne
- The André Barbeau Movement Disorders Unit, Center Hospitalier de l'Université de Montréal, Montréal, Québec, Cananda
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