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Mansuy C, Silvestri F, Mozziconacci L, Esclassan R, Hüe O, Ruquet M, Mense C. Quantitative evaluation of trabecular bone density and bone height in different regions of edentulous maxillae according to age and sex. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2025; 126:102306. [PMID: 40043804 DOI: 10.1016/j.jormas.2025.102306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2025] [Accepted: 02/25/2025] [Indexed: 03/10/2025]
Abstract
INTRODUCTION In edentulous maxillae, bone quantity and quality are crucial factors for implant treatment planning and success. This study aimed to assess variations in trabecular bone density (TBD) and bone height in different regions of the edentulous maxilla, according to sex and age. MATERIALS AND METHODS 100 cone beam computed tomography (CBCT) from edentulous maxilla were analyzed. Six virtual implants were planned between the maxillary sinuses at incisor, canine, and premolar sites. Virtual implant lengths were selected according to available bone volume and used to estimate bone height. TBD was recorded in Hounsfield Units (HU) at the center of the apex of each virtual implant. The two-sample t-test compared the mean TBD and the mean virtual implant length between males and females. The Spearman correlation coefficient analyzed the correlation between mean TBD and age, and the correlation between mean TBD and mean virtual implant length. The significance level was set at 5 %. RESULTS In males, mean TBD and mean implant length were significantly higher than in females (P = 0.033 and P = 0.003). In females, there was a negative significant correlation between mean TBD and age (rho = -0.352, P = 0.022), and between mean TBD and mean implant length (rho = - 0.425, P = 0.005). DISCUSSION Variations in TBD and bone height within the edentulous maxilla are related to sex. Older edentulous women are more susceptible to present low TBD and low bone height in anterior maxilla, which may influence therapeutic choices to achieve implant success.
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Affiliation(s)
- Charlotte Mansuy
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France; Aix Marseille Univ, Faculté des Sciences Médicales et Paramédicales, École de Médecine Dentaire, Marseille, France; Assistance Publique des Hôpitaux de Marseille, Pôle PROMOD Odontologie, Service de Réhabilitations Orales et Chirurgicales, Marseille, France.
| | - Frédéric Silvestri
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France; Aix Marseille Univ, Faculté des Sciences Médicales et Paramédicales, École de Médecine Dentaire, Marseille, France; Assistance Publique des Hôpitaux de Marseille, Pôle PROMOD Odontologie, Service de Réhabilitations Orales et Chirurgicales, Marseille, France
| | - Léa Mozziconacci
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France; Aix Marseille Univ, Faculté des Sciences Médicales et Paramédicales, École de Médecine Dentaire, Marseille, France; Assistance Publique des Hôpitaux de Marseille, Pôle PROMOD Odontologie, Service de Réhabilitations Orales et Chirurgicales, Marseille, France
| | - Rémi Esclassan
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France; Aix Marseille Univ, Faculté des Sciences Médicales et Paramédicales, École de Médecine Dentaire, Marseille, France; Assistance Publique des Hôpitaux de Marseille, Pôle PROMOD Odontologie, Service de Réhabilitations Orales et Chirurgicales, Marseille, France
| | - Olivier Hüe
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France; Aix Marseille Univ, Faculté des Sciences Médicales et Paramédicales, École de Médecine Dentaire, Marseille, France
| | - Michel Ruquet
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France; Aix Marseille Univ, Faculté des Sciences Médicales et Paramédicales, École de Médecine Dentaire, Marseille, France; Assistance Publique des Hôpitaux de Marseille, Pôle PROMOD Odontologie, Service de Réhabilitations Orales et Chirurgicales, Marseille, France
| | - Chloé Mense
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France; Aix Marseille Univ, Faculté des Sciences Médicales et Paramédicales, École de Médecine Dentaire, Marseille, France; Assistance Publique des Hôpitaux de Marseille, Pôle PROMOD Odontologie, Service de Réhabilitations Orales et Chirurgicales, Marseille, France
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Kotan S, Koç A, Öner Talmaç AG. The current overview of the devices of temporary anchorage placed on the palatal bone: CBCT study. Odontology 2024; 112:1335-1342. [PMID: 38564121 DOI: 10.1007/s10266-024-00931-3] [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: 05/31/2023] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
Temporary anchorage devices (TADs) are frequently applied to different anatomic areas with different protocols to increase skeletal effects and anchorage in orthodontic treatment planning. It has been reported in many literatures that primary stability for orthodontic TADs is significant for long-term survival rate. For this reason, different areas of the palatal region, which has many indications, have been widely used in the studies. In this evaluation where bone quality and thickness are important, density, bone thickness, and fractal dimension (FD) on cone beam computed tomography (CBCT) will provide more predictable clinical results. The aim of this study was to evaluate bone thickness, density, and FD in the palatal region of the first, and second premolars, and first molars. There was a remarkable difference (p < 0.05) between the parameters of FD, thickness and density of bone in the identified areas in the palatal region. In terms of thickness and FD, the 1st premolar region had significantly higher values than the other regions (p < 0.05). In terms of density, the values in the right 1st molar and right 1st premolar regions were significantly higher (p < 0.05). The 1st premolar region is an ideal site for placement of palatal TADs. CBCT-assisted preliminary evaluation of FD value, bone density, and thickness may increase clinical success when selecting the location of TADs to be applied to the palatal bone.
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Affiliation(s)
- Seda Kotan
- Department of Orthodontics, Faculty of Dentistry, Iğdır University, Iğdır, 76000, Turkey.
| | - Alaettin Koç
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Van Yüzüncü Yıl University, Van, Turkey
| | - Ayşe Gül Öner Talmaç
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Van Yüzüncü Yıl University, Van, Turkey
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Dedeoğlu N, Eşer G, Çelik Özen D, Altun O. Five-year change of panoramic radiomorphometric indices and fractal dimension values in type 2 diabetes patients. Oral Radiol 2024; 40:49-57. [PMID: 37610653 DOI: 10.1007/s11282-023-00707-5] [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: 04/19/2023] [Accepted: 08/03/2023] [Indexed: 08/24/2023]
Abstract
OBJECTIVES Diabetes mellitus is a chronic disease characterized by dysregulation of glucose metabolism, with characteristic long-term complications accompanied by changes in bone quality. The purpose of this study is to compare the results with a control group by performing radiomorphometric analyses on panoramic radiographs obtained 5 years apart to examine changes in the mandibular bone cortex and microstructures of type 2 diabetes mellitus (T2DM) patients. METHODS Two panoramic radiographs that were taken 5 years (mean 5.26 ± 0.134) apart from 52 patients with T2DM (n:26) and a control group (n:26) were used. A total of 104 images were evaluated. Analyses were done from the condyle (FD1), angulus (FD2), distal second premolar apex (FD3), and anterior to the mental foramen (FD4) for fractal dimension (FD) in the mandible. Symphysis index (SI), anterior index (AI), molar index (MI), posterior index (PI), and panoramic mandibular index (PMI) measurements were taken for cortical analysis. Three-way ANOVA, three-way robust ANOVA, two-way ANOVA, and two-way robust ANOVA tests were used for statistical analysis (p < 0.05). RESULTS After a 5-year period, there was a significant decrease in all FD measures of the mandible in both T2DM and control groups (p < 0.05). This resulted in a statistical difference in the main effect of time. After a 5-year period, no significant difference in mandibular cortical measures was identified between the T2DM and control groups (p > 0.05). CONCLUSION According to panoramic radiography, the mandibular trabecular structure deteriorated after 5 years, whereas cortical values remained the same. It concluded that T2DM had no effect on these results.
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Affiliation(s)
- Numan Dedeoğlu
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inonu University, 44280, Malatya, Turkey.
| | - Gözde Eşer
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inonu University, 44280, Malatya, Turkey
| | - Duygu Çelik Özen
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inonu University, 44280, Malatya, Turkey
| | - Oğuzhan Altun
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inonu University, 44280, Malatya, Turkey
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Lintz F, Bernasconi A, Buedts K, Welck M, Ellis S, de Cesar Netto C. Ankle Joint Bone Density Distribution Correlates with Overall 3-Dimensional Foot and Ankle Alignment. J Bone Joint Surg Am 2023; 105:1801-1811. [PMID: 37616414 DOI: 10.2106/jbjs.23.00180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
BACKGROUND Altered stress distribution in the lower limb may impact bone mineral density (BMD) in the ankle bones. The purpose of the present study was to evaluate the spatial distribution of BMD with use of weight-bearing cone-beam computed tomography (WBCT). Our hypothesis was that BMD distribution would be even in normal hindfeet, increased medially in varus hindfeet, and increased laterally in valgus hindfeet. METHODS In this study, 27 normally aligned hindfeet were retrospectively compared with 27 valgus and 27 varus-aligned hindfeet. Age (p = 0.967), body mass index (p = 0.669), sex (p = 0.820), and side (p = 0.708) were similar in the 3 groups. Hindfoot alignment was quantified on the basis of WBCT data sets with use of multiple measurements. BMD was calculated with use of the mean Hounsfield unit (HU) value as a surrogate. The HU medial-to-lateral ratio (HUR), calculated from tibial and talar medial and lateral half-volumes, was the primary outcome of the study. RESULTS The 3 groups significantly differed (p < 0.001) in terms of tibial HUR (median, 0.91 [interquartile range (IQR), 0.75 to 0.98] in valgus hindfeet, 1 [IQR, 0.94 to 1.05] in normal hindfeet, and 1.04 [IQR, 0.99 to 1.1] in varus hindfeet) and talar HUR (0.74 [IQR, 0.50 to 0.80] in valgus hindfeet, 0.82 [IQR, 0.76 to 0.87] in normal hindfeet, and 0.92 [IQR, 0.86 to 1.05] in varus hindfeet). Linear regression showed that all hindfoot measurements significantly correlated with tibial and talar HUR (p < 0.001 for all). The mean HU values for normally-aligned hindfeet were 495.2 ± 110 (medial tibia), 495.6 ± 108.1 (lateral tibia), 368.9 ± 80.3 (medial talus), 448.2 ± 90.6 (lateral talus), and 686.7 ± 120.4 (fibula). The mean HU value for each compartment was not significantly different across groups. CONCLUSIONS Hindfoot alignment and medial-to-lateral BMD distribution were correlated. In varus hindfeet, an increased HU medial-to-lateral ratio was consistent with a greater medial bone density in the tibia and talus as compared with the lateral parts of these bones. In valgus hindfeet, a decreased ratio suggested greater bone density in the lateral as compared with the medial parts of both the tibia and the talus. LEVEL OF EVIDENCE Prognostic Level III . See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- François Lintz
- Department of Foot and Ankle Surgery, Clinique de l'Union, Ramsay Healthcare, Saint Jean, France
| | - Alessio Bernasconi
- Trauma and Orthopaedics Unit, Department of Public Health, University of Naples Federico II, Naples, Italy
| | | | - Matthew Welck
- Royal National Orthopaedic Hospital, London, United Kingdom
| | - Scott Ellis
- The Hospital for Special Surgery, Weill Cornell Medical College, New York, NY
| | - Cesar de Cesar Netto
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa
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A Comparative Study on the Voxel Values in Alveolar Bones Acquired by MDCT and Newly Developed Dental Dual-Energy CBCT. SENSORS 2021; 21:s21227552. [PMID: 34833629 PMCID: PMC8619558 DOI: 10.3390/s21227552] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/02/2021] [Accepted: 11/10/2021] [Indexed: 01/23/2023]
Abstract
The purpose of this study was to analyze the effectiveness of newly developed dental dual-energy (DE) cone-beam computed tomography (CBCT) to compare both the voxel values in hard bone tissue of DE-CBCT and multidetector computed tomography (MDCT) images, collected in a clinical trial conducted at Seoul National University Dental Hospital. A software implemented as a scripted module of a three-dimensional (3D) slicer was developed to register the volume data from the MDCT space to DE-CBCT, locate the same 3D regions of interest (ROIs) in each image space, and extract the statistics of the ROIs. The mean values were paired and used as representative values of the ROIs. A scatter plot with the line of equality and Bland–Altman (BA) plot of difference for a pair of measured means were used for statistical analysis. Of the ROI pairs, 96% were within ±15% from the identity line, and more than 95% of the measured ROI pairs were within the limits of agreement of the 95% confidence intervals (CIs), with the CI of the limits in BA plots. The newly developed dental DE-CBCT showed a level of voxel value accuracy similar to that of MDCT.
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