Does Tooth Loss In The Mandibular Posterior Region Have An Effect On The Mental Index And Panoramic Mandibular Index?

Purpose: Mental index (MI) and panoramic mandibular index (PMI) are important radiomorphometric indices used for assessing the quality of the mandibular bone. The aim of this study was to investigate the possible effect of mandibular posterior tooth/teeth loss in young adults on the MI and PMI (superior panoramic mandibular index: PMI-s, and inferior panoramic mandibular index: PMI-i). Materials and methods: Digital panoramic radiographs belonging to 253 patients aged between 18-35 years old were examined. According to the inclusion criteria of the study, a patient and control group was formed. The patient group (n=46) included individuals having at least one extracted tooth in the posterior region of the mandible, and the control group (n=45) included full dentate patients. The MI and PMI (PMI-i and PMI-s) were calculated bilaterally for all of the individuals. Results: No significant difference was found between the MI, PMI-i and PMI-s indices of the patient group and the control group among both genders. Conclusion: The mandibular premolar and/or molar teeth loss in young adults did not lead to any change in the MI, PMI-i and PMI-s indices among both genders.PubMedWo

Morphometric analysis of the foramen magnum using cone beam computed tomography

Background/aim: The aim of this study was to perform morphometric analysis of the foramen magnum (FM) using cone-beam computed tomography (CBCT). Materials and methods: This study included CBCT images of 190 individuals (88 males and 102 females). The sagittal and transverse diameters and circumference of the FM were measured. The shape of FM was classified as round, hexagonal, oval, egg-shaped, tetragonal, pentagonal, irregular A, and irregular B. The data were statistically analyzed with chi-square and t-tests to assess the level of significance for sex and age. Results: The means of its sagittal and transverse diameters and also circumference were higher in males than in females. Statistically significant differences were found between males and females for all variables (P 0.05) was found between age groups for all variables. The round type was the most common, in 21.6\% of the patients. Conclusion: CBCT images can provide valuable information regarding FM and the measurements of its sagittal and transvers diameters and also its circumference may be reliably used for sexual dimorphism in anthropometric analysis and forensic medicine

The prevalence of antral exostoses in the maxillary sinuses, evaluated by cone-beam computed tomography.

Exostoses are outgrowths of normal compact and cancellous bone and may occur in different locations of the jaw. Exostoses are a rare anatomic variation in the maxillary sinuses. The purpose of this study was to investigate retrospectively the prevalence of location, size, shape, and symmetry of exostoses in the maxillary sinus, and to assess the relationship between demographic variables (i.e., age and sex) via cone-beam computed tomography images

Dental management and orofacial manifestations of a patient with Robinow Syndrome.

Robinow syndrome (RS) is an extremely rare condition. Characteristic craniofacial findings of RS include a fetal facial appearance, ear abnormalities and oral findings. The aim of this case report was to evaluate the oral findings of a 26-year-old man with RS and to describe the dental treatments performed. The patient had short stature, vertebral anomalies, short and broad fingers, a fetal facial appearance, gingival hyperplasia, fissured tongue, caries and multiple impacted teeth. Periodontal and restorative dental treatments were performed under aseptic conditions with due precautions. No surgical treatment was performed to the impacted teeth because of the lack of symptoms

The prevalence of antral exostoses in the maxillary sinuses, evaluated by cone-beam computed tomography

Bockground/purpose: Exostoses are outgrowths of normal compact and cancellous bone and may occur in different locations of the jaw. Exostoses are a rare anatomic variation in the maxillary sinuses. The purpose of this study was to investigate retrospectively the prevalence of location, size, shape, and symmetry of exostoses in the maxillary sinus, and to assess the relationship between demographic variables (i.e., age and sex) via cone-beam computed tomography images. Materials and methods: Cone-beam computed tomography images of 1000 patients {[}521 (52.1\%) females and 479 (47.9\%) males], aged 10-85 years (mean age, 44 years), were examined. Two investigators examined the exostoses for location (i.e., inferior wall, medial wall, lateral wall, or posterior wall of the maxillary sinuses), size, shape (i.e., broad-based or mushroom-like), and symmetry (i.e., unilateral or bilateral). The age of the patients was categorized into three groups: 10-30 years, 31-50 years, and 51+ years. The data were statistically analyzed by using chi-square test, Fisher's exact test, and the t test. Results: In total, 52 exostoses from 48 patients (4.8\%) were identified. Exostoses were more common in females (n = 28, 58.3\%) than in males (n = 20, 41.7\%); however, there was no statistically significant difference between the sexes (P > 0.05). The presence of exostoses was very similar for all age groups with no statistically significant differences (P > 0.05). Conclusion: Most exostoses were unilateral and on the inferior wall of the maxillary sinus. No statistically significant difference existed between the frequency and location of exostoses for sex or age groups (P > 0.05). (C) Copyright 2016, Association for Dental Sciences of the Republic of China. Published by Elsevier Taiwan LLC