Aim:The morphological changes in tooth structure due to aging gain importance in the adult period. These age-related changes can be used to determine age and sex. The aim of this study was to determine the usability of first molar tooth measurements obtained by cone beam computed tomography (CBCT) in estimating chronological age and sex in Turkish study group. Materials and methods:Three-dimensional images of 332 patients older than 12 years of age with known chronological age and sex were evaluated by semi-automatic segmentation performed separately by two observers. Pulp volume and tooth volume were measured from maxillary or mandibular molar tooth in each patient. Simple linear regression analysis and discriminant function analysis were performed to estimate age and sex using the measurements. In addition, independent sample t-test was used to compare the measurements according to sex and tooth position.Results: Sex was estimated by maxillary first molar volume ratio in 76.6% of women and 56.3% of men. Age estimation (AE) with pulp/tooth volume ratio (PTVR) gave more effective results in males and maxillary first molars. Conclusions:In this study, it was found that maxillary first molar volume ratio gave more accurate results in males AE and in females' sex estimation (SE).

No abstract

No abstract

No abstract

Objectives The aim of the study is to analyze the association of different bitter and sweet gene receptor polymorphisms and bitter and sweet food consumption on formation of dental caries in Turkish adult population. Methods This study included 205 adults whose detailed intraoral health examination was completed and decayed, missing, filled teeth (DMFT) index values were recorded. A mini questionnaire was applied to assess the consumption of bitter and sweet food. A venous blood sample from each participant was collected in Ethylenediamine tetraacetic acid (EDTA) tubes. Further, DNA samples were isolated from the blood samples by utilizing a DNA isolation kit, which were stored at +4 °C prior to the analysis. Taste receptor type 2 member 38 (TAS2R38; rs10246939, rs713598, rs1726866), Taste receptor type 1 member 2 (TAS1R2; rs35874116, rs9701796), and Taste receptor type 1 member 3 (TAS1R3; rs307355) gene polymorphisms were detected using real-time polymerase chain reaction (PCR). Results There was no statistically significant association between the TAS2R38, TAS1R2, and TAS1R3 gene polymorphism and the DMFT index (p>0.05). No significant difference was found between the consumption of bitter and sweet food and the DMFT index (p>0.05). Conclusions TAS2R38 (rs10246939, rs713598, rs1726866), TAS1R2 (rs35874116, rs9701796), and TAS1R3 (rs307355) gene polymorphism may not be associated with the formation of dental caries in the Turkish adult population.