Current Research in Dental Sciences, cilt.32, sa.1, ss.5-10, 2022 (Scopus)
Objective: The aim of this study is to evaluate the bone morphology in the mandibular first molar region to assist in dental implant planning. Methods: In the study, cone beam computed tomography (CBCT) images of a total of 109 patients were used and 200 mandibular first molar tooth regions were evaluated. Parameters such as the presence of lingual con-cavity, the presence of an undercuts affecting implant planning, canal corticalization, canal position and bone quality were examined. In addition, measurements such as bone thickness, height, and concavity angle and depth in cases with concavity were recorded. The changes in the measurements according to age, gender, jaw direction (right/left), and tooth presence were statistically analyzed. Results: When the presence of lingual concavity, implant compatibility status, canal corticalization, canal position and bone quality according to gender, jaw direction and tooth presence were examined, it was observed that only the presence of concavity was statistically significantly higher in toothed patients (P =.018). Also, it was found that the bone width showed statistically significant averages according to the presence of teeth, and the bone height showed statistically significant averages according to both gender and tooth presence (P <.001). Concavity angle was independent of gender, jaw direction and tooth presence (P <.05), however, the depth of concavity was found to be statistically significantly higher in women than in men (P =.013). Therewas no correlation between age and concavity angle and depth (P >.05), however, an negative correlation was observed between age and bone thickness and height (P <.05). Conclusion: In the results of the study, it is seen that the bone volume is less in women, in edentulous cases and in advanced ages, and the depth of concavity is higher in women. All these results show once again the necessity of detailed analysis of all patients with 3D imaging methods before implant planning. Dentists awareness of this issue should be increased.