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ANALYSIS OF ALVEOLAR BONE AND MAXILLARY SINUS OF EDENTULOUS MAXILLA MOLAR SITES USING CONE BEAM COMPUTERED TOMOGRAPHY AT VIET NAM – CUBA FRIENDSHIP HOSPITAL
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Abstract
Objective: Assess the size, density of jaw bone and characteristics of the maxillary sinus in the area of missing maxillary molars using CT Cone Beam film at Vietnam - Cuba Friendship Hospital. Subject: DICOM file of CTCB film of Patient lost upper molars taken at Vietnam - Cuba Friendship Hospital from January 2024 to April 2024. Methods: Cross-sectional descriptive study. Results: Results: 98 regions of edentulous upper molar areas, with a mean patient age of 58.4 years. The male-to-female ratio was 48% to 52%. The height of the alveolar bone >4mm was high (85.7%), with two groups, 4-8mm and >8mm, representing 41.8% and 43.9%, respectively. When one tooth was lost, the alveolar bone width >6mm predominated (58.8% of regions with one missing tooth). When two teeth were lost, the alveolar bone width <6mm predominated (61.5% of regions with two missing teeth). When one tooth was lost, the alveolar bone length <12mm, with the 8-12mm group comprising 81.5%. When two teeth were lost, the alveolar bone length >8mm, with similar proportions in the 8-12mm and >14mm groups. No D1 or D2 bone density was observed. D4 and D5 bone densities were primarily found, with proportions of 37.8% and 55.1%, respectively. The rate of abnormal sinus mucosal morphology was 37.8%, with the flat and polyp groups representing 33.7% and 4.1%, respectively. The thickness of the sinus mucosa >2mm accounted for 36.7%. The rate of sinus septa was 14%. Conclusion: The difference in alveolar bone width according to the number of missing teeth was statistically significant. No D1 or D2 bone density was found, and the rate of abnormal sinus mucosal morphology was relatively high.
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Keywords
Maxillary posterior loss, dimension, Cone Beam CT
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