상악동 골이식 후 3차원적 부피변화에 대한 평가

Abstract

ABSTRACT Three dimensional volumetric analysis after sinus graft

By Eun-Sik Kim Advisor : Prof. Seong-Yong Moon D.D.S., M.D.S Department of Oral and Maxillofacial Surgery, Graduate School of Chosun University Objectives: The aim of this study was to evaluate the augmentation volume for a sinus grafting procedure based on conebeam CT(CBCT) scans and to assess the efficacy of bioabsorbable membrane which is used routinely during the sinus lifting procedure. Methods: Fourteen patients were investigated and volumetric analysis was done with Ondemand 3DTM software(Cybermed, Seoul, Korea). CBCT was taken before surgery and a few days later after surgery. And then Volumetric data were compared with actual grafted volume. Bioabsorbable membrane was used to all patients for sinus membrane protection and to guide bone gergeneration. Results: The average of differences between predicted sinus lift volume and actual grafted volume were 0.278cc, and between actual grafted volume and used graft material amount were 0.283cc. Favorable clinical results were shown in all cases. Conlusions: Slight differences among data represented that the volumetric analysis rendered with CBCT provided highly accurate data. There is significant difference in volumetric change by time, but there is no significant difference between grafting materials. There is no relationship between resorption of sinus grafting bone and success rate of implant.