세 가지 방식으로 제작한 하악 총의치의 중합 전후에 따른 인공치아 위치 3차원 분석
Three-dimensional analysis of artificial teeth position according to three type complete mandibular denture before and after polymerization
박진영, 김동연, 김원수, 이광영, 정일도, 배소연, 김지환, 김웅철,
소속 상세정보
박진영 ( Park Jin-Young ) - 고려대학교 보건과학대학 보건과학연구소
김동연 ( Kim Dong-Yeon ) - 고려대학교 보건과학대학 보건과학연구소
김원수 ( Kim Won-Soo ) - 대전보건대학교 치기공과
이광영 ( Lee Gwang-Young ) - 원광보건대학교 치기공과
정일도 ( Jung In-Do ) - 고려대학교 보건과학대학 보건과학연구소
배소연 ( Bae So-Yeon ) - 고려대학교 대학원 보건과학과
김지환 ( Kim Ji-Hwan ) - 고려대학교 대학원 보건과학과
김웅철 ( Kim Woong-Chul ) - 고려대학교 대학원 보건과학과
Abstract
Purpose: The aim of this study was to evaluate accuracy of three type complete mandibular denture of before and after polymerization.
Methods: Mandibular edentulous model was selected as the master model. 15 study models were made by Type Ⅳ stone. Wax complete mandibular dentures were produced by the denture base and artificial teeth. Before and after curing, STL files were obtained using a blue scanner.
By superimposing the digitized complete mandibular denture data(after curing) with the CAD-reference(before curing) three-dimensionally, visual fit-discrepancies were drawn by calculating the root mean square (RMS) and visualized on a color-difference map. Each calculated RMS-value was statistically analyzed by 1-way analysis of variance(ANOVA) (α = .05).
Results: Mean(SD) RMS-values was OM group 88.98(6.10)㎛, BM group 82.35(13.46)㎛, BDM group 77.83(9.46)㎛.
The results of the 1-way ANOVA showed no statistically significant differences in the RMS values of the Three groups for the material (P > .241).
Conclusion : Deformation of artificial teeth position was observed in all groups after resin polymerization. But the values, all group were within the clinically acceptable range. The values of BDM group showed the least deformation than the other two groups.
키워드
Complete mandibular denture; Polymerization; Three-dimensional analysis; Bar-type glass fiber mesh; Shrinkage
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