433 379

Cited 0 times in

다양한 CAD/CAM 시스템으로 제작된 3 본 고정성 가공의치 지르코니아 코어의 변연 및 내면 적합도 평가

Other Titles
 Marginal and internal fitness of three-unit zirconia cores fabricated using several CAD/CAM systems 
 허중보  ;  김우식  ;  김하영  ;  김종은  ;  이정렬  ;  김영수  ;  전영찬  ;  신상완 
 Journal of Korean Academy of Prosthodontics (대한치과보철학회지), Vol.49(3) : 236-244, 2015 
Journal Title
 Journal of Korean Academy of Prosthodontics  (대한치과보철학회지) 
Issue Date
Purpose: This study was aimed to compare the margin and internal fitness of 3-unit zirconia bridge cores fabricated by several CAD/CAM systems using replica technique. Materials and methods: Three unit-bridge models in which upper canine and upper second premolar were used as abutments and upper first premolar was missed, were fabricated. Fourty models were classified into 4 groups (Cerasys􀋓 (Group C), Dentaim􀋓 (Group D), KaVo Everest􀋓 (Group K), LavaTM (Group L)), and zirconia cores were fabricated by each company. Sixteen points were measured on each abutment by replica technique. Statistical analysis was accomplished with two way ANOVA and Dunnett T3(α=.05). Results: In most systems, there was a larger gap on inter margin than outer margin. In the Group K, overall fitness was excellent, but the incisal gap was very large. In the Group C, marginal gap was significantly larger than Group K, but overall internal gap was uniform (P<.05). The axial gap was under 100 μm in all system. The difference between internal and external gap was small on Group L and C. However, internal gap was significantly larger than external gap in Group D (P<.05). The fitness of canine was better than second premolar among abutments (P<.05). Conclusion: The marginal and internal gap was within the clinically allowed range in all of the three systems. There was a larger gap on second premolar than canine on internal and marginal surface. In most systems, there was a larger gap on occlusal surface than axial surface.
Files in This Item:
T201503087.pdf Download
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jong Eun(김종은) ORCID logo https://orcid.org/0000-0002-7834-2524
RIS (EndNote)
XLS (Excel)
사서에게 알리기


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.