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마이크로 웨이브 소결 과정이 CAD/CAM 지르코니아 코아의 적합도에 미치는 영향

Other Titles
 The Influence of Microwave Sintering Process on the Adaptation of CAD/CAM Zirconia Core 
Authors
 김근배  ;  김지환  ;  이근우 
Citation
 대한치과턱관절기능교합학회지, Vol.25(2) : 95-107, 2009 
Journal Title
 대한치과턱관절기능교합학회지 
ISSN
 1225-8199 
Issue Date
2009
Keywords
microwave sintering ; CAD/CAM ; zirconia ; marginal and internal fit ; micro-CT
Abstract
The purpose of this research was to examine the fitness of zirconia cores that were made by different sintering methods; generic electricity furnace and microwave furnace. Firstly, 12 cores for each group were made by using each different sintering process and attached them to a metal die with silicon. The internal and marginal gap of sintered zirconia was measured by using Skyscan 1076 micro-CT, then it was reorganized by CT-An software. To each samples, we extracted B-L image, M-D image of cutting side, and cross-sectional side of tooth long axis and calculated the mean value of marginal, axial, and occlusal gap each side. Results: 1. The mean marginal gap of sintered zirconia was 36.20μm for EVE, 47.67μm for LAV, 52.47μm for DEN, and 54.63μm for CER. 2. For the axial wall, the research showed the largest value of 63.49um for EVE, but there were no statistical significance. 3. In related to the occlusal internal measurement, DEN showed the smallest value (77.06um), EVE and CER showed significantly high value. From this study, it is suggested that CAD/CAM zirconia core which was made in the process of microwave sintering has clinically acceptable values in marginal and internal gap
Files in This Item:
T200902474.pdf Download
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jee Hwan(김지환) ORCID logo https://orcid.org/0000-0002-0872-4906
Lee, Keun Woo(이근우) ORCID logo https://orcid.org/0000-0002-3153-190X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/104230
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