A new manufacturing method of all ceramic restoration using alumina tape and presentation of clinical cases
오남식, 김의성, 이근우, 한중석, 김대준, 이명현,
소속 상세정보
오남식 ( Oh Nam-Sik ) - 인하대학교 의과대학 치과학교실
김의성 ( Kim Eui-Seong ) - 인하대학교 의과대학 치과학교실
이근우 ( Lee Keun-Woo ) - 연세대학교 치과대학 치과보철학교실
한중석 ( Han Jung-Suk ) - 서울대학교 치과대학 치과보철학교실
김대준 ( Kim Dae-Joon ) - 한국과학기술연구원 세라믹스연구부
이명현 ( Lee Myung-Hyun ) - 한국과학기술연구원
KMID : 0362420000380060800
Abstract
In an effort to facilitate fabrication procedure of all ceramic crowns, a novel preparation method for all ceramic crown using alumina tape was developed. The alumina tape having a uniform thickness was cast by using Doctor blade method. The physical properties of newly introduced alumina tape has biaxial flexure strength of 500.600 MPa. The value of toughness is 3.18~3,28 MPa.m(1/2) which corelates with facture and the linear shrinkage rate of the alumina tape is 0.44% during core production. The marginal fitness of the alumina tape all-ceramic restoration with 90degrees shoulder margin had average marginal discrepancy at 78.3micrometer and average marginal gap at 44.4micrometer. At the marginal preparation of 135degrees deep chamfer, the average marginal discrepancy at 82.1micrometer and the average marginal gap at 40.2micrometer had been reported. This fabrication procedure of all ceramic crowns with alumina tapes is easier and less technical sensitive for dental technicians. After restoration with new all ceramic crowns we followed the patients 2 years later, there were no complications as porcelain fractures or periodontal disease. We had good esthetic clinical results with new all ceramic crowns.
키워드
원문 및 링크아웃 정보
등재저널 정보