CAD/CAM으로 제작한 코누스내관의 변연적합
Marginal Adaptation Of The Conical Inner Crown Fabricated With Cad/cam
김인섭, 강동완,
소속 상세정보
김인섭 ( Kim In-Sup ) - 조선대학교 치과대학 보철학교실
강동완 ( Kang Dong-Wan ) - 조선대학교 치과대학 보철학교실
KMID : 0362420020400010030
Abstract
This study was to evaluate the fabrication method and marginal adaptation of the conical inner crown fabricated with CAD/CAM.The informations on abutment teeth were transferred to a computer with a micro contact digitizer,which had a 50mum accuracy on the master die.A conical inner crown was designed on a computer and a real crown was machined based on this design using CAM. The marginal fit of a computer-machined conical inner crown was assessed using electron microscopy.Measurement of the marginal gap between the conical inner crown and the abutment was performed on four different locations (mesial,distal,buccal,and lingual surfaces)of the finish line. The evaluation was based on 10 test specimens. The results were as follow. 1.The mean marginal gap between the conical inner crown and abutment tooth was 83.2 +/-43mum,28.9%of the specimen showed marginal gap over 100 m. 2.The fabrication method using CATRS and CAM provided clinically acceptable marginal fitness compared to conventional casting method (p<0.05).
키워드
원문 및 링크아웃 정보
등재저널 정보