The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)
- Volume 36 Issue 2
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- Pages.366-378
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- 1998
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
A STUDY OF THE MICROLEAKAGE AT THE POST AND CORE AND TOOTH INTERFACE
포스트 코아와 치근 계면에서의 미세누출에 관한 연구
- Shin, Ji-Cheol (Dept. of Prosthodontics, School of Dentistry, Seoul National University) ;
- Lee, Sun-Hyung (Dept. of Prosthodontics, School of Dentistry, Seoul National University) ;
- Yang, Jae-Ho (Dept. of Prosthodontics, School of Dentistry, Seoul National University) ;
- Chung, Hun-Young (Dept. of Prosthodontics, School of Dentistry, Seoul National University)
- Published : 1998.04.01
Abstract
Post and core is used to restore endodontically treated teeth, and it is a very important part which supplies retention and support to the prosthesis. But occasionally, caries occured due to the microleakage at the post and core and tooth interface, the failure of prosthesis has happened. In this study, the microleakage of cast gold post and core, amalgam core, and composite resin core was investigated and compared. The coronal part of the extracted upper anterior teeth were removed and endodontically treated with conventional method. The teeth were divided into three groups. In group 1, cast gold post and core was cemented with resin cement and in group 2, ready-made post was cemented with resin cement and amalgam core was built. In group 3, ready-made post was cemented with resin cement and composite resin core was built. All specimens were thermocycled between