대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제38권2호
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- Pages.169-177
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- 2000
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
코어 형태와 시멘트 종류에 따른 전부주조금관의 유지력에 관한 연구
A STUDY OF CORE TYPE AND LUTING CEMENTS ON COMPLETE CAST CROWN RETENTION
- 백상현 (서울대학교 치과대학 치과보철학교실) ;
- 장익태 (서울대학교 치과대학 치과보철학교실) ;
- 이선형 (서울대학교 치과대학 치과보철학교실) ;
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양재호
(서울대학교 치과대학 치과보철학교실) ;
- 허성주 (서울대학교 치과대학 치과보철학교실)
- Paek, Sang-Hyun (Department of Prosthodontics, College of Dentistry, Seoul National University) ;
- Chang, Ik-Tae (Department of Prosthodontics, College of Dentistry, Seoul National University) ;
- Lee, Sun-Hyung (Department of Prosthodontics, College of Dentistry, Seoul National University) ;
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Yang, Jae-Ho
(Department of Prosthodontics, College of Dentistry, Seoul National University) ;
- Heo, Seong-Joo (Department of Prosthodontics, College of Dentistry, Seoul National University)
- 발행 : 2000.04.01
초록
The purpose of this study was to compare the retention of complete cast crown over amalgam ores, composite resin cores, and cast gold cores when cemented with three different luting agents. Eighteen core specimens each of amalgam(Bestaloy, Dong Myung, Seoul, Korea), composite resin (Z100, 3M Dental product, st. Paul, Minn) and type IV gold alloy (Ba-4, Heesung Engelhard Corp., Korea) were made in a customized milling stainless steel die. A wax pattern with a loop attached to occlusal surface was made for each core and a type II gold alloy casting was fabricated. The castings which had clinically acceptable marginal fit were used as test samples. The following luting cements were used to cement cast crowns on each core material : (1) zinc phosphate cement (Confi-dental Products Co., USA) (2) glass-ionomer cement (Fuji Plus, GC Industrial Corp., Tokyo, Japan) (3) resin cement (Panavia 21, Kuraray Co., USA). All cements were mixed according to manufacturers' instructions. A static load of 5kg was then applied for 10 minutes on the crowns. All specimens were stored in saline solution for 24 hours at