비귀금속합금 표면처리방법과 레진시멘트 종류가 접착인장강도에 미치는 영향에 관한 연구

A STUDY OF TENSILE BOND STRENGTH ACCORDING TO VARIED TREATMENT METHODS OF NONPRECIOUS METAL SURFACE AND RESIN CEMENTS

  • 양태진 (단국대학교 치과대학 보철학교실) ;
  • 임주환 (단국대학교 치과대학 보철학교실) ;
  • 조인호 (단국대학교 치과대학 보철학교실)
  • Yang, Tai-Jin (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Lim, Ju-Hwan (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Cho, In-Ho (Department of Prosthodontics, College of Dentistry, Dankook University)
  • 발행 : 1996.11.01

초록

Retention is one of the major factors deciding the success and longevity of resin bonded restorations. The purpose of this study was to find a better resin cement and metal surface treatment method that would enhance the bonding strength. The bonding surfaces of Verabond, one of Ni-Cr-Be alloys, were treated with sandblasting(Group 1), sandblasting and EZ-Oxisor(Group 2), sandblasting and silicoating(Group 3), and than thay were bonded with All-Bond C & B, Panavia 21, Superbond C & B. The specimens were thermocycled, and the tensile bond strength was measured using the unive-rsal testing machine. Also the mode of bond failure was observed. The results were as folows. 1. The Superbond C & B showed the highest bond strength among the three resin cements and decreased in the order of Panavia 21, All-Bond C & B. There was significant differe-nce among them(p<0.05). 2. Group 3 showed the highest bond strength among the three metal surface treatment methods, and there was significant difference compared with Group 1 and Group 2(p<0.05). But there was no significant difference between Group 1 and Group 2. 3. Observing the mode of bond failure, Superbond C & B and Panavia 21 showed mostly cohesive failure in all groups. All-Bond C & B showed all types of bond failure in Group 3, but Group 1 and Group 2 showed only adhesive failure. 4. According to the results of this study, the silicoating method and 4-META containing resin cement were considered to be more acceptable for resin bonded restoration.

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