Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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MARGINAL LEAKAGE OF CLASS 2 GLASS-IONOMER CEMENT RESTORATIONS NOT INVOLVING OCCLUSAL SURFACE

교합면을 포함하지 않는 2급 글래스 아이오노머 시멘트 수복물의 변연누출

  • Lee, Young-Ran (Dept. of Dentistry, Graduate School, Pusan Notional University) ;
  • Hur, Bock (Dept. of Dentistry, Graduate School, Pusan Notional University) ;
  • Lee, Hee-Joo (Dept. of Dentistry, Graduate School, Pusan Notional University)
  • 이영란 (부산대학교 치과대학 치과보존학교실) ;
  • 허복 (부산대학교 치과대학 치과보존학교실) ;
  • 이희주 (부산대학교 치과대학 치과보존학교실)
  • Published : 1998.04.07
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Abstract

The microleakage of direct-access Class 2 restorations was evaluated. Cavities were prepared at mesial and distal proximal enamel surfaces of 20 extracted human molars through buccal window. Prepared cavities were filled with Ketac-Fil, Ketac-Silver, and Fuji II LC, following manufacturer's instructions. 4 specimens of each restorations were made through sectioning 1/4 of bucco-lingual length mesio-distally after thermocycling between $5^{\circ}C$ and $60^{\circ}C$ and imerging 0.5% basic-fuchsin dye solution. Leakage at both occlusal and gingival margin of each specimen was scored 0 to 3 with stereomicroscope. The results were as follows: 1. At occlusal margin, leakage in Ketac-Fil group was more than Ketac-Silver and Fuji II LC group (ANOVA p<0.05) and there was no significant difference between Ketac-Silver and Fuji II LC group(p>0.05), and at gingival margin, there was no significant difference amang materials (p>0.05). 2. Occlusal margin leaked more than gingival margin in Ketac-Silver and Fuji II LC group (t-test p<0.05). 3. Leakage was different according to bucco-lingual location in Ketac-Fil and Fuji II LC group, and lingaul specimen exhibited more leakage(ANOVA p<0.05).

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