Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
권호 표지

COMPARISON OF MICROLEAKAGE OF GALLIUM ALLOY AND AMALGAM RESTORATION

갈륨과 아말감 수복물의 변연미세누출에 관한 비교 연구

  • Lee, Min-Ho (Dept. of Conservative Dentistry, College of School, Pusan National University) ;
  • Lee, Hee-Joo (Dept. of Conservative Dentistry, College of School, Pusan National University) ;
  • Hur, Bock (Dept. of Conservative Dentistry, College of School, Pusan National University)
  • 이민호 (부산대학교 치과대학 치과보존학교실) ;
  • 이희주 (부산대학교 치과대학 치과보존학교실) ;
  • 허복 (부산대학교 치과대학 치과보존학교실)
  • Published : 1998.04.07
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Abstract

This in vitro study compared the microleakage of 4 lining conditions when used with Gallium alloy GF II and Valiant PhD. Class V cavity was prepared on both buccal and lingual surface of 80 extracted human premolar & molar teeth with one margin in enamel and another in dentin. Before restoration, prepared cavities were applied to no-liner, cavity varnish, Scotchbond multipurpose, and Superbond D-liner II plus according to manufacture's instructions. The restored teeth were stored in saline for 1 week, then thermocycled for 100 times, stained with 0.5% basic fuchsin dye for 1 day, sectioned, and observed using a light microscope. Following results were obtained. 1. The leakage value of Superbond-lined group showed significantly lower than that of nolined group on both margins of Valiant PhD(p<0.05). 2; There was no significant difference between the 4 lining conditions in Gallium alloy GF II (p>0.05). 3. When We make a comparison between Gallium alloy GF II and Valiant PhD under same lining conditions, the microleakage value of Gallium alloy GF II showed lower than that of Valiant PhD on occlusal & gingival margin(p<0.05) except for Superbond-lined group(p>0.05).

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