화학중합형 및 광중합형 레진접착제가 금속 및 도재브라켓의 전단결합강도에 미치는 영향
EFFECTS OF CHEMICALLY CURED RESIN AND LEGHT CURED RESIN ON SHEAR BOND STRENGTH OF METAL BRACKET AND CERAMIC BRACKET
윤덕상, 이기수,
소속 상세정보
윤덕상 ( ) - 경희대학교 지과대학 치과교정학교실
이기수 ( ) - 경희대학교 지과대학 치과교정학교실
KMID : 0352219930150010147
Abstract
This study was designed for comparison of shear bond strengths and failure patterns of four experimental groups which combinated mesh-backed metal brackets and texture based ceramic brackets (Transcend series 2000`T") with chemically cured resin (Mono Lok2`Tn´") and visible light cured resin (TransbondrM)
Brackets were bonded on the extracted human bicuspids, after etching them by manufacturer´s recom mand, and the shear bond strengths were measured on the Instron machine after 24 hrs passed in the 3´7t water bath.
The results were as follows.
1. Ceramic brackets, transcend series 2000CTM´, bonded with MonoLok2(TM´ showed statistically higher shear bond strength than mesh-backed metal brackets bonded with MonoLok2(TM´
2. There was no significant difference in shear bond strengths between metal and ceramic brackets bonded with Transbond`TM"
3. Ceramic brackets bonded with both TransbondTM´ and MonoLok2`T"" showed primarily fractures between brackets adhesive interface.
4. Enamel crack was not found in anyone specimen.
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