A STUDY ON THE SHEAR BOND STRENGTHS OF VISIBLE LIGHT-CURED GLASS IONOMER CEMENT WITH SEVERAL LIGHT-CURING UNITS

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Journal of the Korean Academy of Pediatric Dentistry 2007;34(1):81-90.
Published online February 28, 2007.

A STUDY ON THE SHEAR BOND STRENGTHS OF VISIBLE LIGHT-CURED GLASS IONOMER CEMENT WITH SEVERAL LIGHT-CURING UNITS

단국대학교 치과대학 소아치과학교실

수종의 광중합기를 이용한 교정용 광중합형 글라스 아이오노머 시멘트의 전단 결합 강도에 관한 연구

김민수, 유승훈, 김종수

단국대학교 치과대학 소아치과학교실

Correspondence: ,

Abstract

The purpose of this study was to assess the effect of light-tip distance on the shear bond strength of a visible light-cured glass ionomer cement(Fuji Ortho LC ; GC, Japan) cured with three different light curing units : a halogen light(Elipar Trilight ; 3M ESPE, Seefeld, Germany), a Light Emitting Diode (LED, Elipar Freelight2 ; 3M ESPE, Seefeld, Germany) and a plasma arc light (Flipo ; LOKKI, France). 1. When used at a distance of 0mm from the bracket, the three light curing units showed no statistically different shear bond strengths. At distance of 3 and 6mm, no significant differences were found between the halogen and plasma arc lights, but both had significantly higher shear bond strengths than the LED light. 2. The halogen light and plasma arc light showed that no significant differences in bond strength were found among the three distances. Using the LED light, a greater light-tip distance produced significantly lower shear bond strengths.

Key Words: Shear bond strengths, Light curing units, Visible light-cured glass ionomer cement