광중합 Glass Ionomer Cement의 결합 강도에 대한 실험적 연구
EXPERIMENTAL STUDY OF BOND STRENGTH OF LIGHT-CURED GLASS IONOMER CEMENT
김보혜, 김재관,
소속 상세정보
김보혜 ( ) - 연세대학교 의과대학 내과학교실
김재관 ( ) - 연세대학교 치과대학 소아치과학교실
KMID : 0358919930200020590
Abstract
결론
80개의 발거된 대구치의 협면을 편평하게하여 각각 40개씩 법랑질과 상아질이 노출되도록
한 다음 10개씩 8개의 군으로 나누어 노출된 치면에 Shofu G.I type Ⅱ, Fuji Ⅱ, Fuji Ⅱ
LC, Silux Plus를 부착시켰다. 완성된 시편은 24시간 동안 37℃, 100% 상대습도에서 보관한
후 만능 시험기(Instron 6022, Instron Co.)를 사용하여 전달결합강도를 측정함으로써 다음과
같은 결론을 얻었다.
1. 법랑질에서의 결합강도는 Shofu G. I type Ⅱ, Fuji Ⅱ, Fuji Ⅱ LC, Silux Plus순으로
증가하였으며 자가중합재료인 Shofu G. I type Ⅱ와 Fuji Ⅱ 사이에서를 제외하고는 통계학
적 유의차가 있었다(p<0.01).
2. 상아질에서의 경합강도는 Shofu G. I type Ⅱ, Fuji Ⅱ, Silux Plus, Fuji Ⅱ LC순으로
증가하였으며 통계학적 유의차가 있었다(P<0.05).
3. 각 재료의 법랑질과 상아질에서의 결합강도 비교시 법랑질에서가 더 크게 나타났으며
통계학적 유의차가 있었다(P<0.01).
이상의 결과로 보아 심미적 수복시 Glass Ionomer Cement를 사용할 경우 자가중합형보
다는 치질과 경합강도가 더 큰 광중합형을 사용하는것이 임상에서 더 유용하리라고 사료된다.
#초록#
The purpose of study was to compare bond strength of Light-cured Glass Ionomer
Cement with those of Chemically-cured Glass Ionomer Cement and Composite Resin to
enamel and dentin surface.
Each extracted molars, the buccal surfaces of which were flattened, were divided into
two groups, so that 40 teeth their enamel exposed and the other 40 had their dentin
exposed.
The materials used were :
1) Fuji Ⅱ LC(Light-cured Glass Ionomer Cement)
2) Fuji Ⅱ & Shofu G. I type Ⅱ(Chemically-cured Glass Iomomer Cement)
3) Silux Plus(Composite Resin)
Each of the materials was applied to the exposed surface of 10 teeth by insertion into
a cylinderical-shaped matrix which is 3mm diameter and 2mm in height.
The completed specimens were stored at 37℃ under 100% humidity for 24 hours :
then the shear bond strength of each material to enamel and dentin surface were
measured with Instron universal testing machine.
The following results were obtained :
1. Bond sirength to enamel surface increased in order of Shofu G. I type Ⅱ, Fuji Ⅱ,
Fuji Ⅱ LC, and Silux Plus. Statistical significance was obserbed except for Shofu G. I
type Ⅱ and Fuji Ⅱ, which are chemically-cured materials(P<0.01).
2. Bond strength to dentin surface increased in order of Shofu G. I type Ⅱ, Fuji Ⅱ,
Silux Plus, Fuji Ⅱ LC. There was statistical significance(P<0.05).
3. Bond strength to enamel surface was greater than that to dentin. There was
statistical significance (p<0.01).
From such results, it can be concluded that when Glass Ionomer Cement is used for
esthetic restoration, light-cured type, which has greater bond strenth to tooth structure,
is preferred to chemically-cured type.
Bond strength; Light-cured glass ionomer cement Chemically-cured glass ionomer cement; Composite resin;
키워드
원문 및 링크아웃 정보
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