|
KMID : 0354619930050010379
|
|
Journal Dankook Dental Research Institute
1993 Volume.5 No. 1 p.379 ~ p.0
|
|
|
A Comparative Study on the Effect of Topical Fluoride Application on Bond Strength and Surface Structure of Composite Resin Restoration
|
|
Kim Yong-Kee
|
|
|
Abstract
|
|
|
The purposes of this in vitro study were to evaluate the possible influences of topical fluoride application on bond strength and surface texture of composite resin restoration. Universal testing machine(Model No,4204, Instron) was used to
measure
the
shear bond strength and surface changes were investigated through scanning electron microscope(JSM-5200, JEOL, JAPAN).
@ES The summary of results obtained from the present experiment were s follows ;
@EN 1. The bond strengths of all groups decreased with time.
2. The mean bond strength of group II was significantly less than those of group I and III(p<0.05).
3. A majority of bond failure occurred at tooth-resin interface of samples.
4. APF produced a negate effect on resin surface with or without protecting agent application, whereas NaF did not.
5. The resin glaze treatment provided superior surface protecting effect imcroscopically to bonding resin treatment within the present experimental period.
6. The results of this study indicate that the resin surface should be covered with protecting agent prior to APF topical application and that APF should not be applied before acid etching when the bond strength of resin is considered.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|