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KMID : 0988720050210020143
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Journal of the Korean Academy of Stomatognathic Function and occlusion
2005 Volume.21 No. 2 p.143 ~ p.151
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A Study on the Shear Bond Strength of Resin Artificial Tooth Depending on Repair Techniques
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Lee Jong-Hyuk
Cho In-Ho
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Abstract
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The purpose of this study was to evaluate the most effective method for repairing the exfoliated resin teeth. The specimens were divided into five groups according to repair method and presence of retention holes. The groups were as follows Group1 : Control group Group2 : Sprinkle method with no retention holes Group3 : Sprinkle method with retention holes Group4 : Flask method with no retention holes Group5 : Flask method with retention holes The results were as follows. 1. According to shear bond strength, the value decreased in the order of group1, group5, group3, group2, group4 and there were significant difference between, each group except between group1 and groups5, group2 and group3, group2 and group4(p < 0.05). 2. According to observations of the exfoliation surface, group2 and 4 showed more failure in the denture base resin and repair resin interface, but in group1, 3 and 5 there were more mixed failures. From the results above, there were no significant difference between repair methods without retention holes. But when comparing groups with retention holes, the flask method showed significantly improved results compared to the sprinkle method. Especially, group5 showed similar results as the control group.
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KEYWORD
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artificial resin teeth, denture repair, retention, shear bond strength
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