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The Influence of Dentin Desensitizers on the Shear Bond Strength of a Total-etch System

Author: QinYuJie
Tutor: ChengXiangRong；XuDongXuan；LiZhiYong；LiRong
School: Wuhan University
Course: Clinical Stomatology
Keywords: Dentin hypersensitivity Dentin desensitizer Shear strength
CLC: R783.5
Type: Master's thesis
Year: 2005
Downloads: 93
Quote: 1
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Abstract


Objective: To study three kinds of dentin desensitizer treatment after total-etch dentin adhesive shear strength. Methods: Unplug the need for orthodontic treatment bicuspids 40 . Amputated root , crown cut in the cheek, tongue two parts. Rubbed cheek, tongue surface enamel layer , ready to dentin surface, exposed dentin surfaces , the rest embedded in self-curing resin. The 80 samples are divided into 8 groups, before etching , after etching was washed with 30% potassium oxalate , 33% potassium nitrate, OrTM , triple-distilled water dentin surfaces. Sample at 37 ℃ water bath for 24 hours, measured in shear strength , loading speed of 0.5mm/min. Using two-way ANOVA and Turkey's test to analyze the data . Results: The triple-distilled water group was significantly higher than the shear strength of desensitizing agent treatment groups. But no matter which one to use desensitizing agents before or after etching the etching process dentin on shear strength was no statistically significant difference . Conclusion: The results showed that use of desensitizing agents dentin surface treatment can significantly reduce the Single Bond adhesive strength .

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CLC: > Medicine, health > Oral Sciences > Oral orthotics > Journal of Orthodontics
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