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American Journal of Oral Medicine and Radiology

Volume 5, Issue 2, 2018
Mcmed International
American Journal of Oral Medicine and Radiology
Issn
XXX-XXXX (Print), 2394 - 7721 (Online)
Frequency
bi-annual
Email
editorajomr@mcmed.us
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Abstract
Title
INFLUENCE OF SURFACE TREATMENTS ON SHEAR BOND STRENGTH BETWEEN COMPOSITE RESIN AND ACRYLIC RESIN DENTURE TEETH-AN IN VITRO STUDY
Author
Arun Kumar
Email
drarun922@gmail.com
keyword
Surface treatments, shear bond strength, composite resin, acrylic resin.
Abstract
Visible light activated composite resins are preferred for various prosthodontic applications as restoration of fractured or deboned artificial teeth because of the advantages of excellent aesthetics, superior colour stability, improved wear resistance and minimum inconvenience to the patients. However, the bonding of composite resin to acrylic resin denture teeth has remained unpredictable. Various methods as acid etching, air abrasion, use of solvents or bonding agents have been reported to improve the bond strength of these two resins. But there is no consensus on the results obtained with different surface treatments. The purpose of this study is to evaluate the efficacy of different combinations of surface treatments used to improve the bond strength between light activated composite resin and acrylic resin denture teeth. Ninety test specimens of acrylic resin denture teeth of the same mold were prepared and divided into six groups, containing 15 samples each. The denture teeth were subjected to six different combinations of surface treatments including acid etching with 35% phosphoric acid, application of methyl methacrylatre, bonding agent, aluminium oxide powder and flowable composite. Over all treated surfaces, light activated composite resin was applied in increments and cured. The shear bond strength of composite resin to acrylic resin denture teeth was determined and analyzed statistically.
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