Improving Tensile Bond Strength of Orthodontic Bracket by Applying Papain Gel as an Email Deproteinization Agent

• Published in: Journal of Dentistry Indonesia
• Main Authors: Niswati Fathmah Rosyida, Sri Suparwitri, Pinandi Sri Pudyani
• Format: Article
• Language: English
• Published: Faculty of Dentistry, Universitas Indonesia 2017-12-01
• Subjects: enamel; orthodontic bracket; papain; tensile bond strength
• Online Access: http://jdentistry.ui.ac.id/index.php/JDI/article/view/1095

<p><span class="fontstyle0">An effort to improve the bonding between bracket and tooth surface is required. </span><span class="fontstyle2"><strong>Objective</strong>: </span><span class="fontstyle0">The aim of this study<br />was to evaluate the effect of papain gel on tensile bond strength (TBS) and adhesive remnant index (ARI) of the orthodontic brackets. </span><span class="fontstyle2"><strong>Methods</strong>: </span><span class="fontstyle0">A total of 42 healthy human premolars were randomly divided into six groups. 1) Resin-modifed glass ionomer cement (RMGIC) without papain, 2) RMGIC with papain 8%, 3) RMGIC with papain 10%, 4) Composite resin (CR) without papain, 5) CR with papain 8%, 6) CR with papain 10%. The TBS was determined using a universal testing machine. Bond failure was classifed according to the ARI. The TBS data were analyzed with Kruskal-Wallis test followed by Mean Whitney tests with 5% of signifcance level. </span><strong><span class="fontstyle2">Results</span></strong><span class="fontstyle2">:</span><span class="fontstyle2"> </span><span class="fontstyle0">The mean of TBS(MPa) values of RMGIC groups are without papain (5.03 ± 1.52), papain 8% (4.79 ± 2.61), papain 10 (7.75 ± 1, 48). CR groups without papain (5.45 ± 1.23), papain 8% (2.30 ± 0.73), and papain 10% (4.84 ± 1.72) Bond failure was mainly classifed as score 1. The TBS values were statistically influenced by the application of papain and adhesive. </span><strong><span class="fontstyle2">Conclusion: </span></strong><span class="fontstyle0">The application of papain 10% before RMGIC cementation improves the tensile bond strength and could decrease the bond failure of the orthodontic bracket.</span> <br /><br /></p>