Open AccessORTHODONTIC BRACKETS
Author(s) -
Muhammad Azeem,
Arfan Ul Haq,
Javed Iqbal
Publication year - 2018
Publication title -
the professional medical journal/the professional medical journal
Language(s) - English
Resource type - Journals
eISSN - 2071-7733
pISSN - 1024-8919
DOI - 10.29309/tpmj/2018.25.05.307
Subject(s) - bracket , diamond , composite number , dentistry , medicine , universal testing machine , orthodontics , composite material , materials science , structural engineering , engineering , ultimate tensile strength
Bracket bonding on filled tooth surfaces is sometimes requiredin clinical orthodontic practice. The objective was to compare mean shear bond strength(SBS) of metal brackets on diamond bur roughened versus no treatment composite surfaces.Study Design: In Vitro, Comparative study. Period: January 2017 to October 2017. Setting:Orthodontic Department, Faisalabad Medical University. Materials & Methods: 30 extractedhuman premolars were used. They were randomly divided into two groups of 15 teeth. In group-I,metal brackets were bonded to composite with no surface treatment. In group-II, brackets werebonded after roughening composite surface with diamond bur. SBS was measured usinguniversal testing machine. Results: SBS of metal brackets bonded with no surface treatmentwas significantly lower than diamond bur roughened group. Conclusion: Composite surfacetreatment with diamond bur roughening increased shear bond strength of orthodontic brackets.