Mehdi Abdulhadi Mehdi

Department of orthodontics, College of Dentistry, Iraq


  • Research   
    Effect of Different Bonding Systems on Shear Bond Strength of Buccal Tubes Bonded to Various Restorative Materials: An In Vitro Study
    Author(s): Mohammed Razzaq Hussein*, Mehdi Abdulhadi Mehdi and Abeer Basim Mahmood

    Introduction: Orthodontic bonding to restorative surfaces poses a clinical dilemma as it does not follow a single universally accepted procedure. Aims: This study aimed at evaluating shear bond strength (SBS) and adhesive remnant index (ARI) of buccal tubes bonded to different restorative surfaces using three bonding systems. Materials and Methods: The sample included 54 restorative surfaces divided into three groups consisting of amalgam, composite and feldspathic porcelain (n=18), randomly divided into three bonding subgroups: A, B and C (n=6). In subgroup A, conventional bonding was conducted using Transbond XTTM. In subgroups B and C, Assure Plus® and ScotchbondTM were used, respectively. Six human molars were bonded with standard acid-etching technique and served as control. All specimens were thermo cycled 5000 times between 5°C and 55°C before SBS testing. Bond fail.. Read More»

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