Mehdi Abdulhadi Mehdi

Department of laser/Dentistry, Al Elweah specialized dental center , Iraqi ministry of health, Baghdad, Iraq

Publications

  • Research Article   
    Evaluation of Shear Bond Strength of Metal Orthodontic Brackets to Composite Using Different Surface Conditioning Methods
    Author(s): Ola Ali Mahmood*, Mehdi Abdulhadi Mehdi and Asseel Yousif Rashid

    Introduction: The rise of adult patient looking for orthodontic treatment that more likely to have existing restoration leads to increase in bonding of brackets to composite restoration. To ensure clinically optimum bond strength of brackets to composite, researchers are comparing and evaluating several surface treatment approaches. Aims: The study's purpose is to assess the effect of different mechanical surface conditioning approaches (no preparation, diamond bur grinding, sandblasting with Al2O3, Er, Cr; YSGG laser irradiation) on Shear Bond Strength (SBS) of stainless steel orthodontic brackets to composite restoration. Materials and methods: In this in vitro study 48 Composite discs were constructed (D=10 mm, H=4 mm). The samples were divided into two groups (n=24), one group underwent thermocycling (5000 cycle), then each grou.. Read More»

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