Abou Bakr Hosam Hashem

Dental Department, Research institute of Ophthalmology, Giza, Egypt


  • Research   
    Stresses Induced in Dental Implant Retaining Screw before Tightening
    Author(s): Mohamed Tharwat Hamed*, Hisham Abdullah Mously, Abou Bakr Hosam Hashem and Ghada Hussein Naguib

    Introduction: The tightening of the retaining screw helps in the insertion of implant at the mandible of first molar. Moreover, the calculation of the external loads acting on the screw head during its tightening and release need to be devised. Aims: The study aims to predict the fatigue life of a retaining abutment screw used in dental implant. Material and Methods: A typical straumann implant, inserted in place of missing first mandible molar was selected. 3D finite element stress analysis tool was used to evaluate the normal occlusion between the restoration crown and the opposing maxillary tooth. The mastication force acting mutually on the two teeth was simulated during the time of the occluding phase of the chewing process. Results and Discussion: The fatigue damage parameter .. Read More»

    Abstract HTML PDF