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Evaluation Of An Experimental Screw-Retained Retrievable Crown Versus Conventional Crown Design, Mohammad M. Rayyan, Ahmed Naguib M Hussien, Hanan A. Naguib, Hiba A. Makarem
Evaluation Of An Experimental Screw-Retained Retrievable Crown Versus Conventional Crown Design, Mohammad M. Rayyan, Ahmed Naguib M Hussien, Hanan A. Naguib, Hiba A. Makarem
BAU Journal - Creative Sustainable Development
Statement of problem: Removing cemented crowns is usually a complicated procedure that may lead to irreversible damage to the tooth/crown and mostly necessitate remake of crown with added effort for both patient and clinician. Purpose: This in-vitro study evaluated an experimental two-component, screw-retained retrievable crown design in comparison to the conventional design. Materials and methods: A total of 120 extracted maxillary 2nd premolars received root canal treatment and were divided into two groups (n=60 each) according to the crown design they will receive. Gp CC received a threaded modified post, a composite core and a metal coping, while Gp RC …