Finite Element Analysis of Restored Principal Abutment in Free-End Saddle Partial Denture

Abstract

Ahmed Mahrous,1 Ebaa Alagha,1 Tariq Almutairi,2 Fahad Albishi,2 Ibrahim Alfayomi,3 Nawaf Rasheed3 1Restorative Department, Vision Colleges, Jeddah, Saudi Arabia; 2Internship Program, Vision Colleges, Jeddah, Saudi Arabia; 3Faculty of Engineering, King Abdul-Aziz University, Jeddah, Saudi ArabiaCorrespondence: Ebaa Alagha Email [email protected]: This study analyzed the stress distribution of restored principal abutments in free-end saddle partial dentures.Materials and Methods: The mandibular second premolar was modeled with class II cavity restored with composite resins (Tetric N Ceram and Charisma Smile). Finite element analysis (FEA) was used to examine the stresses under 200-N static load vertically and horizontally and the results were graphically illustrated in the form of von Mises stresses.Results: The von Mises stress distribution patterns of two different composite resins (Tetric N Ceram and Charisma Smile) were very similar in all modes of loading.Conclusion: Composite resins with a similar modulus of elasticity in class II cavities with occlusal rest seat preparation had similar stress distributions.Clinical Significance: Nanohybrid composite resin restorations may be a possible method for preparing abutments for receiving elements of the removable partial denture (RPD).Keywords: composite resin, finite element analysis, rest seat, RPD

Keywords

• composite resin
• finite element analysis
• rest seat
• rpd