Abdelrahman, M., Bahgat El Mahdy, M., Mohammed El Masry, S., El Sayed, M. (2022). Photoelastic Stress Analysis for Mandibular Implant Supported Overdenture with Two Types of Denture Base Materials: A Comparative in vitro Study. Dental Science Updates, 3(1), 33-38. doi: 10.21608/dsu.2022.88385.1074
Mohamed Abdelrahman; Moataz Mostafa Bahgat El Mahdy; Sayed Mohammed El Masry; Mohammed Ezzat El Sayed. "Photoelastic Stress Analysis for Mandibular Implant Supported Overdenture with Two Types of Denture Base Materials: A Comparative in vitro Study". Dental Science Updates, 3, 1, 2022, 33-38. doi: 10.21608/dsu.2022.88385.1074
Abdelrahman, M., Bahgat El Mahdy, M., Mohammed El Masry, S., El Sayed, M. (2022). 'Photoelastic Stress Analysis for Mandibular Implant Supported Overdenture with Two Types of Denture Base Materials: A Comparative in vitro Study', Dental Science Updates, 3(1), pp. 33-38. doi: 10.21608/dsu.2022.88385.1074
Abdelrahman, M., Bahgat El Mahdy, M., Mohammed El Masry, S., El Sayed, M. Photoelastic Stress Analysis for Mandibular Implant Supported Overdenture with Two Types of Denture Base Materials: A Comparative in vitro Study. Dental Science Updates, 2022; 3(1): 33-38. doi: 10.21608/dsu.2022.88385.1074
Photoelastic Stress Analysis for Mandibular Implant Supported Overdenture with Two Types of Denture Base Materials: A Comparative in vitro Study
1Removable prosthodontics department,faculty of dentistry, suez canal university, ismaillia, egypt
2Professor of Prosthodontics Faculty of Dentistry, Suez Canal University.
3Assistant Professor of Prosthodontics Faculty of Dentistry, Suez Canal University.
Abstract
Introduction: Different denture base material properties affect stress distribution in different ways around Prosthetic abutments and surrounding bone, as well as extent of bone remodeling. Aim: The purpose of this in vitro study is to investigate the distribution of stresses around a four telescopic dental implants supporting structure induced by two types of mandibular implant supported over denture base materials (acrylic resin and karadent dentures) using photoelastic analysis. Materials and methods: Ten telescopic mandibular implant overdentures had been constructed on an epoxy educational resin cast and according to the used denture base material were divided into two groups. For the first group: Five telescopic mandibular implant overdentures of Semirigid microcrystalline polymer denture base material (karadent). For the second group: The same but with conventional heat cured denture base material. For both groups models successive loads (20,40,60,80,100 newton) were applied using photo elastic stress analysis machine by using metal plate fixed at the lower first molar region bilaterally then stresses were recorded and analyzed. Results: the acrylic resin mandibular overdenture denture base material showing an increasing the mean stress value around implant supporting structure than the karadent one. Conclusion: The use of semi-rigid microcrystalline polymer dentures demonstrates favorable stress distribution more than the conventional heat cured dentures.
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