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. test, 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". test, 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', test, 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. test, 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

Dental Science Updates
Article 5, Volume 3, Issue 1, March 2022, Pages 33-38    PDF (806.87 K)
Document Type: Original Article
DOI: 10.21608/dsu.2022.88385.1074
Authors
Mohamed Abdelrahman* 1; Moataz Mostafa Bahgat El Mahdy2; Sayed Mohammed El Masry2; Mohammed Ezzat El Sayed3
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.
Keywords
Photoelastic Stress Analysis; karadent denture base material; telescopic overdentures
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