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ORIGINAL RESEARCH
Year : 2021  |  Volume : 13  |  Issue : 4  |  Page : 378-385

Influence of weather in Saudi Arabia on mechanical properties of maxillofacial elastomeric materials: An in vitro study


1 Department of Prosthetic Dental Sciences, College of Dentistry, Jouf University, Sakakah 42421, Jouf Province, Saudi Arabia
2 Department of Prosthetic Dental Sciences, College of Dentistry, Jouf University, Sakakah 42421, Jouf Province, Saudi Arabia; Fixed Prosthodontics Department, Tanta University, Tanta, Egypt
3 Prosthodontic Unit, School of Dentistry, International Medical University (UMI), Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 5700, Malaysia
4 Department of Restorative Dentistry, School of Dental Medicine, University of Nevada, Las Vegas, NV, USA

Correspondence Address:
Dr. Mohammed A Mousa
Department of Prosthetic Dental Sciences, College of Dentistry, Jouf University, Sakakah 42421, Jouf Province.
Saudi Arabia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JIOH.JIOH_30_21

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Aim: The aim of this article was to analyze the influence of Saudi Arabia climate on the mechanical characteristics of two room-temperature (RV)- and heat-temperature-vulcanized (HV) medical silicone materials. Materials and Methods: In this in vitro study, 160 specimens of four different elastomeric materials, two RV (A-2000 and A-2186) and two HV (TechSil S-25 and Cosmesil M-511), were exposed to natural weather of Jouf Area in Saudi Arabia for 6 months. The mechanical tests, including tear resistance, tensile strength, and percentage of elongation, were performed using a universal testing machine. A t-test and analysis of variance followed by a post hoc test with α<0.05 were used to analyze the results. Results: The weather statistically influenced the mechanical properties of the silicone materials. A-2000 showed the highest tear resistance (37.34 ± 2.36, P < 0.05). TechSil S-25 showed the highest tensile strength (57.34 ± 1.92, P < 0.05) and percentage of elongation (888.20 ± 13.83, P < 0.05). The least tensile strength and percentage of elongation were found in Cosmesil M-511 among all test specimens (P < 0.05). Conclusion: After 6 months of natural weathering in hot and dry climates, A-2000 exhibited the highest tear strength values among all test specimens, whereas TechSil S-25 achieved the best results for tensile strength and percentage of elongation.


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