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CSME 2023/05
Volume 44 No.2
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193-201
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Wear Behavior of Dental Restorative Materials
Sadri Şen a, Hamid Zamanlou a, Filiz Karabudak b and Ebru Emine Şüküroğlu b
aDepartment of Mechanichal Engineering, Ataturk University, Erzurum 25240, Republic of Türkiye
bDepartment of Mechanichal Engineering, Gumushane Univer-sity, Gumushane 29100, Republic of Türkiye
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Abstract:
Gradual wear of opposing teeth is a normal phenomenon in human dentition. There is a need for quality dental restorative materials to repair or replace natural teeth to ensure a higher quality of life through dental health. One of the main physio-logical mechanism that exists in dental materials during normal muscle function is called abrasion. There are two types of that in teeth which are com-mon; Two-body and three-body. If the teeth are contacted directly, it is referred to as two-body abrasion. However, when there is abrasive slurry-like food between the teeth, this abrasive is called to be three-body abrasive. Several types of materi-als are available in current dentistry for teeth resto-ration and replacement, and new materials are being promoted every year.Dental specialists need to understand the wear mechanisms of these new types of dental restorative materials, alone or in combination with either enamel or other dental restorative material. The present study evaluates the abrasive resistance of three restorative materials groups: direct compo-sites, indirect composites, and ceramics. To define the resistance of the wear, the authors then perform a micro-wear test on chosen materials.The results show that the wear mechanism is abrasive due to its low hardness compared to zirconia ball. The wear path in the nanohybrid (Grandio®, 87s% w/w (71s% volume) inor-ganic nanohybrid filler, BisGMA, UDMA, TEGDMA) sample was smooth and without particles. In this study wear FEM analysis calcu-lated for all models and the answers compared with experimental data.
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Keywords: Wear, New generation dental restora-tive material, FEM analyzing
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©
2023
CSME , ISSN 0257-9731
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