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. 2025 Jul 16;16(7):264.
doi: 10.3390/jfb16070264.

In-Vitro Assessment of Artificial Tooth Material Wear Behavior Using 3D Wear Analysis

Sıla Yelekçi  1 , Ayben Şentürk  2 , Funda Akaltan  2
Affiliations

In-Vitro Assessment of Artificial Tooth Material Wear Behavior Using 3D Wear Analysis

Sıla Yelekçi et al. J Funct Biomater. .

Abstract

Background: Artificial tooth wear impacts prosthesis durability and function; understanding material-antagonist interactions guides clinical choices.

Aim: This in-vitro study aimed to assess the wear behavior of isosit and nanohybrid composite resin artificial teeth when opposed to various antagonist materials using 3D volumetric wear analysis.

Materials and methods: Sixty specimens (n = 10 per group) were prepared from two artificial tooth materials and assigned to six antagonist combinations: isosit-isosit, isosit-nanohybrid composite, isosit-porcelain, nanohybrid composite-isosit, nanohybrid composite-nanohybrid composite, and nanohybrid composite-porcelain. Specimens were scanned before and after 600,000 chewing cycles using a structured-light 3D scanner. Volumetric wear was calculated by superimposing pre- and post-test scans. Data were analyzed using two-way ANOVA and Tukey's HSD test (α = 0.05).

Results: Porcelain antagonists produced the highest wear values (p < 0.05). No significant difference was found between isosit and nanohybrid antagonists (p > 0.05). Identical material pairings showed less wear, though differences were not statistically significant.

Conclusions: Porcelain as an antagonist increased wear risk. Using identical materials bilaterally, such as isosit-isosit or nanohybrid-nanohybrid, may help reduce artificial tooth wear in removable prostheses.

Keywords: abrasion; artificial teeth; chewing simulator; nanohybrid composite; two body wear.

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Conflict of interest statement

Sıla Yelekçi is employed by the company Align Technology. The remaining authors declare that the study was conducted in the absence of any commercial or financial relationships that could be construed as potential conflicts of interest.

Figures

Figure 1
Figure 1
The artificial tooth specimens embedded in acrylic holders, (a) The specimen positioned in the acrylic block with the aid of a parallelometer, showing the alignment of buccal and palatal cusps at the same level. (b) The aligned view of the buccal and palatal cusps in the acrylic block. (c) The mounted artificial tooth specimens loaded in the chewing simulator for dynamic loading.
Figure 2
Figure 2
(a) Image of the artificial tooth specimen in the 3D laser scanning device, (b) STL image of the specimen, (c) the model obtained before wear was considered as fixed, (d) the other model obtained after wear, (e) superimposition of pre- and post-wear models using VrMesh software, (f) the superimposed artificial tooth specimen with the acrylic holder, (g) the specimen after being separated from the acrylic holder, (h) deviation map showing the differences between maximum and minimum volume values and color-coded 3D deviation highlighting wear areas.
See this image and copyright information in PMC

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