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Vol.26, No.1, 2026, pp. 28–31 |
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DIGITAL IMAGE CORRELATION ANALYSIS OF THE BOND STRENGTH BETWEEN PREFABRICATED ACRYLIC TEETH AND DENTURE BASE RESIN UNDER SIMULATED LOAD CONDITIONS Luka Župac1*
1) University of Belgrade, School of Dental Medicine, Clinic for Prosthodontics, Belgrade, SERBIA *email: lukazupac95@gmail.com , L. Župac https://orcid.org/0009-0007-4113-4864 ; A. Čairović https://orcid.org/0000-0001-8807-5426 ; I. Đorđević https://orcid.org/0000-0003-2695-4577 ; M. Perić https://orcid.org/0000-0003-3667-4253 ; D. Popović Antić https://orcid.org/0000-0002-2322-810X 2) University of Belgrade, Faculty of Mechanical Engineering, Belgrade, SERBIA M. Travica https://orcid.org/0000-0003-1156-6563 ; N. Mitrović https://orcid.org/0000-0001-9296-2669
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Abstract This study aims to investigate biomechanical behaviour of the bond between prefabricated acrylic teeth and heat-polymerised denture base resin under different loading angles, using 2D Digital Image Correlation method (2D DIC), a method that enables real-time, full-field analysis of displacement and deformation field. The experimental setup involves samples loaded at 45° and 90°, representing clinically relevant angulations that simulate forces encountered during mastication. A two-part positioning tool is developed via 3D printing to guarantee uniform samples positioning. Stochastic pattern is applied to each sample to enable 2D DIC method tracking. 2D DIC enables visualisation of displacement and von Mises strain fields, particularly in the critical regions of the tooth-resin interface. The results show differences in force, deformation, and displacement between samples angle loaded both at 90° and 45°. That suggests significant impact of loading angle and contact area between tooth and denture base. Keywords: • Digital Image Correlation (DIC) • dental bonding • acrylic resins • load angle • dental prosthesis, removable |
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full article (397 kB)
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