2nd International Conference on Chemo and Bioinformatics ICCBIKG 2023 (363-366)
АУТОР(И) / AUTHOR(S): Ivana R. Kantardžić, Bojana D. Ramić, Karolina Vukoje, Tijana Z. Lainović, Darko M. Vasiljević, Larisa Blažić
Е-АДРЕСА / E-MAIL: ivana.kantardzic@mf.uns.ac.rs
DOI: 10.46793/ICCBI23.363K
САЖЕТАК / ABSTRACT:
Restoring a tooth with extensive loss of biological structures is a major challenge for any clinician, as it affects biomechanical properties and survival rate of the restored tooth. Using numerical simulation with finite element analysis (FEA), this study aimed to determine the influence of two types of extensive cavities (MOD – mesio-occlusal-distal cavity, MODBP – mesio-occlusal-distal cavity with buccal and palatal cusp reduction) and two different restorations (CRd-direct composite restoration, CRi-indirect composite restoration) on the stress distribution in 3D tooth models. First, a 3D model of an intact tooth was generated based on the CT scans of an extracted maxillary premolar. Then, four additional models were created with a combination of each cavity and restoration type. All 3D tooth models were subjected to a static occlusal load of 200 N to simulate masticatory forces. The results showed that CRi with MODBP cavity provides the most favourable stress distribution in the remaining tooth structures, thus suggesting that cusp reduction and a restorative material with a higher modulus of elasticity biomechanically protect the remaining tooth structures.
КЉУЧНЕ РЕЧИ / KEYWORDS:
finite element analysis, stress distribution, tooth, composite restoration
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