Mechanical resistance of a mandibular first molar under the influence of different endodontic access cavity design: a 3D finite element analysis study

Arıcan B., GÜNDOĞAR M., Uslu G., Özyurek T.

Computer Methods in Biomechanics and Biomedical Engineering, 2025 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2025
  • Doi Number: 10.1080/10255842.2025.2457124
  • Journal Name: Computer Methods in Biomechanics and Biomedical Engineering
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, Biotechnology Research Abstracts, Compendex, EMBASE, INSPEC, MEDLINE
  • Keywords: Caries-driven access cavity, endodontic access cavity, Finite element analysis, mandibular molar, truss cavity
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

Biomechanical properties of a mandibular first molar with different cavity designs [traditional access cavities (TEC-I & TEC-II), ninja access cavity (NEC), conservative access cavity (CEC), truss access cavity (Tr-EC), caries-driven access cavity (Cd-EC), caries-driven truss access cavity (Cd-TrEC)] were compared using finite element (FE) analysis. Models were subjected to three different loads. The highest stress distribution was observed on the enamel surface of the Cd-EC design and the dentin surface of the TEC-II. The stress was mainly concentrated on the lingual root surfaces and in the pericervical area. Enlarging the access cavity significantly increased stress distribution on enamel and dentin.