Comparative Evaluation of Different Post Materials on Stress Distribution in Endodontically Treated Teeth Using the...

Area of Science:

• Biomaterials Science
• Dental Materials Science
• Mechanical Engineering

Background:

• Post-endodontic restoration is crucial for tooth longevity.
• Finite element analysis (FEA) is a valuable tool for evaluating stress distribution in restored teeth.
• Understanding stress patterns associated with different post materials is essential for clinical decision-making.

Purpose of the Study:

• To systematically review and synthesize findings on stress distribution in endodontically treated teeth restored with various post materials using FEA.
• To provide evidence-based guidance for selecting the most suitable post material in clinical practice.

Main Methods:

• A systematic literature search was conducted on PubMed and Google Scholar (1997-2021).
• Twenty-two FEA studies met the inclusion criteria, utilizing various tooth models (maxillary central incisor, canine, mandibular premolar).
• Data extraction and analysis were performed using Rayyan bibliographic software.

Main Results:

• Glass fiber posts demonstrated lower stress induction in restored endodontically treated teeth, with stress concentrated at the cervical root third.
• Stainless steel and titanium posts exhibited higher stress concentrations at both cervical and apical root thirds.
• Prefabricated zirconia posts showed maximal stress concentration at the middle third of the root.

Conclusions:

• Different post materials significantly influence stress distribution in endodontically treated teeth.
• Glass fiber posts appear to be a favorable option due to lower stress induction.
• Material selection should consider the specific stress patterns and potential failure modes indicated by FEA.