Stress Distribution in Endodontic Post-Retained Teeth
Author Information
Author(s): Garhnayak Lokanath, Parkash Hari, Sehgal D. K., Jain Veena, Garhnayak Mirna
Primary Institution: All India Institute of Medical Sciences, New Delhi
Hypothesis
The study aims to analyze the stress distribution in endodontically treated maxillary central incisors restored with various post-core systems and assess the benefit of ferrule design.
Conclusion
Incorporation of ferrule offered some degree of stress reduction in nonmetal post, but increased stresses within cervical dentin.
Supporting Evidence
- Ferrule design did not reduce stress values for titanium and nickel-chromium posts.
- Ferrule showed some stress reduction in fiber-reinforced composite resin posts.
- Nickel-chromium cast post-core transmitted the least amount of stresses to the dentin.
Takeaway
This study looked at how different types of tooth posts affect stress when chewing, finding that ferrules can help reduce stress in some cases but not all.
Methodology
Finite element analysis was used to create models of maxillary central incisors with different post-core systems and ferrule designs, applying a static load of 100 N in three directions.
Limitations
The study is limited to a finite element analysis and may not fully replicate real-life conditions.
Digital Object Identifier (DOI)
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