Title
Comparative evaluation of fracture resistance in endodontically treated permanent mandibular first premolar restored using glass fiber posts and dentin posts: An ex vivo study
Authors
Mithila Mohan*, K. Nandakumar, R.P. Shanoj, Haseena Ummer, S.A.P. Mohammed Thalib & S.P. Anjitha
Affiliation
Department of Prosthodontics, Crown and Bridge, MES Dental College, Perinthalmanna, Malappuram, Kerala, India; *Corresponding author
Mithila Mohan - E-mail: mohanmithila95@gmail.com
K. Nandakumar - E-mail: drnandakumark@rediffmail.com
R.P. Shanoj - E-mail: shanojrp_27@yahoo.co.in
Haseena Ummer - E-mail: haseenahummer@gmail.com
S.A.P. Mohammed Thalib - E-mail: mohthal0003@gmail.com
S.P. Anjitha - E-mail: anjithastalin@gmail.com
Article Type
Research Article
Date
Received September 1, 2026; Revised September 30, 2026; Accepted
September 30, 2026, Published September 30, 2026
Abstract
It remains unknown whether restoring endodontically treated mandibular first premolars with dentin posts provides superior fracture resistance and more favorable failure modes compared to glass fiber posts. Therefore, it is of interest to compare the fracture resistance and mode of fracture of 24 endodontically treated teeth (ETT), human mandibular first premolars restored with CAD-CAM fabricated dentin posts or prefabricated glass fibre posts using universal testing and stereomicroscopic analysis. There was statistical indifference between the two groups in fracture strength (p = 1.000). The most frequent mode of failure in both groups was the failure of the luting cement, followed by adhesive failure at the dentin-cement interfaces and no catastrophic post or root fractures were noted. Thus, dentin posts and glass fibre posts showed similar biomechanical performance and are clinically acceptable for the rehabilitation of ETT.
Keywords
Biomimetic post systems, dentin post, endodontically treated teeth (ETT), fracture strength and glass fibre post
Citation
Mohan et al. Bioinformation 22(9): 6041-6045 (2026)
Edited by
Vini Mehta
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
