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. 2025 May;17(Suppl 1):S504-S506.
doi: 10.4103/jpbs.jpbs_1741_24. Epub 2025 Apr 9.

Comparative Evaluation of Fracture Resistance in Pulpectomized Second Primary Molar Teeth Restored with Nanohybrid Composite Resin with and without Glass Fiber Reinforcement: An In vitro study

G Gayathri  1 , K Korath Abraham  1 , Ektah Khosla  1 , Arun R James  2 , Elza Thenumkal  1 , Joel Mathew  1
Affiliations

Comparative Evaluation of Fracture Resistance in Pulpectomized Second Primary Molar Teeth Restored with Nanohybrid Composite Resin with and without Glass Fiber Reinforcement: An In vitro study

G Gayathri et al. J Pharm Bioallied Sci. 2025 May.

Abstract

Introduction: This in vitro study evaluated fracture resistance in pulpectomized second primary molars restored with nanohybrid composite resin, comparing reinforcements using vertical and cross-pattern glass fibers.

Materials and methods: Sixty teeth were divided into four groups: intact teeth, composite-only restorations, and composite with cross or vertical fiber reinforcement.

Results: Vertical fiber-reinforced restorations achieved the highest fracture resistance (893.5 N ± 53.2), significantly outperforming composite-only and cross-pattern reinforcement.

Conclusions: Vertical fiber orientation provided superior stress distribution, making it an effective, esthetic alternative to traditional restorative techniques for pulpectomized primary molars.

Keywords: Fracture resistance; nanohybrid composite resin; pulpectomy.

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Conflict of interest statement

There are no conflicts of interest.

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