DOI: 10.4103/jcde.jcde_697_26 ISSN: 2950-4716

Biomechanical evaluation of horizontal intracoronal reinforcement strategies in endodontically treated teeth: An in vitro study

Rosary S. Joselin, Aruna Kumari Veronica, Anand V. Susila
Show PDF Cite

Abstract

Context:

Comparison of reinforcement strategies for root-filled teeth.

Aim:

Comparative evaluation of four conservative intracoronal reinforcement techniques on the fracture resistance and compressive stress of root canal-treated premolars.

Settings and Design:

Recently extracted human upper premolars were randomly divided into five groups ( n = 10): intact teeth (control), horizontal fiber-reinforced composite (FRC) post, horizontal dentin post, polyethylene fiber reinforcement (Ribbond), and pre-impregnated glass fiber reinforcement (Interlig). Excluding the control group, mesio-occluso-distal cavities were prepared in the other groups, root canals were treated, reinforcement was performed according to the assigned techniques, and restoration was done with bulk-fill composite resin. Fracture resistance and compressive stress were measured using a universal testing machine after thermocycling.

Statistical Analysis Used:

Fracture resistance and compressive stress were analyzed using one-way analysis of variance (ANOVA) and Tukey’s post hoc test (α =0.05).

Results:

Significant differences were found between the groups ( P = 0.008). The control and pre-impregnated glass fiber groups showed the highest and similar values of compressive stress. The horizontal FRC post group showed the lowest values, which were significantly inferior ( P < 0.05). The horizontal dentin post and polyethylene fiber groups performed better than the horizontal FRC post group.

Conclusions:

Pre-impregnated glass fiber, horizontal dentin post, and polyethylene fiber reinforcement exhibited biomechanical performance equivalent to intact teeth, while horizontal FRC posts demonstrated inferior performance.

More from our Archive