Effect of Contemporary Root Canal Obturation Materials on the Structural Integrity of Treated Teeth
Abstract
The structural integrity of endodontically treated teeth is significantly influenced by the type of obturation material used during root
canal therapy. This study evaluated the effect of contemporary root canal obturation materials on the fracture resistance of treated teeth.
Extracted human teeth were instrumented, obturated with different materials—conventional gutta-percha with epoxy resin sealer,
bioceramic-based sealers, and thermoplasticized systems—and subjected to mechanical testing using a universal testing machine. The
results revealed that teeth filled with bioceramic sealers demonstrated superior fracture resistance compared to those obturated with
traditional gutta-percha systems. The enhanced mechanical stability observed can be attributed to improved bonding ability and the
bioactive sealing properties of contemporary materials. The findings suggest that the selection of modern obturation systems plays
a vital role in maintaining tooth strength and preventing structural failure after endodontic treatment. This study provides valuable
insight for clinicians aiming to optimize long-term treatment outcomes through evidence-based material selection.
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