Fragment reattachment technique viable treatment option for Complicated Crown Fractures with Debonding Risk: Study
Researchers have found in a new study that fragment reattachment technique is a viable method for managing complicated crown fractures, though fracture lines closer to the tooth neck raise debonding risk. Glass fiber-reinforced posts with dual-cure resin (GD) showed superior stress performance in experimental testing compared to other adhesive systems.
The study evaluated different reattachment approaches in simulated crown fractures, examining bond strength, fracture resistance, and failure modes under load. Findings showed that while reattachment preserved aesthetics and tooth structure, the risk of debonding increased when fractures occurred near the cervical region, where stress distribution is more complex. Stress analysis further indicated that GD reinforcement provided better mechanical stability, reducing the likelihood of secondary failure. This suggests that material selection plays a critical role in improving long-term success rates of fragment reattachment.
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