Akademik Veri Yönetim Sistemi
3rd International Congress of Contemporary Pediatric Dentistry, İstanbul, Türkiye, 15 - 17 Eylül 2023, cilt.4, sa.1, ss.12, (Özet Bildiri)
Aim: Uncomplicated crown fractures constitute a large proportion of trauma-related visits to dentists. In uncomplicated crown fractures, the International Association of Dental Traumatology recommends reattaching the crown fragment to the tooth as much as possible rather than restoring the tooth. However, there is no consensus on rehydration of dehydrated tooth fragments after trauma. Therefore, the aim of this study was to investigate the effect of rehydration on the bond strength of traumatized tooth fragments.
Methods: Forty intact bovine mandibular incisors of similar size and without any defect were included. The teeth were randomly divided into four groups: Group 1, sound teeth with no fracture (control group); Group 2, fractured teeth with no rehydration (dehydrated for 24 hours); Group 3, fractured teeth with rehydration (rehydrated in distilled water for 15 minutes); Group 4, fractured teeth restored with composite resin restoration. Fracture resistance was tested in a universal testing machine. The data were analyzed using one-way ANOVA and Tukey HSD tests with a significance level was set at 5%.
Results: The intact tooth without any fracture (controls) exhibited the highest fracture strength scores (252 ± 9.2 N), while the group with the broken tooth fragment reattached without rehydration showed the lowest fracture strength values (51 ± 8.2 N). Notably, the fracture strength of the reattached tooth fragment after rehydration (110.8 ± 9.2 N) was higher compared to when the tooth was restored with composite resin (66.3 ± 4.7 N).
Conclusion: The rehydration process yielded superior outcomes in the fragment reattachment procedure. Furthermore, reattaching the rehydrated tooth fragment demonstrated better fracture strength values when compared to restoring the tooth using composite resin.