• DR.SATHISH ABRAHAM
• DR.ABHIJIT PANDAGALE
• DR.PRADNYA NAGMODE
• DR.NITIN LOKHANDE
• DR.LALIT PATIL

Uncomplicated crown fractures, affecting only enamel and dentin, are common in children, representing 28%-44% of dental traumas. Treatment focuses on restoring esthetics and function, with options like composite restorations or fragment reattachment. Reattaching a viable tooth fragment is favored for preserving natural appearance and wear characteristics. Advances in adhesive dentistry have enhanced reattachment predictability, offering superior esthetics and conservation of tooth structure. This study evaluates the fracture resistance of various reattachment techniques using nanohybrid composite resin. The study included 30 sound, caries-free maxillary central incisors, sectioned to simulate uncomplicated fractures. Specimens were divided into three groups based on reattachment techniques: internal dentinal groove, enamel bevel, and modified saucerization. Restorations involved etching, adhesive application, and nanohybrid composite resin buildup, followed by light curing. Fracture resistance was tested using a Universal Testing Machine. The results of our study indicated that the modified saucerization technique exhibited the highest fracture resistance, with a mean value of 27.92 ± 2.32 KgF. This was followed by the internal dentinal groove group, which had a mean fracture resistance of 21.72 ± 1.99 KgF. The enamel bevel group demonstrated the lowest fracture resistance, with a mean of 12.94 ± 2.20 KgF. The differences in fracture resistance among the three groups were statistically highly significant (p < 0.001), indicating the superior performance of the modified saucerization technique in reinforcing reattached fragments. The findings suggest that modified saucerization provides the best reinforcement due to its enhanced bonding area and force distribution, while the enamel bevel technique may be less effective due to potential misalignment and reduced bonding strength. To validate these results and optimize clinical outcomes, further clinical trials are necessary.

Enamel bevelling, fracture reattachment, internal dentinal groove, nanohybrid composite resin, modified saucerization, uncomplicated coronal fracture

"Comparative evaluation of fracture resistance of reattached anterior tooth fragment using different re-attachment techniques: an in vitro study", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 12, page no.d418-d422, December-2024, Available :http://www.jetir.org/papers/JETIR2412349.pdf

"Comparative evaluation of fracture resistance of reattached anterior tooth fragment using different re-attachment techniques: an in vitro study", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 12, page no. ppd418-d422, December-2024, Available at : http://www.jetir.org/papers/JETIR2412349.pdf