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A bstract Background and objectives Fragment reattachment procedure provides conservative treatment option when an intact fractured fragment is available. Rewetting of fractured fragment before reattaching has shown better bond strength of attached fragment. Therefore, fracture resistance of reattached fractured fragment with hydration and without hydration was evaluated and compared. Materials and methods Ellis class II fracture was induced in selected and coded 60 extracted maxillary central incisors using a custom-made-wise and assigned into group I and group II (without hydration and with hydration) and both the groups were further divided into two groups (1 week and 3 months). In group I, fractured fragments were reattached after bench-drying for 24 hours. In group II, fractured fragments were reattached after hydrating for 1 hour following bench-drying for 24 hours. Composite (Filtek Z350 XT, Universal Restorative, 3M ESPE) was used to reattach the fractured fragments. Reattached fractured fragments were stored in artificial saliva for 1 week and 3 months and subjected to fracture resistance test using Universal Testing Machine. The data obtained were tabulated and statistically analyzed. Results Fracture resistance in hydration samples was higher than without hydration at the end of 1 week and 3 months statistically. Fracture resistance of fractured fragment at the end of 3 months was higher in both with hydration and without hydration but was not significant with hydration. Conclusion Hydration of fractured fragment before reattachment procedure has shown better fracture resistance and improved further after storing in artificial saliva for 3 months. How to cite this article Suresh M, Mallikarjun SB, Babu G, et al. Fracture Resistance of Reattached Hydrated Fragment of Fractured Incisors. Int J Clin Pediatr Dent 2020;13(5):476–480.

Platelet-rich fibrin (PRF) is a fibrin matrix in which platelet cytokines, growth factors, and cells are trapped and may be released after a certain time and that can serve as a resorbable membrane. It can be obtained from blood with the help of a simple process. PRF is basically a concentrate of growth factors that promote wound healing and regeneration, which is used in various disciplines of dentistry to repair various lesions and regenerate dental and oral tissues. Although the use of PRF is well-documented, its use in pediatric dentistry remains unexplored, due to its restrictions and on account of the fact that it is a blood-derived product. PRF has been used globally to enhance tissue healing. This article provides an insight into the use of PRF in pediatric dentistry, its benefits, limitations, and recommendations.

AIM: This study was carried out to estimate the concentrations three microelements in enamel of deciduous normal and carious teeth using atomic emission spectrometry. METHODS: A total of 80 deciduous molar teeth indicated for extraction  from children between the age group of 7-13 yrs. were taken for this study. The specimens were divided into four groups and the samples  were prepared using centrifuge flotation technique. They were analyzed for Manganese, Strontium and Zinc using inductively coupled plasma-atomic emission spectroscopy. RESULTS: This study shows that  sound enamel contains more of strontium when compared to the carious enamel. Carious enamel contains more of manganese, and zinc when compared to the normal enamel. Elements zinc and strontium occur in high concentrations, whereas elements manganese occur in low concentrations in enamel. The concentrations of elements  manganese, strontium and zinc does not vary in relation to sex of individual. CONCLUSION: The microelements strontium and zinc are present in high concentration. Further  studies are necessary to see their potential in mineralization and anticariogenic process.