Objective: Pulptomy and pulpectomy usually are the most common techniques for pulp therapy in primary teeth. Despite the relative ease of performing these techniques, iatrogenic errors such as furcal perforation may occur. MTA and Biodentine were selected to test their ability to repair the furcal perforation in primary molars. Subjects and Methods: thirty patients with thirty accidently furcally-perforated primary molars discovered and sealed immediately on the same visit with either Biodentine or MTA, then completed by conventional pulp therapy treatment either by pulptomy or pulpectomy. The trated primary molars were then followed up clinically and radiographically for 12 months. Result: both materials showed high success rates, the first group of MTA showed 100% success, while the second group of Biodentine showed (93.3%) success with no significant difference (p= 1.000). Conclusion: MTA and Biodentine can successfully be used in treatment of iatrogenic recent furcal perforations that may occur during pulpotomy in primary molars.
Objective:The purpose of the current study was to evaluate the fracture resistance of pulpotomized primary molars restored using hybrid ceramics endocrowns and prefabricated zirconia crowns. Materials and methods: Eight freshly extracted human mandibular second primary molars underwent pulpotomy procedure. Teeth were randomly divided into two groups according to the type of coronal restoration: Endocrown (EC) group (n=4) restorations made of CAD/CAM Milled Hybrid Ceramic blocks (VITA ENAMIC), and Zirconia crown (ZC) group (n=4) restored by prefabricated zirconia crowns (Nu Smile). A universal testing machine was used to evaluate fracture resistance of tested specimens. Results: There was no statistically significant difference (P=0.074) in the mean fracture resistance for EC group (1968.6±985.4) compared to the mean fracture resistance for the ZC group (890.9±142.5). Conclusion: Endocrowns can be used as a treatment option in pulpotomized primary molar teeth. VITA ENAMIC endocrowns can withstand the maximum intraoral masticatory force in the primary molars.
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