AN IN VITRO ASSESSMENT AND COMPARISON OF PUSH OUT BOND STRENGTH OF DIFFERENT MATERIALS IN FURCATION PERFORATION REPAIR
*Dr. Pranav Gupta, Dr. Amit Kumar Khajuria, Dr. Sania and Dr. Anshul Bhardwaj
Aim: Perforations should immediately be repaired with a biocompatible material to seal the communication between perforation site and gingival sulcus. Hence, the present study aimed to assess and compare the push out bond strength of various furcation perforation material. Materials and methods: Forty-five extracted human mandibular first molars were used with their roots amputated 3 mm below the furcation. Furcation perforations of 1 mm diameter were prepared in each tooth. Three groups based on perforation repair material ProRoot MTA (Group I), BioAggregate( Group II) and IRM( Group III) were formed. The samples were then subjected to a compressive load of 5 KN at a cross head speed of 1 mm/min with a 0.8 mm diameter plugger via a universal testing machine for the push-out bond strength measurement. Results: No statistical significant difference was found between means of push out bond strength of these materials. In addition, Bioaggregate showed maximum push out bond strength. Conclusion: Although, no statistical significant difference was observed but Bioaggregate could be used as a preferable material for furcation perforation repair.
Keywords: Furcation, Bond strength, Repair.
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