Osama S. Gad EI-Hak And Nagwa M. Khattab,

Objective: The Current Study Evaluates The Reciprocal WaveOne Gold Single-file System Regarding Clinical And Radiographic Success Rates In Pulpectomy Of Primary Molars. Methods. This Double Blind Randomized Clinical Trial Was Carried Out On 70 Primary Molars On 60 Children In The Age Group From 4 To 7 Years. The Teeth Selected For This Study Were Randomly Assigned Into 2 Groups According To The Used Endodontic Preparation System. Group I: 35 Primary Molars Were Instrumented With WaveOne Gold Reciprocating Single-file System. Group II: 35 Primary Molars Were Instrumented With Stainless Steel K-files. All Teeth Were Evaluated Clinically And Radigraphically For 12 Months With Periodic Recall At 3, 6,12 Months.Results. WaveOne Gold Single-file System Exhibited Higher Overall Success Rate Over Manual Instrumentation, However, The Difference Between Groups Was Not Statistically Significant (p>0.05). Conclusion. Single-file Systems Are Promising Instruments That Have The Power To Be An Alternative For Manual Instrumentation In Primary Molar Pulpectomies.