Efficacy of Two Rotary Systems in Removing Gutta-Percha and Sealer from the Root Canal Walls

 INTRODUCTION: The aim of this in vitro study was to compare the efficacy of two retreatment rotary systems in removal of gutta-percha (GP) and sealer from the root canal walls with and without use of solvent. MATERIALS AND METHODS: Sixty single-canalled distal roots of mandibular molars were prepar...

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Detalles Bibliográficos
Autores principales: Dadresanfar, Bahareh, Mehrvarzfar, Payman, Saghiri, Mohammad Ali, Ghafari, Sedigh, Khalilak, Zohreh, Vatanpour, Mehdi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Iranian Center for Endodontic Research 2011
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3487511/
https://www.ncbi.nlm.nih.gov/pubmed/23130056
Descripción
Sumario: INTRODUCTION: The aim of this in vitro study was to compare the efficacy of two retreatment rotary systems in removal of gutta-percha (GP) and sealer from the root canal walls with and without use of solvent. MATERIALS AND METHODS: Sixty single-canalled distal roots of mandibular molars were prepared and root filled with gutta-percha and AH26. Each canal was randomly allocated to receive one of the retreatment techniques, Mtwo R or ProTaper. The groups were further divided into two subgroups: with or without the use of solvent. The cleanliness of canal walls was determined by stereomicroscope and scanning electron microscopy. RESULTS: The results showed that Mtwo R without the use of solvent was more efficient in material removal compared to ProTaper D (P<0.05). Most remnants were found in the apical third of the canals (P<0.05). CONCLUSION: Mtwo R seems to be an efficient rotary system for endodontic retreatment of root canal with GP.

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