Efficacy of two rotary systems in removing gutta-percha and sealer from the root canal walls

Autor: Bahareh Dadresanfar, Payman Mehrvarzfar, Mohammad Ali Saghiri, Sedigh Ghafari, Zohreh Khalilak, Mehdi Vatanpour
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Iranian Endodontic Journal, Vol 6, Iss 2, Pp 69-73 (2011)
Druh dokumentu: article
ISSN: 1735-7497
2008-2746
Popis: 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 & 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
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