Introdução: Lima ProtaperUltimate foi uma vantagem inovadora para o profissional, porque permite tratar ampla variedade de desafios anatômicos na prática clínica, esse sistema também que clínico realize preparos canais minimamente invasivos, mais conforme as outras limas nem todas são 100% boas, pois chega um momento operador está usando a lima e mesmas irá ter fraturas. Objetivo: Conhecer os b...

AIMS This study aimed to compare the frequency of ProTaper rotary instrument fracture with rotary (conventional) and hybrid (rotary and hand files) canal preparation techniques. Secondary objectives were to determine whether there was an association of ProTaper file fracture with the canal curvature and to compare the mean time required for canal preparation in the two techniques. METHODS An ...

AIM To evaluate the incidence of apical crack initiation during canal preparation with stainless steel K-files and hand protaper files (in vitro study). MATERIALS AND METHODS Sixty extracted mandibular premo-lar teeth are randomly selected and embedded in an acrylic tube filled with autopolymerizing resin. A baseline image of the apical surface of each specimen was recorded under a digital mi...

AIM  To evaluate morphological changes to the major foramen after overinstrumentation with ProTaper Universal and ProFile Vortex Ni-Ti rotary instruments. METHODOLOGY Twenty-eight mesiobuccal canals of maxillary and mandibular first molars were divided into two groups of 14 canals each. The root canals were prepared with ProTaper Universal or ProFile Vortex instruments. ProTaper and Vortex in...

AIM To assess and compare the shaping potential of manual NiTi K-files and Rotary ProTaper instruments in narrow canals using CT. OBJECTIVE To assess the shaping potential of manual NiTi K-files and Rotary ProTaper and analyzing the final outcome of shaped canals using CT and determining different variables, like • Working time • Change in volume • Change in cross-sectional area. MATERIALS ...

Aim: The aim of this systematic analysis was to assess the prevalence dentinal microcracks at various levels (3, 6, and 9 mm from apex) after using instruments made with conventional, R-Phase, M-Wire NiTi alloys SAF system. Materials Methods: Electronic searches were conducted in databases Embase, Cochrane Library, Scopus, PubMed, Web Science. To arrange search methods, “MeSH” terms and/or keyw...

AIM To evaluate the efficacy of the ProTaper Universal rotary retreatment system for gutta-percha (GP) removal from root canals. METHODOLOGY Root canals of 60 extracted human maxillary anterior teeth were prepared and filled with laterally condensed GP and AH Plus sealer. Teeth were divided into three groups: group A--GP removal completed with the ProTaper Universal rotary retreatment system ...