Objective To evaluate transportation (T) and centering ability (CA) of root canal preparations using continuous or reciprocating nickel-titanium endodontic files. Materials and Methods Ninety-six mesiobuccal root canals of mandibular first and second molars were randomly divided into 6 groups (n=16) according to the rotary file used: 1. ProTaper Next; 2. ProTaper Gold; 3. Mtwo; 4. BioRaCe; 5....

INTRODUCTION The aim of this study was to compare the changes that occur in the danger zone (DZ) after preparation of curved mesiobuccal (MB) canals of mandibular first molars with WaveOne instruments in two different movements [reciprocation (RCP) and counter-clockwise rotation (CCWR)] by means of cone-beam computed tomography (CBCT). METHODS AND MATERIALS MB canals of 30 mandibular molars w...

Introducción: los instrumentos endodóncicos usados retienen debris dentinario, lo que representa un riesgo biológico afecta su esterilización. Objetivo: evaluar con la técnica de espectroscopia plasmas inducida por láser (LIBS) limpieza NiTi tratados Nd:Yag. Material y métodos: se evaluaron ProTaper Next X2 (Dentsply Maillefer®, Ballaigues, Switzerland) WaveOne Gold Primary bajo microscopio est...

Objective: The aim of this study was to evaluate the effect different glide path files on amount apically extruded debris. Material and Methods: Sixty single-canaled mandibular premolars were accessed randomly divided into three groups (n= 20) according file used for glid creation; group A using Traverse file, B WaveOne Gold Glider, C stainless steel K file. All teeth then instrumented Reciproc...

O presente estudo avaliou comparativamente a capacidade de corte e resistência duas sequências instrumentação considerando diferença peso após o preparo do canal radicular simulado em blocos resina acrílica transparente com ângulo curvatura padronizado 45°. Os recursos foram submetidos ao máximo dez ciclos esterilização uso. pesados balança digital máxima precisão antes preparo, seguido da veri...

INTRODUCTION This study aimed to perform a rigorous sample standardization and also evaluate the preparation of mesiobuccal (MB) root canals of maxillary molars with severe curvatures using two single-file engine-driven systems (WaveOne with reciprocating motion and OneShape with rotary movement), using micro-computed tomography (micro-CT). METHODS AND MATERIALS Ten MB roots with single canal...