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...

INTRODUCTION This study compared the cleaning efficiency of Mtwo, Race and Medin Nickel-Titanium (NiTi) rotary instruments. MATERIALS AND METHODS Sixty mandibular molar mesial roots were selected with angle curvatures between 25-35 degrees and divided into three groups; each containing 20 teeth. Canals were prepared with the rotary files and irrigated with 2.5% NaOCl solution after each instr...

INTRODUCTION Disinfection and subsequent obturation of the root canal space require adequate mechanical enlargement of the canals. The purpose of this in vitro study was to compare the shaping ability of Mtwo, RaCe and Medin rotary instruments during the preparation of curved root canals. MATERIALS AND METHODS Sixty mesiobuccal root canals of mandibular molars with severe curvatures between 2...

introduction: the penetration depth of irrigating solutions in dentinal tubules is limited; consequently, bacteria can remain inside dentinal tubules after the cleaning and shaping of the root canal system. therefore, new irrigation systems are required to increase the penetration depth of irrigating solutions in dentinal tubules. methods: a comparative study regarding the penetration depth of ...

BACKGROUND The aim of the present study was to evaluate the cyclic fatigue resistance of Mtwo NiTi rotary instruments after clinical use by 1 experienced and 1 novice operator. MATERIAL/METHODS Cyclic fatigue testing of instruments was performed on tapered artificial canals with a 5 mm radius of curvature and 60° angle of curvature. Twenty Mtwo instruments for each size were selected and divid...

INTRODUCTION Due to the importance of apical transportation during root canal preparation, the aim of the current study was to use cone-beam computed tomography (CBCT) to assess the extent of apical transportation caused by ProTaper and Mtwo files. METHODS AND MATERIALS Forty extracted maxillary first molars with 19-22 mm length and 20-40 degrees of curvature were selected. The mesiobuccal ca...

The purpose of this investigation was to compare centring ratio of ProTaper and Mtwo rotary systems. 60 mandibular molar teeth which had 25, 30 and 35 degree curvature in mesio-buccal root canal were used. Group 1 had 25°, Group 2 had 30°, and Group 3 had 35° curvatures. The roots were sectioned horizontally at 2 mm away from the apex. The apical region was then observed under a stereo-microsco...

1. Salles AA, Cord CB, Sonnemann TS, at al. Comparative analysis of the diameter MTwo® system gutta-percha points in relation to their corresponding instruments. RSBO (Online). 2013;10(1):49–55. Google Scholar

OBJECTIVE To evaluate root canal enlargement following mechanical shaping using 2 nickel titanium rotary systems. MATERIAL AND METHODS Forty single-rooted teeth were immersed in resin and sectioned perpendicular to the long axis at 4, 8, and 12 mm from the apex. Digital capture of sections was performed before and after canal instrumentation using Mtwo and BioRace instruments. The area increa...

O objetivo da presente investigação foi avaliar a capacidade de corte 4 instrumentos endodônticos do sistema rotatório Ni-Ti em função número uso 20 blocos com canais simulados resina fenólica (Baquelite®) e 750 curvatura sendo testadas limas diferentes marcas divididas grupos: GA–Limas Twisted File® (25/.12, 25/.10, 25/.08, 25/.06, 25/.04) (n=5); GB- LimasBioRaCe®(25/.08, 15/.05, 25/.04, 35/.0...