The influence of various automated devices on the shaping ability of Mtwo rotary nickel‐titanium instruments

Abstract

Both systems respected original root canal curvature well and were safe, indicating that the Mtwo direct handpiece is suitable for preparing curved root canals with the Mtwo instruments.

Effectiveness of a Manual Glide Path on the Preparation of Curved Root Canals by Using Mtwo Rotary Instruments

“…In the present study, straightening ranging from 6-10 degrees was registered. Other studies (11,19) reported straightening ranging from 1-2.69 degrees in teeth with an angle of canal curvature between 25 and 35 degrees. Our results suggest that the straightening tendency increases in conjunction with severe curvature.…”

“…In comparison with the crown-down procedure, Mtwo instruments allow more blades to be in contact with the canal at the same time, although this might result in a higher frictional resistance (19). Initial negotiation of root canal space is desirable by using hand files up to #15 in a watch-winding motion to assure the presence of a glide path (13) up to the foramen.…”

Impacts of Conservative Endodontic Cavity on Root Canal Instrumentation Efficacy and Resistance to Fracture Assessed in Incisors, Premolars, and Molars

“…Testing of fracture was carried out in a blinded manner to minimize bias. During canal instrumentation, only NaOCl was used for irrigation to avoid the potential impact of different irrigation solutions on dentin removal and fracture resistance as suggested in several previous studies (105)(106)(107)(108). The teeth were loaded without restoration of the endodontic cavities to avoid the confounding effects of enamel and dentin bonding restorative materials.…”

Apical transportation and canal straightening with different continuously tapered rotary file systems in severely curved root canals: F6 SkyTaper and OneShape versus Mtwo

“…, Yang et al . ), and details regarding the design features of the Mtwo instruments have been published (Bürklein & Schäfer ).…”