Cyclic fatigue resistance of different continuous rotation and reciprocating endodontic systems.

Objective: The objective of this study is to compare the cyclic fatigue resistance of nine types of endodontic instruments of nickel-titanium.

Materials And Methods: Five files of 25 mm of length of each group: Reciproc (RC) R25; WaveOne (WO) Primary; Unicone (UC) L25 25/0.06; K3XF 25/0.

Analysis of the film thickness of a root canal sealer following three obturation techniques.

The aim of this study was to obtain a quantitative analysis of the film thickness of a root canal sealer formed after filling by three different techniques. Thirty human maxillary incisors were selected and access cavities were prepared using high-speed diamond stones and water spray. A size #15 K-Flexofile was introduced in the canal of each specimen until it was seen just at the apical foramen.