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Fracture incidence of WaveOne Gold files: a prospective clinical study
Author(s) -
Bueno C. S. P.,
Oliveira D. P.,
Pelegrine R. A.,
Fontana C. E.,
Rocha D. G. P.,
Gutmann J. L.,
Bueno C. E. S.
Publication year - 2020
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1111/iej.13349
Subject(s) - incidence (geometry) , fracture (geology) , medicine , dentistry , materials science , forensic engineering , engineering , composite material , mathematics , geometry
Aim This prospective clinical study evaluated the incidence of instrument fracture observed after single‐file root canal treatment of molars using WaveOne Gold instruments. Methodology Three standardized, experienced and calibrated specialists treated 750 maxillary and mandibular molars with curvatures less than 45° (2691 root canals) over a 12‐month period. All the treatments were performed in a single session. A total of 1104 WaveOne Gold instruments were used, including 38 small, 750 primary, 228 medium and 88 large instruments. Intracanal procedures were performed according to the manufacturer's recommendations, and each instrument was used in a single clinical case. The instruments were examined after their removal from the canal, under an operating microscope at 8× magnification. Results No fractures were observed in any of the 1104 instruments used. Conclusions No fractures of WaveOne Gold reciprocating instruments occurred during root canal preparations performed in maxillary and mandibular molars with curvatures less than 45° when used strictly according to the manufacturer's recommendations and applied in a single clinical case.

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