TY - JOUR
T1 - Effect of canal length and curvature on working length alteration with WaveOne reciprocating files
AU - Berutti, Elio
AU - Chiandussi, Giorgio
AU - Paolino, Davide Salvatore
AU - Scotti, Nicola
AU - Cantatore, Giuseppe
AU - Castellucci, Arnaldo
AU - Pasqualini, Damiano
PY - 2011/12
Y1 - 2011/12
N2 - Introduction: This study evaluated the working length (WL) modification after instrumentation with WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland) reciprocating files and the incidence of overinstrumentation in relation to the initial WL. Methods: Thirty-two root canals of permanent teeth were used. The angles of curvature of the canals were calculated on digital radiographs. The initial WL with K-files was transferred to the matched WaveOne Primary reciprocating files. After glide paths were established with PathFile (Dentsply Maillefer, Ballaigues, Switzerland), canals were shaped with WaveOne Primary referring to the initial WL. The difference between the postinstrumentation canal length and the initial canal length was analyzed by using a fiberoptic inspection microscope. Data were analyzed with a balanced 2-way factorial analysis of variance (P 1 = 30.65, P 2 = 4.38, P =.014). Conclusions: Checking the WL before preparation of the apical third of the root canal is recommended when using the new WaveOne NiTi single-file system.
AB - Introduction: This study evaluated the working length (WL) modification after instrumentation with WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland) reciprocating files and the incidence of overinstrumentation in relation to the initial WL. Methods: Thirty-two root canals of permanent teeth were used. The angles of curvature of the canals were calculated on digital radiographs. The initial WL with K-files was transferred to the matched WaveOne Primary reciprocating files. After glide paths were established with PathFile (Dentsply Maillefer, Ballaigues, Switzerland), canals were shaped with WaveOne Primary referring to the initial WL. The difference between the postinstrumentation canal length and the initial canal length was analyzed by using a fiberoptic inspection microscope. Data were analyzed with a balanced 2-way factorial analysis of variance (P 1 = 30.65, P 2 = 4.38, P =.014). Conclusions: Checking the WL before preparation of the apical third of the root canal is recommended when using the new WaveOne NiTi single-file system.
KW - Nickel-titanium
KW - reciprocating motion
KW - WaveOne
KW - working length
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U2 - 10.1016/j.joen.2011.09.014
DO - 10.1016/j.joen.2011.09.014
M3 - Article
C2 - 22099906
AN - SCOPUS:81755166209
VL - 37
SP - 1687
EP - 1690
JO - Journal of Endodontics
JF - Journal of Endodontics
SN - 0099-2399
IS - 12
ER -