110 , 111 According to the literature, the incidence of intracanal separation ranges from approximately 0.2% to 25%, with a decreasing trend over the years probably due to innovations in terms of design, metallurgy, and kinematics. 112–117 Moreover, considering the root canal thirds and the prevalence of instrument separation, the highest percentage has been found in the apical third (52.5%–71.43%), followed by the middle third (27.5%–2
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