Unveiling the correlation between in vivo endodontic reciprocate instrumentation and crack formation.

Introduction: Dentinal microcracks have been supposedly associated with unrestorable vertical root fractures and consequently long-term treatment failure. This study aimed to investigate whether in vivo root canal instrumentation in mandibular incisors with vital pulps causes dentinal microcracks using two different irrigating solutions.

Methods: Five patients with four vital mandibular incisors indicated for extraction were included.