Postoperative complications in endodontic treatment in single versus multiple sessions: a literature review

Abstract

To perform a literary review of recently published studies on possible complications after canal treatment in a single session and to bring a comparative analysis of this technique in relation to the more traditional technique (two or more sessions). With the introduction of contemporary techniques and equipment, endodontic treatment in a single session can be performed safely and effectively. However, professionals are still very reluctant to incorporate this technique into clinical practice, due to the complications that may occur in the postoperative phase. Among the findings, it was possible to report that the most common complications after the single session are: swelling, sensitivity to percussion, increased mobility, systemic disorders and, more commonly, postoperative pain. However, endodontic treatment in one session appears to be effective and safe, as it does not show a significant difference in relation to treatment performed in more than one session. However, for a higher success rate, it is necessary that no stage of treatment is neglected or performed ineffectively. In addition, root canal treatment in more than one session can still be performed in some cases, for example, in patients with temporomandibular disorders and in cases of pulp necrosis with the presence of periapical lesion. Therefore, even with the evolution of endodontic equipment and devices, the best treatment option for each patient must still be performed individually.