Eur Endod J. Ahead of Print: EEJ-38980 | DOI: 10.14744/eej.2024.38980

‘Use Of 2Shape® File in Adaptive Kinematics Influences Post-Operative Pain After Single Visit Endodontics in Symptomatic Irreversible Pulpitis- A Double-Blinded, Randomized Clinical Trial’

Sayisree Yarlagadda, Keerthana Prabakar, Sooriaprakas Chandrasekaran, Velmugran Natanasabapathy, Nandini Suresh
Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College and Hospital, Maher, Chennai,TamilNadu, India

Objective: This double-blinded randomized clinical trial aimed to compare postoperative pain using 2Shape® (TS) in rotary (TSRot) and adaptive (TSAK) kinematics in the maxillary and mandibular molars in patients with symptomatic irreversible pulpitis and symptomatic apical periodontitis following single-visit endodontic treatment.
Methods: Seventy patients were randomly assigned to two groups (TSRot /TSAK), (n=35 each). The preoperative and postoperative pain intensities at various time intervals up to 72h using a Visual-Analogue Scale was noted. Mann-Whitney U test (p<0.05*) was used to compare pain intensity, and the chi-square test was used to compare the incidence of pain. Dunns test (p<0.05*) was used for intragroup comparisons. Binary logistic regression was performed at consecutive time intervals.
Results: A total of 67 patients were included in the final analysis, and three were excluded due to medication intake. Both groups showed a gradual reduction in the mean incidence and intensity of postoperative pain from 6 to 72 hours. However, TSAK had a significantly lower intensity and incidence of pain than TSRot at 24h (p=0.02*). There was no statistically significant difference observed in the duration of instrumentation when the TS file was used in either adaptive or rotary kinematics (p=0.41).
Conclusion: Adaptive kinematics (TSAK) resulted in less pain incidence compared with rotary kinematics (TSRot). A statistically significant difference in incidence was observed at 24 h but may not be clinically significant. The duration of instrumentation was similar between the TSRot and TSAK groups. Thus, the 2Shape® (TS) file, which is a rotary file, can be used in adaptive kinematics to reduce the postoperative pain. (EEJ-2024-02-036)

Keywords: Motion kinematics, postoperative pain, root canal treatment, single-visit endodontics, twisted adaptive motion

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