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The effect of various kinematics on postoperative pain after instrumentation: a prospective, randomized clinical
Hakan Arslan1, Ruslan Khalilov1, Ezgi Doğanay1
1Ataturk University, Faculty of Dentistry, Department of Endodontics, Erzurum, Turkey.
Objective::
To evaluate various kinematic movements on postoperative pain using a Reciproc system.
Material And Methods::
Fifty-six molar teeth were divided into four groups according to kinematics as follows: continuous rotation, 360° CCW - 30° CW, 270° CCW - 30° CW, and 150° CCW - 30° CW. Preoperative and postoperative pain levels using visual analogue scale (VAS), percussion pain, and analgesic intake were recorded for each subject. Postoperative pain levels at 1, 3, 5, and 7 d were evaluated. Data were analyzed statistically using the Kruskal-Walis, Mann-Whitney-U, one-way analysis of variance, and chi-square tests (p=0.05).
Results::
Continuous rotation resulted in more pain at Day 1 when compared with the reciprocating groups (360° CCW - 30° CW and 270° CCW - 30° C) (p<0.05).
Conclusions::
Continuous rotation resulted in more postoperative pain at Day 1 than in reciprocating groups, and thereafter no significant pain was found among the groups.
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