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. 2016 Winter;11(1):38-43.
doi: 10.7508/iej.2016.01.008. Epub 2015 Dec 24.

Postoperative Pain after Endodontic Treatment of Asymptomatic Teeth Using Rotary Instruments: A Randomized Clinical Trial

Shahriar Shahi  1 , Vahideh Asghari  2 , Saeed Rahimi  1 , Mehrdad Lotfi  1 , Mohammad Samiei  2 , Hamidreza Yavari  2 , Sahar Shakouie  2 , Saeed Nezafati  3
Affiliations

Postoperative Pain after Endodontic Treatment of Asymptomatic Teeth Using Rotary Instruments: A Randomized Clinical Trial

Shahriar Shahi et al. Iran Endod J. 2016 Winter.

Abstract

Introduction: The aim of the present study was to compare the effect of two different rotary instruments on postoperative pain in teeth with asymptomatic irreversible pulpitis.

Methods and materials: A total of 78 mandibular first and second molars were divided into two groups (n=39) and their root canal preparation was carried out with either RaCe or ProTaper rotary instruments. All the subjects underwent one-visit root canal treatment and the severity of postoperative pain was evaluated using visual analog scale (VAS) at 4-, 12-, 24-, 48- and 72-h and 1-week intervals. In addition, the need for taking analgesics was recorded. Data were analyzed with the repeated-measures ANOVA and the Mann-Whitney U test was used for two-by-two comparison. Statistical significance was set at 0.05.

Results: Comparison of mean pain severity between the two groups at various postoperative intervals did not reveal any significant differences (P=0.10). The difference in amount of analgesics taken by each groups was not statistically significant (P=0.25).

Conclusion: There were no significant differences in the postoperative pain reported between the two groups; which indicates the clinical acceptability of both systems.

Keywords: Flare-Up; Irreversible Pulpitis; Postoperative Pain; ProTaper; RaCe; Root Canal Treatment.

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Figures

Figure 1
Figure 1
Process of patient enrolment
Figure 2
Figure 2
Mean pain severity at 4-, 12-, 24-, 48- and 72-hour and 1-week postoperative intervals in both groups
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