Comparison of the incidence of post-operative pain after low-level laser therapy between single- and multi-visit root canal treatments for chronic apical periodontitis: A prospective randomized clinical trial

Helin Özkan Özcan(1), Faruk Haznedaroğlu(2), Selçuk Gökyay(3)
(1) İzmir Educational Dental Hospital, İzmir, Turkey,
(2) İstanbul University, Faculty of Dentistry, Department of Endodontics, İstanbul, Turkey,
(3) Istanbul University Faculty of Dentistry Department of Endodontics

Abstract

Aim: The aim of this clinical study was to evaluate the effect of low-level laser therapy, used in conjunction with conventional canal disinfection techniques, on post-operative pain after single- and multi-visit root canal treatments for chronic apical periodontitis.


Methodology: 100 volunteers were randomly divided into 4 groups. The main inclusion criteria were radiographic evidence of apical periodontitis (minimum size of 2.0 × 2.0 mm) and a diagnosis of pulpal necrosis confirmed by a negative response to vitality tests. All the root canals were prepared using a standard shaping technique and irrigation procedure. In Groups I and III, the root canals were obturated during the first visit following chemo-mechanical preparation. In Groups II and IV, the root canals were medicated with calcium hydroxide and obturated during a second visit, 1 week later. In Groups III and IV, after the chemo-mechanical preparation, the root canals were additionally irradiated by an 810-nm diode laser at 1.5 W output for 20 seconds. A modified visual analogue scale was used to measure pain at 4, 8, 12, 24, and 48 hours and 7 days after the treatment.


Results: There was no statistically significant difference between the groups in terms of post-operative pain at any time during the observation period (p > .05). Post-operative pain occurred only at 8 and 12 hours and at 1, 2, and 3 days in all groups. There was no correlation between the results regarding age, gender, periapical index scores, or tooth type.


Conclusion: The use of low-level laser therapy had no significant effect on the incidence of post-operative pain, and single-visit root canal treatment may be a strong alternative to multi-visit treatment.


How to cite this article: Özkan Özcan H, Haznedaroğlu F, Gökyay S. Comparison of the incidence of post-operative pain after low-level laser therapy between single- and multi-visit root canal treatments for chronic apical periodontitis: A prospective randomized clinical trial. Int Dent Res 2021;11(1):30-7. https://doi.org/10.5577/intdentres.2021.vol11.no1.6


 


Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Authors

Helin Özkan Özcan
Faruk Haznedaroğlu
Selçuk Gökyay
sgokyay@gmail.com (Primary Contact)
Özkan Özcan, H., Haznedaroğlu, F., & Gökyay, S. (2021). Comparison of the incidence of post-operative pain after low-level laser therapy between single- and multi-visit root canal treatments for chronic apical periodontitis: A prospective randomized clinical trial. International Dental Research, 11(1), 30-37. https://doi.org/10.5577/intdentres.2021.vol11.no1.6

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How to Cite

Özkan Özcan, H., Haznedaroğlu, F., & Gökyay, S. (2021). Comparison of the incidence of post-operative pain after low-level laser therapy between single- and multi-visit root canal treatments for chronic apical periodontitis: A prospective randomized clinical trial. International Dental Research, 11(1), 30-37. https://doi.org/10.5577/intdentres.2021.vol11.no1.6
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