Impact of Single-Session Intraoral and Extraoral Photobiomodulation on Pain Control after Extraction of Impacted Mandibular Third Molar: A Pilot Study

Author:

Tenore Gianluca1ORCID,Mohsen Ahmed1ORCID,Pergolini Daniele1ORCID,Le Rose Michele1,Del Vecchio Alessandro1ORCID,Palaia Gaspare1ORCID,Rocchetti Federica1ORCID,Fantozzi Paolo Junior1,Podda Gian Marco1ORCID,Romeo Umberto1ORCID

Affiliation:

1. Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, 00161 Rome, Italy

Abstract

This study aims to evaluate the impact of a single session of intraoral and extraoral photobiomodulation (PBM) on controlling pain and improving a patient’s daily activities following surgical extraction of the impacted mandibular third molar, using combined three wavelengths: “445 nm, 660 nm, and 970 nm”. A pilot study was conducted on 22 patients undergoing extraction of an impacted mandibular third molar. The patients were randomly divided into two groups: (1) The Test Group consisted of patients subjected to immediate postoperative PBM. The extraoral PBM parameters were power = 550 mW and spot area = 5 cm2, while the intraoral parameters were power = 200 mW and spot area = 2 cm2. (2) The Control Group consisted of the patients not subjected to PBM. For all the patients, the pain was evaluated via a Numeric Rating Scale (NRS) on day 0, day 1, day 3, and day 7 after surgical intervention. The patient’s daily activities were evaluated on day 7 via a custom-made questionnaire. A statistically significant difference was observed between groups in the pain NRS scores on day 0 (p = 0.022), day 1 (p = 0.047), and day 7 (p = 0.028). No significant difference was found on day 3 (p = 0.153). A marginal statistical significance was observed with the number of painkillers taken (p = 0.054). No significant difference was observed with the questionnaire score (p = 0.206). This pilot study showed a significant reduction in postoperative pain on days 0, 1, and 7 with a single session of intraoral and extraoral PBM. However, the number of painkillers taken and the scores of the daily activities questionnaire did not show statistical significance despite the observed better results in patients subjected to PBM.

Publisher

MDPI AG

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