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. Author manuscript; available in PMC: 2024 Feb 20.
Published in final edited form as: J Am Dent Assoc. 2023 May 18;154(7):567–579. doi: 10.1016/j.adaj.2023.03.004

Figure 2.

Figure 2.

Pain, analyses for time and irradiation parameters: 24 treatment groups reported from 20 studies. A. Red visible light wavelengths, 550 through 660 nm. B. Near-infrared wavelengths, 780 through 1,064 nm. AlGaAs: Aluminum gallium arsenide. AsGaAl: Arsenide gallium aluminium. C: Contact. E: Extraoral. GaAlAs: Gallium aluminum arsenide. GaAs: Gallium arsenide. I: Intraoral. NC: Noncontact. Nd:YAG: Neodymium-doped yttrium aluminum garnet. * –: A value that cannot be derived from other reported values. † Indicates value that was initially misreported and corrected by the authors’ calculations. ‡ Indicates value was not reported in the literature and was calculated by the authors with values given in the article.