## 4 Discussion
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Author, Year** & **Type of Laser** & **Wavelength** & **Power** & **Power Density** & **Irradiated Area** & **Time of Application** \\ \hline [PERSON] et al., 2018 [27] & Diode laser & \multicolumn{2}{c}{830 nm} & \multirow{2}{*}{400 mW} & \multirow{2}{*}{-} & \multirow{2}{*}{0.15 cm\({}^{2}\)} & \multirow{2}{*}{-} \\  & & continuous wave & & & & \\ \hline \multirow{6}{*}{[PERSON] et al., 2013 [28]} & \multicolumn{2}{c}{660 nm after} & \multirow{6}{*}{20 mW–60 mW} & \multirow{2}{*}{5 J/cm\({}^{2}\)–30} & \multirow{2}{*}{-} & \multirow{2}{*}{10 s} \\  & & & & & & \\ \cline{1-1}  & & intraoral spots, & & & & \\ \cline{1-1}  & & 789 nm after & \multirow{2}{*}{20 mW–60 mW} & \multirow{2}{*}{J/cm\({}^{2}\)–30} & \multirow{2}{*}{-} & \multirow{2}{*}{10 s} \\  & & & & & & \\ \cline{1-1}  & & intraoral spots, & & & & \\ \cline{1-1}  & & intraoral tubular & \multirow{2}{*}{20 MHz–60 mW} & \multirow{2}{*}{J/cm\({}^{2}\)–2} & \multirow{2}{*}{-} & \multirow{2}{*}{10 s} \\  & & & & & & \\ \cline{1-1}  & & intraous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2021 [29]} & GaAlAs & 810 nm & \multirow{2}{*}{200 mW} & \multirow{2}{*}{5.5 W/cm\({}^{2}\)} & \multirow{2}{*}{0.0364 cm\({}^{2}\)} & \multirow{2}{*}{5 s} \\  & Diode Laser & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2022 [30]} & GaAlAs & 810 nm & \multirow{2}{*}{200 mW} & \multirow{2}{*}{12–14 J/cm\({}^{2}\)} & \multirow{2}{*}{0.0364 cm\({}^{2}\)} & \multirow{2}{*}{30 s} \\  & Diode Laser & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2020 [31]} & Diode laser & \multicolumn{2}{c}{80 nm} & \multirow{2}{*}{50 mW} & \multirow{2}{*}{3 J/cm\({}^{2}\)} & \multirow{2}{*}{3.14 cm\({}^{2}\)} & \multirow{2}{*}{188 s} \\  & & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2017 [38]} & \multirow{2}{*}{Diode Laser} & \multicolumn{2}{c}{660 nm intraoral,} & \multirow{2}{*}{200 mW} & \multirow{2}{*}{1.5 J/cm\({}^{2}\)–7} & \multirow{2}{*}{-} & \multirow{2}{*}{10 s} \\  & & & & & & \\ \cline{1-1}  & & intraoral & \multirow{2}{*}{20 MHz–70 mW} & \multirow{2}{*}{-} & \multirow{2}{*}{10 s} \\  & & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2021 [39]} & \multirow{2}{*}{Diode Laser} & \multicolumn{2}{c}{80 nm} & \multirow{2}{*}{100 mW} & \multirow{2}{*}{4 J/cm\({}^{2}\)} & \multirow{2}{*}{-} & \multirow{2}{*}{40 s} \\  & & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2019 [40]} & \multirow{2}{*}{Diode Laser} & \multicolumn{2}{c}{780 nm} & \multirow{2}{*}{-} & \multirow{2}{*}{0.04 cm\({}^{2}\)} & \multirow{2}{*}{90 s} \\  & & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2020 [32]} & GaAlas & 808 nm & \multirow{2}{*}{100 mW} & \multirow{2}{*}{2.8 J/cm\({}^{2}\)} & \multirow{2}{*}{1 cm\({}^{2}\)} & \multirow{2}{*}{28 s} \\  & Diode Laser & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2014 [33]} & GaAlas & 810 nm & \multirow{2}{*}{100 mW} & \multirow{2}{*}{3 J/cm\({}^{2}\)} & \multirow{2}{*}{0.283 cm\({}^{2}\)} & \multirow{2}{*}{90 s} \\  & Diode laser & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2017 [35]} & \multirow{2}{*}{Diode Laser} & \multicolumn{2}{c}{810 nm laser and \multirow{2}{*}{632 nm}} & \multirow{2}{*}{-} & \multirow{2}{*}{5 J/cm\({}^{2}\) diode} & \multirow{2}{*}{-} & \multirow{2}{*}{90 s} \\  & & 632 nm & & & & \\ \cline{1-1}  & & LED beams & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2022 [36]} & LED & \multicolumn{2}{c}{660 nm and 850 nm} & \multirow{2}{*}{6.4 mW/cm\({}^{2}\)} & \multirow{2}{*}{7.64 J/cm\({}^{2}\)} & \multirow{2}{*}{-} & \multirow{2}{*}{-} \\  & & intraoral spots, & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2016 [37]} & GaAs & 904–910 nm & \multirow{2}{*}{0.27 W/cm\({}^{2}\)} & \multirow{2}{*}{244.8 J/cm\({}^{2}\)} & \multirow{2}{*}{0.5 cm\({}^{2}\)} & \multirow{2}{*}{900 s} \\  & Diode Laser & continuous wave & & & & \\ \hline \multirow{2}{*}{[PERSON] et al., 2006 [34]} & GaAlAs & 820–830 nm & \multirow{2}{*}{70 mW} & \multirow{2}{*}{7 J/cm\({}^{2}\)} & \multirow{2}{*}{0.5 cm\({}^{2}\)} & \multirow{2}{*}{90 s} \\  & Diode Laser & continuous wave & & & & \\ \hline \hline \end{tabular}
\end{table}