From:  Efficacy of low-level laser therapy in oral mucosal surgical wound healing: a systematic review and meta-analysis

Risk of bias assessment

Study’s first authorRandom sequence generation (selection bias)Allocation concealment (selection bias)Blinding of participants and personnel (performance bias)Blinding of outcome assessment (detection bias)Incomplete outcome data (attrition bias)Selective reporting (reporting bias)Other bias
Isler et al. [25]
Dias et al. [26]
Ustaoglu et al. [27]
Metin et al. [28]
Pouremadi et al. [29]
Heidari et al. [30]
Yildiz and Gunpinar [31]
Ozcelik et al. [32]
Paschoal and Santos-Pinto [33]
Demirturk-Gocgun et al. [34]
da Silva Neves et al. [35]
Sadighi et al. [36]
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References [25, 27, 28, 31, 34]: high risk; [29, 36]: unclear risk; [26, 30, 32, 33, 35]: low risk of bias. Green +: there is no bias in this section; red -: there is bias in this section; yellow ?: unclear