From:  Myofunctional therapy in sleep disorders: a systematic review

 Summary of the risk of bias for each article included in the systematic review.

StudyIncomplete outcome dataSelective reportingOther bias
Villa et al. (2015) [11]
Diaferia et al. (2013) [18]
Diaféria et al. (2017) [19]
Erturk et al. (2020) [20]
Guimarães et al. (2009) [21]
Villa et al. (2017) [22]
Ieto et al. (2015) [23]
Kim et al. (2020) [24]
Lin et al. (2020) [25]
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+: low risk of bias; –: high risk of bias; ?: unclear risk of bias.