Fig. 2From: Effects of immediate and delayed loading protocols on marginal bone loss around implants in unsplinted mandibular implant-retained overdentures: a systematic review and meta-analysisQuality assessment and risk of bias of the included RCTs assessed by review authors with the RevMan v.5.3 software: a risk of bias summary showing review authors' judgments about risk of bias items for each included RCT; b risk of bias graph showing review authors' judgments about each item's risk of bias presented as percentages for all included RCTsBack to article page