Fig. 2From: Simultaneous placement of short implants (≤ 8 mm) versus standard length implants (≥ 10 mm) after sinus floor elevation in atrophic posterior maxillae: a systematic review and meta-analysisRisk of bias for included RCTs. A Each risk of bias item presented as percentages across the randomized controlled trials. B Each risk of bias item for each randomized controlled trialBack to article page