Fig. 5From: 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-analysisSubgroup analysis in follow-up duration. The p value of subgroup analysis was higher than the analysis of total studies, showing that the different follow-up durations might be a reason for heterogeneityBack to article page