Extracting and synthesizing data A narrative synthesis was carried out after taking into account the risk of bias of the included studies (e.g., how well the included studies addressed the review objectives and allowed for a quality assessment in terms of the quantity and kind of teeth extractions). This included examining the similarities and differences between the findings of the various studi...

Selection and retrieval The flow diagram for the screening and selection technique is depicted in the figure. Two reviewers (DLMB, AdJ) and a librarian created the search keywords (Table 1). After duplicates were eliminated, two independent reviewers (DLMB, AdJ) conducted a preliminary assessment of the abstract and title. Until complete consensus was achieved, all variances were discussed. The t...