Comparison 8. Wound closure with blood products versus none.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
8.1 Alveolar osteitis (7 days) split‐ mouth studies (OR/BB)	2	128	Odds Ratio (IV, Fixed, 95% CI)	0.39 [0.22, 0.67]
8.1.1 Platelet rich fibrin versus none	2	128	Odds Ratio (IV, Fixed, 95% CI)	0.39 [0.22, 0.67]
8.2 Mean pain at 24 hours (0‐to‐10 VAS)	3	116	Mean Difference (IV, Fixed, 95% CI)	‐0.13 [‐0.59, 0.34]
8.2.1 Platelet rich fibrin versus none	3	116	Mean Difference (IV, Fixed, 95% CI)	‐0.13 [‐0.59, 0.34]
8.3 Swelling at 7 days	2	86	Mean Difference (IV, Fixed, 95% CI)	0.11 [‐0.12, 0.35]
8.3.1 Platelet rich fibrin versus none	2	86	Mean Difference (IV, Fixed, 95% CI)	0.11 [‐0.12, 0.35]