3. Pulpotomy (MTA) versus pulpotomy (NaOCl).

Outcome	Time point (months)	No. of studies	Risk ratio (95% CI)
Clinical failure	6 and 12	1	Not estimable*
	24	1	0.33 (0.01, 7.81)
Radiological failure	6 and 12	1	0.14 (0.01, 2.63)
	24	1	0.33 (0.04, 2.99)
Overall failure	24	1	0.33 (0.04, 2.99)
Pain	6, 12 and 24 months	1	Not estimable*
Soft tissue pathology	6 and 12	1	Not estimable*
	24	1	0.33 (0.01, 7.81)
Pathologic mobility	6, 12 and 24 months	1	Not estimable*
Pathologic radiolucency	6, 12 and 24 months	1	Not estimable*
Pathologicroot resorption	6 and 12	1	0.14 (0.01, 2.63)
	24	1	0.33 (0.04, 2.99)

*due to lack of events

Abbreviations ‐ CI: confidence interval; MTA: mineral trioxide aggregate; NaOCl: sodium hypochlorite