4. Pulpotomy (MTA) versus pulpotomy (CH+NaOCl).

Outcome	Time point (months)	No. of studies	Risk ratio (95% CI)
Clinical failure	6 and 12	1	Not estimable*
Radiological failure	6	1	Not estimable*
	12	1	0.09 (0.01, 1.58)
Soft tissue pathology	6 and 12	1	Not estimable*
Pathologic mobility	6 and 12	1	Not estimable*
Adjacent tissue inflammation	6 and 12	1	Not estimable*
Pathologic radiolucency	6	1	Not estimable*
	12	1	0.14 (0.01, 2.66)
Pathologicroot resorption	6	1	Not estimable*
	12	1	0.14 (0.01, 2.66)
Pulp canal obliteration	6	1	Not estimable*
	12	1	0.44 (0.15, 1.29)

*due to lack of events

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