[Comparison of expression of transforming growth factor-β1 in rat dental pulp during direct pulp capping with 2 capping agents].

Purpose: To examine and compare the expression of transforming growth factor-β1(TGF-β1) in rat dental pulp after direct pulp capping with calcium hydroxide (CH) and mineral trioxide aggregate (MTA).

Methods: The model of direct dental pulp capping after first molars was established in 28 female Wistar rats with CH and MTA. The rats were sacrificed 1, 3, 5, 7, 14,21 and 28 days after direct pulp capping.