Abstract:

Objective：To compare the clinical effects of three kinds of temporary stopping in root canal therapy. Method：Three
hundred sick teeth，including 150 with simple cavity and 150 with compound cavity，were randomly selected and sealed with Ceivtron，oxide-eugenol cement and gutta-percha. The seal effects were observed and recorded one week later. Forty hundred and fifty sick teeth（entirely simple cavity）were divided into 9 groups randomly and sealed with the above-mentioned three kinds of materials. Sealing effects were observed and recorded respectively at 3 days，one week and two weeks after operation. Result：Ceivtron and oxide-eugenol cement showed better sealing effect than gutta-percha. But the oxide-eugenol cement is not popular among patients because of its bad smell. Conclusion：The results suggested that Ceivtron may be the best choice among the three kinds of materials in root canal therapy.

Key words: ceivitron temporary stopping, root canal therapy, clinical application