1.Methods Apexification treatment with calvital and infectious control was applied to 28 immature permanent teeth from 24 patients with pulpitis or periapical periodontitis.

1.采用控制感染加钙维他药物的根尖诱导24者28颗根尖尚未发育完并有牙髓炎或尖周炎的年轻恒牙。