Conclusion The deciduous lower front fused teeth can influence the succedaneous fixed teeth and secondary dentition.

结论乳下前牙融合牙对继承恒牙及恒牙列均有影响。

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

采用控制感染加钙维他药物的根形术治疗24例患28颗根尚未发育患有牙髓炎或周炎的年轻恒牙。