口腔儿科医师常遇到遭受外伤的恒前牙。有时创伤可以使牙髓丧失活力。根据受伤牙的发育阶段,牙根的生长可能受到影响;可能导致开放性的根端。对于失去活力的牙齿,应当进行根管治疗以消除感染,籍以达到根端封闭的目的。然而,这对于根端开放的年轻牙齿则是一个难题。因此,对于受到创伤的牙齿,最重要的问题仍是完成根尖孔的封闭。Teldman等人建议作牙髓摘除井以氢氧化钙糊剂根充。这是一种公认的而 Oral pediatricians often experience traumatic permanent anterior teeth. Sometimes trauma can make the pulp lose its vitality. Depending on the developing stage of the injured tooth, the growth of the root may be affected; it may lead to an open root. For the loss of vitality of the teeth, root canal treatment should be carried out to eliminate the infection, so as to achieve the purpose of root closure. However, this is a challenge for young teeth with open roots. Therefore, for traumatized teeth, the most important issue is still to complete the closure of the apical foramen. Teldman et al. Suggest rooting with calcium hydroxide paste. This is a recognized one