牙外伤是口腔颌面外伤的一部分，外伤引起牙齿脱落较为常见，其发生率逐年增加。而脱落牙再植和保留牙髓再植已引起人们的高度重视，植后如何稳固和成活更是口腔临床治疗探讨的热点，笔者１９７６～１９９７年共收治近１３０多例，追踪复查到的有９３例１６２颗牙。术后最... Tooth trauma is a part of oral and maxillofacial trauma, trauma caused by tooth loss is more common, the incidence increased year by year. And replantation of dental implants and retention of replantation of dental pulp has attracted people's attention, how to stabilize and survive after implantation is more clinical study of oral hot spots, the author from 1976 to 1997 were treated nearly 130 cases, the follow-up to track 93 cases of 162 teeth. After the most ...