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作者对20名患者29颗外伤嵌入性恒切牙的疗效进行观察。其中男12,女8,年龄7～12岁,平均9.55岁。中切牙27颗,侧切牙2颗。嵌入深度大于或等于5mm为重度,共15颗,小于5mm为中度,共14颗。治疗方法:采用带夹板活动矫治19颗,采用外科手术复位10颗。术后1,3,6月,1,2年照牙片,以观察牙根发育、牙槽骨情况,并检查牙髓活力。结果发现严重嵌入牙保留率比中度嵌入牙明显低.带夹板活动矫治的牙保留率比手术复位牙明显高。带夹板活动矫治的19颗牙,其中24小时内复位者保留率比24小时复位者明显高.两种治疗方法对保留牙牙根吸收无差异,牙根吸收率为38%,牙槽骨吸收多见牙手术复位
The authors observed the efficacy of 29 traumatic embedded incisors in 20 patients. Of which 12 men and 8 women, aged 7 to 12 years, with an average of 9.55 years old. 27 incisors, 2 incisors. Embedded depth greater than or equal to 5mm for the heavy, a total of 15, less than 5mm for the moderate, a total of 14. Treatment: 19 cases with splint activity, the use of surgical reduction of 10. After 1, 3, 6 months, 1, 2 years according to tooth decay, to observe the root development, alveolar bone conditions, and check the pulp vitality. The results showed that the rate of serious interdental tooth retention was significantly lower than that of moderate embedding teeth, and the tooth retention rate with splint activity was significantly higher than that of surgical reduction teeth. 19 teeth with splint activity correction, among them, the retention rate within 24 hours was significantly higher than the 24-hour reduction.The two treatment methods showed no difference in retained root resorption, root resorption rate was 38%, and alveolar bone resorption was more common Tooth surgery reduction