目的:探讨热牙胶垂直加压根管充填术用于颌骨大型囊肿术前根管治疗的临床疗效。方法: 选择直
径大于等于3． 5cm 的颌骨大型囊肿42 例，共183 颗患牙。将42 例病人随机分成两组，其中实验组21 例病人103
颗患牙，根管充填采用热牙胶垂直加压根管充填术，对照组21 例病人80 颗患牙，采用传统冷侧压根管充填技术
进行根管充填。拍术后X 线片确定根管充填情况，术后1a 定期随访病人术后远期效果。结果: 试验组1a 成功
率为95． 14%，对照组1a 成功率为83． 75%，试验组成功率高于对照组，术后1a 的成功率差异有统计学意义( P ＜
0． 05) 。结论:热牙胶垂直加压根管充填术用于颌骨大型囊肿术前根管治疗疗效优于传统冷侧压根管充填术。

Objective: Thermal tooth gel vertical condensation root canal filling technique is used
for root canal treatment the clinical curative effect of preoperative large maxillary cyst． Methods: Selecting
diameter greater than or equal to 3． 5cm large maxillary cyst 42 cases，183 teeth． 42 patients were
randomly divided into two groups，experimental group 21 cases with 103 teeth． Tooth root canal filling
with hot glue vertical condensation root canal filling． The control group 21 cases with 80 teeth． The traditional
cold side tube filling technique for root canal filling at all． On postoperative X line piece to determine
the root canal filling． After 1 year follow － up of patients with postoperative long － term effect on
a regular basis． Results: Year success rate of treatment group was 95． 14%， the success rate was
83． 75% in control， the success rate of treatment group is higher than the control group． Conclusion:
Warm gutta － percha obturation techniques used in large maxillary cyst preoperative root canal treatment
curative effect is superior to the traditional cold side of the canal filling at all．

R781． 33