目的：本研究旨在评估颌骨囊肿病变对牙髓组织的影响，为有效保存牙齿的解剖结构和功能提供依据。方法：回顾性分析 2021 年 8 月—2022 年 12 月期间在我院就诊的 36 例颌骨囊肿患者的临床资料，共纳入 51 颗受累的活髓牙。根据囊肿是否累及根尖和是否进行植骨手术，分别分为累及根尖组（27 颗）、未累及根尖组（24 颗）和植骨组（43 颗）、未植骨组（8 颗），比较各组术前和术后 3 个月牙齿的牙髓活力值及其活力变化值。结果：累及根尖组与未累及根尖组 2 组牙髓活力变化值比较，差异无统计学意义（P>0.05）；植骨组与未植骨组术前、术后牙髓活力变化值比较，差异无统计学意义（P>0.05）。结论：颌骨囊性病变累及根尖的活髓牙可保留牙髓活力；颌骨囊肿术后植骨不影响累及牙的牙髓活力。

牙髓保存, 囊性病变, 引导骨组织再生, 牙髓活力

Objective: To evaluate the impact of jaw cystic lesions on dental pulp tissue, providing a basis for the effective preservation of the anatomical structure and function of teeth. Methods: Between August 2021 and December 2022, a total of 51 teeth with live pulp and cystic lesions affecting the roots were studied at our institution. These teeth were categorized based on the extent of cystic involvement in the root region: 27 teeth were categorized as apically involved (apical group), while 24 teeth were not apically involved (non-apical group). Preoperative and postoperative pulp vitality values were measured and subjected to t-test analysis. Additionally, 43 teeth underwent bone grafting in the surgical area (bone grafting group), whereas 8 teeth did not receive bone grafting (non-bone grafting group). Changes in pulp vitality before and 3 months after surgery were recorded and analyzed using t-tests, with a significance level set at P<0.05. Results: There were no statistically significant differences in pulp vitality changes between the apical and non-apical groups (P>0.05). Similarly, no statistically significant differences were observed in pulp vitality changes between the bone grafting and non-bone grafting groups (P>0.05). Conclusion: Vital pulp in teeth with apical involvement due to jaw cystic lesions can be preserved; bone grafting after jaw cyst surgery does not affect the pulp vitality of the involved teeth.

pulp tissue preservation, cystic lesions, bone tissue regeneration, pulp vitality