[邻牙阻生导致牙根外吸收牙齿的预后]
[Prognosis of teeth with external root resorption caused by adjacent impacted teeth].
作者信息
Lai Ying, Pan Wei-Lin, Liu Chang, Huang Jing-Yuan, Hua Cheng-Ge
机构信息
State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of General Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
出版信息
Hua Xi Kou Qiang Yi Xue Za Zhi. 2019 Jun 1;37(3):280-284. doi: 10.7518/hxkq.2019.03.010.
OBJECTIVE
This study aimed to investigate the prognosis of permanent teeth with external root resorption (ERR) caused by adjacent impacted teeth.
METHODS
A total of 75 ERR teeth (permanent teeth) caused by adjacent impacted teeth of 63 patients were included. The prognosis of ERR teeth was analyzed followed by minimally invasive extraction of the adjacent impacted teeth. The time of follow-up was six months. The relationship between prognosis of ERR teeth and patients' age, gender, root number, type of root resorption and degree of root resorption were analyzed.
RESULTS
In the 75 ERR teeth, 67 teeth (89.3%) did not show pulpitis symptoms. The clinical outcome was found to be related with age (r=0.330, P<0.05), whereas no relationships with gender, root number, as well as type and degree of root resorption were observed (P>0.05). Pulpitis symptom was not found in ERR teeth of patients under 30 years old.
CONCLUSIONS
For ERR teeth caused by adjacent impacted teeth, keeping the pulp vital after surgical removal of impacted teeth is highly probable. Post-operative follow-up instead of preventive root canal therapy of ERR teeth is recommended.
目的
本研究旨在调查因邻牙阻生导致的恒牙牙根外吸收（ERR）的预后情况。
方法
纳入63例患者中因邻牙阻生导致的75颗ERR恒牙。在微创拔除邻牙阻生牙后分析ERR牙的预后情况。随访时间为6个月。分析ERR牙的预后与患者年龄、性别、牙根数目、牙根吸收类型及牙根吸收程度之间的关系。
结果
在75颗ERR牙中，67颗牙（89.3%）未表现出牙髓炎症状。临床结果发现与年龄有关（r=0.330，P<0.05），而与性别、牙根数目以及牙根吸收类型和程度无关（P>0.05）。30岁以下患者的ERR牙未发现牙髓炎症状。
结论
对于因邻牙阻生导致的ERR牙，在手术拔除阻生牙后保持牙髓活力的可能性很大。建议对ERR牙进行术后随访而非预防性根管治疗。
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