牙髓再生术和根尖诱导术治疗感染性年轻恒牙的临床预后调查研究

Efficacy of pulp regeneration and apical induction on the clinical prognosis of infectious young permanent teeth: a comparative study

目的调查对比牙髓再生术和根尖诱导术治疗感染性年轻恒牙的临床疗效和预后。方法调查分析2013年1月—2016年1月期间164例感染性年轻恒牙患者的临床资料,按照治疗方法的不同将其分成了牙髓再生组和根尖诱导组,比较两组患者临床疗效、术后疼痛发生率以及术后患牙冠根比和牙根管壁厚度。结果 2组患者根尖牙周病的平均愈合时间差异无统计学意义(t=1.501,P>0.05);牙髓再生组术后疼痛的发生率低于对照组,临床有效率均高于根尖诱导组,差异均有统计学意义(P<0.05);术后末次随访,牙髓再生组患者的患牙冠根比和牙根管壁厚度均大于根尖诱导组,差异具有统计学意义(P<0.05)。结论与根尖诱导术比较,牙髓再生术治疗感染性年轻恒牙更有利于牙根的继续发育和牙根结构的增强,提高了临床疗效。

Objective To evaluate the clinical efficacy of pulpal regeneration and apical induction on the prognosis of invasive young permanent teeth. Method The clinical data collected during the period from January 2013 to January 2016 of164 patients with infectious young permanent teeth were analyzed. According to the different treatment methods,they were divided into two groups-pulp regeneration group and apical induction group. The clinical efficacy,the incidence of postoperative pain and the thickness of the crown and root and the thickness of the root canal of the two groups were then compared. Findings No significant difference was observed in the mean healing time of root canal disease between the two groups（ t = 1.501,P〈0. 05）. The incidence of postoperative pain in the pulp regeneration group was significantly lower than that in the control group（ P〉0. 05）. The clinical effective rates were 97. 83% and 90. 28% in the pulp recurrence group and the apical induction group respectively. The difference was significant（ P〈0. 05）; At the last follow-up,the crown-to-root ratio and the thickness of the root canal were significantly greater in the pulp regeneration group than in the apical induction group（ P〈0. 05）. Conclusion Compared with apical induction,the treatment of infectious young permanent teeth by pulp regeneration is conducive to the continued development of the root and the enhancement of the root structure,improves the clinical symptoms of patients and increases the clinical efficacy.