牙髓血运重建术中应用BP-RRM治疗年轻恒牙牙髓坏死的临床效果

Clinical efficacy of pulp revascularization with BP-RRM for pulp necrosis of immature permanent teeth

目的探讨在牙髓血运重建术中采用BP-RRM治疗年轻恒牙牙髓坏死的临床效果。方法选取48例年轻恒牙牙髓坏死患者,随机分为研究组与对照组,每组24例。两组均行牙髓血运重建术,研究组及对照组在术中分别采用BP-RRM、MTA封闭根管上段。治疗6个月后,比较两组治疗的有效率,并于治疗6个月、12个月后比较两组的牙本质表面牙骨质样组织沉积率。结果治疗6个月后研究组的临床有效率高于对照组(P<0.05);在治疗6个月及12个月后,研究组牙本质表面牙骨质样组织的沉积率均高于对照组(P<0.05)。结论在牙髓血运重建术中采用BP-RRM治疗年轻恒牙牙髓坏死可获得更好的临床效果,BP-RRM可作为牙髓血运重建术根管充填材料的新选择。

[Abstratc] Objective To investigate the clinical efficacy of pulp revascularization with BP -RRM for pulp necrosis of immature permanent teeth.Methods Forty-eight patients with pulp necrosis of immature permanent teeth were selected and were randomly divided into study group and control group ,with24 cases in each group .Pulp revascularization was conducted in both groups .BP-RRM and MTA were used to seal the upper segment of the root canal in the study group and control group respectively .The effective rates after 6 months of treatment,the deposition rates of cementum-like tissue on the dentin surface after 6 months and 12 months of treatment were compared between the two groups .Results The clinical effective rate of the study group was higher than that of the control group after 6 months of treatment（P〈0.05）.After 6 months and 12 months of treatment,the deposition rates of cementum-like tissue on the dentin surface were higher in the study group compared to the control group （P〈0.05）.Conclusion Pulp revascularization using BP-RRM can obtain a better clinical efficacy for pulp necrosis of immature permanent teeth ,and can be used as a new choice for endodontic filling materials in pulp revascularization .