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目的观察比较纳米羟基磷灰石/聚酰胺66糊剂(nHA)根充术后疼痛情况。方法不可复性牙髓炎及牙外伤患者共183颗患牙进行根管治疗,分氧化锌组、vitapex组、nHA组糊剂+牙胶尖充填。充填后3d复诊,检查记录疼痛情况。结果急性反应率分别为:nHA组2.08%,vitapex组3.13%,ZOE组16.90%,nHA组和vitapex差异无统计学意义(P>0.05),nHA、vitapex组和ZOE组均差异有统计学意义(P<0.05)。结论 nHA糊剂和Vitapex根充糊剂充填术后急性反应程度好于氧化锌丁香油糊剂。nHA糊剂有一定的应用前景。
Objective To observe and compare the postoperative pain of nano-hydroxyapatite / polyamide 66 paste (nHA). Methods Irreducible pulpitis and tooth trauma in a total of 183 teeth for root canal therapy, divided into zinc oxide group, vitapex group, nHA group paste + gutta tip filling. 3d after filling referral, check the record of pain. Results The rates of acute reaction were 2.08% in the nHA group, 3.13% in the vitapex group and 16.90% in the ZOE group, respectively. There was no significant difference between the nHA group and the vitapex group (P> 0.05). There was significant difference between the nHA, vitapex and ZOE groups (P <0.05). Conclusions The acute reaction of nHA paste and Vitapex root filling paste is better than that of zinc oxide and clove oil paste. nHA paste has certain application prospects.