STA^(TM)韧带内注射对急性牙髓炎诊断和治疗的作用探讨

Feasibility of intraligamentary injection with a computer-controlled local anesthetic delivery system STA^(TM) in the treatment of acute pulpitis

目的:观察STATM系统韧带内注射在急性牙髓炎定位诊断中的作用。方法:将96例急性牙髓炎或慢性牙髓炎急性发作的患者,采用单纯随机法分为试验组和对照组。试验组(n=48)采用STATM系统韧带内注射麻醉下确诊后开髓、拔髓;对照组(n=48)采用常规中空注射器抽取相同麻醉药手持推注局部浸润或阻滞麻醉确诊后,同样进行开髓、拔髓,记录确诊、麻药起效、失效时间;麻药用量。请患者自行评估疼痛程度。结果:试验组的确诊时间、麻药生效及失效时间、麻药用量明显少于对照组(P<0.05),麻药注射过程中试验组疼痛明显轻于对照组(P<0.05),上颌牙及下颌前牙、下颌前磨牙开髓、拔髓中的镇痛效果试验组与对照组无显著差异(P>0.05);下颌磨牙开髓、拔髓中的镇痛效果试验组与对照组有显著差异(P<0.05)。结论:STATM系统韧带内注射在急性牙髓炎诊断及治疗中,有较好的临床应用价值。尤其在定位患牙和下颌磨牙镇痛中,能发挥明显的作用。

Objective：To observe the effect of the intraligamentary injection,administered with a computer-controlled local anesthetic delivery system STATM（Single Tooth Anesthesia）,in the treatment of acute pulpitis.Methods：96 patients with acute pulpitis or acute episode of chronic pulpitis were randomly divided into experimental group and control group.Before diagnosing and exposing the pulp,intraligamentary injection with the STATM system was performed in the experimental group（n=48） and traditional syringe injection technique was conducted in the control（n=48）.The time cost on final diagnosis,reaction,expiration and the dosage of the anesthetic were recorded.Then the patients were asked to evaluate their pain according to the pain questionnaire.Results：The time cost on final diagnosis,reaction and expiration was shorter and the dosage of the anesthefic was less in experimental group（P0.05）.During the anesthesia process,pain and dental fear in experimental group were less than those in the control（P0.05）.The intraligamentary injection was more effective in the pain control in the treatment of in mandibular posterior teeth compared with traditional syringe injection technique.Conclusion：The intraligamentary injection,administered with the STATM is feasible in the treatment of acute pulpitis.