【摘要】 目的:观察改良T型法治疗下颌第三磨牙近中阻生牙的疗效。方法:将80例下颌第三磨牙近中阻生牙患者随机分为观察组(40例)和对照组(40例),观察组采用改良T型法拔除下颌第三磨牙近中阻生牙,对照组采用T型法拔除下颌第三磨牙近中阻生牙。比较两组患者拔牙所需时间、术后疼痛、肿胀及张口功能情况。结果:观察组患者拔除下颌第三磨牙近中阻生牙所需平均时间[(41.25±6.13)min]低于对照组[(45.47±6.49)min](P<0.05)。观察组拔牙术后24 h数字疼痛分级法(NRS)疼痛评分[(4.13±1.52)分]低于对照组[(5.25±1.26)分](P<0.05);且观察组患者拔牙术后24 h疼痛、面部肿胀程度及张口受限程度低于对照组(P<0.05)。结论:与T型法相比,改良T型法在拔除下颌第三磨牙近中阻生牙时,具有操作时间短,术后疼痛、肿胀轻,张口功能恢复快等优势,值得重视及应用。更多还原

【Abstract】 Objective:To observe the clinical effect of modified T-shaped technique for the treatment of mesially impacted mandibular third molars.Methods:Eighty patients with mesially impacted mandibular third molars were randomized to observational group(n=40)and control group(n=40).Patients in the observational group were treated with modified T-type technique, and those in the control group were managed with conventional T-type method.The two groups were compared regarding the time of tooth extraction, postoperative pain, incidence of swelling and mouth opening.Results:The average time to extract the impacted mandibular third molars was shorter in the observational group than in the control group[(41.25±6.13)min vs.(45.47±6.49)min, P<0.05).Patients in the observational group had lower NRS pain scores at 24 h after operation(4.13±1.52 vs. 5.25±1.26,P<0.05)as well as lower incidence of pain, facial swelling and mouth opening limitation than those in the control group(all P<0.05).Conclusion:Modified T-type technique is worthy of clinical application to the treatment of mesially impacted mandibular third molars, because it is superior to conventional T-type procedure, including shortened operative time, lower pain and swelling, and faster recovery of mouth opening.更多还原