目的研究根管显微镜技术联合超声技术在牙体牙髓治疗中的临床疗效。方法 160例牙体牙髓病或根尖周病患者,随机分为观察组80例和对照组80例,观察组患者接受根管显微镜技术联合超声技术治疗方法,而对照组患者则接受常规根管治疗方法,比较两组的临床疗效。结果观察组VS对照组:治疗时间(72.8±13.7)min VS(42.4±11.4)min;麻醉时间(21.7±5.3)min VS(46.7±7.3)min;治愈率72.5%VS45.0%;失败率5%VS 15%;并发症发生率2.5%VS 7.5%。观察组除治疗时间有所延长之外,其余各项均明显优于对照组,差异有统计学意义(P<0.05)。结论对牙体牙髓或根尖周病患者进行根管治疗时,根管显微镜技术联合超声技术表现出了更为理想的临床疗效,有加大临床应用和推广的价值。 Objective To study the clinical efficacy of root canal microscopy combined with ultrasonography in the treatment of dental pulp. Methods 160 patients with dental pulp disease or periapical disease were randomly divided into observation group 80 cases and control group 80 cases, observation group patients underwent root canal microscopy combined with ultrasound treatment, while patients in the control group received conventional root Tube treatment, the clinical efficacy of the two groups were compared. Results The observation group and the control group: The treatment time (72.8 ± 13.7) min VS (42.4 ± 11.4) min and the duration of anesthesia (21.7 ± 5.3) min VS (46.7 ± 7.3) min. The cure rate was 72.5% vs 45.0% 5% VS 15%; complication rate 2.5% VS 7.5%. In addition to the observation group was extended treatment time, the rest were significantly better than the control group, the difference was statistically significant (P <0.05). Conclusions Root canal microsurgery combined with ultrasonography showed better clinical curative effect on root pulp of patients with dental pulp or periapical periodontitis, which has the value of increasing clinical application and promotion.