The University of the Pacific, Arthur A Dugoni School of Dentistry, Department of Restorative Dentistry, San Francisco, CA, USA.
Oper Dent. 2010 Jan-Feb;35(1):20-8. doi: 10.2341/09-038CR1.
The current study estimated pulpal vitality after MTA pulp caps were performed by undergraduate student clinicians. At recall after 12 to 27 months, 51 pulp caps were clinically and radiographically assessed. Kaplan-Meier analyses were used to estimate overall success at 12 and 24 months, determined as the presence of a vital pulp, as well as impact of preoperative variables on pulp vitality at recall. Overall, one-year pulp survival was 67.7%, while the two-year survival rate was 56.2%. Tarone-Ware statistics indicated that neither age of the patient nor size of the exposure ("minimal" or "moderate") and the amount of bleeding ("none," "minimal" or "moderate") had a significant effect on survival rates. Within the limitations of the current study on procedures performed by student clinicians, it may be concluded that, for MTA pulp caps applied to carious exposures in adults, certain preoperative conditions--patient age, exposure size and amount of bleeding--are not predictive of clinical outcome. Considering the comparatively low success rate for the current cohort, more research is needed to define predictive criteria for successful pulp capping with MTA.
本研究评估了本科生临床医生行 MTA 盖髓术后牙髓活力。12-27 个月后复诊时，临床和影像学评估了 51 例盖髓。采用 Kaplan-Meier 分析评估 12 个月和 24 个月时的总体成功率，定义为牙髓活力正常，以及术前变量对牙髓活力的影响。总体上，1 年的牙髓存活率为 67.7%，2 年的存活率为 56.2%。Tarone-Ware 统计表明，患者年龄、暴露面积（“小”或“中”）和出血量（“无”、“小”或“中”）均与存活率无显著相关性。在本研究中，学生临床医生进行的操作存在一定局限性，对于成年人龋源性暴露行 MTA 盖髓术，某些术前条件——患者年龄、暴露面积和出血量——不能预测临床结局。鉴于目前队列的成功率相对较低，需要进一步研究以确定 MTA 盖髓成功的预测标准。
