Deptartment of Paedodontics, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Int Endod J. 2010 May;43(5):413-8. doi: 10.1111/j.1365-2591.2010.01695.x.
To compare the clinical and radiographic response of primary teeth to vital pulpotomy using mineral trioxide aggregate (MTA) or formocresol (FC).
A group of 17 children aged 4-9 were selected from those referred to the Paedodontic Department at Shahid Beheshti University, Dental School. Cases with at least two matching teeth were selected (40 teeth), showing signs of pulp involvement. A pulpotomy procedure was carried out in all cases with FC in control teeth whilst MTA was placed in experimental teeth. Clinical and radiographic evaluations were performed at 1-, 6-, 12- and 24-month recall. Statistical analysis using a Fischer exact test was performed on the data to determine significant differences between the groups.
Overall, 22 second and 18 first primary molars were included. The gender ratio was one male to three female. No significant difference was found between the clinical and radiographic outcomes of the two groups at 6-, 12- and 24-month follow-up (P > 0.05). Internal resorption was seen significantly more often in FC cases after 12 months than MTA cases. Overall radiographic appearance of normal structures at 24th month was seen in more than 95% of the cases in MTA and 90% in the FC-treated group (P > 0.05).
Mineral trioxide aggregate for pulp treatment of primary teeth can be considered a replacement for FC.
比较使用三氧化矿物凝聚体（MTA）或甲醛甲酚（FC）对恒牙行活髓切断术后的临床和影像学反应。
从沙希德贝赫什提大学牙科学院儿科选择了一组 17 名 4-9 岁的儿童。选择至少有两颗匹配牙齿的病例（40 颗牙齿），这些牙齿有牙髓受累的迹象。所有病例均行活髓切断术，对照组采用 FC，实验组采用 MTA。在 1、6、12 和 24 个月的随访时进行临床和影像学评估。使用 Fisher 确切检验对数据进行统计学分析，以确定两组之间的显著差异。
共纳入 22 颗第二乳磨牙和 18 颗第一乳磨牙。性别比例为 1 名男性对 3 名女性。在 6、12 和 24 个月的随访中，两组的临床和影像学结果无显著差异（P>0.05）。12 个月后，FC 组的内吸收明显多于 MTA 组。在 24 个月时，MTA 组和 FC 治疗组中，超过 95%的病例的正常结构的影像学表现正常（P>0.05）。
MTA 可作为 FC 的替代品，用于治疗恒牙的牙髓。
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