Professor of Paediatric Dentistry, Cairo University, Egypt.
Dean, College of Dental Medicine, QU Health Qatar University, Doha, Qatar.
Eur J Paediatr Dent. 2021;22(1):19-25. doi: 10.23804/ejpd.2021.22.01.04.
There is insufficient evidence on the outcome of pulpotomies in carious exposed young permanent molars with newer biomaterials. This study aimed to compare Mineral Trioxide Aggregate (MTA) and Biodentine as pulpotomy materials in carious exposed vital immature mandibular first permanent molars.
Study design: Sixty immature first mandibular permanent molars, with carious exposure were randomly assigned to an MTA or Biodentine group in a split-mouth design. After the amputation of the coronal pulp, the pulp stumps were covered with one of the study materials and coronal restorations placed. Blinded clinical and radiographic evaluations were performed at baseline. Following this there were evaluations at 6, 12 and 18 months where comparisons between and within the two groups were made.
A high success was observed in both groups for all outcome measures for clinical success, with no significant difference between them. The mean survival time for the Biodentine and MTA groups was (17.8 and 18 months) with 95% confidence interval (17.4-18.2) and (18 .0-18.0) months respectively. Similarly, there were no significant differences between the Biodentine and MTA groups for radiographic success (P<0.001) with an increase in root length and increasing apical closure observed in both groups.
Both materials were equally effective in the treatment of cariously exposed vital immature mandibular first permanent molars.
对于有龋暴露的年轻恒牙,使用新型生物材料行活髓切断术的效果证据不足。本研究旨在比较三氧化矿物凝聚体(MTA)和 Biodentine 作为有龋暴露的年轻恒磨牙活髓切断术的材料。
研究设计:60 颗下颌第一恒磨牙,因龋暴露,采用分口设计随机分为 MTA 组和 Biodentine 组。冠髓切断后,用研究材料之一覆盖牙髓残端,并进行冠方修复。在基线时进行盲法临床和放射学评估。随后在 6、12 和 18 个月进行评估,比较两组之间和组内的差异。
两组在所有临床成功的指标上均表现出较高的成功率,两组之间无显著差异。Biodentine 组和 MTA 组的平均生存时间分别为(17.8 和 18 个月),95%置信区间分别为(17.4-18.2)和(18.0-18.0)个月。同样,Biodentine 组和 MTA 组的放射学成功率也无显著差异(P<0.001),两组的根长均增加,根尖闭合也在增加。
两种材料在治疗有龋暴露的年轻恒磨牙活髓切断术中同样有效。