乳牙牙髓切断术的临床和影像学评估：一项 18 个月的临床随机对照试验。

Clinical and radiographic evaluation of pulpectomy in primary teeth: a 18-months clinical randomized controlled trial.

机构信息

Department of Pediatric Dentistry, First clinical Division, Peking University School and Hospital of Stomatology, Beijing, China.

Department of Prosthodontics, Beijing Stomatological Hospital&School of Stomatology, Capital Medical University, 4 Tian Tan Xi Li, Beijing, 100050, People's Republic of China.

出版信息

Head Face Med. 2017 Oct 27;13(1):12. doi: 10.1186/s13005-017-0145-1.

BACKGROUND

To avoid untoward changes when primary teeth are replaced by permanent teeth, resorption of the material used in primary teeth root canal filling should occur at the same rate as root resorption. The Aim of this study was to compare the success rates of a mixed primary root canal filling (MPRCF, ingredients: zinc oxide-eugenol [ZOE], iodoform, calcium hydroxide) to those of ZOE and Vitapex in pulpectomised primary molars.

METHODS

One hundred and sixty primary molars from 155 children (average age 5.88 ± 1.27 years) underwent two-visit pulpectomy using one of the three materials. The clinical and radiographic findings at 6, 12 and 18 months were assessed.

RESULTS

At 6 and 12 months, the MPRCF and ZOE success rates were 100%. The Vitapex group showed clinical success rate and radiographic success rate of 100 and 94.5% at 6 months, and 80.4 and 60.7% at 12 months. The 18-month clinical success rates of the MPRCF, ZOE and Vitapex were 96.2, 92.2 and 71.4% and radiographic success rates were 92.5, 88.2 and 53.6%, respectively. There was a statistically significant difference in the success rates between MPRCF and Vitapex and no significant differences between MPRCF and ZOE. More MPRCF were resorbed at same rate with roots than ZOE and Vitapex. Early resorption of root filling resulted in more failure.

CONCLUSIONS

The mixture of ZOE, iodoform and calcium hydroxide can be considered an effective root canal filling material in pulp involved primary teeth and had no adverse effect on tooth replacement.

TRIAL REGISTRATION

ChiCTR-TRC-14004938 . Registered 13 July 2014.

背景

为避免乳牙被恒牙替换时出现不良变化，乳牙根管充填材料的吸收速度应与牙根吸收速度相同。本研究旨在比较混合性乳牙根管充填（MPRCF，成分：氧化锌丁香酚[ZOE]、碘仿、氢氧化钙）与 ZOE 和 Vitapex 在牙髓切除的乳磨牙中的成功率。

方法

160 颗来自 155 名儿童（平均年龄 5.88±1.27 岁）的乳磨牙，采用三种材料中的一种进行两次就诊牙髓切除术。分别在 6、12 和 18 个月时评估临床和放射学结果。

结果

在 6 和 12 个月时，MPRCF 和 ZOE 的成功率均为 100%。Vitapex 组在 6 个月时的临床成功率和放射学成功率分别为 100%和 94.5%，在 12 个月时分别为 80.4%和 60.7%。MPRCF、ZOE 和 Vitapex 在 18 个月时的临床成功率分别为 96.2%、92.2%和 71.4%，放射学成功率分别为 92.5%、88.2%和 53.6%。MPRCF 与 Vitapex 之间的成功率存在统计学差异，而 MPRCF 与 ZOE 之间的成功率无显著差异。MPRCF 与 ZOE 和 Vitapex 相比，以相同速度吸收的根更多。根充的早期吸收导致更多的失败。