Abstract：
Indirect pulp therapy (IPT) is a common conservative treatment for deep dental caries. However, the potential risk factors for the prognosis of IPT have not been well studied. This study retrospectively investigated the success rate of IPT in treating primary molars with deep caries and the factors potentially affecting the two-year success rate. A total of 303 primary molars in 202 children (106 boys and 96 girls) were included in this study. These primary molars were identified as having deep caries by clinical and radiographic examinations and were treated with IPT. The factors potentially affecting the IPT success rate were analyzed after two years of follow-up. The results indicated that the two-year IPT success rate was 86% (262/303). The success rate of primary molars with and without stainless steel crowns was 96% (120/125) and 80% (142/178), respectively. Primary molars treated with stainless steel crowns showed a significantly lower risk of failure (hazard ratio (HR) = 0.18, 95% confidence interval (CI): (0.10, 0.34), p = 0.01). There were no significant differences in other factors, including gender (male vs. female), age (preschool vs. school age), cooperation level (Frankl 2 vs. 3 or 4 scales), arch type (maxillary vs. mandibular), tooth type (first vs. second primary molar), or pulp capping material (calcium hydroxide vs. glass ionomer cement). IPT is an effective, conservative treatment modality for primary molars with deep caries. Stainless steel crowns could significantly improve the IPT success rate.
摘要：
间接牙髓疗法（IPT）是深龋的常用保守治疗方法。然而,IPT预后的潜在危险因素尚未得到很好的研究.这项研究回顾性调查了IPT治疗原发性磨牙伴深龋的成功率以及可能影响两年成功率的因素。这项研究共包括202名儿童（106名男孩和96名女孩）的303个初级磨牙。通过临床和影像学检查，这些原发性磨牙被确定为有深龋，并接受IPT治疗。随访2年后,对影响IPT成功率的因素进行分析。结果表明，两年IPT成功率为86％（262/303）。有和没有不锈钢冠的初级磨牙的成功率为96％（120/125）和80％（142/178），分别。用不锈钢牙冠处理的原发性磨牙显示出明显较低的失败风险（风险比（HR）=0.18，95％置信区间（CI）：（0.10，0.34），p=0.01)。其他因素无显著差异,包括性别(男性vs.female),年龄(学龄前vs.学龄)，合作水平(弗兰克尔2vs.3或4个刻度)，弓型(上颌vs.下颌)，牙齿类型(第一vs.第二伯磨牙)，或纸浆封盖材料(氢氧化钙与玻璃离聚物水泥)。IPT是一种有效的,原发性磨牙伴深龋的保守治疗方式。不锈钢冠可以显著提高IPT成功率。
