Post-Graduate Program in Pediatric Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Post-Graduate Program in Pediatric Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil,
Am J Dent. 2022 Apr;35(2):97-102.
To investigate the survival of adhesive restorations after selective carious tissue removal to soft dentin in primary molars.
This two-arm randomized clinical trial included 62 subjects (5.9 years ± 1.7) and 144 primary molars presenting deep active dentin carious lesions. The sample was randomly assigned based on restorative material: universal adhesive (Scotchbond Universal) plus bulk fill resin composite (Filtek Bulk Fill Posterior Restorative) and resin-modified glass-ionomer cement (Vitremer). Two operators performed all restorative procedures. Restorations were evaluated at 6, 12, and 18 months using the FDI World Dental Federation criteria. Survival estimates for restorations' longevity were evaluated with Kaplan-Meier method. Multivariate Cox regression analysis with shared frailty was used to assess the factors associated with failures (P< 0.05).
Restorative material did not influence the restorations' survival (HR 1.56 95% CI 0.78-3.13; P= 0.12). The survival rates at 18 months of follow-up were 62.9% and 76.8% (AFR: 26.6% and 16.1%) for resin-modified glass-ionomer cement and bulk fill resin composite restorations, respectively (long-rank P= 0.14). Boys had higher risk of failure in their restorations (HR: 2.64, 95% CI: 1.29-5.40). Restorations performed by a less experienced operator had 3.26 times more risk of failure (P= 0.001).
The effectiveness of resin-modified glass-ionomer cement (Vitremer) and bulk fill resin composite (Filtek Bulk Fill Posterior Restorative) restorations after selective removal of carious tissue to soft dentin in primary molars was similar at 18 months of follow-up.
研究在乳磨牙深龋近髓病变中选择性去除腐质至软化牙本质后，黏接修复的存活力。
本项双臂随机临床试验纳入 62 名（5.9 岁±1.7 岁）、144 颗患有深活性牙本质龋损的乳磨牙患者。样本根据修复材料随机分配：通用黏结剂（Scotchbond Universal）加团块状填充型树脂复合材料（Filtek Bulk Fill Posterior Restorative）和树脂改性玻璃离子水门汀（Vitremer）。由两名操作者完成所有修复程序。使用 FDI 世界牙科联合会标准，在 6、12 和 18 个月时评估修复体的情况。使用 Kaplan-Meier 法评估修复体长期存活率。使用共享脆弱性的多变量 Cox 回归分析评估与失败相关的因素（P<0.05）。
修复材料并未影响修复体的存活力（HR 1.56 95%CI 0.78-3.13；P=0.12）。在 18 个月的随访中，树脂改性玻璃离子水门汀和团块状填充型树脂复合材料修复体的存活率分别为 62.9%和 76.8%（调整后失败率：26.6%和 16.1%）（长时间秩检验 P=0.14）。男孩的修复体失败风险更高（HR：2.64，95%CI：1.29-5.40）。由经验较少的操作者进行的修复体失败风险增加 3.26 倍（P=0.001）。
在乳磨牙深龋近髓病变中选择性去除腐质至软化牙本质后，树脂改性玻璃离子水门汀（Vitremer）和团块状填充型树脂复合材料（Filtek Bulk Fill Posterior Restorative）修复体的有效性在 18 个月的随访中相似。
