Department of Pediatric Dentistry, Dental School, Marmara University, Istanbul, Turkey,
Department of Pediatric Dentistry, Dental School, Marmara University, Istanbul, Turkey.
Med Princ Pract. 2021;30(1):73-79. doi: 10.1159/000508676. Epub 2020 May 15.
We assessed the clinical survival of a high-viscosity glass ionomer (HVGI) at the 2-year follow-up to restore molar incisors severely affected by hypomineralization after selective carious tissue removal (SCR). The null hypothesis tested was that there are no differences in the overall survival times in the categories of the variables of interest.
A total of 134 fully erupted first molar incisors with hypomineralization, cavitated and with moderate-to-deep carious lesions without hypersensitivity or pain (MIH treatment need index 2a-c), were included in the study. HVGI (Equia Forte®; GC, Tokyo, Japan) restorations were applied after SCR to soft carious dentin. The follow-up lasted 2 years. The end point was defined as the absence of endodontic and restorative complications. Two-year, and 18-, 12-, and 6-month survival probabilities and standard errors were calculated using the Kaplan-Meier method. Survival probabilities according to patient gender, jaw, and lesion severity groups were compared using the log-rank test. Restorations were evaluated using the modified US Public Health Service criteria.
HVGI restorations showed cumulative survival probabilities of 95.5% at 6 months, 94% at 12 months, 87.5% at 18 months, and 87.5% at 24 months. Survival probabilities according to patient gender, jaw, and lesion severity groups were not statistically significantly different (p > 0.05). Therefore, the null hypothesis was accepted.
Following SCR, HVGI restoration provided moderate survival probabilities, suggesting that the SCR technique is effective.
评估在选择性去腐（SCR）后 2 年随访时，高粘性玻璃离子（HVGI）用于修复因矿化不足而严重受损的磨牙切牙的临床存活率。检验的零假设是，在感兴趣的变量类别中，总体存活时间没有差异。
本研究共纳入 134 颗完全萌出的第一磨牙切牙，这些牙齿因矿化不足而出现龋损，有空腔，且有中到深龋损，但无过敏或疼痛（MIH 治疗需要指数 2a-c）。在 SCR 后，用 HVGI（GC，东京，日本的 Equia Forte®）修复剂修复软化的腐质牙本质。随访时间为 2 年。终点定义为无牙髓和修复并发症。使用 Kaplan-Meier 法计算 2 年、18 个月、12 个月和 6 个月的生存率及其标准误差。使用对数秩检验比较不同患者性别、颌骨和病变严重程度组的生存率。根据改良美国公共卫生服务标准评估修复体。
HVGI 修复体在 6 个月时的累积生存率为 95.5%，12 个月时为 94%，18 个月时为 87.5%，24 个月时为 87.5%。根据患者性别、颌骨和病变严重程度组的生存率无统计学差异（p>0.05）。因此，零假设被接受。
SCR 后，HVGI 修复提供了中等的存活率，表明 SCR 技术是有效的。
