Ugurlu Muhittin
Department of Restorative Dentistry, Faculty of Dentistry, Süleyman Demirel University, Isparta, Turkey.
Restor Dent Endod. 2020 Jun 15;45(3):e36. doi: 10.5395/rde.2020.45.e36. eCollection 2020 Aug.
This study aims to assess the effect of universal adhesives pretreatment on the bond strength of resin-modified glass ionomer cement to dentin.
Fifty caries-free human third molars were employed. The teeth were randomly assigned into five groups ( = 10) based on dentin surface pretreatments: Single Bond Universal (3M Oral Care), Gluma Bond Universal (Heraeus Kulzer), Prime&Bond Elect (Dentsply), Cavity Conditioner (GC) and control (no surface treatment). After Fuji II LC (GC) was bonded to the dentin surfaces, the specimens were stored for 7 days at 37°C. The specimens were segmented into microspecimens, and the microspecimens were subjugated to microtensile bond strength testing (1.0 mm/min). The modes of failure analyzed using a stereomicroscope and scanning electron microscopy. Data were statistically analyzed with one-way analysis of variance and Duncan tests ( = 0.05).
The surface pretreatments with the universal adhesives and conditioner increased the bond strength of Fuji II LC to dentin ( < 0.05). Single Bond Universal and Gluma Bond Universal provided higher bond strength to Fuji II LC than Cavity Conditioner ( < 0.05). The bond strengths obtained from Prime&Bond Elect and Cavity Conditioner were not statistically different ( > 0.05).
The universal adhesives and polyacrylic acid conditioner could increase the bond strength of resin-modified glass ionomer cement (RMGIC) to dentin. The use of universal adhesives before the application of RMGIC may be more beneficial in improving bond strength.
本研究旨在评估通用型粘结剂预处理对树脂改性玻璃离子水门汀与牙本质粘结强度的影响。
使用50颗无龋的人第三磨牙。根据牙本质表面预处理方法将牙齿随机分为五组（每组n = 10）：Single Bond Universal（3M口腔护理产品）、Gluma Bond Universal（贺利氏古莎）、Prime&Bond Elect（登士柏）、窝洞调节剂（GC）和对照组（无表面处理）。将Fuji II LC（GC）粘结到牙本质表面后，标本在37°C下储存7天。将标本切割成微标本，并对微标本进行微拉伸粘结强度测试（1.0 mm/分钟）。使用体视显微镜和扫描电子显微镜分析断裂模式。数据采用单因素方差分析和邓肯检验进行统计学分析（α = 0.05）。
使用通用型粘结剂和调节剂进行表面预处理可提高Fuji II LC与牙本质的粘结强度（P < 0.05）。Single Bond Universal和Gluma Bond Universal对Fuji II LC的粘结强度高于窝洞调节剂（P < 0.05）。Prime&Bond Elect和窝洞调节剂获得的粘结强度无统计学差异（P > 0.05）。
通用型粘结剂和聚丙烯酸调节剂可提高树脂改性玻璃离子水门汀（RMGIC）与牙本质的粘结强度。在应用RMGIC之前使用通用型粘结剂可能更有利于提高粘结强度。
