Şahin Mantı Arzu, Kedici Alp Cemile
Department of Endodontics, Faculty of Dentistry, Gazi University, Bişkek (8.) Street, 1. Road, No: 8, Emek, 06490, Ankara, Türkiye.
Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Bişkek (8.) Street, 1. Road, No: 8, Emek, 06490, Ankara, Türkiye.
BMC Oral Health. 2025 Jan 31;25(1):170. doi: 10.1186/s12903-025-05563-9.
Diabetes mellitus can alter the physical and mechanical properties of dentin, compromising bonding. Furthermore, residual sealer on dentin may inhibit the bond strength. The aim of this study was to evaluate and compare the effects of different cleaning protocols on the adhesive bond strength of composite to coronal dentin contaminated with a tricalcium silicate (TCS)based root canal sealer in diabetic and non-diabetic patients.
Diabetic (n = 50) and non-diabetic (n = 50) teeth were randomly divided into two groups. Coronal dentin surface specimens were obtained. The samples were contaminated with a TCS based sealer and then divided into five subgroups, four different cleaning procedures (dry cotton, wet cotton, ultrasonic-15, ultrasonic-30) and a control group (n = 10). The samples were restored with composite. A standard shear bond strength (SBS) test was performed. All failures were categorized as adhesive, cohesive or mixed. Data were analyzed using Independent Samples t-test and One-Way Analysis of Variance at a significance level of p < 0.05.
SBS values were lower in diabetic dentin group than in non-diabetic dentin group. Dry cotton showed the lowest SBS value in both main groups. Ultrasonic-15 and ultrasonic-30 groups showed equal SBS values in the non-diabetic group (p = 0.001), while the highest SBS was seen in the ultrasonic-30 subgroup in the diabetic dentin group. The highest adhesive failure was observed in the diabetic dentin group, and the dominant failure type was mixed for both groups.
The use of dry cotton was an insufficient method for removing bioceramic root canal sealer residues from coronal dentin in both the diabetic and non-diabetic patients. 15 s of ultrasonic activation was effective for removing bioceramic root canal sealer remnants from the non-diabetic coronal dentin. However, for the coronal dentin in the diabetic group, 30-sec ultrasonic activation was the most effective method for removing bioceramic root canal sealer remnants.
糖尿病可改变牙本质的物理和力学性能，影响粘结效果。此外，牙本质上残留的封闭剂可能会抑制粘结强度。本研究的目的是评估和比较不同清洁方案对糖尿病患者和非糖尿病患者中被硅酸三钙（TCS）基根管封闭剂污染的冠部牙本质与复合树脂之间粘结强度的影响。
将糖尿病患者（n = 50）和非糖尿病患者（n = 50）的牙齿随机分为两组。获取冠部牙本质表面样本。样本被TCS基封闭剂污染，然后分为五个亚组，四种不同的清洁程序（干棉球、湿棉球、超声15秒、超声30秒）和一个对照组（n = 10）。样本用复合树脂修复。进行标准剪切粘结强度（SBS）测试。所有失败情况分为粘结性、内聚性或混合性。数据采用独立样本t检验和单因素方差分析，显著性水平为p < 0.05。
糖尿病牙本质组的SBS值低于非糖尿病牙本质组。干棉球在两个主要组中显示出最低的SBS值。超声15秒和超声30秒组在非糖尿病组中显示出相等的SBS值（p = 0.001），而在糖尿病牙本质组中，超声30秒亚组的SBS值最高。糖尿病牙本质组观察到最高的粘结失败率，两组的主要失败类型均为混合性。
对于糖尿病患者和非糖尿病患者，使用干棉球从冠部牙本质上去除生物陶瓷根管封闭剂残留是一种不充分的方法。15秒的超声激活对于从非糖尿病冠部牙本质上去除生物陶瓷根管封闭剂残留是有效的。然而，对于糖尿病组的冠部牙本质，30秒的超声激活是去除生物陶瓷根管封闭剂残留的最有效方法。
