Patel Chhaya, Patel Megha, Panchal Margi, Bhatt Rohan, Patel Foram, Makwani Disha
Department of Pediatric and Preventive Dentistry, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India.
Int J Clin Pediatr Dent. 2024 Sep;17(9):1035-1040. doi: 10.5005/jp-journals-10005-2887.
Indirect pulp therapy (IPT) is a conservative treatment approach that leaves the deepest caries adjacent to the pulp undisturbed in an effort to avoid pulp exposure. The result of IPT is primarily dependent on the biocompatibility, sealing capacity, adaptability of the overlying restoration to underlying dentin, and strength of the liner material utilized.
To evaluate shear bond strength (SBS) and microleakage of mineral trioxide aggregate (e-MTA) and biodentine when restored with glass ionomer cement (GIC) and composite resin after their initial set time.
Around 40 extracted caries-free permanent molars were randomly divided into two groups according to the liner material used (group I (e-MTA) and group II-biodentine). Each group was further divided into subgroups A1, A2, B1, and B2, where A1 and B1 received GIC and A2 and B2 received composite resin restoration after the initial set time. Half of the samples from each subgroup were allotted to two test groups of SBS and microleakage evaluation. The SBS was evaluated using a universal testing machine, and microleakage was assessed using a dye penetration test. One-way analysis of variance (ANOVA) was used for intergroup comparison, and the paired sample -test was used for intragroup comparison. Categorical data were analyzed using a nonparametric test at the 5% level of significance using Statistical Package for the Social Sciences (SPSS) version 21 for Windows.
A statistically significant difference ( = 0.001) was found in SBS between the group (e-MTA) + composite and biodentine + composite, where the latter group showed the highest SBS. Microleakage was highest in the group (e-MTA) + GIC (0.6 ± 0.894) and lowest in the group biodentine + composite (0.2 ± 0.447). However, no statistically significant difference was found in microleakage among all four groups.
Within the constraints of this study, biodentine can be suggested as the pulp capping agent to be restored with composite resin restoration after its initial set time.
Patel C, Patel M, Panchal M, Evaluation of Microleakage and Shear Bond Strength of Two Different Calcium-based Silicate Indirect Pulp Capping Agents When Restored with Glass Ionomer Cement and Composite Resin Restoration: A Comparative Study. Int J Clin Pediatr Dent 2024;17(9):1035-1040.
间接盖髓术（IPT）是一种保守的治疗方法，它使紧邻牙髓的最深龋洞保持原状，以避免牙髓暴露。IPT的效果主要取决于生物相容性、封闭能力、上层修复体与下层牙本质的适应性以及所用垫底材料的强度。
评估初始凝固时间后，用玻璃离子水门汀（GIC）和复合树脂修复时，矿物三氧化物凝聚体（e-MTA）和生物活性玻璃陶瓷的剪切粘结强度（SBS）和微渗漏情况。
根据所用垫底材料，将约40颗拔除的无龋恒牙随机分为两组（I组（e-MTA）和II组 - 生物活性玻璃陶瓷）。每组再进一步分为亚组A1、A2、B1和B2，其中A1和B1在初始凝固时间后接受GIC修复，A2和B2接受复合树脂修复。每个亚组的一半样本被分配到SBS和微渗漏评估的两个测试组。使用万能试验机评估SBS，使用染料渗透试验评估微渗漏。组间比较采用单因素方差分析（ANOVA），组内比较采用配对样本t检验。使用适用于Windows的社会科学统计软件包（SPSS）版本21，在5%显著性水平下使用非参数检验分析分类数据。
在（e-MTA）+复合树脂组和生物活性玻璃陶瓷+复合树脂组之间，SBS存在统计学显著差异（P = 0.001），后一组显示出最高的SBS。微渗漏在（e-MTA）+ GIC组中最高（0.6±0.894），在生物活性玻璃陶瓷+复合树脂组中最低（0.2±0.447）。然而，所有四组之间的微渗漏没有发现统计学显著差异。
在本研究的限制范围内，生物活性玻璃陶瓷可被建议作为初始凝固时间后用复合树脂修复的盖髓剂。
帕特尔C，帕特尔M，潘查尔M，两种不同钙基硅酸盐间接盖髓剂在用玻璃离子水门汀和复合树脂修复时的微渗漏和剪切粘结强度评估：一项比较研究。《国际临床儿科牙科学杂志》2024；17（9）：1035 - 1040。
