Pradelle-Plasse Nelly, Mocquot Caroline, Semennikova Katherine, Colon Pierre, Grosgogeat Brigitte
Department of Conservative Dentistry - Endodontics, Faculty of Dental Surgery, University of Paris, Paris, France.
Rothschild Hospital, Assistance Publique Hôpitaux de Paris, Paris, France.
Restor Dent Endod. 2020 Dec 9;46(1):e3. doi: 10.5395/rde.2021.46.e3. eCollection 2021 Feb.
This study aimed to evaluate the interface between a calcium silicate cement (CSC), Biodentine and dental adhesives in terms of sealing ability.
Microleakage test: 160 standardized class II cavities were prepared on 80 extracted human molars. The cavities were filled with Biodentine and then divided into 2 experimental groups according to the time of restoration: composite resin obturation 15 minutes after Biodentine handling (D0); restoration after 7 days (D7). Each group was then divided into 8 subgroups ( = 5) according to the adhesive system used: etch-and-rinse adhesive (Prime & Bond); self-etch adhesive 2 steps (Optibond XTR and Clearfil SE Bond); self-etch adhesive 1 step (Xeno III, G-aenial Bond, and Clearfil Tri-S Bond); and universal used as etch-and-rinse or self-etch (ScotchBond Universal ER or SE). After thermocycling, the teeth were immersed in a silver nitrate solution, stained, longitudinally sectioned, and the Biodentine/adhesive percolation was quantified. Scanning electron microscopic observations: Biodentine/adhesive interfaces were observed.
A tendency towards less microleakage was observed when Biodentine was etched (2.47%) and when restorations were done without delay (D0: 4.31%, D7: 6.78%), but this was not significant. The adhesives containing 10-methacryloyloxydecyl dihydrogen phosphate monomer showed the most stable results at both times studied. All Biodentine/adhesive interfaces were homogeneous and regular.
The good sealing of the CSC/adhesive interface is not a function of the system adhesive family used or the cement maturation before restoration. Biodentine can be used as a dentine substitute.
本研究旨在评估硅酸钙水门汀（CSC）、Biodentine与牙科粘合剂之间在封闭能力方面的界面情况。
微渗漏试验：在80颗拔除的人类磨牙上制备160个标准化的II类洞。用Biodentine填充这些洞，然后根据修复时间分为2个实验组：在Biodentine处理后15分钟进行复合树脂充填（D0）；7天后修复（D7）。然后根据所使用的粘合剂系统将每组再分为8个亚组（每组n = 5）：酸蚀冲洗粘合剂（Prime & Bond）；两步自酸蚀粘合剂（Optibond XTR和Clearfil SE Bond）；一步自酸蚀粘合剂（Xeno III、G-aenial Bond和Clearfil Tri-S Bond）；以及用作酸蚀冲洗或自酸蚀的通用型粘合剂（ScotchBond Universal ER或SE）。热循环后，将牙齿浸入硝酸银溶液中，染色，纵向切片，并对Biodentine/粘合剂的渗漏情况进行量化。扫描电子显微镜观察：观察Biodentine/粘合剂界面。
当对Biodentine进行酸蚀时（2.47%）以及立即进行修复时（D0：4.31%，D7：6.78%），观察到微渗漏有减少的趋势，但不显著。在研究的两个时间点，含有10-甲基丙烯酰氧基癸基二氢磷酸酯单体的粘合剂显示出最稳定的结果。所有Biodentine/粘合剂界面均均匀且规则。
CSC/粘合剂界面的良好封闭性与所使用的粘合剂系统类别或修复前水门汀的成熟度无关。Biodentine可作为牙本质替代物使用。
