Effects of the application sequence of calcium-containing desensitising pastes during etch-and-rinse adhesive restoration
Effects of the application sequence of calcium-containing desensitising pastes during etch-and-rinse adhesive restoration
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含钙脱敏糊剂在蚀刻和冲洗粘合剂修复过程中的应用顺序的影响
DOI：
10.1016/j.jdent.2014.03.018
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发表时间：
2014
影响因子：
4.4
通讯作者：
Huang Cui
中科院分区：
文献类型：
--
作者：
Yang Hongye;Pei D;an;Chen Zhiyong;Lei Jinmei;Zhou Liqun;Huang Cui
目的评价含钙脱敏糊剂在酸蚀-冲洗（E&R）粘接修复中不同应用顺序对牙本质粘接效果和牙本质小管阻塞的影响。第1组用35%磷酸溶液腐蚀15 s。第2-4组分别用不同的含钙脱敏剂治疗，包括含精氨酸-碳酸钙（Arg-CaCO 3）的糊剂、含酪蛋白磷酸肽-无定形磷酸钙（CPP-ACP）的糊剂和含磷硅酸钙钠（Novamin）的糊剂。然后用35%磷酸溶液腐蚀15 s。第5-7组首先进行蚀刻，然后分别用含Arg-CaCO 3-、CPP-ACP-和Novamin的脱敏剂处理。在每组中，将样本平均分配到两个亚组（n= 5）中，以使用两步E&R粘合剂Adper SingleBond 2（SB）或三步E&R粘合剂Adper ScotchBond Multi-Purpose（SBMP）粘合。采用体视显微镜和场发射扫描电子显微镜（FESEM）测试了微拉伸粘结强度（MTBS）并分析了其断裂模式。8个额外的牙本质磁盘准备，以评估小管闭塞之前，使用FESEM.ResultsThe应用程序顺序的含钙脱敏糊剂没有显着影响MTBS无论两步SB（P> 0.05）或三步SBMP E&R粘合剂（P> 0.05）。有效的牙本质小管闭塞观察蚀刻脱敏modelofetching-desensitizing.Conclusionsapplying含钙脱敏剂（特别是Arg-CaCO 3-和Novamin为基础的）后，蚀刻在E&R粘接修复可以实现有效的小管闭塞，而不影响粘接强度。
ObjectivesTo evaluate the effects of different application sequence of calcium-containing desensitising pastes on bonding effectiveness and tubule occlusion during etch-and-rinse (E&R) adhesive restoration.MethodsSeventy molars were sectioned parallel to the occlusal plane, polished and randomly divided into seven groups (n= 10). Group 1 was etched with 35% phosphoric acid for 15 s. Groups 2–4 were treated with different calcium-containing desensitisers, including an arginine-calcium carbonate (Arg-CaCO3)-containing paste, a casein phosphopeptide-amorphous calcium phosphate (CPP-ACP)-containing paste and a calcium-sodium phosphosilicate (Novamin)-containing paste, respectively. Afterward, these groups were etched with 35% phosphoric acid for 15 s. Groups 5–7 were initially etched and then treated with Arg-CaCO3-, CPP-ACP- and Novamin-containing desensitisers, respectively. In each group, samples were equally distributed into two subgroups (n= 5) to bond with either a two-step E&R adhesive Adper SingleBond 2 (SB) or a three-step E&R adhesive Adper ScotchBond Multi-Purpose (SBMP). The microtensile bond strengths (MTBS) were tested and fracture modes were analyzed by stereomicroscopy and field-emission scanning electron microscopy (FESEM). Eight additional dentine disks were prepared to evaluate tubule occlusion prior to bonding using FESEM.ResultsThe application sequence of calcium-containing desensitising pastes did not significantly affect MTBS irrespective of two-step SB (P> 0.05) or three-step SBMP E&R adhesives (P> 0.05). Effective dentinal tubule occlusion was observed in the mode of etching-desensitising.ConclusionsApplying calcium-containing desensitisers (particularly Arg-CaCO3- and Novamin-based) after etching during E&R adhesive restoration could achieve effective tubule occlusion without affecting the bonding strength.