Crystal growth by fluoridated adhesive resins
Crystal growth by fluoridated adhesive resins
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DOI：
10.1016/j.dental.2007.04.014
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发表时间：
2008-04-01
期刊：
影响因子：
5
通讯作者：
Yawaka, Yasutaka
中科院分区：
文献类型：
--
作者：
Hashimoto, Masanori;Nakamura, Kouichi;Yawaka, Yasutaka
Objective.本研究旨在评估释放氟化物的粘合树脂对标准化流体填充间隙中结构变化的长期影响，模拟材料与牙面之间的体外微渗漏。在本研究中使用三种市售的氟化物释放树脂粘合剂（One-Up Bond F、OptiBond Solo和Reactmer Bond）。将固化的树脂粘合剂盘放置在平坦的人牙齿表面（牙釉质和牙本质）上，通过标准化的40 μ m界面间隙分开，并在蒸馏水中储存24小时（对照组）或1000天（实验组）。在水储存1000天后，将树脂从牙齿上分离，并通过扫描电子显微镜（SEM）检查相对表面。此外，还通过激光拉曼光谱进行了化学结构分析。结果。SEM显微照片显示，OptiBond Solo和Reactmer Bond在水储存1000天后，牙釉质、牙本质和树脂表面上存在多种晶体类型。然而，在One-Up Bond F的对照样本和老化样本中没有晶体形成。拉曼分析显示OptiBond Solo晶体的几个峰（463、618和990 cm（-1））在牙釉质、牙本质或固化树脂中未被识别。总之，三种测试的氟化物释放树脂粘合剂中的两种（OptiBond Solo和Reactmer Bond）具有在长期水储存中在粘合剂和牙齿之间的间隙内诱导晶体生长的能力。这些结果表明，这两种胶粘剂树脂具有自修复能力方面的债券泄漏。(C)2007年，牙科材料学院。由爱思唯尔有限公司出版。保留所有权利。
Objective. This investigation was carried out to evaluate the long-term effects of fluoride-releasing adhesive resins on structural changes in standardized fluid-filled gaps simulating microleakage between the materials and the tooth surface in vitro.Methods. Three commercially available fluoride -releasing resin adhesives (One-Up Bond F, OptiBond Solo, and Reactmer Bond) were used in this study. Cured disks of resin adhesive were placed over flat human tooth surfaces (enamel and dentin), separated by a standardized 40 mu m interfacial gap and stored in distilled water for 24 h (control group) or 1000 days (experimental group). After 1000 days of water storage, the resins were detached from the teeth and the opposing surfaces were examined by scanning electron microscopy (SEM). In addition, chemical structural analysis was performed by laser-Raman spectroscopy.Results. The SEM microphotographs showed numerous crystal types on the enamel, dentin, and resin surfaces after 1000 days of water storage for OptiBond Solo and Reactmer Bond. However, there was no crystal formation in the control specimens and the aged specimens of One-Up Bond F. Raman analysis showed several peaks (463, 618, and 990 cm(-1)) from the crystals of OptiBond Solo that were not identified in the enamel, dentin, or cured resin.Significance. In conclusion, two of the three tested fluoride -release resin adhesives (OptiBond Solo and Reactmer Bond) have the ability to induce crystal growth within gaps between the adhesive and teeth in long-term water storage. These results suggest that the two adhesive resins have self-reparative ability with regard to bond leakage. (C) 2007 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.