【學術亮點】含LiAl-F層狀雙氫氧化物（LDH）填料的氟可釋放/可充電正畸粘合樹脂的剪切粘結強度和熱循環效應 | 中興大學永續農業創新發展中心 IDCSA Center, NCHU

【學術亮點】含LiAl-F層狀雙氫氧化物（LDH）填料的氟可釋放/可充電正畸粘合樹脂的剪切粘結強度和熱循環效應 2019-09-30

設施農業：綠能設施開發【材料系汪俊延教授】

論文篇名	英文：Shear Bonding Strength and Thermal Cycling Effect of Fluoride Releasable/Rechargeable Orthodontic Adhesive Resins Containing LiAl-F Layered Double Hydroxide (LDH) Filler 中文：含LiAl-F層狀雙氫氧化物（LDH）填料的氟可釋放/可充電正畸粘合樹脂的剪切粘結強度和熱循環效應
期刊名稱	Materials
發表年份,卷數,起迄頁數	Volume 12, 2019, 3204-3217
作者	Chih-Ying Hung, Jian-Hong Yu, Liang-Wei Su, *Jun-Yen Uan(汪俊延) ( Equal contribution to corresponding author**), Yin-Chia Chen, Dan-Jae Lin^★
DOI	10.3390/ma12193204
中文摘要	本研究旨在研究含氟釋放/可充電LiAl-F層狀雙氫氧化物（LDH-F）含牙齒正畸樹脂的正畸托槽的抗剪強度（SBS）和熱循環效應。將3％和5％的LDH-F納米粉輕輕混入市售的基於樹脂的粘合劑Orthomite LC（LC，LC3，LC5）和Transbond XT（XT，XT3）。選擇氟鋁矽酸鹽改性的樹脂粘合劑Transbond變色（TC）作為陽性對照。每組十五個支架粘結到牛琺瑯質上，並在有/無熱循環的情況下測試了SBS。在20倍放大倍數下評估粘合劑殘留指數（ARI）。還評估了氟化物釋放/再充電能力和細胞相容性。 LC，LC3和LC5的SBS顯著高於XT和TC。熱循環後，LC，LC3和LC5的SBS沒有降低，並且顯著高於TC。 ARI得分的變化表明，失敗不僅發生內聚性斷裂，還發生了半內聚性斷裂。 LC3，LC5和TC在30天內每天累積的氟化物釋放量高於300μg/ cm2。與陽性對照TC相比，包含LDH-F的樹脂粘合劑具有更高的SBS。可以實現氟化物釋放和可充電功能，以防止牙釉質脫礦而無細胞毒性。
英文摘要	This study aims to investigate the shear bonding strength (SBS) and thermal cycling effect of orthodontic brackets bonded with fluoride release/rechargeable LiAl-F layered double hydroxide (LDH-F) contained dental orthodontic resin. 3% and 5% of LDH-F nanopowder were gently mixed to commercial resin-based adhesives Orthomite LC (LC, LC3, LC5) and Transbond XT (XT, XT3). A fluoroaluminosilicate modified resin adhesive Transbond color change (TC) was selected as a positive control. Fifteen brackets each group were bonded to bovine enamel and the SBS was tested with/without thermal cycling. The adhesive remnant index (ARI) was evaluated at 20× magnification. The fluoride-releasing/rechargeability and cytocompatibility were also evaluated. The SBS of LC, LC3, and LC5 were significantly higher than XT and TC. After thermal cycling, the SBS of LC, LC3, and LC5 did not decrease and was significantly higher than TC. The changes of ARI scores indicate that failure occurred not only cohesive but also semi-cohesive fracture. The 30 days accumulated daily fluoride release of LC3, LC5, and TC without recharge are higher than 300 μg/cm². The LDH-F contained resin adhesive possesses higher SBS compared to positive control TC. Fluoride release and the rechargeable feature can be achieved for preventing enamel demineralization without cytotoxicity.