Metadata

Effect of Green Tea Extract Antioxidant on Dentin Shear Bond Strength and Resin-Tag Penetration Depth after Non-vital Bleaching This study aimed to evaluate the effect of 10% and 35% green tea (10% and 35% GT) extract as an antioxidant after 2 minutes of application on dentin shear bond strength and resin tags penetration depth after non-vital bleaching. This research was conducted at the Chemistry Laboratory, Faculty of Medicine, University of Indonesia, and the Dental Materials Research and Development Laboratory, Faculty of Dentistry, University of Indonesia, in March-April 2022. This study was approved by the Ethics Committee (10/Ethical Approval/FKGUI/III/2022; 09/Ethical Exempted/FKGUI/IV/2022) and conducted in accordance with the Declaration of Helsinki. The shear bond strength assessment was done using a Universal Testing Machine with a 0.5 mm/minute cross-head speed. Confocal Laser Scanning Microscopy (CLSM) with a wavelength of 560 nm and a lens magnification of 40x was used to analyze the resin tag penetration by the fluorescence glow of rhodamine B.

《绿茶提取物抗氧化剂对无髓牙漂白后牙本质剪切粘结强度及树脂突渗透深度的影响》本研究旨在评估10%及35%绿茶（Green Tea, GT）提取物作为抗氧化剂，作用2分钟后，对无髓牙漂白后牙本质剪切粘结强度及树脂突渗透深度的影响。本研究于2022年3—4月在印度尼西亚大学医学院化学实验室及牙科学院牙科材料研究与开发实验室开展。本研究已通过伦理委员会审批（审批号：10/Ethical Approval/FKGUI/III/2022；09/Ethical Exempted/FKGUI/IV/2022），并严格遵循《赫尔辛基宣言》（Declaration of Helsinki）实施。剪切粘结强度评估采用万能试验机（Universal Testing Machine），十字头加载速率设为0.5 mm/min。本研究采用波长560 nm、镜头放大倍数40倍的共聚焦激光扫描显微镜（Confocal Laser Scanning Microscopy, CLSM），借助罗丹明B（rhodamine B）的荧光发光特性分析树脂突渗透情况。