Goracci Cecilia, Di Bello Giuseppe, Franchi Lorenzo, Louca Chris, Juloski Jelena, Juloski Jovana, Vichi Alessandro
Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy.
Department of Experimental and Clinical Medicine, University of Florence, 50127 Florence, Italy.
Materials (Basel). 2022 Feb 8;15(3):1245. doi: 10.3390/ma15031245.
The need for bracket bonding to ceramic restorations is increasing. The aim of this study was to evaluate the effect of universal adhesives on bracket adhesion to polished or glazed lithium disilicate (LDS) and monolithic zirconia (MZ) surfaces. One hundred and twenty brackets (N = 10) were bonded to either polished or glazed LDS (e.max CAD B32, Ivoclar Vivadent, Schaan, Liechtenstein) and MZ (In-Ceram YZ, VITA, Bad Sackingen, Germany) blocks using three different adhesives combined with Transbond™ XT Paste (3M Unitek, Monrovia, CA, USA). Tested universal adhesives were Scotchbond™ Universal Adhesive (SU, 3M St. Paul, MN, USA) and Assure Plus (AP, Reliance, Itasca, IL, USA). Transbond™ XT Primer (XTP, 3M Unitek, Monrovia, CA, USA) served as a control adhesive. Bracket bond strength was measured in shear mode (SBS). Failure type was determined by the Modified Adhesive Remnant Index (ARI). Data were statistically analyzed. On polished LDS, SU yielded bracket SBS significantly superior to those of AP and XTP. On polished MZ, the use of SU and AP significantly enhanced bracket retention as compared with XTP. Low SBS values, below the threshold of clinical acceptability, were reached by all tested adhesives on glazed LDS and MZ specimens. SBS measurements corresponded with failure type observations. Universal adhesives SU and AP could be considered for use on polished LDS and MZ surfaces.
将托槽粘结到陶瓷修复体上的需求日益增加。本研究的目的是评估通用粘结剂对托槽粘结到抛光或上釉的二硅酸锂（LDS）和整体式氧化锆（MZ）表面的效果。使用三种不同的粘结剂与Transbond™ XT糊剂（美国加利福尼亚州蒙罗维亚3M Unitek公司）结合，将120个托槽（每组10个）粘结到抛光或上釉的LDS（e.max CAD B32，列支敦士登沙恩义获嘉伟瓦登特公司）和MZ（德国巴特萨克根维他公司的In-Ceram YZ）块上。测试的通用粘结剂为Scotchbond™通用粘结剂（SU，美国明尼苏达州圣保罗3M公司）和Assure Plus（AP，美国伊利诺伊州伊塔斯卡信赖公司）。Transbond™ XT底漆（XTP，美国加利福尼亚州蒙罗维亚3M Unitek公司）用作对照粘结剂。以剪切模式（SBS）测量托槽粘结强度。通过改良粘结剂残留指数（ARI）确定失败类型。对数据进行统计学分析。在抛光的LDS上，SU产生的托槽SBS显著优于AP和XTP。在抛光的MZ上，与XTP相比，使用SU和AP显著提高了托槽的固位力。在釉质化的LDS和MZ试件上，所有测试的粘结剂的SBS值均低于临床可接受阈值。SBS测量结果与失败类型观察结果一致。通用粘结剂SU和AP可考虑用于抛光的LDS和MZ表面。
