The influence of SiO2 and SiO2-TiO2 intermediate coatings on bond strength of titanium and Ti6A14V alloy to dental porcelain
The influence of SiO2 and SiO2-TiO2 intermediate coatings on bond strength of titanium and Ti6A14V alloy to dental porcelain
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DOI：
10.1016/j.dental.2009.01.107
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发表时间：
2009-09-01
期刊：
影响因子：
5
通讯作者：
Walczak, Mariusz
中科院分区：
文献类型：
--
作者：
Bienias, Jaroslaw;Surowska, Barbara;Walczak, Mariusz
目标.本研究的目的是评估商业纯CPTi和Ti6 A14 V合金与SiO2和SiO2-TiO 2中间涂层与Triceram低熔牙科瓷的结合强度。从微观结构分析（SEM）的观点，失效模式，粘结的性质和中间涂层对粘结强度的改善的影响，其特征在于多层系统。采用溶胶-凝胶浸渍法在基体材料上制备了SiO2和SiO2-TiO 2中间涂层。根据ISO 9693标准，采用三点弯曲粘结试验研究了金属-陶瓷的粘结强度。与CPTi（23.04 MPa）、CPTi/SiO2（27.98 MPa）和CPTi/SiO2-TiO 2（28.84 MPa）相比，Ti6 A14 V合金（28.24 MPa）、Ti6 A14 V/SiO2（32.17 MPa）和Ti6 A14 V/SiO2-TiO 2（36.09 MPa）的金属-瓷结合强度在统计学上显著更高。金属-中间涂层-瓷结合的本质是机械结合和化学结合。所有系统的失效均为内聚和粘附，主要为粘附。与仅喷砂后的金属基底相比，将溶胶-凝胶法制备的SiO2和SiO2-TiO 2中间涂层应用于CPTi和Ti6 A14 V合金显著提高了金属-瓷系统的结合强度，并可能具有临床用途。(C)2009年牙科材料学院。由爱思唯尔有限公司出版。保留所有权利。
Objectives. The purpose of this study was to evaluate the bond strength of commercially pure CPTi and Ti6A14V alloy with SiO2 and SiO2-TiO2 intermediate coatings to Triceram low-fusing dental porcelain.Methods. The multilayered systems were characterized from the standpoint of microstructure analysis (SEM), the mode of failure, the nature of bonding and the influence of intermediate coatings on the improvement of bond strength. The SiO2 and SiO2-TiO2 intermediate coatings were applied on the substrate materials by the sol-gel dipping technique. The metal-ceramic bond strength was investigated according to ISO 9693 standards using the three-point flexure bond test.Results. Statistically significant higher bond strength of the metal-porcelain for Ti6A14V alloy (28.24 MPa), Ti6A14V/SiO2 (32.17 MPa) and Ti6A14V/SiO2-TiO2 (36.09 MPa) was noted in comparison to CPTi (23.04 MPa), CPTi/SiO2 (27.98 MPa) and CPTi/SiO2-TiO2 (28.84 MPa), respectively. The nature of metal-intermediate coating-porcelain bonding was both mechanical and chemical. The failure in all systems was cohesive and adhesive, mainly adhesive.Significance. The application of SiO2 and SiO2-TiO2 intermediate coatings, produced by the sol-gel method, to both CPTi and Ti6A14V alloy significantly improves the bond strength of metal-porcelain systems in comparison to the metal substrate only after sandblasting, and may have clinical use. (C) 2009 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.