关键词: 钛;瓷;粘结剂;钛瓷结合

    摘 要:目的 观察粘结剂对钛瓷结合性能的影响. 方法 铸造尺寸为28mm×3mm×0.5mm纯钛试条，用Vita钛瓷、Noritake钛瓷分别在使用粘结剂和不使用粘结剂条件下制作钛瓷复合试件.采用三点弯曲测试法测定钛瓷结合力.采用扫描电镜观察钛瓷结合界面. 结果 使用粘结剂的Vita钛瓷试件的钛瓷分离加载(7.23±2.54)N略大于不使用粘结剂的Vita钛瓷试件的钛瓷分离加载(6.45±1.75)N，但两者无显著差异(P>0.05);使用粘结剂的Noritake钛瓷试件的钛瓷分离加载(5.53±1.20)N大与不使用粘结剂的Nori-take钛瓷试件的钛瓷分离加载(4.12±0.97)N两者有显著差异(P<0.05). 结论 粘结剂对钛瓷结合具有一定的促进作用.

    Bonder enhances bond character of porcelain and ti┐tanium

    REN Wei-Hong，GUO Tian-Wen，ZHANG Yi-Quan，WANG Bao-Cheng

    Department of Prosthodontics，Stomatological Col-lege，Fourth Military Medical University，Xi'an710033，China

    Keywords:titanium;dental porcelain;bonder;bonding strength

    Abstract:AIM To investigate effects of the bonder on the bond characteristic of porcelain and cast titanium.METHODS Three-point bend specimens28mm×3mm×0.5mm were cast of pure titanium.The surface of Ti-cast specimens was ground off about100～150μm.After the sur-face of specimens was blasted with aluminium oxide power(110μm)at a pressure of2bar ......