Lagouvardos Panagiotis E, Polyzois Gregory L
Department of Operative Dentistry, Dental School, University of Athens, Greece.
Int J Prosthodont. 2003 Sep-Oct;16(5):499-504.
The purpose of this study was to investigate the strength of the composite resin-denture tooth bond as affected by different tooth surface treatments.
Spectrum TPH was condensed on 112 mandibular first molar acrylic resin and composite resin denture teeth, which received seven different treatments: Four groups were treated with Prime & Bond NT adhesive, and three groups were treated with One Step adhesive. Four groups (two of each adhesive category) were treated with Composite Activator and air abrasion. In one group, AeliteFlo was used just before the condensation of Spectrum TPH. Bond strength was evaluated with a shear test device on a Monsanto testing machine. The results were evaluated statistically with two-way ANOVA and the Scheffé method.
There was a significant interaction between denture tooth type and surface treatments. Bond strength of composite resin was greater to composite than to acrylic resin teeth when the bond was mediated only with adhesives. One Step adhesive and AeliteFlo resulted in a higher bond of composite resin to both types of teeth. Wetting tooth surfaces with Composite Activator did not increase the bond.
When repairing denture teeth with composite resin and adhesives, the bond strength was higher with composite than with acrylic resin teeth, and there were differences between the adhesives used.
本研究旨在调查不同牙齿表面处理对复合树脂 - 义齿牙粘结强度的影响。
将Spectrum TPH凝聚在112颗下颌第一磨牙丙烯酸树脂和复合树脂义齿牙上，这些牙齿接受了七种不同的处理：四组用Prime & Bond NT粘结剂处理，三组用One Step粘结剂处理。四组（每种粘结剂类别两组）用复合活化剂和空气磨蚀处理。在一组中，在凝聚Spectrum TPH之前使用AeliteFlo。使用孟山都试验机上的剪切测试装置评估粘结强度。结果用双向方差分析和谢费方法进行统计学评估。
义齿牙类型与表面处理之间存在显著交互作用。当仅用粘结剂介导粘结时，复合树脂对复合树脂牙的粘结强度大于对丙烯酸树脂牙的粘结强度。One Step粘结剂和AeliteFlo导致复合树脂对两种类型牙齿的粘结更高。用复合活化剂湿润牙齿表面并未增加粘结。
用复合树脂和粘结剂修复义齿牙时，复合树脂对复合树脂牙的粘结强度高于对丙烯酸树脂牙的粘结强度，并且所用粘结剂之间存在差异。
