Philip Jacob M, Ganapathy Dhanraj M, Ariga Padma
Department of Prosthodontics, Saveetha Dental College, Chennai, Tamil Nadu, India.
Contemp Clin Dent. 2012 Jul;3(3):298-301. doi: 10.4103/0976-237X.103622.
This study was formulated to evaluate and estimate the influence of various denture base resin surface pre-treatments (chemical and mechanical and combinations) upon tensile bond strength between a poly vinyl acetate-based denture liner and a denture base resin.
A universal testing machine was used for determining the bond strength of the liner to surface pre-treated acrylic resin blocks. The data was analyzed by one-way analysis of variance and the t-test (α =.05).
This study infers that denture base surface pre-treatment can improve the adhesive tensile bond strength between the liner and denture base specimens. The results of this study infer that chemical, mechanical, and mechano-chemical pre-treatments will have different effects on the bond strength of the acrylic soft resilient liner to the denture base.
Among the various methods of pre-treatment of denture base resins, it was inferred that the mechano-chemical pre-treatment method with air-borne particle abrasion followed by monomer application exhibited superior bond strength than other methods with the resilient liner. Hence, this method could be effectively used to improve bond strength between liner and denture base and thus could minimize delamination of liner from the denture base during function.
本研究旨在评估和估计各种义齿基托树脂表面预处理（化学、机械及联合处理）对聚醋酸乙烯酯基义齿衬垫与义齿基托树脂之间拉伸粘结强度的影响。
使用万能试验机测定衬垫与表面预处理后的丙烯酸树脂块之间的粘结强度。数据采用单因素方差分析和t检验进行分析（α = 0.05）。
本研究推断义齿基托表面预处理可提高衬垫与义齿基托试件之间的粘结拉伸强度。本研究结果推断，化学、机械和机械化学预处理对丙烯酸软质弹性衬垫与义齿基托的粘结强度有不同影响。
在义齿基托树脂的各种预处理方法中，推断先进行空气颗粒研磨再涂抹单体的机械化学预处理方法与弹性衬垫结合时，比其他方法具有更高的粘结强度。因此，该方法可有效用于提高衬垫与义齿基托之间的粘结强度，从而在功能过程中使衬垫与义齿基托之间的分层最小化。
