EFFECTS OF VARIOUS SURFACE TREATMENTS OF HEAT CURE POLYMETHYL METHACRYLATE DENTURE BASES ON THE TENSILE BOND STRENGTH OF SOFT LINERS
EFFECTS OF VARIOUS SURFACE TREATMENTS OF HEAT CURE POLYMETHYL METHACRYLATE DENTURE BASES ON THE TENSILE BOND STRENGTH OF SOFT LINERS
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热固化聚甲基丙烯酸甲酯义齿各种表面处理对软垫拉伸粘结强度的影响
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通讯作者：
Shouvik Chowdhury
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作者：
R. Maheshwari;P. Raman;T. Subramaniam;S. Hans;Shouvik Chowdhury
* 印度北方邦Moradabad Kothiwal牙科学院和研究中心修复学系高级讲师 ** MDS，印度浦那Inlaks & Budhrani医院Ruby Hall修复学顾问 * 修复学系教授。印度拉贾斯坦邦Sri Ganganagar Maharaja Ganga Singh牙科学院和研究中心牙周病学系讲师北方邦Bareilly牙科科学研究所口腔和颌面外科系讲师India _摘要目的：本研究旨在通过不同的树脂表面处理，确定两种软内衬与热固化聚甲基丙烯酸甲酯义齿基托树脂的粘结强度。材料与方法：本研究使用日本东京GC公司生产的永久性自固化义齿软衬材料GC Reline软衬和软衬。通过40 mm长、10 mm宽、10 mm和10 mm X 10 mm横截面积的不锈钢模具制备样品。标本分为沿着2组5个亚组。结果：统计学分析采用方差分析和t检验.采用万能试验机测量粘结强度。硅树脂与丙烯酸树脂及其亚组的粘接强度差异显著。结论：从上述研究可以得出结论，丙烯酸酯组的粘结强度最高。在最佳物理表面处理方面，硅胶组表现为砂纸处理优于喷砂处理。在化学表面处理方面，有机硅基团表明丙酮的应用优于甲基丙烯酸甲酯。在用甲基丙烯酸甲酯处理聚甲基丙烯酸甲酯后，在聚甲基丙烯酸甲酯与丙烯酸软内衬中观察到最佳组合。
* Senior Lecturer, Department of Prosthodontics, Kothiwal Dental College & Research Centre, Moradabad, Uttar Pradesh, India ** MDS, Consultant Prosthodontist, Ruby Hall, Inlaks & Budhrani Hospital, Pune, India *** Professor, Department of Prosthodontics. Dr. D.Y Patil Dental College & Hospital, Pimpri, Pune, India † Reader, Department of Periodontics, Maharaja Ganga Singh Dental College & Research Centre, Sri Ganganagar, Rajasthan, India †† Lecturer, Department of Oral & Maxillofacial Surgery, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India _________________________________________________________________________ ABSTRACT Aim: The aim of this study was to determine the bond strength of two soft liners to Heat cure poly methyl methacrylate denture base resins by various surface preparation of resin. Materials and Methods: GC Reline soft and soft liner (GC Corporation, Tokyo, Japan) a permanent self cure denture soft lining materials were used in this study. Specimens were prepared by stainless steel dies of 40 mm length, 10 mm wide, 10 mm and a cross sectional area of 10mm x 10mm. The specimen categorized in 2 groups along with 5 subgroups. Results: Statistical analysis done was ANOVA and Student ‘t’ test. Bond strength was measured by universal testing machine. Significant difference was found in bond strength of silicon and acrylic including its subgroups. Conclusion: From the above study it can be concluded that highest bond strength was seen in the Acrylic group. In matter of best physical surface treatment Silicone group showed Sand papering was better than Sand blasting. In respect to chemical surface treatment, silicone group showed that application of Acetone was better than Methyl Methacrylate. Best combination was seen in the Polymethyl methacrylate to Acrylic soft liner after the Polymethyl methacrylate was treated with Methyl Methacrylate.