Kumar Pawan, Vadavadagi Suneel V, Lahari M, Shetty Nitesh, Deb Saikat, Dandekeri Savita
Department of Prosthodontics, Al Badar Rural Dental College and Hospital, Gulbarga, Karnataka, India.
Department of Prosthodontics, SJM Dental College and Hospital, Chitradurga, Karnataka, India, Phone: +91 9845804642, e-mail:
J Contemp Dent Pract. 2019 May 1;20(5):557-560.
The aim of the present study was to evaluate the wettability of three saliva substitutes on heat-polymerized acrylic resin.
Heat-cured acrylic resins 150 were made and divided into three groups containing 50 samples each, i.e., group 1 Aqwet, group 2 Biotene, and group 3 Mouthkote. The prepared wax pattern was cut using 30 × 30-mm two square glass plates along the sides using a sharp carver. The uniformity of the wax samples was checked using the wax gauge. The wax samples were invested using dental plaster in varsity flasks. The samples were prepared using conventional heat-cure denture base acrylic resin. A goniometer was used to calculate receding and advancing contact angles for dynamic contact angle analysis.
The least mean value of advancing and receding contact angles was seen in group 1 Aqwet (68.12 ± 1.30 and 58.56 ± 0.10) followed by group 2 Biotene (81.64 ± 0.88 and 74.89 ± 0.45), and group 3 Mouthkote (85.76 ± 1.02 and 80.63 ± 0.66). A significant difference was found between the groups statistically with a value of 0.001. A significant difference was found on multiple comparisons between group 1 vs group 3 and group 1 vs group 2 with different receding and advancing contact angles of saliva substitutes analyzed with Turkey's test.
The lowest advancing and receding contact angle values were significantly seen in the Aqwet saliva substitute followed by Biotene and Mouthkote on heat-polymerized acrylic resin.
The clinical significance of the saliva substitute's good wetting property on acrylic denture base. The quality of life of the patients with xerostomia can be improved using a suitable saliva substitute.
本研究旨在评估三种唾液替代品对热聚合丙烯酸树脂的润湿性。
制作150个热固化丙烯酸树脂样本，并将其分为三组，每组50个样本，即第1组Aqwet、第2组Biotene和第3组Mouthkote。使用锋利的雕刻刀沿着30×30毫米的两块方形玻璃板的边缘切割制备好的蜡型。使用蜡规检查蜡样本的均匀性。将蜡样本用牙科石膏包埋在大学烧瓶中。使用传统的热固化义齿基托丙烯酸树脂制备样本。使用测角仪计算后退角和前进角，以进行动态接触角分析。
第1组Aqwet的前进角和后退角的平均最小值分别为（68.12±1.30和58.56±0.10），其次是第2组Biotene（81.64±0.88和74.89±0.45），第3组Mouthkote（85.76±1.02和80.63±0.66）。各组之间在统计学上存在显著差异，P值为0.001。使用土耳其检验分析唾液替代品不同的后退角和前进角，发现第1组与第3组以及第1组与第2组之间在多重比较中存在显著差异。
在热聚合丙烯酸树脂上，Aqwet唾液替代品的前进角和后退角值最低，其次是Biotene和Mouthkote。
唾液替代品对丙烯酸义齿基托具有良好润湿性的临床意义。使用合适的唾液替代品可以改善口干患者的生活质量。
