Srinivas Kiran, Ganesh S Balaji, Jayalakshmi S
Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
White Lab - Materials Research Centre, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India.
J Adv Pharm Technol Res. 2022 Dec;13(Suppl 2):S462-S465. doi: 10.4103/japtr.japtr_262_22. Epub 2022 Dec 30.
The surface area determination has a vital role in measuring the properties of liquid and solid substances. Fluoride is a potent remineralizing agent of the teeth. The surface area is measured using a goniometer. The main aim of this study is to estimate the wettability of topical fluoride gel on the anterior and posterior teeth surfaces. Topical acidulated phosphate fluoride (APF) gel was taken in small quantities. Anterior and posterior teeth were collected, and their superficial unaltered enamel sections were used as the surface where the contact angle (CA) is determined. The surface wettability is determined using Ossila goniometer to measure CA. Each stage was mounted on a mechanical stage of the goniometer. A calibrated microsyringe was used to dispense drops of the APF gel over the surface of the specimen Group A (anterior tooth cut section) and Group B (posterior tooth cut section). This procedure is repeated for all specimen samples. The mean of CAs of the anterior teeth (88.41°) was greater when compared with the mean of posterior teeth (80.36°) CA. value found using the paired -test of SPSS software is found to be 0.271 (>0.05), hence statistically not significant. The greater the CA, the lower is the degree of wettability on the teeth surfaces. The mean CA of the topical fluoride APF gel on the anterior tooth surface is greater when compared to the posterior tooth surface. This signifies that greater wettability is seen on posterior tooth surfaces.
表面积测定在测量液体和固体物质的性质方面起着至关重要的作用。氟化物是牙齿的一种强效再矿化剂。使用测角仪测量表面积。本研究的主要目的是评估局部用氟凝胶在前牙和后牙表面的润湿性。取少量局部用酸化磷酸氟（APF）凝胶。收集前牙和后牙，并将其未改变的表层釉质切片用作测定接触角（CA）的表面。使用奥西拉测角仪测量CA来确定表面润湿性。每个阶段都安装在测角仪的机械载物台上。使用校准的微量注射器将APF凝胶滴在标本A组（前牙切片）和B组（后牙切片）的表面上。对所有标本样本重复此过程。前牙的平均接触角（88.41°）比后牙的平均接触角（80.36°）大。使用SPSS软件的配对检验发现的值为0.271（>0.05），因此在统计学上不显著。接触角越大，牙齿表面的润湿性程度越低。与后牙表面相比，局部用氟化物APF凝胶在前牙表面的平均接触角更大。这表明后牙表面的润湿性更强。
