Pengaruh Obat Kumur Ekstrak Etanol Daun Sirih Merah (Piper crocatum) terhadap Laju Korosi dan Mikrostruktur Kawat Ortodonti Stainless Steel

Abstract

Stainless steel orthodontic wire is a commonly used type of wire in orthodontic treatments. The use of mouthwash is recommended by doctors to help control the accumulation of plaque and bacteria, however mouthwash can affect the corrosion process of stainless steel wires so it needs to be inhibited with a mouthwash that has inhibitors during use. The objective of this research is to determine the efficacy of mouthwash extracted from ethanol of red betel leaves (Piper crocatum) in inhibiting the corrosion rate and microstructure changes of stainless steel wire after immersion for 7, 14, and 21 days. This study is an experimental laboratory research with a posttest only control group design. The samples used are 0.016-inch diameter and 5 cm long stainless steel wires. The samples are divided into four groups: Group 1, orthodontic wire immersed in artificial saliva solution; Group 2, immersed in 0.2% chlorhexidine; Group 3, immersed in Total Care green betel leaf mouthwash; and Group 4, immersed in mouthwash with 2% ethanol extract of red betel leaves (Piper crocatum). Corrosion rate testing is conducted using the weight loss method, and the analysis of microstructure changes in the wire is performed using a Scanning Electron Microscope (SEM). The average corrosion rate results show a significant difference between artificial saliva solution, 0.2% chlorhexidine mouthwash, Total Care green betel leaf mouthwash, and 2% ethanol extract of red betel leaf (Piper crocatum) mouthwash for 7, 14, and 21 days (p<0.05). SEM analysis results reveal differences in the microstructure on the surface of stainless steel wire after immersion in artificial saliva solution, 0.2% chlorhexidine, Total Care green betel leaf mouthwash, and 2% ethanol extract of red betel leaf (Piper crocatum) mouthwash for 7, 14, and 21 days.