Ozone water or chloroxylenol: The comparison of disinfection effectiveness against the number of bacterial colonies in dental extraction instruments at the Universitas Sumatera Utara Dental and Oral Hospital

臭氧水或氯二甲酚：北苏门答腊大学口腔医院牙科拔牙器械消毒效果与细菌菌落数量的比较