Key words: disinfection, root canal, clinicalIntroduction Sterilization plays a very important role in preventionCross-infection in dental practice. Pathogenic microorganisms can be passed directly from the dentist to the patient, from the patient to the doctor, or indirectly from the patient to the patient. This may be achieved by direct contact or by contaminated instruments or surfaces;
In the positive achievements of the past year, sales, net profit and earnings per share records and operating profit margins increased by 40 basis points to 8 basis points. 3%. Operating cash and free cash flow have also created new records. Operating capital decreased by about 6%, and the efficiency of working capital increased to fulltime low.