Ключевые слова: assistant, blue, care, caries, caucasian, chair, cleaning, clinic, covid19, cup, dental, dentist, dentistry, diagnosis, doctor, drill, equipment, face, female, gloves, hands, horizontal, hygiene, indoors, instrument, lab coat, lady, lying, male, man, mask, mature, medical, medicine, mouth, operating, operation, orthodontic, patient, plaque, practitioner, professional, shield, specialist, surgeon, tools, tooth, woman,