Ключевые слова: african, afro, american, assistance, assistant, cabinet, chair, class, clinic, colleague, confidence, confident, contemporary, dental, dentist, dentistry, doctor, education, expertise, friendly, health care, healthcare, horizontal, hospital, hygiene, indoor, instrument, laboratory, medical, medicine, mouth, nurse, occupation, orthodontic, patient, profession, professional, science, skill, smile, specialist, student, surgery, tool, training, treatment, uniform, university, working,