Ключевые слова: brushing, care, caries, clean, cleaner, cleaning, cleanliness, close, cost, crown, dental, dentist, dentistry, denture, diagnostics, doctors, glass, health, hygiene, implant, insurance, medical, nursing, oral, patient, payment, periodontosis, physician, precaution, private, prostheses, prosthesis, specialist, supplementary, surgery, third, tooth, toothache, treatment, twoclass, up, water,