Ключевые слова: after, background, beautiful, beauty, before, bleach, care, cheek, clean, clear, close, concept, dental, dentist, dentistry, dentition, denture, dirty, face, female, fresh, girl, happiness, health, healthy, horizontal, hygiene, isolated, laugh, lips, mouth, oral, people, perfect, person, protection, skin, skincare, smile, stomatology, teeth, treat, treatment, up, white, whiten, whitening, women, yellow, young,