Ключевые слова: background, bacteria, breath, brush, brushing, care, clean, cleaning, container, copy, daily, dental, dentist, dentistry, different, equipment, flat, floss, flossing, fresh, grey, health, hygiene, lay, light, many, medical, morning, mouth, object, oral, periodontal, personal, products, protection, safety, set, smile, space, stomatology, teeth, text, tooth, toothbrush, top, treatment, various, view, wash, whitening,