Ключевые слова: anatomy, bright, care, character, clean, clinic, concept, dent, dental, dentist, dentistry, disease, doctor, enamel, freshness, happy, health, healthy, human, hygiene, medical, medicine, molar, mouth, oral, protection, root, set, sign, smile, symbol, teeth, tooth, toothache, toothbrush, treatment, unhealthy, white, whitening,