Ключевые слова: adult, anxiety, anxious, bite, care, closeup, concerned, confidence, confused, dentist, dentistry, disease, doubtful, emotional, face, finger, fingernail, health, healthy, horizontal, hygiene, man, medical, medicine, mood, mouth, nail, nail biting, nervous, one person, pensive, person, portrait, problem, sad, scared, serious, shy, smile, stress, teenage, teeth, tension, tooth, trouble, uncertainty, unhappy, worry, young,