Ключевые слова: 1, ache, adult, agony, background, beard, bearded, casual, caucasian, cheek, dental, dentist, disease, expression, face, frowning, gray, hair, hand, head, health, hurt, ill, illness, indoor, isolated, male, man, mature, medical, medicine, mouth, one, pain, people, person, portrait, problem, pucker, sad, senior, shirt, stress, suffer, teeth, tooth, toothache, white, young,