Ключевые слова: ache, adult, agony, caucasian, concept, dental, disease, distress, expression, face, frustrated, frustration, gesture, guy, hand, head, health, hurt, ill, illness, isolated, male, man, medical, mouth, one, pain, painful, people, person, portrait, problem, problems, sad, sadness, sick, sickness, stress, stressed, suffer, suffering, teeth, tooth, toothache, touch, trouble, troubles, white, young,