Ключевые слова: ache, adult, background, blue, care, caries, casual, caucasian, cheek, closeup, dental, dentistry, discomfort, disease, expression, face, gingivitis, guy, hand, handsome, health, hurt, illness, inflammation, isolated, male, man, medicine, mouth, oral, pain, painful, people, periodontitis, person, portrait, problem, shirt, sick, suffering, teeth, tooth, tooth pain, toothache, touching, treatment, uncomfortable, unhappy, unhealthy, young,