Ключевые слова: before and after, biology, brown, cavities, clean, closeup, comparison, contrast, damaged, decay, dental, dental care, dental health, dentin, dentistry, detailed, diagram, diseased, enamel, erosion, healthcare, healthy, illustration, infection, medical, oral hygiene, pain, restoration, root, roots, rotten, science, teeth, tooth, tooth decay, toothache, treatment, unhealthy, visual aid, white, yellow,