Ключевые слова: amino, anaesthetic, anesthesia, anesthetic, atomic, background, biology, blocker, blue pink, carbon, care, carevitamin, chemical, chemical compound, chemistry, coenzyme, component, concept, dentist, dependence, drawing, drawn, drug, education, electronic, element, formula, functional, illustration, injection, laboratory, local, medical, medicine, molecular, molecular formula, molecule, molecules, novocaine, procain, procaine, science, simple, sticker, stomatology, structure, substance, symbol, teeth,