Adolescents face common oral health issues like dental caries and periodontal diseases. Risk factors for dental caries in adolescents include location of teeth, frequent snacking on sugary foods and drinks, inadequate brushing, dry mouth, and lack of fluoride. Periodontal diseases become more common in adolescents aged 12-17 and risk factors include age, smoking, genetics, stress, and certain medications. Preventive measures include regular brushing, flossing, fluoride treatment, and dental checkups. Treatment options depend on the disease but may include fillings, root canals, crowns, extractions, scaling, and surgery. It is important for adolescents to practice good oral hygiene and receive periodic dental exams and treatment.