1. Dental plaque is a biofilm that forms on teeth and contains bacteria. It can lead to dental caries and periodontal disease if not controlled. 2. Plaque is removed through mechanical and chemical methods like brushing, flossing, and mouthwashes. Regular removal is important for oral health. 3. Dentists educate patients on plaque control methods and healthy habits through effective communication to motivate long-term behavior change. Regular reinforcement is needed as oral health messages can fade over time.