A college student presents with bleeding gums in some areas while brushing, and calculus buildup is visible on the lingual surfaces of lower incisors and upper molars. What is the best treatment plan?

Correct answer: D. Scaling and root planing only in areas with calculus

• A. Full-mouth SRP is indicated for generalized periodontitis; localized calculus without generalized bone loss does not warrant full-mouth SRP.
• B. Mouthwash alone does not remove calculus deposits.
• C. Antibiotics are not first-line for localized gingivitis without signs of systemic involvement or aggressive periodontitis.
• D. This presentation (localized calculus, localized bleeding) is consistent with localized gingivitis. Targeted scaling where calculus is present, plus oral hygiene instruction, is the appropriate conservative treatment.