All of the following are covered under most dental plans EXCEPT for

• A. X-rays
• B. Tooth extraction
• C. Cleanings
• D. Mouth cancer

Answer: (D)

Dental plans are built around protecting and maintaining oral health through routine preventive care and common dental procedures. Preventive services, like regular cleanings and X-rays, are covered because they help detect and prevent problems early. When a tooth needs to be removed, that is another standard dental service that plans typically cover if it's medically necessary. Mouth cancer, however, is a medical condition that requires diagnosis and treatment beyond dental procedures, so it falls outside the usual scope of a dental plan. A dentist may perform screenings for oral cancer, but the costs for treatment are generally handled by medical insurance rather than the dental plan.