Restorative & Materials · single question
An elderly patient with xerostomia has multiple cervical (Class V) root-surface lesions. Which restorative material is best?
Show answer and explanation
Correct answer: A. Glass ionomer or resin-modified glass ionomer
- A. Correct. Glass ionomer chemically bonds to tooth structure, releases fluoride, and tolerates moisture — ideal for Class V/root-surface lesions in a high-caries-risk dry mouth.
- B. Incorrect. Amalgam needs mechanical retention and offers no fluoride release or chemical bond for cervical lesions.
- C. Incorrect. Porcelain is not used for direct cervical restorations and is technique/cost intensive here.
- D. Incorrect. Gold foil is rarely used today and is poorly suited to multiple cervical lesions in this patient.
Practice Restorative & Materials questions Restorative & Materials study notes