This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Silicate cement is indicated in: 
Select and explain. 
A. Mouth breathers, B. Patients with high caries index, C. In the restoration of posterior tooth, D. None of the above
B: Patients with high caries index
Answer: B: Patients with high caries index 
Explanation: Up to the early 1970s, silicate cement restorations were used for anterior esthetic restorations. This material was used because of its tooth-colored properties in addition to its ability to release significant amounts of fluoride.
The anticariogenic potential of silicate cement confirms the ability of F- to inhibit demineralization, that’s why silicate cement has use in patients with high caries index.
Reference: PHILLIPS’ SCIENCE OF DENTAL MATERIALS, 12th ed page no 14