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
There is greater potential for thermal sensitivity to: 
Select and explain. 
A. Gold castings, B. Amalgam restorations, C. Composite restorations, D. Silicate restorations
A: Gold castings
Answer: A: Gold castings 
Explanation: because of its higher thermal conductivity, teeth with gold Castings have a greater potential for thermal sensitivity than do those with amalgam restorations.