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
Ceramic fusion is an example of 
Select and explain. 
A. Liquid phase sintering, B. Solid phase sintering, C. Sintering, D. Oxidation-reduction reaction
B: Solid phase sintering
Answer: B: Solid phase sintering 
Explanation: The purpose of firing is simply to sinter the particles of powder together properly to form the prosthesis.
Melting temperature of newer alumina ceramic is too high: Hence, liquid phase sintering does not happen.
Particles fuse in solid phase sintering alone.