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This ceramic material is used in the fabrication of single and multiunit dental restorations , mainly dental crowns , bridges , and veneers , due to its excellent mechanical and optical properties .
 material: ceramic material; manufacturing process: fabrication; application: dental; process characterization: dental crowns; machine or equipment: veneers; application: mechanical; machanical property: optical properties
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 material: ceramic material; manufacturing process: fabrication; application: dental; process characterization: dental crowns; machine or equipment: veneers; application: mechanical; machanical property: optical properties