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Ebert demonstrated the possibility to build dense three-dimensional components of the size of a crown , with its characteristic occlusal surface topography , through material extrusion technology , using zirconia ceramic suspensions .
 process parameter: build; concept or principle: three-dimensional; machine or equipment: components; machine or equipment: crown; concept or principle: surface topography; manufacturing process: material extrusion; material: zirconia ceramic
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:
 process parameter: build; concept or principle: three-dimensional; machine or equipment: components; machine or equipment: crown; concept or principle: surface topography; manufacturing process: material extrusion; material: zirconia ceramic