denture vs discoid

denture

noun
  • an artificial replacement of one or more teeth 

  • a set of teeth, the teeth viewed as a unit 

  • a complete replacement of all teeth in a mouth 

discoid

noun
  • A disk-shaped dental excavator designed to remove the carious dentin of a decayed tooth 

adj
  • Shaped like a disc/disk. 

How often have the words denture and discoid occurred in a corpus of books? (source: Google Ngram Viewer )