denticle vs denture

denticle

noun
  • A dentil. 

  • A pulp stone. 

  • Material serving as the dermis of sharks. 

  • A small tooth. 

denture

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

  • an artificial replacement of one or more teeth 

  • a complete replacement of all teeth in a mouth 

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