dentition vs discoid

dentition

noun
  • The set of natural teeth of an individual 

  • An arrangement in an organism or object of projections that resemble teeth 

  • The process of growing teeth; teething 

  • The type, number and arrangement of the normal teeth of an organism or of the actual teeth of an individual 

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 dentition and discoid occurred in a corpus of books? (source: Google Ngram Viewer )