dimple vs tooth decay

dimple

noun
  • Specifically, a small natural depression on the skin, especially on the face near the corners of the mouth. 

  • A small depression or indentation in a surface. 

verb
  • To create a dimple in. 

  • To form dimples; to sink into depressions or little inequalities. 

  • To create a dimple in one's face by smiling. 

tooth decay

noun
  • Dental caries. 

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