aesthetic surgery vs plastic surgery

aesthetic surgery

noun
  • Surgery which alters a person's physical appearance, performed not for health reasons but in order to increase his or her beauty or physical appeal; cosmetic surgery. 

plastic surgery

noun
  • Cosmetic surgery for appearance. 

  • Surgery to repair body parts, especially involving the transfer of tissue. 

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