Before surgery, get teeth cleaned

Before surgery dental cleaning

Summary Before surgery: Improving patients' oral hygiene helps prevent postoperative pneumonia. 

A little more: "Preoperative oral care and effect on postoperative complications after major cancer surgery" (From AMA) A retrospective study was done to determine the association between pre surgical  oral care and post surgical complications among patients who underwent major cancer surgery. The study showed that preoperative oral care by a dentist significantly reduced postoperative complications in patients who underwent cancer surgery.

My thoughts: Before getting surgery go get dental cleaning