"Hygiene techniques" refer to the methods or practices that help keep ourselves and our surroundings clean and free from germs or diseases. Full definition
Maintained clear, organized dental records... patients on proper dental hygiene techniques to maintain optimal oral health. (livecareer.com)
Under the supervision of a dentist, they help manage patient care and treatment plans, take X-rays, and educate patients on proper oral hygiene techniques. (learnhowtobecome.org)
There's not much you can do about that, but some childhood immunizations (including influenza and pneumococcal conjugate vaccines) may reduce the risk of ear infections, as can basic hygiene techniques such as washing your hands. (health.com)