Failure to sterilize extraction instruments may lead to infection. Tooth extraction is an invasive procedure, and wounds that come into contact with instruments that have not been cleanly sterilized may be infected by the bacteria or viruses on them. Wounds caused by operations such as tearing of apical blood vessels and periodontal tissues, flap debridement, etc. during tooth extraction provide a pathway for bacteria and viruses to become infected. Common infections include Hepatitis B and AIDS. All extraction tools, except disposable tools, need to be autoclaved to kill bacteria and germs on the surface in order to effectively avoid cross-infection. If you need to undergo tooth extraction, it is recommended that you visit a regular medical institution to receive professional treatment to ensure your safety.