My dentists assistant used some sort of a machine ...if I wasn't so freaked out about the procedure I would recall the name of the machine . Anyhow all tbe extraction sites in my mouth were checked for level of infection and the testing machine was inaccurate it predicted the least infected site would go last, well I waited almost nine months for the dentist to get to this wisdom tooth extracton site and that was where the major infection was, so I think so machine testing are better than others . I'm not a believer yet because of what happened to me
My dentist used centrifuge machine to spin your blood and injected into the site after surgery there is really NO real pain afterwards just swelling bleeding then you heal up my dentist was having me wait for three months to return.