Pt history of dental abscess x 3.oral hygiene difficult due to severe intellectual db/autistic.can oral bacteria/strep cause permanent organ damage ?

Strep. can damage: Strep. Can find it's way into the blood stream and cause organ damage.

Strep Infections: Strep infections can be dangerous. I would not be concerned about normal oral bacteria. Everyone has them and it is rarely a problem to the general health of an individual. Oral infections from teeth, gums, other soft tissues can be problematic. I would strongly recommend you discuss this with a dentist or physician who can actually examine the patient on a regular basis.

Implant denture Ok?!: Unbeknownst to many, the mouth is part of the human body. Abscesses and gum disease are infections which can spread through the rest of the body. Like any other bacterial infection carried through the blood stream, organ damage is possible. It may seem radical but knowing that dental issues will only get worse, have you considered all extracts ; screw retained dental implant supported dentures?