I have severely receding gums due to overbrushing-not gumdisease.declined gum grafting.oral health ok.how likely is it i will lose teeth due to this?

Gum Recession: When the gums recede, so does the bone, so your teeth have less support than others. The exposed roots may be more cavity prone, too. Meticulous oral hygiene and regular exams by a periodontist should allow you to preserve what bony support you have left

Probably Not: I hav seen many cases of brushing caused problems but they tend to be localized. If you have gum recession see your dentist and perhaps a periodontist for an evaluation.

Unlikely: If you have gum recession I would recommend a high fluoride toothpaste and fluoride mouth rinse.

Uncommon/Unlikely: Tooth brush abrasion that leads to actual tooth loss is very rare. Switch to a soft toothbrush and when you begin brush try to start in a different are of the mouth each time. A consultation/exam with a periodontist would be a good idea. Soft tissue grafting could be an option if you are a good candidate for it. Intraoral pictures of the site to track the progress of the area would be a bad idea.