You have my sympathy Mez im suffering with you too
I found a great mouthwash specially if too sore to brush proper & surprisingly does work as it says on the ad & bottle, its called Dentyl that you shake & apparently you can see on spit what it removes

plus its very kind on sore teeth & gums without the great sting plus is really pulls the crap off too hehehehe [i know no nice way to put it

] Also been trying out that colgate sensitive too & can brush my sensitive areas so thats good, although short term prevention of problems getting worse but still no substitute for dental intervention.
Which our MP is aware of - thanks everyone
