Hi!
20 years is a long time. It means that the oral cleaning regime you have set for yourself needs modifications.
Next Steps
1. Use ultra soft brush and decent toothpaste.
2. Start brushing twice a day without fail. Proper brushing technique needs to be used too.
3. Add mouthwash to your oral care. Use it once a day, preferably after lunch (To set a routine first).
4. Not down your
sugar consumption for 7 days. Each and every intake. And share it with your dentist.
Health Tips
1. Get an OPG done, just to be sure of the cause of halitosis (Bad breath).
CONSULT @ EARLIEST!