deep cavity in molar

I've got a a black cavity in the side of a molar near the gum line. It is a bit deep and slightly sensitive to water being squirted into it with a syringe.

Will mms flushes in the cavitation stop the cavity from continuing?

Has anyone ever experience a cavitation healing while using the mms?

Can this help to avoid root canal / extraction if treated and how long should the treatment be done before going to the dentist?

I'm trying to avoid major work and just get a simple filling.

thanks

did you ever get a reply?