Q. Hi i hope you can help, I have a bridge on my 3 front teeth,26 yrs old. one tooth has already had a root filling which was done 25 yrs ago , today my dentist had told me the other tooth needs a root filling done, its very painfull & sensitive. my concern is, is this the right treatment given how old the bridge is. i also have osteoporosis and am having intravenus treatment once a year for this, is it safe to have a root filling done. thankyou