Yup the C(canadian)DA put that in place about a month ago of so and when I had Megan looked at because she smashed her teeth they said that she would need the Abx - of course my answer was no way in he** because of her past c-diff. The dentist was ok with this but he has delt alot with tricky cases - she was just fine after. We are trying not to have any Abx untill at least fall to give her gut time to heal and give her time to get rid of and resistant bactera so that we can use the less potent drug again.