What do you do if your dentist put crowns and a bridge on your two front teeth and now after about a year the crowns are a little loose and there is now a gap between your two front teeth?

Go back to the dentist and get them redone, they should garenty there work for 5 yrs. Or get in touch ADA in your state , American Dental Association.Even insurance com. will replace crns after 5yrs. Dental EDDA 20yrs. e I agree. See the dentist that placed the crowns. However, from what you describe, it may not be a crown issue. It may be a periodontal problem, and the teeth themselves are loose due to gum disease, or it may be an orthodontic problem where the bite is wrong and the teeth have shifted uncontrolled. Regardless of the cause, you need to see your dentist right away. You may also want to see another dentist for a second opinion. What you have described is not a good situation, not at all.