The first question for you is how long has it been since your teeth have been checked by a dentist and you have had your teeth cleaned and polished by a dental hygienist? If it has been over six months, suggest that be your first order of business.Yes, you could have food and bacteria wedged...
Most cosmetic dentists will have this discussion with the patient before doing any crowns in the front of the mouth. Standard protocol is if doing a few crowns or veneers, to match the adjacent teeth. If the patient wants their teeth to be whiter, then usually a patient will bleach their teeth...
It seems that you have a problem with the retention of the crown that most of the time is because either the preparation was not well down and is too tapered or there is mort sufficient tooth structure to hold the crown, on either case you could have the prep rebuilt and get a new crown or in...