Veneer keeps falling off due to grinding.

The tooth next to your front tooth is called the lateral incisor, and is the smallest of all your upper front teeth.  Because it is the smallest, it generally has the least retentive ability, and as such is usually the tooth that most often has veneers that come off.The fact that it has come off a few times already may not have anything to do with the dentists ability to bond the veneer onto the smaller lateral incisor.  It may be due to your grinding habits, or just the small surface area of the tooth that your dentist has to bond onto.  There may be different types of tooth preparation that your dentist may try that might give him more "retention" (i.e. going around the tooth more).  Or, possibly he may consider reverting to a bonded full crown restoration which would have much more retention.Of course, if it is coming off at night when you grind your teeth, then you should certainly have your dentist make you a "night guard" bruxism appliance to help.

This is an unfortunate situation. If you do grind your teeth at night it can make it very hard to bond the veneers adequately or keep them chipping or fracturing. No amount of bond strength or material would be able to hold up to the forces your are able to put on the veneers. A hard night guard to be worn while you sleep that would keep you from being able to grind on the veneers might be a good idea. Otherwise full coverage crowns might be needed.

I am so sorry that you are having this problem, but some people who grind and clench their teeth are notappropriate candidates for Veneers.  Maybe crown placement would be your best bet, but I think the dentist did the veneers and if you did not grind your teeth they would have lasted.  Bonding is not a good choice either, because the grinding will cause the bonds to crack, chip and break off.  Please take time to adjust your bite and wear a bite guard at night so you will place less stress on your teeth.  Good luck to you and, again I so sorry for your outcome.