1 of my brand new permanent veneers fell off last night while eating. It was a premolar, one of 8 restorations. What now?(photo)

A thorough reexamination of the tooth, the veneer and the bite needs to be completed prior to deciding if the same veneer can just be rebonded.The number one reason I have seen that veneers debond is due to a heavy and improper bite on that veneer/tooth.If a bite adjustment is warranted and possible then the veneer many times can just be rebonded and have a long healthy life.However, if the tooth was left  too short after preperation, or if the tooth has broken then a crown may be indicated on this tooth. If the porcelain on the veneer is chipped or in way is found to be distorted, then a new veneer would be needed.

Porcelain veneers are not supposed to fall or dislodge from your tooth !Contact the cosmetic dentist and let him evaluate the reason, and let him help you re-bond the veneer.problem may be :1- too much removal of your tooth structure, and dentin exposure, vs being on the enamel!2- the bonding to your tooth must be re evaluated, to make sure proper steps has been taken.3- your bite and occlusion must be evaluate.4-the conditioning of your porcelain veneer prior to bonding must be reevaluated by your dentist.Out of the above four possibilities of why your porcelain veneer popped off, I am hoping that the preparation of your tooth was not aggressive and mostly in dentin!The more enamel is preserved, the longer your porcelain veneers will last. The rest can be fixed.

If the veneer fits well and your dentist feels that he/she can cleanout any residual cement without damaging the veneer then it seems plausible that re-cementing would be the first step.It is possible that the surface somehow contacted your salivaand reduced its ability to bond to the tooth.  Your smile does lookvery nice and I am sure your dentist is highly capable to rectify this.A bite check could also offer some clues as to why it became dislodged.

there r two possiblitiesjust check1. if it is oky, no crack or broken , in that case only recementation required2. if damaged or broken, new veneers

Hi! As mentioned in the previous post, veneers shouldn't just fall off and if they do, the reason for the failure needs to be determined in order to know how to proceed with fixing the situation. It could be that improper bonding technique was used (too much moisture, failure to properly prepare/silanate the unit), and in such a case you may be able to recement the same veneer. It could also be that the tooth has more dentin exposed which affects bonding, which may mean that tooth may be better off with a crown. Or it could be your occlusion (ie. your "bite") that needs to be adjusted. So there's no simple answer, but definitely return to your doctor and s/he should be able to fix your gorgeous new smile. Good luck!