Gum Discomfort/burning Sensation Just Above the Veneer, Is This Normal?

Most often, porcelain veneers have no issues at ALL.... However, the edges can be too close to the gums or other issues. Go back to the original dentist and see what HE says....

Since you have had four veneers placed and only the area above one is giving you grief, it is obviously a localized problem. Obviously you need to go back to the dentist who placed the veneer and resolve the gum problem. The veneer could have been placed to close to the bone abd the gum will not heal and is inflammed. Also the veneer could have been placed to close to the gum and there is constant irritation in that one area. I think the problem is resolvable and your dentist can take care of it. Do not continue to go on like this. Make the appointment and have him check the gum and the placement of the veneer. You mentioned you have good oral hygiene and a competent dentist so this issue should be resolved quickly.

It would be unusual to all of a sudden have an allergic reaction on just one veneer several weeks after placement.  Therefore, it is probably not an allergic reaction.   My recommendation would be to go back to your dentist hand have them take an xray and take a look at your gum.  It could be as simple as being a piece of bonding cement that dislodged and is irritating your gum.  Many patients feel that you are bothering your dentist to call them and ask for them to take a look, but most dentists want to know if you are having any problems right away.  So don't hesitate to give your dentist a call.

Most patients do not have adverse reactions to restoration such as porcelain veneers.  In rare cases, a patient may have an alergic reaction to the restorative or bonding materials, but these usually manifest themselves shortly after placement. 

In your case the sensation involves one of four teeth, suggesting a localized problem.  Issues may include the veneer being placed too close to the bone supporting the tooth (violating the biologic width), excess bonding material trapped under the gumline and causing a local irritation or my favorite, PCKS.

PCKS stands for Pop Corn Kernel Syndrome.  When corn is popped, it's thin outer shell fractures and can be easily caught under the gums.  Like a suction cup, this shard can adhere to the tooth and be difficult to remove.  Dental floss can generally catch the edge and remove the shard.  Similar irritation can result from other food debris getting caught under the gums.

Arrange to see your dentist.  Simple removal of the cement or food debris stuck inthis area may quickly alleviate your symptoms.

In most instances procelain veneers have no problems at all. If the end of the veneer is under the gum it may be causing an irritation or they may have left some cement under the gum.  Could be a varietey of different things.  I would go back to the original dentist and have them check the area