I get a lot of second-opinion appointments. Patients who had veneers placed somewhere else (sometimes recently, sometimes years ago) and want me to evaluate them. Or potential patients sending me phone photos of veneers they’ve seen in the wild and asking what’s wrong with them.
Five mistakes account for roughly 90% of bad veneer work. Here they are, in order of how often I see them.
1. Bulky shapes.
This is the most common mistake. The veneer is too thick relative to the natural tooth contour underneath, so the front of the tooth bulges forward. When the patient closes their lips, the upper lip pushes out slightly. When they smile, the smile looks pursed.
The cause is usually a no-prep Lumineer placed on a tooth that wasn’t a good candidate for it. The porcelain has nowhere to sit except on top of the existing tooth, so it adds bulk. A great no-prep case requires a tooth with room. Not every tooth has it.
How to spot it: profile photos. From the side, do the upper teeth project further forward than the upper lip? If yes, the veneer is bulky.
2. Shade mismatch.
This shows up as veneers that are noticeably brighter, whiter, or more opaque than the rest of the patient’s teeth. Common variation: the front 6 or 8 teeth are veneer-bright, but the canines and molars behind them are still the patient’s natural shade. The mouth has a brightness gradient that reads instantly fake.
Or the inverse: the patient asked for a softer shade but the lab delivered something brighter, and nobody caught it before bonding.
How to spot it: a real laugh photo, mouth wide open. Compare the front teeth to the canines and the upper molars. They should all be in the same family of color. If the front teeth glow brighter than the back teeth, the shade was overshot.
3. Off midline.
The midline is the vertical line between your two front teeth. In a balanced smile, the midline lines up with the philtrum (the dip between your nose and upper lip). When veneers are placed without checking facial symmetry, the new midline can shift left or right by a few millimeters.
The patient feels something is off but can’t articulate what. Photos look slightly “wrong.” That’s the midline.
How to spot it: a straight-on portrait photo. Drop a vertical line from the center of the nose. Does it land between the front teeth? If it lands on a tooth instead of the gap between, the midline is off.
A great cosmetic dentist obsesses over the midline before they obsess over color.
4. Visible margins.
The margin is where the veneer meets the natural tooth at the gum line. A great margin is invisible. The porcelain feathers into the tooth so cleanly that you can’t see the seam, even up close.
A bad margin shows up as a faint dark line right at the gum. Sometimes it’s an actual gap where the bonding has failed. Sometimes it’s the porcelain edge sitting slightly above the tooth and creating a shadow line. Either way, every smile photo has a thin dark border at the gum line of every tooth.
How to spot it: a smile photo with the upper lip pulled high. Look at the gum line. Can you see a faint dark line at the edge of every front tooth? That’s a visible margin.
5. The chiclet look.
This is the catch-all term for veneers that look like rectangular blocks of opaque ceramic. They’re flat, polished smooth, the same shade across every tooth, no translucency at the biting edge, and the same shape and length on each tooth.
It’s the most recognizable bad veneer pattern. Once you’ve seen it, you can’t unsee it.
The cause is a lab that didn’t hand-layer the porcelain, didn’t add surface texture, and built every tooth identically. Cheap, fast, and obvious.
How to spot it: the front 6 or 8 teeth all look identical in shape, length, and shade, with no individual character. Real teeth (and great veneers) have subtle variation. Each canine is slightly more pointed than each lateral. Each tooth catches light slightly differently. If everything looks like a row of ceramic kitchen tiles, it’s the chiclet look.
If you’ve had veneers placed and recognize one or more of these five mistakes in your own smile, come in for a second opinion. I do these consults regularly and I’ll tell you honestly whether the work needs to be redone, whether it can be refined, or whether the issue is small enough to live with. We can also talk about redoing them if it comes to that.