Why veneers look fake, and the five details that prevent it

You have never been given a lecture on dental aesthetics, and you can still spot bad veneers across a restaurant. That instinct is real, and it is specific. Your eye is catching a short list of things that never occur in nature.

Knowing what those things are is useful, because it is how you evaluate someone's work before you commit to something permanent.

1. Every tooth is the same width

Natural front teeth follow a proportion. The two central incisors are the widest, the laterals beside them are noticeably narrower, and the canines turn the corner of the arch. Roughly speaking each tooth appears about two-thirds the width of the one before it as your eye travels back.

Cheap cases ignore this and make everything the same width, which is faster to fabricate and produces a row of identical tiles. Nothing about it is subtle, and it is usually the first thing the eye catches even when the viewer cannot articulate it.

2. There is no translucency at the edge

This is the big one. A natural tooth is not uniformly opaque. At the biting edge the enamel thins out and becomes slightly see-through, picking up a faint gray or bluish cast from whatever is behind it. Near the gum it is warmer and more saturated, because the dentin underneath shows through more.

A single flat shade of white from gum to edge reads as a fake instantly, even in a photograph. Building that gradient requires layering ceramic rather than milling one uniform block, and it is genuinely more work. It is also the difference between porcelain that disappears and porcelain that announces itself.

3. The surface is polished flat

Look closely at a real tooth in raking light and you will see faint horizontal ridges called perikymata, plus subtle lobes running vertically down the face. That micro-texture scatters light unevenly, which is exactly what makes enamel look alive.

Buff porcelain to a uniform high gloss and it reflects light like a bathroom tile: one bright specular highlight, no depth. Photographs are merciless about this, which is why some smiles look fine in person and obviously done on camera.

4. The length ignores the face

Tooth length gets decided while the patient is lying back in a chair with their mouth open, which is the one position that tells you nothing about how they look in life.

What actually matters is how much tooth shows when you talk, when you smile without thinking about it, and when your face is at rest. Teeth that are too long look equine and force an unnatural lip position. Teeth that are too short leave you looking the same as before you spent the money. Neither can be assessed from a supine patient, and both are common.

5. They did too many teeth

There is a decision on every case about where to stop: six teeth, eight, ten, or twelve. Get it wrong and there is a visible seam in the smile where bright uniform porcelain suddenly meets natural tooth, usually at the canines, and it is glaring in photographs taken from an angle.

Doing more teeth is not automatically better. Where the transition lands relative to how wide you actually smile is a judgment call, and it is one of the clearest indicators of whether someone is thinking about the finished face or just the teeth in front of them.

How to use this

When you look at a dentist's case photos, ignore the marketing and look for these specifically:

• Do the laterals look narrower than the centrals, or is everything one width?
• Is there any variation in translucency from gum to biting edge?
• In a close-up, does the surface have texture or is it glassy?
• Can you find the transition to natural teeth, or does it blend?
• Do the smiles look like different people, or like the same set of teeth pasted onto different faces?

That last one matters most. A portfolio where every case looks identical means the work is being designed to a template rather than to a face. The whole objective is a smile that looks like it grew there.