A veneer is a thin ceramic facing bonded to the front of a tooth. The aim is to change shape and colour while removing as little enamel as possible — on a minimally prepared tooth that is roughly 0.3–0.8 mm, and it does not grow back.
Veneers solve problems of shape, colour and position in the front teeth. They do not solve a bite problem, and they do not straighten crowded teeth as well as orthodontics does.
Where crowding is significant, orthodontics first is usually the better plan: fewer teeth are cut and the result lasts longer. Veneers over crowded teeth end up thick, opaque and hard to clean.
The material is chosen by how much tooth is missing, how much enamel can be kept and whether the case is one tooth or a full smile.
The default for most veneers: pressed or milled lithium disilicate, bonded with resin cement. Strong enough for front teeth and premolars, translucent enough to behave like enamel, and it asks for about 0.3–0.8 mm of reduction rather than a full crown.
Hand-layered by a ceramist instead of milled, so colour and translucency are built in layers. The most lifelike option for a single visible tooth; also thinner, more technique-sensitive and more expensive.
Resin built directly on the tooth, no enamel removed, finished in one visit and reversible. It stains and chips sooner — five to seven years is realistic — so it suits small repairs or a trial of the shape before committing to ceramic.
Photographs, x-rays, shade and bite. The first question is whether orthodontics would give a better result; the second is how much enamel there is to work with.
Under local anaesthetic the enamel is reduced by the thickness of the planned ceramic, a scan is taken, and temporary veneers are fitted so the teeth are not left exposed or sensitive.
The ceramic is tried in with water-soluble paste before anything is bonded. Fit, colour and shape are checked in daylight, not only under the surgery light.
Under rubber dam the enamel is etched, the veneer is bonded with resin cement, excess is cleared from the margins and the bite is refined. This part is not reversible.
A check at one to two weeks, a night guard if you grind, and cleaning instructions that include floss at the margin. Nails, ice and pen caps are what break veneers.
The procedure is small but the trade is permanent. These are the limits worth understanding before the first tooth is prepared.
The strongest argument for conservative preparation is not the first five years but the third replacement: each remake removes a little more tooth, and there is a floor to how much can go.
Between 0.3 and 0.8 mm on a typical E-max veneer, and sometimes none at all where the tooth is already worn. The number is set by the thickness the ceramic needs to be strong and by how far the tooth has to move visually.
The ceramic itself does not absorb colour the way resin does. What changes is the margin: if the junction with the tooth is exposed or poorly cleaned, it darkens. Polishing at routine visits keeps it looking clean.
Only if too much is added. A veneer can make a tooth longer or wider, but it cannot make it thinner than the tooth already is, so a prominent tooth needs preparation rather than more ceramic. This is settled at the design stage, not after bonding.
Ten years and often more for well-made, well-maintained veneers. Failures are usually chips at the incisal edge or leakage at the margin, and both are more common in grinders without a night guard.
A close, focused photograph and a front view are enough to say whether a veneer, bonding or orthodontics is the more sensible route, and what the preparation would cost you in enamel.
General information, not medical advice. Suitability can only be judged after examining the teeth, the gums, the bite and the medical history; results vary between patients.
