Veneers or composite bonding: which makes sense when

Veneers and bonding: the real difference

The difference is not cheap versus expensive, it is how each is made. Composite bonding is a resin applied in layers and shaped directly on the tooth while you are in the chair. You see the result in the same visit.

A ceramic veneer is designed, made in a laboratory and bonded afterwards. Temporary veneers are worn in between. Ceramic is harder, more colour-stable and more wear-resistant than composite, but making room for it usually means removing enamel.

Every other difference follows from that: reversibility, longevity, how the colour behaves, whether it can be repaired, how many visits are needed and how the cost is built.

Reversibility and tooth structure

Bonding often removes no tooth structure at all, or very little. If the composite is taken off, the tooth is largely as it was. That makes it a sensible option for younger patients and when the decision about a final appearance has not settled yet.

Veneers in most cases involve removing a thin layer of enamel. That layer does not grow back and the tooth stays covered from then on. Minimal-preparation and no-preparation cases exist, typically small, worn or inward-standing teeth, but they are identified after examination and a diagnostic model rather than on request.

This is the difference we discuss first. Most other factors can be revisited later. Removed tooth structure cannot.

Longevity: what the data show

A systematic review and meta-analysis of 29 clinical studies reported 96.8% survival for lithium disilicate veneers at a mean follow-up of 10.4 years. A separate retrospective study of 318 veneers found 94.4% survival at five years, 93.5% at ten and 82.9% at twenty, with failure risk 7.7 times higher in patients with bruxism.

For composite, a review of 17 studies covering 1,821 anterior restorations followed at least three years reported an overall failure rate of 24.1% and annual failure of 0 to 4.1%. In posterior teeth, 90% of studies with at least five years of follow-up reported annual failure rates of 1 to 3%.

These datasets are not directly comparable, since the teeth, indications and failure criteria differ. The practical conclusion holds nonetheless: ceramic lasts longer, composite needs servicing more often.

Colour and staining

Composite is porous at a microscopic scale. Over the years the surface takes up pigment from coffee, tea, red wine and tobacco, and margins can darken. Some of that is removed by polishing at routine hygiene visits.

Ceramic is colour-stable. When its appearance changes, the cause is usually external: plaque accumulating at the gum margin, or the neighbouring natural teeth darkening. For that reason, if whitening is part of the plan, it is completed before the ceramic is made, not after.

Repair, replacement and cost over time

Bonding is repairable. A chipped corner or a worn edge can often be added to in the mouth without removing the whole restoration. That is a genuine advantage and one reason the treatment costs less at the outset.

A ceramic veneer is generally not repaired. A fracture through the full thickness means a new veneer. Comparing prices therefore only makes sense over a period: the lower initial cost of bonding includes more servicing, and the higher initial cost of ceramic buys a longer interval without intervention.

Neither veneers nor bonding have a published price, because the number of teeth and the scope of work differ in each case. The quotation is issued in writing after examination. Our published costs for other treatments are on the price list.

How the choice is made in practice

Bonding is sensible when the change is small, the teeth are sound, you want a reversible option, or you want to see the effect before committing to something irreversible. It also works well as a first stage for younger patients.

Veneers make sense when the colour does not respond to whitening, when the change in shape is larger, when extensive old restorations are already present, or when you want a longer horizon and accept the preparation involved.

With bruxism or an unstable bite, the cause comes first, whether that is a night guard or correcting the alignment, and only then the material. That applies equally to both treatments.