Dental bonding is the least expensive cosmetic treatment in dentistry and the one most often undersold to patients, usually because it does not cost enough to be worth promoting.

For a chipped edge, a small gap, or an uneven tooth, it is frequently the right answer — done in one appointment, without drilling, and reversible if you change your mind.

What moves the price

Bonding is quoted per tooth, and the figure varies more than people expect for what sounds like one procedure.

How much of the tooth is involved. A small chip on an edge is quick. Rebuilding a whole front surface, or closing a noticeable gap, takes far longer and involves layering several shades to look convincing. The second may cost two or three times the first.

Whether it is one tooth or several. Matching two central incisors to each other is harder than treating one, because any asymmetry is directly visible.

Whether shade matching is demanding. Front teeth are not one colour — they are more translucent at the edge, more saturated at the gum, often with subtle characterisation. Reproducing that takes layering and time.

Whether other work is needed first. Decay has to be treated, gums have to be healthy, and whitening should be done before bonding rather than after — because the composite will not lighten with it.

What bonding does well

• Chipped edges — its best use, and often barely detectable afterwards
• Small gaps between front teeth, widened slightly to close them
• Reshaping a tooth that is pointed, short, or uneven against its neighbour
• Worn edges from grinding, rebuilt conservatively
• Exposed root surfaces at the gum line, where recession has made teeth sensitive and look longer
• Trialling a change before committing to veneers

Where it falls short

Honest limitations, because they determine whether you will be happy in three years.

It stains. Composite is slightly porous. Coffee, tea, red wine, turmeric and tobacco all show over time, particularly at the margins where the composite meets the tooth. Polishing helps; eventually it needs replacing.

It chips. Softer than enamel and much softer than porcelain. On a biting edge, on someone who grinds, it will not last as long as anyone would like.

It is harder to make several teeth look uniform. Each is sculpted freehand. Across six front teeth, porcelain veneers designed together will generally look more consistent.

It cannot cover deep discolouration reliably. Masking a dark tooth needs opaque layers, which can look flat. Porcelain handles this better.

How long it lasts

Typically several years, with wide variation depending on where it is and how you use it.

Longer on a surface that is not in the bite line. Shorter on a biting edge, and shorter still if you grind, open things with your teeth, or chew ice.

The usual end point is not dramatic failure. It is gradual staining at the edges and a loss of polish, until at some point you notice the tooth looks slightly different from its neighbour. It is then polished or replaced.

Repairs are cheap and quick, which is part of bonding's appeal. A chip is usually patched in a short appointment rather than starting again.

Making it last

• A night guard if you grind. This is the single biggest factor.
• Don't bite nails, pens, or thread
• Rinse with water after coffee, tea or red wine
• A non-abrasive toothpaste — whitening pastes scratch composite and scratches hold stain
• Regular polishing at your hygiene appointments, which restores the surface

Whiten before, not after

A point that costs people money when they get it the wrong way round.

Whitening works on natural enamel only. It has no effect on composite. So if you whiten after bonding, your natural teeth lighten and the bonding stays where it was — and suddenly it is visible.

Whiten first, let the shade settle for a week or two, then bond to match. If you already have bonding and want to whiten, plan on replacing the bonding afterwards.

Insurance

Purely cosmetic bonding is not covered. Bonding that restores actual damage — a fractured tooth, significant wear, an exposed sensitive root surface — often is, at least partly.

The distinction is clinical rather than rhetorical, and it is worth submitting a predetermination so you know before the appointment rather than after.

Getting a figure for your own teeth

Because the price depends so much on how much of the tooth is involved, a quote worth relying on comes from looking at it. Book a consultation and we will tell you what bonding would cost for your teeth — and whether it is the right treatment or whether something else would serve you better.

Common questions

How long does the appointment take?

Roughly half an hour to an hour per tooth, depending on how much is being built.

Does it hurt?

Usually there is no drilling, so no anaesthetic is needed. If decay is being removed at the same time, anaesthetic is used.

Will it match my teeth?

Shade is matched against your natural teeth in good light before starting. Front teeth are layered in several shades to reproduce the way enamel changes from gum to edge.

Can it be removed?

Yes. Because little or no enamel is removed, it can usually be polished off and the tooth returned to how it was.

How long before I can eat and drink normally?

It is fully hardened immediately. Avoid staining drinks for the first couple of days while the surface settles.

Is it cheaper than a veneer?

Considerably, per tooth. Over a decade of replacements the gap narrows, but rarely closes.

Why does bonding cost more on some teeth than others?

Because the work differs enormously. A small edge repair and rebuilding a whole front surface are quoted as the different procedures they are.

Can bonding fix crooked teeth?

It can disguise minor irregularity. Genuine crowding is an orthodontic problem, and masking it with composite usually looks bulky and traps plaque.