How long does composite bonding last?
Years, not decades, and it depends on where it is and how it's treated. Truly Dental tells patients to expect minor touch-ups after 5 to 6 years (Truly Dental). The largest review of anterior composite restorations found annual failure rates from 0 to 4.1% and survival from 53.4% to 100% across 17 studies, with fracture the main reason for failure (Demarco et al.). Only 2 of the 75 Irish clinics in our survey put a written warranty on it (price survey).
Clinic prices re-read on each clinic's own website on 29 October 2026. Every figure links to its source.
Key points
- Clinic guidance: minor touch-ups after about 5 to 6 years (Truly Dental).
- Research: anterior composites survived 53% to 100% over 3+ years; composite veneers 88% pooled survival in trials of 2 to 8 years.
- Fracture is the main failure. Stain, roughness and colour mismatch are the main complaints.
- Written warranties are rare: Truly Dental 6 years, Boyne Dental 5 years with six-monthly check-ups.
What the studies measured
- Anterior composite restorations. Demarco and colleagues reviewed 17 clinical studies with at least three years of follow-up, 1,821 restorations in all. The total failure rate was 24.1%. Annual failure rates ranged from 0 to 4.1% and survival from 53.4% to 100%. Fracture of the tooth or the restoration was the most common failure; failures of appearance (colour, shape, surface stain) were more frequent when the work had been placed for aesthetic reasons (Demarco et al.).
- Composite veneers specifically. Lim and colleagues pooled randomised trials of resin composite laminate veneers: survival of 88% (95% CI 81% to 94%) with mean follow-up of 24 to 97 months. Direct composite veneers, built in the chair, survived better than indirect lab-made ones. Surface roughness, colour mismatch and marginal discolouration were the most reported complications, and most were judged clinically acceptable with or without a small repair (Lim et al.).
- For comparison, porcelain veneers reached an estimated 95.5% survival at 10 years in a review of 6,500 veneers (Alenezi et al.).
A restoration that "fails" in these studies usually means it chipped, debonded or had to be replaced. Much of the day-to-day wear on bonding, a dulled surface or a stain line at the edge, counts as a complication that a polish or a small repair fixes, not a failure.
What clinics say
Truly Dental: with good hygiene and regular check-ups bonding "can last for many years", and "most patients will require some minor touch ups after 5 to 6 years" to refresh it. It offers a six-year warranty on most bonding, altering or restoring the composite without extra charge in that time (Truly Dental). Boyne Dental guarantees many treatments for five years, subject to six-monthly check-ups and the maintenance the dentist prescribes (Boyne Dental). Those were the only two written guarantees among 75 clinics in our survey; almost every clinic says how long bonding lasts, almost none commits to anything if it doesn't (price survey).
What shortens it
- Biting on it. Edge bonding on the front teeth takes the load every time you bite into something hard. Fracture is the main failure in the studies.
- Grinding and clenching. Night-time grinding chips edges. A night guard is a common recommendation; Shelbourne publishes a bilaminate night guard at €180 (Shelbourne).
- Stain. Tea, coffee, red wine and smoking stain the surface and the margin. Composite isn't glazed the way porcelain is.
- Nail biting, pen chewing, opening packets with your teeth. All of it lands on the bonded edge.
- Skipping the hygienist. Truly Dental recommends six-monthly cleanings to lift stain and keep the bonding looking new.
What extends it
- Whiten before bonding, not after, so the shade is right from the start. Composite doesn't change colour with whitening gel.
- Have the bite checked at the fit appointment. Composite that takes the first contact when you close will chip.
- Keep the six-monthly check-ups, which is also the condition on Boyne Dental's guarantee.
- Treat a small chip early. Adding to existing composite is a quick repair; a lost edge is a rebuild.
Day-to-day care, food and night guards: composite bonding aftercare.
What a repair or redo costs
Clinics rarely publish a separate repair price. In practice the dentist either adds resin to the existing bonding, polishes it, or removes and redoes the tooth at the per-tooth bonding price. Published bonding prices run €125 to €800 a tooth in Ireland, median €250 (price survey); the full list is on the cost page. If a clinic offers a warranty, ask what it covers: Truly Dental's covers altering or restoring the composite; Boyne Dental's depends on keeping check-ups.
Questions to ask before you book
- Edge bonding or a full composite veneer on each tooth, and why?
- What do you expect it to look like at five years, and what will you do then?
- Is there a written guarantee, and what are its conditions?
- What does a repair cost, as opposed to a redo?
- Should I wear a night guard?
Weighing it against porcelain? See bonding vs veneers.
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Free smile previewLifespan questions
How many years does composite bonding last?
Clinics say to expect touch-ups after about 5 to 6 years (Truly Dental). In clinical studies, anterior composite restorations survived 53.4% to 100% over three years or more, with annual failure rates of 0 to 4.1% (Demarco et al.).
Does composite bonding on front teeth last as long as on back teeth?
Front-tooth bonding takes biting forces on a thin edge, and fracture is the main failure in the studies. Class III fillings on the side of front teeth had lower failure rates than edge and veneer-type restorations in the 2015 review.
What does composite bonding look like after 5 years?
Often slightly duller, with some surface stain and possibly a stain line at the margin. The 2023 meta-analysis listed surface roughness, colour mismatch and marginal discolouration as the most common complications, most of them fixable with a polish or a small repair.
Do Irish clinics guarantee composite bonding?
Rarely. Of 75 clinics in our September 2026 survey, two publish a written guarantee: Truly Dental at six years and Boyne Dental at five, conditional on six-monthly check-ups.
Can composite bonding be repaired?
Yes, usually by adding resin to the existing bonding and polishing it. A tooth that has lost its edge is rebuilt, generally at the clinic's per-tooth bonding price.
More composite bonding guides
AftercareThe first 48 hours, food, stain and night guards.Edge bondingEdge only or the whole tooth, and the price gap.Whitening before bondingThe order, the 2-week wait, the prices.Bonding vs veneersPrice, lifespan and what each does to the tooth.Bonding vs fillings and whiteningSame material, different job.Paying for itPlans, interest, tax relief.Turkey vs IrelandThe published prices, and the Dental Council's checklist.What it costs in Ireland75 clinics' published prices.The 2026 price surveyMethod, medians and the CSV.