Whiten First, Then Bond

Why Does the Order Matter?

Whitening only works on natural teeth. Composite bonding and porcelain veneers keep the colour they're made in: the shade is chosen on the day to match the teeth around them, and no gel changes it afterwards. If you bond first and whiten later, the natural teeth get lighter and the bonding doesn't, so they no longer match, and the only fix is to refresh or replace the bonding at £395 per tooth.

Whiten first and the problem never arises. Your natural teeth reach the shade you want, the bonding or veneers are built to match it, and the whole smile is one colour. Most people choose a natural B1 shade, though your bonding can be brighter, or as age-appropriate as you like. It's a small point of sequencing that saves money and a second round of treatment.

How Long Should You Wait?

Usually around two weeks after whitening. There are two reasons. The first is colour: teeth look their lightest immediately after whitening and settle slightly over the following days as the enamel rehydrates, so a shade matched on the day you finish would end up a touch too bright. The second is the bond itself. Freshly whitened enamel doesn't bond as strongly to composite, and giving it around two weeks restores the full bond strength.

Two weeks is a guide, not a hard rule. If the shade is still changing, or your teeth are sensitive, we'd rather wait a few more days than match to a moving target. Your dentist checks the shade at the start of the bonding appointment before any composite is placed.

How the Whitening Itself Works

We use Boutique home whitening. Your dentist checks your teeth first for decay and gum disease, and notes any fillings, crowns or veneers that won't change colour. A quick iTero Lumina scan, with no putty, is used to make trays that fit your teeth exactly. We fit the trays, show you how much gel to use and for how long, and record your starting shade. You then whiten at home for a short time each day over two to three weeks, and we review the result against where you started.

Home whitening is £350, or £315 for dental plan members, and it's included in every Invisalign and composite bonding package.² Some temporary sensitivity is common and settles when you stop. We don't whiten under 18s, except to treat a dental condition, or during pregnancy or breastfeeding. Our whitening page has the details.

The Usual Order

• Straighten, if needed, with Invisalign. Teeth in the right place first means bonding or veneers can be thinner, or aren't needed at all. Every Invisalign package includes whitening and Vivera retainers.
• Whiten. This sets the base shade for everything that follows.
• Bond or veneer, matched to your new shade. Composite or porcelain is built or made to match the whitened teeth.
• Retainers at night. They keep the teeth where they were straightened and protect the bonding.

That order is the backbone of every smile makeover we plan. Getting it right is what makes the result last, because each step is done to teeth that are already in their final position and colour, rather than being redone later to catch up.

Existing Bonding or Crowns?

They won't whiten. White fillings, crowns, bonding and veneers all keep their colour, so after whitening they can stand out as darker than the teeth around them. If they're on front teeth, we plan to refresh or replace them after whitening so everything matches, and we tell you before you start which ones are likely to need it. On back teeth, where they don't show, we usually leave them alone.

Old composite veneers that have stained or never looked natural are a good example. Whitening the natural teeth first, then replacing the veneers to the new shade, deals with both problems in the right order. Your dentist notes every restoration at the dental examination before whitening, so there are no surprises when the trays come out.

If You've Already Had Bonding

You can still whiten. The natural teeth will lighten and the bonding won't, so the bonding is then refreshed to match. If the bonding is on one or two teeth, that's a short visit at £395 per tooth. If it's across the front six or more, it may be worth planning a full refresh as a package, with the whitening included.

It's a good moment to ask whether the existing bonding is still right for you. If it has stained, chipped more than once or never quite matched, a refresh after whitening gives a cleaner result than patching it. Our guide to caring for bonding explains how to tell when a refresh is due.

Timeline From Start to Finish

• Consultation. A check of your teeth and gums, a scan for your trays, and a written plan. The consultation is free, with a £40 deposit refunded within 7 days of attending.
• Whitening at home. Two to three weeks, a short time each day.
• Settling. Around two weeks for the shade to settle and the enamel to bond at full strength.
• Bonding or veneer preparation. Edge bonding usually takes one visit; composite veneers one or two; porcelain veneers three to four weeks from design to fit.
• Review. About two weeks after bonding, to check your bite and give a final polish.

For whitening and bonding together, that's roughly six to eight weeks from your first day of whitening to the final polish, depending on bookings. Your written plan sets out the exact sequence and timing.

Questions

This guide is general information, not a diagnosis. A dentist needs to examine you to say what is right for your teeth.