Teeth Whitening

Yes, on three counts. Professional-grade whitening is stronger and works faster than anything sold over the counter. It is supervised by a dental team, so your gums are protected and any sensitivity is managed as it happens. And it is custom-fitted to your teeth, giving even, natural brightness instead of patchy results.

Whitening gel contains peroxide, which breaks down into oxygen molecules small enough to pass through enamel into the dentine underneath. There they break apart the pigment molecules that have built up over years of coffee, tea, red wine and tobacco. Nothing is scraped off and no enamel is removed.

This is why whitening has a ceiling. It lifts the stain that has accumulated in your teeth; it cannot change the natural color your teeth were to begin with. Two people who whiten for the same length of time can finish at different shades, and that is biology rather than a failed treatment.

It also explains which stains respond. Yellowing from food, drink and age usually lifts well. Gray discoloration, particularly from old tetracycline exposure, responds slowly and incompletely. A single dark tooth after trauma or root canal treatment is a different problem that may need internal whitening or a cosmetic restoration instead.

Two different things are happening. Surface stain builds up on the enamel from coffee, tea, red wine and tobacco. Underneath, dentine naturally darkens and thickens with age while enamel thins, so more of that yellower layer shows through. Whitening addresses both, but by different amounts.

Extrinsic stain sits on the outside. It responds to a professional cleaning as much as to whitening, which is why we usually clean first; some people are happy with the result before any gel is used. Tea is a worse offender than coffee for most people, and smoking is in a category of its own.

Intrinsic color comes from inside the tooth. Dentine is naturally more yellow than enamel and lays down more of itself over a lifetime, so teeth at fifty are genuinely darker than the same teeth at twenty, regardless of diet. This is the part peroxide works on, and it is why whitening gives older patients a bigger visible change than they expect.

A few causes sit outside both groups. Tetracycline taken in childhood produces banded gray discoloration that whitens slowly and sometimes not fully. Fluorosis produces white mottling that whitening can actually make more obvious before it evens out. A single dark tooth usually means a dead nerve. Each of these needs a different plan, and spotting which one you have is the point of looking before quoting.

In-office whitening is faster and supervised, which suits a deadline or a history of sensitivity. Custom take-home trays work more gradually over one to two weeks, cost less, and leave you with trays you can reuse for touch-ups later. Many people do an in-office session and keep trays for maintenance.

Drugstore kits are not useless, and for mild staining on even front teeth they can help. They go wrong in two predictable ways: strips do not follow the curve of crowded teeth, so the overlaps stay dark, and ill-fitting trays leak gel onto the gums, which is what causes most of the burning people complain about.

Peroxide temporarily increases fluid movement in the microscopic tubules running through dentine, which the nerve reads as a short, sharp zing. It is reversible and it stops once treatment ends. Shorter wear times, a desensitizing gel and fluoride before and after keep it manageable for nearly everyone.

If you already get twinges with cold drinks, tell us before we start rather than after. Exposed root surfaces, cracked fillings and untreated decay all magnify sensitivity, and the first two are worth dealing with first. Sensitivity that arrives during whitening is not damage, but it is a signal to slow down, and slowing down almost never changes the final shade.

Practical measures that work: a sensitivity toothpaste for a week or two beforehand, whitening for shorter stretches rather than overnight, and skipping a day when teeth feel tender. Rushing is the single most common reason people abandon whitening before they reach the result they wanted.

Typically somewhere between six months and two years, depending almost entirely on what you drink and whether you smoke. Teeth do not snap back to the old shade; they dull gradually as new stain accumulates. A short touch-up with trays you already own restores the result cheaply.

The first forty-eight hours matter more than most people realize. Enamel is temporarily more porous right after whitening, so deeply colored food and drink in that window stains faster than usual. Coffee, tea, red wine, cola, soy sauce, tomato sauce, curry and berries are the usual suspects; if you cannot avoid coffee entirely, a straw and a rinse with water afterwards helps more than it sounds like it should.

Longer term, a cleaning every six months removes surface stain and keeps the result looking fresher, which is part of why people who keep their regular checkups report their whitening lasting longer.

Anyone with untreated decay or active gum disease should be treated first, because gel reaching an open cavity or inflamed tissue hurts and the result is uneven. Whitening is also not recommended during pregnancy or breastfeeding, and it does not change the color of crowns, veneers or fillings.

That last point is the one that catches people out. If you have a white filling or a crown on a front tooth, whitening will lighten everything around it and leave that restoration exactly as it is. Sometimes that is fine; sometimes it means the restoration has to be replaced afterwards to match, which is a cost worth knowing about in advance rather than discovering in the mirror.

Children and teenagers are usually asked to wait, since young teeth have larger nerve chambers and are more prone to sensitivity. And if you have had veneers planned, whitening comes first, so the porcelain can be matched to your final shade.

Because we check before we whiten. Whitening over untreated decay or gum disease causes pain and uneven results, so we make sure your teeth and gums are healthy first, then match the method to your goals, timeline and sensitivity. The price is clear and agreed up front, with no surprises afterward.

We also give you a realistic expectation before you spend anything. That means looking at your actual teeth, noting any restorations that will not change, and saying how much lift is plausible for your starting shade. Patients who are told that in advance are satisfied with the result far more often than those who were sold a number on a shade guide.

Dr. Sean Sayyar has practiced in the Richmond area since 1998 and holds Mastership of the Academy of General Dentistry. The office is at 5231 Hickory Park Drive, Suite E, Glen Allen, with free parking at the door and easy access from Short Pump, Innsbrook and the West End.