Sacramento Dentistry Group

Teeth whitening

Professional teeth whitening

Lift years of coffee, wine, and food staining in a single appointment, or fade them gradually with custom take home trays. Both use professional strength gel and both are supervised by a dentist who cares about the rest of your mouth, not just the color.

What professional whitening actually is

Professional teeth whitening uses a peroxide based gel, either hydrogen peroxide or carbamide peroxide, to break down the staining molecules that build up inside the enamel and dentin over time. The gel does not remove any tooth structure. It diffuses into the tooth and oxidizes the pigment that has accumulated from years of coffee, tea, red wine, dark sodas, berries, curry, tobacco, and simple aging. The color change is dramatic precisely because you are removing staining that has built up slowly, often for decades.

There are two things that make professional whitening different from grabbing something at the drugstore. The first is strength and delivery. Our gel is significantly more concentrated than over the counter strips, and either our custom trays or our in office isolation technique keep the gel exactly where it needs to be. The second is the dentist. Before we whiten anything we check for active decay, leaking old fillings, exposed root surfaces, and gum recession, because applying strong bleach on top of any of those can turn a cosmetic appointment into a painful one. That screening is most of the difference between a good whitening experience and a bad one.

In office whitening versus take home trays

We offer both paths and both work well. The choice usually comes down to timing and sensitivity.

  • In office whitening is the fastest option. One appointment, roughly 45 to 60 minutes in the chair, and you walk out visibly whiter. A protective barrier is placed over your gums, the whitening gel is painted on the front of your teeth, and it is activated with a specialized light. We repeat the application in 15 minute cycles until we reach the target shade. This is the right choice if you have an event coming up, if you want the change in a single visit, or if you are simply not going to be consistent with home trays.
  • Custom take home trays are the flexible option. We take a digital impression of your teeth with our iTero scanner and fabricate trays that fit precisely. You wear them at home for about 30 to 60 minutes a day over two weeks with professional strength gel we provide. The final result is comparable to in office whitening, and you keep the trays to do touch up sessions for years afterward. Take home is often the better choice if you have sensitive teeth, since the lower concentration gel is gentler.
  • Combined approach. Some patients get the fastest jump start with in office whitening and then maintain or push it further with take home trays. For a cosmetic case building toward veneers, this is often the best sequence.

Professional whitening versus drugstore kits

There is a legitimate place for over the counter whitening strips for light staining and for patients who already have a healthy mouth and just want a small bump. For anything beyond that, drugstore whitening has real limits. The strips only cover the front part of the front teeth, they slip and leak around canines and molars, they use lower peroxide concentration, they do not get filtered for pre existing sensitivity or decay, and the results are uneven because the strips do not match your tooth shape.

The bigger issue is what happens when something goes wrong. Whitening gel over an old leaking filling, a crack, or gum recession can cause serious sensitivity, and whitening over active decay can make the decay worse. A dentist screening your mouth first is worth the extra cost of professional whitening by itself, before you even consider that the result looks better.

Who is a good candidate

Most adults are. The ideal candidate has healthy teeth and gums, no active decay, no leaking restorations, and staining that is surface level or caused by food, drink, tobacco, or age. Whitening works best on yellow and brown discoloration. Gray staining from old tetracycline exposure, dental trauma, or deep internal staining is harder and may need veneers or bonding to fully correct.

A few groups should wait or plan carefully. Pregnant and breastfeeding patients should hold off until after. Teens under 16 usually should wait for their enamel to finish maturing. Patients with severe sensitivity or receding gums need a gentler protocol. And if you have crowns, veneers, or large fillings on your front teeth, we will walk you through the plan carefully, because the whitening will not change their color and you do not want a surprise.

What the appointment looks like

An in office whitening visit is structured and predictable.

  1. Exam and shade match. A quick look at your teeth and gums to make sure nothing would complicate whitening, a cleaning if you are due, and a shade tab photograph so you can compare before and after.
  2. Isolation. A retractor holds your cheeks and lips comfortably away from your teeth, and a protective resin barrier is painted along the gum line and cured so the whitening gel only touches enamel.
  3. Gel application. The professional strength whitening gel is applied to the front of the teeth being treated.
  4. Activation and cycles. The gel sits for about 15 minutes per cycle, activated with our whitening light, and the process is repeated two to four times until we hit the target shade.
  5. Finish. The barrier is lifted off, your teeth are polished and rinsed, we take the after photograph, and you see the before and after side by side. We send you home with simple instructions for the next 24 to 48 hours.

Take home whitening is similar in spirit but delivered over two weeks. First visit is an iTero scan and tray fabrication. Second visit is a quick fitting and a demonstration of how to load and wear the trays. You do the actual whitening at home, and we check in at the end.

Sensitivity and safety

The most common side effect of whitening is temporary sensitivity. Some patients feel brief zinging sensations during treatment. Others notice mild sensitivity to cold for a day or two afterward. It almost always resolves on its own within 48 hours and is not a sign of damage to the enamel.

If you are prone to sensitivity, we use a lower concentration gel, add desensitizing agents, and recommend a potassium nitrate based toothpaste like Sensodyne for a week before and after the appointment. For patients with significant sensitivity history, take home trays at a lower concentration over more days are usually the better path. We will plan around your mouth, not force your mouth to handle a protocol that is wrong for it.

Properly done professional whitening does not damage enamel, does not cause lasting sensitivity, and does not harm gum tissue. Those outcomes come from skipping the dental exam or misusing drugstore products. Supervised whitening has an excellent safety record.

How long results last and how to maintain them

Whitening results typically last six months to two years before a touch up is helpful. Lifestyle is the biggest variable. If you drink a lot of coffee, tea, or red wine, or use tobacco, expect staining to return faster. A few things extend your results:

  • Rinse with water after coffee, tea, and wine, and avoid brushing for 30 minutes after acidic drinks
  • Drink dark beverages through a straw when practical
  • Use a whitening toothpaste containing gentle polishing agents, not abrasive scrubs
  • Come in for your regular cleanings to remove surface staining before it soaks in
  • Do a touch up with your take home trays every few months, one or two nights at a time, to maintain the shade

Cost and scheduling

Professional whitening is an elective cosmetic treatment and is not typically covered by dental insurance. We quote a flat fee for in office whitening and a separate flat fee for custom take home trays, both of which we will confirm in writing at your consultation. For cosmetic cases that bundle whitening with veneers or bonding, we discuss the overall treatment cost and offer Cherry financing with 0% APR plans for qualified patients.

Many patients come in for whitening the same day as a regular cleaning, which is an efficient use of a single appointment and gives you a cleaner starting surface for the gel. Request a whitening appointment online and tell us whether you are leaning in office or take home. We will help you decide from there.

FAQ

Frequently asked questions

Common questions about in office and take home teeth whitening.

How much whiter will my teeth actually get?

Most patients see their teeth lighten between four and eight shades in a single in office visit, and take home trays used consistently over two weeks produce a similar result. The exact change depends on the starting shade, the type of staining, and how your enamel responds. Yellow and brown stains from food, coffee, wine, and tobacco lift well. Gray staining from old tetracycline or trauma is harder and may not fully respond to whitening alone.

Is professional teeth whitening safe?

Yes. Professional whitening uses peroxide gels that have been studied for decades and are safe for enamel when used as directed and supervised by a dentist. We check for decay, leaking restorations, and gum issues before whitening begins so the bleaching gel does not aggravate an underlying problem. The risks of whitening at home without a dentist are almost always a result of skipping that screening step, not the bleach itself.

Will whitening work on crowns, veneers, or fillings?

No. Whitening gel only changes the color of natural enamel and dentin. Porcelain, ceramic, and composite restorations keep their original shade, which means if you whiten heavily around existing dental work, the work will suddenly look darker than the rest of your teeth. We walk through this at the consultation so you know what to expect, and in cosmetic cases we sequence whitening before veneers or crowns so the lab can match the final shade to your whiter teeth.

Does teeth whitening hurt?

Professional whitening is not painful. Some patients get temporary tooth sensitivity or brief zinging sensations during or right after treatment, usually the first 24 to 48 hours. We use lower sensitivity formulas and a desensitizing gel to minimize it, and switching to a potassium nitrate toothpaste for a week before and after whitening helps a lot. If you have a history of severe sensitivity, we will often recommend the take home approach instead, at a lower gel concentration used over more days.

How long do the results last?

Somewhere between six months and two years for most patients, depending on lifestyle. Coffee, tea, red wine, dark sodas, berries, and tobacco will pull the color back down over time. A simple touch up with your take home trays every few months is the easiest way to maintain results once you have them.

Are over the counter whitening strips as good as professional whitening?

No, and this is not a close call. Drugstore strips use a much lower concentration of peroxide, are not shaped to your teeth, and often bleach unevenly or skip the areas closest to the gum line. Professional whitening uses stronger gel, custom fitted trays or in office application, and a dentist screening your mouth first so stains on fillings, decay, and gum recession do not become a problem. The gap in results and safety between drugstore and professional is larger than the gap in price.

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Ready for a brighter smile?

One appointment for fast results, or custom take home trays for a gradual lift. Both use professional strength gel and both are supervised.