Teeth Whitening in Kennewick


There are many products and techniques available if you want to achieve a brighter smile, but with so many options available, it can be difficult to choose the method that is right for you. The best way to begin any teeth-whitening regimen is to schedule an appointment at our Kennewick dental office and talk to Dr. McNamara about the differences between in-office professional whitening and over-the-counter whitening.

Professional Whitening

In-Office Teeth Whitening

The first professional option is commonly referred to as in-office whitening. This procedure is performed in our Kennewick dental office. During your appointment, a member of the Mid-Columbia Dental team will apply a whitening agent to the surface of your teeth. The entire office visit generally takes about 90 minutes and you will be able to see results immediately.

At-Home Tray Whitening

Tray whitening is a type of professional whitening that uses custom-made trays and whitening gel only available at Mid-Columbia Dental. To whiten, simply place the whitening gel in your custom-fitted trays. As the peroxide in the gel breaks down, hydroxyradicals help to whiten stained teeth. Tray whitening brightens all your natural teeth and may contain ingredients intended to provide maximum comfort. At-home professional tray whitening generally takes ten to 14 days, although you may notice results in as little as three to five days.

Over-the-Counter Whitening

There are many over-the-counter teeth whitening options, and although they are readily available, it is wise to consult with Dr. McNamara before use.

Teeth-Whitening Strips

Teeth-whitening strips are thin, flexible plastic (polyethylene) strips with a thin film of hydrogen peroxide on one side. Whitening strip kits come with two types of strips: strips for the upper teeth and strips for the lower teeth. The whitening agent is applied by placing the strips across your teeth and gently pressing the strips to ensure contact with all your teeth. Teeth-whitening strips are typically worn for 30 minutes a day, twice a day. The duration of treatment will vary.

Paint-On Teeth Whiteners

Paint-on whiteners are less expensive and less effective than whitening strips or professional options. Paint-on teeth whiteners consist of a gel that is applied to the tooth using a small brush. Paint-on whitening gel hardens into a film that coats the teeth and dissolves in the mouth.

Whitening Toothpaste and Mouthwash

The least expensive options are whitening toothpastes and mouthwashes. Designed to have “whitening” capabilities, toothpastes and mouthwashes work to remove surface stains using mild abrasives. However, unlike the materials used in professional whitening procedures, these products do not lighten the actual color shade of the tooth. Whitening toothpastes affect surface stains and will mildly lighten your teeth.

If you would like to learn more about teeth whitening, please contact our Kennewick, Richland, and Pasco area dental practice to schedule an appointment.

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