Below is a list of some of the questions we get asked most frequently from our patients regarding teeth whitening and the different available options. If you have a question that isn't answered below, feel free to give our office a call at (519) 669-1526 and we'll be happy to assist you.
• Why do our teeth turn yellow?
While our teeth start out pearly white, they can discolor through the years as our enamel wears down. The wearing down of enamel allows dentin, a yellow color substance that makes the core of our teeth, to show through. This is what gives our teeth a yellowish tint.
• What are the different types of teeth whitening options?
Below are the three most popular teeth whitening options available today.
In-office teeth whitening:
In-office teeth whitening works by producing a significant color change in your teeth in short amount of time, usually within an hour. The procedure is done at the dentist's office applying a high-concentration peroxide gel on the teeth after they have been protected with a special shield.
Professionally Dispensed Take-Home Whitening Kits:
These whitening kits are purchased from your doctor for use at home. The strength of the gel used in these kits is lower than that used for in-office bleaching, and thus the gel can be applied for longer periods of time. Usually, the trays are worn a couple hours a day or overnight for a few days or weeks depending on the product.
Over the Counter Whitening:
Over the counter teeth whitening kits are store-bought and use a lower concentration gel than both in-office bleaching and take-home kits purchased from your doctor. While they are less expensive, they typically are less effective than methods that can be performed by your dentist because of the low concentration gel. Additionally, over the counter trays are not custom fit for your teeth, which can result in irritation to your gums while wearing the trays.
• How long does teeth whitening last?
Teeth whitening usually lasts from one to three years before darkening of the teeth is noticed. Additionally, once your teeth have been initially whitened, typically only "touch ups" are required to maintain the whiteness.