Skip to Main Content

Now welcoming patients with Canadian Dental Care Plan (CDCP) coverage!


Does teeth whitening damage dental enamel?

As more and more people become more health-conscious, they are starting to ask our Toothworks dentists questions about whether teeth whitening can damage enamel. In this post, our dentists at Toothworks The Boardwalk Dental discuss teeth-whitening procedures and whether or not they pose a risk to teeth health.

If you begin to notice a yellow tint in your teeth, you may be wondering whether a teeth whitening treatment is right for you. If you are concerned about the procedure damaging your teeth, read on below.

What is tooth enamel?

Tooth enamel is the thin outer layer of the tooth. Visible from the gum and covering the crown, the tooth's hard outer surface is its first defence against harm. Because enamel protects the inner portion of the tooth, it is prone to wear and tear, and can eventually break down. Exposure to sugar, starches, or acidic substances is the leading cause of enamel breakdown.

Can I stop my enamel from breaking down?

Enamel is tough, but it's not indestructible. Thankfully, there are steps you can take to help slow or even halt the process of enamel breakdown.

One of the simpler ways to curb enamel breakdown is to stop eating and drinking sugary and/or acidic beverages. When these sugary drinks interact with the tooth, they produce a lactic acid that can chip away at the enamel over time.

Even having acid reflux, a dry mouth, or being on medications can sometimes cause tooth enamel to break down. Visiting your doctor to have health issues like these diagnosed and treated, and learning about the potential side effects of medications you are taking, are important steps in protecting your enamel, and your overall health too!

Friction caused by teeth grinding, brushing too hard, or eating hard foods can also damage tooth enamel. If you grind your teeth, talk to your dentist about a nightguard. Be sure to brush your teeth slowly and carefully, using a circular rather than a sawing motion. And if you have a habit of chewing on things like pen caps, ice, or your fingernails, start working on breaking it!

Finally, the most important thing you can do to protect your dental enamel is to practice good oral hygiene. Brush your teeth twice a day and floss once a day to remove plaque buildup, which can erode your enamel. If you're particularly concerned, you can consult your dentist about enamel-strengthening products such as toothpaste and mouthwash to help prevent erosion.

What are some signs of enamel erosion?

Some of the more common signs of enamel erosion include sensitivity to some foods, sensitivity to hot and/or cold, discolouration, rough or jagged teeth, and indentations on the surface of your teeth.

Will teeth whitening damage my enamel?

When applied under the supervision of a dental professional or by their direction, teeth whitening treatments should not damage your enamel.

However, if used excessively or incorrectly, teeth whitening agents can be damaging to your enamel, so always follow your dentist's instructions when using your at-home teeth whitening trays. If you have any questions, please contact your dentist.

To learn more about tooth enamel and teeth whitening treatments, contact our dentists at Toothworks The Boardwalk Dental today for a consultation! Or find a Toothworks location near you.

Shaping the Smiles of Tomorrow

Since 2001, Toothworks Dental Clinics have been providing patients of all ages with personalized dental care and a welcoming experience at locations across Ontario.

Learn More