1. Teeth Whitening
  2. Unveiling the Sparkle: The Science Behind Teeth Whitening

Unveiling the Sparkle: The Science Behind Teeth Whitening


A bright, inviting smile can be a big boost to your self-esteem and confidence.

Among the several cosmetic dental procedures available today, teeth whitening has found a significant place, owing to its ability to enhance the aesthetic appeal of one’s smile in a relatively simple manner.

In this article, we’ll delve into the scientific realm of teeth whitening, aiming to explain further how this popular procedure works, its safety, and what one can expect from it.

The Anatomy of Tooth Discolouration

A tooth primarily comprises of enamel, the hard outer surface, and dentine, the underlying material. The colour of our teeth is greatly influenced by the reflection and scattering of light off the enamel, combined with the colour of the dentine beneath it. Discolouration occurs due to several factors, like the consumption of staining agents (coffee, tea, and tobacco), aging, or certain medications. Stains on teeth are categorised into two types: extrinsic, which affect the outer layer of the teeth, and intrinsic, which are present within the tooth.

The Chemistry of Teeth Whitening

Teeth whitening procedures predominantly use two bleaching agents: hydrogen peroxide and carbamide peroxide. These agents penetrate the porous enamel and reach the dentine, breaking down the stains into smaller molecules, making them less concentrated and, hence, less visible. Some procedures use catalysts like light or heat to accelerate the oxidation process, thus hastening the whitening effect.

Professional Teeth Whitening Procedures

In-office teeth whitening procedures are heralded for their efficacy and safety. Our whitening treatments at Perth City Dental are conducted under the vigilant eyes of dental professionals, often providing immediate and significant results. Treatment plans are customised to meet individual needs, ensuring that the whitening process is both safe and effective.

Our professional in-office teeth whitening treatments involve a tooth whitening gel being placed safely on your teeth and activating that gel with a UV light to speed up the process of breaking down stains.

At-Home Teeth Whitening Options

The market is flooded with over-the-counter teeth whitening products like strips, gels, and toothpaste. These products are convenient but often take longer to show results than in-office procedures. Adhering to the instructions is crucial to ensure both the effectiveness and safety of at-home teeth whitening kits.

At Perth City Dental, we offer at-home teeth whitening treatments in addition to our in-office teeth whitening treatment. This is particularly more convenient for those who would prefer to do their treatments in the comfort of their own home. Our at-home whitening treatments provide you with a take-home kit that comes with custom whitening trays and a gel.

The Safety and Longevity of Teeth Whitening

Whilst getting your teeth whitened is safe, some individuals may experience side effects like sensitive teeth and gum irritation. The longevity of the whitening effect can vary, but with proper care and maintenance, it can last for several years.

Final Words

Teeth whitening is more than just a cosmetic procedure; it’s a gateway to renewed self-confidence and a radiant smile. Understanding the science behind it can empower individuals to make informed decisions regarding their dental health. Consulting with a dental professional can provide insight into the most suitable whitening options, tailor-made to individual needs and preferences.

Ready to unveil a brighter smile?

If you’re looking for in-chair teeth whitening or a take-home tooth whitening treatment, contact us at Perth City Dental. Get in touch today for a consultation at our clinic to explore the various teeth whitening options available and take a step towards a radiant, self-assured smile.