Cavan has gone whitening crazy this last few months since we halved our Zoom price. Whitening your teeth has never been more accessible or reasonably priced. Before considering whitening your teeth, book an appointment for a check-up and cleaning with your dentist. Surface stains will need to be removed before whitening to achieve optimum results. Your dentist will then determine if you are a candidate for tooth whitening.
Are You a Candidate for Tooth Whitening?
Not everyone can use tooth whitening solution. Circumstances that may prevent the use of tooth whitening product are:
- Teeth that which have been bonded white fillings, veneers or crowns, cannot be whitened with whitening gels.These materials do not whiten past the color they were originally made. The color of these types of restorations were determined by the surrounding teeth. If the surrounding teeth are whitened, the restorations will stand out and look artificial.
- Teeth that have internal staining, discoloration from developmental conditions or have been root treated may not be affected by the typical whitening process. Internal tooth whitening or permanent restorations may be an option to consider.
- Natural tooth colors that are brown or gray in hue may not produce desired results. Typically, teeth with a yellow hue will produce the best results.
- Pregnant or nursing mothers should avoid whitening their teeth as there is not enough research to determine the safety of tooth whitening products during pregnancy or lactation.
- People with hyper sensitive teeth should avoid tooth whitening, because this process may enhance the level of sensitivity they experience.
How Are Teeth Whitened?
Enamel, first layer of tooth surface, is actually semi-translucent, or clear. The layer underneath the enamel, known as dentine is typically yellow, but may be gray, brown or black. This hue is what is seen penetrating through the enamel, In order to whiten the dentin, a peroxide solution is placed on the enamel. This process opens the pores of the enamel, allowing the solution to reach the layer of dentin. The solution will then begin to lighten the dentin, resulting in the appearance of whiter teeth.
Is Teeth Whitening Safe?
I frequently get questions about teeth whitening and safety. Teeth whitening done correctly is safe, and it does not work by stripping enamel from your teeth!
Many people may have gotten the wrong idea because of how older whitening formulas used to work. Remember “Pearl Drops” for smokers? It used harsh abrasives that literally scoured away the stains and took off a little enamel in the bargain! Abrasives are the enemy, but teeth whitening works with chemical agents, not abrasives. These whitening (or bleaching) agents actually react with the stain deep inside your teeth to neutralize it. There’s no harmful stripping of enamel.
View your teeth under a microscope and the surface will look something like a honeycomb. Thousands of tiny tubes (called “enamel rods”) are lined up side by side forming the enamel, and beneath them “dentin tubules” form the tooth’s inner layer. Over time, the stains on the tooth’s surface work their way through this system of tubes and become trapped within the honeycomb structure. The stain is now part of your tooth. We dentists call this “intrinsic stain”. It can’t be brushed away, no matter how hard you try.
Now, it takes a lot of time for intrinsic stain to form because the tubes in the “honeycomb” tend to be “plugged up” with organic matter. If they were wide open, your teeth would be terribly sensitive to temperature changes, especially cold. In order to work, bleaching agents need to remove the plugs so they can penetrate to the inner layer of your teeth, where they work their magic. The active ingredient loses effectiveness quickly, so no need to worry that you’re trapping harmful chemicals inside. After some time (usually a couple of weeks), the plugs return. This explains why it’s common for teeth to become sensitive during and after the teeth whitening process, and why the effect subsides.
The bottom line is that for the vast majority of us, teeth whitening is a perfectly safe and harmless beauty treatment that almost anyone can afford.








I recieved such a welcome from the children at Kill National School when I arrived to give a talk about oral health. What a well behaved classroom, Mrs Mc Nally should be proud! I did a little power point presentation on plaque and how tooth decay develops. The kids were all questions and the talk was really interactive and great fun! Thanks to David our friendly colgate rep who supplied us with toothbrushes and toothpastes. I have heard on the grapevine that the children in Kill are still brushing like mad and timing themselves! The kids made a fab card for me which is in proud display on the practice noticeboard.



