How can you brighten your smile?
Your wedding is coming up and you want your smile to be its brightest. Or maybe you have an important speaking engagement. Whatever the reason, tooth bleaching isn't just for the movie stars, and it isn't just for one day. Many people have had their teeth bleached, and probably millions more are thinking about it.
The desire for a brighter smile and whiter teeth is very strong, and tooth bleaching safely lightens the colour of the teeth, lasting for up to five years.
Is bleaching for you?
Generally, bleaching is successful in at least 90 percent of patients, though it may not be an option for everyone. Consider tooth bleaching if your teeth are darkened from age, coffee, tea or smoking. Teeth darkened with the colour of yellow, brown or orange respond better to lightening. Other types of gray stains caused by fluorosis, smoking or tetracycline are lightened but results are not as dramatic. If you have very sensitive teeth, periodontal disease, or teeth with worn enamel, your dentist may discourage bleaching.
How long does it last?
Lightness should last from one to five years, depending on your personal habits such as smoking and drinking coffee and tea. You may touch it up, so keep your mouthguards, and your only cost will be a refill kit of fresh bleach. The retreatment time is also shorter than the original treatment time.
How does it work?
The active ingredient in most of the whitening agents is 10 percent carbamide peroxide, also known as urea peroxide; when water contacts this white crystal, the release of hydrogen peroxide lightens the teeth. Some newer products have a stabilised hydrogen peroxide, and give faster results. We use quality Colgate products.
Is it safe? Any side effects?
A number of studies have proven bleaching to be safe and effective.
The most common side-effect is increased tooth sensitivity when using the bleach. To help prevent and allay this effect, we also include a Tooth Mousse to prepare the teeth before bleaching, and Sensodyne toothpaste to control the sensitivity when bleaching is underway. Sometimes a mild analgesic like Panadol may help.
Children have larger nerves in their teeth than adults and so bleaching is not recommended for patients less than 18 years old or the sensitivity may be too uncomfortable.
What are realistic expectations?
No one can really predict how much lighter your teeth will become. Every case is different. Typically, there is a two-shade improvement as seen on a dentist's shade guide. The success rate depends upon the type of stain involved and your compliance. Bleaching can only provide a shift of colour from gray to a lighter shade of gray, for example. Bleaching does not lighten artificial materials such as resins or porcelains.