Toothbrush search

When whitening our teeth simply doesn’t work?

4 September 2017

The pearl white smile is trendy nowadays. Unfortunately, as the time goes on and our habits become more destructive for our teeth thanks to drinking lots of coffee and smoking cigarettes, our teeth lose their bright color. That’s why so many people decide to whiten their teeth. There are many methods: we can brighten our smile at home using toothpastes, gels and strips or visit our dentist for some professional whitening. In some cases though, trying to achieve the Hollywood-worthy smile might not give us the results we want. What kind of discolorations cannot be removed effectively?

Discolorations caused by fluorosis

Fluorosis is a disease which causes the white or brown stains to form on our teeth (usually on incisors). This disorder doesn’t result in a cosmetic defect only though, as it’s also very dangerous to the metabolism of our bones, kidneys and the entire nervous system. It occurs when the organism has been subjected to too much fluoride when the enamel was still developing. It could be caused by drinking fluoridated water or taking supplements.

The teeth of those suffering from fluorosis are fragile. They fall victim to cavities easily, can chip easily and look unappealing. Using products with remineralizing properties (containing hydroxyapatite) should become essential in this case, along with following a diet rich in calcium.

Unfortunately, the fluoride stains cannot be removed at home or even by the standard whitening procedures at the dentist’s office. This requires a specialist and mechanical removal of discolorations by using:
microabrasion – this method is being used when discolorations are superficial and small. The specialist removes them mechanically while also making the teeth smoother,
megaabrasion – the method chosen when the stains reach deep into the tooth. It consists of removing the entire discolorated enamel and dentin, filling up the tooth afterwards,
placing composite or porcelain facings – it’s an expensive solution used when fluorosis is too developed for the aforementioned methods.

Discolorations caused by taking antibiotics

Appear when antiobitics from the tetracycline group are taken by the children below the age of 7. They are yellow-gray or brown in color and might appear in different spots around the tooth, as they discolorate the tissue created by the time when antibiotics are being taken. Unfortunately, these discolorations are pretty much impossible to remove. It’s hard to get rid of them using the most popular whitening methods. We can try to go through a couple of laser whitening sessions at the dentist’s office, but it’s not guaranteed to work in every single case. The last resort for the people struggling with this discoloration type is placing facings.

Dead teeth

The tooth which died often changes its color, turns black, red-blue. It’s because its canals are filling up with various substances – blood, or the fragments of filling material. Such teeth may also discolorate with time because their tissues aren’t revitalized.

The dead teeth can be effectively whitened – we should visit the dentist in that case though. They will calculate the risk of internal resorptions and decide whether the tooth can be whitened or not. If the patient will decide to whiten their teeth, the dentist will fill the pulp chamber with a whitening substance and close it. The material used for closing the tooth needs to be replaced every 3 – 7 days, with the whole procedure being repeated a few times. The end results may vary though. That’s why many patients decide to go for a crown or facing instead.

Kategoria : Blog | Tagi: ,