10 Important Facts about Wisdom Teeth

Monday, 20 March 2017 17:26

1. The third molar or the wisdom tooth is one of the last teeth to come out between the age of 17 and 25. It has to integrate in the space left and if some people have small jaws, the space won’t be enough and the teeth won’t be able to come out.

2. Statistically, 20-25% of the population doesn’t have this tooth anymore; it is considered that in the future we will have less teeth, smaller jaws and the wisdom teeth will totally disappear. Starting with 8 or 10 years old, it can be seen on x-rays if these teeth will exist or not.

3. Among the reasons why wisdom teeth don’t succeed to erupt are certain genetic diseases, but also Rachiotis, the lack of vitamin C and D, or thyroid deficiencies.

4. The impacted wisdom teeth have different positions, that is the reason why their extraction cannot be generalized. The doctor is the one who decides, after a check-up and after the examination of x-rays, what the best treatment is.

5.Keping impacted and semi-impacted wisdom teeth can have the following consequences:

  • local inflammation (pericoronitis)
  • caries on the tooth next to it, the displacement of the teeth next to the wisdom ones
  • the resorption of the roots of the neighbouring teeth
  • gum disease because of difficult access and lack of proper cleaning
  • nervous complications (transitory face paralysis, tooth/ear pain, lip spasm, sialorrhea – excessive saliva secretion)
  • cists, jaw fractures due to decrease in bone resistance.

6. An odontectomy is necessary in the following cases (the extraction of impacted and semi-impacted wisdom teeth – which means they are not erupted or partially erupted):

  • the tooth has a cavity (it is really difficult to treat because of the bad positioning and it causes repeated pericoronitis episodes)
  • the tooth is semi-impacted and food remains together with bacteria produce local inflammation which causes halitosis (bad breath syndrome), pain, tumefaction and trismus (limitation in mouth opening)
  • in case of severe infection, purulence, cists or because of orthodontic necessity; wisdom teeth can affect the orthodontic treatment and that is why they are usually extracted before or during this treatment
    when it doesn’t have enough space to erupt
  • when it erupts in an abnormal position producing damage to the neighbouring tissues.

7. Even if they haven’t produced any pain or trouble yet, impacted wisdom teeth discovered accidentally (on x-rays) can lead to such problems and that is why we usually take them out. Also, removing the wisdom teeth as a prophylactics method is done when there is no chance of eruption , due to the lack of space or to the wrong growth axis.

8. Odontectomy is done under local anaesthesia, which means that the pacient doesn’t feel any pain. After the surgery, there si minimum discomfort, provided that the patient follows the doctor’s orders and takes the proper medicine. With a good expertise and modern technology, complications are rare.

9. For the evaluation of the need to extract a wisdom tooth and to be able to guide the surgical steps, it is necessary to have an x-ray or a CBCT.

These will show:

  • if it is really necessary to extract the teeth
  • the way the teeth are placed
  • the position and direction of the root
  • the shape of the crown and roots
  • the relationship between the tooth and the neighbouring anatomic areas
  • the presence or absence of associated lesions.

10. Last but not least, considering that the holidays are coming, if you are planning a trip to far-away destinations where dental services might not be really easy to access, it is recommended to see a dentist before and to solve problems which might become acute (such as a latent wisdom tooth which decides to create trouble).

Bad positions of wisdom teeth

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