Wisdom Teeth

Wednesday, December 28, 2011

Wisdom Teeth

Removal of wisdom tooth

Why do we remove wisdom teeth?

Wisdom tooth, as commonly known, is actually the third molar tooth. For most of us wisdom teeth are the last teeth in the mouth, usually erupted during the late teens or early 20's. For most of us wisdom teeth are either fully erupted, partially erupted or do not erupt at all.

It is common to have some discomfort during eruption of wisdom teeth, epecially the lowers. The most common complaint is pain and swelling. This is normally followed by fever, difficulties in mouth opening, and of course eating. These will normally subside after a few days, however some will require a visit to the dentist or Oral Surgeons for cleaning and a course of antibiotics and painkillers.

Subsequently the teeth might require removal. Since most of wisdom teeth, mainly the lower, are impacted, removal means a minor oral surgical procedure.

The reasons why wisdom teeth have to be removed:
1) recurrent gum infection (pericoronitis)
2) decay (caries)
3) decay of the adjacent teeth
4) cyst developing around the unerupted teeth
5) other reasons deemed removal necessary (during consultation with Oral Surgeon)

Example:

Close-up photo of infected gums around a partially-erupted third molar tooth





Untreated infection spreading to the cheek and neck





X-ray showing a carious wisdom tooth, and the second adjacent molar





Impacted third molar causing decay in the adjacent tooth





Cyst associated with the unerupted third molar





What is third molar surgery
Prior to the surgery, it is very important to have an OPG x-rays taken for a thorough assessment of the anatomy, i.e the shape of the tooth, and the nerve around it.
Third molar surgery is the most common oral surgical procedure performed. This is because most of third molar teeth are partially and unerupted, making it impossible to extract it normally.

As the complexity involved and potential risk, the procedure is better carried out by a qualified Oral and Maxillofacial Surgeon. Majority of surgery is carried out under a local anaesthesia, i.e with 'injections" to numb up the area. Only a small number of cases have to be done under a general anaesthesia due to the difficulties involved.

Prior to the surgery, you can eat / drink as normal.




This is how the surgery is carried out. After the tooth is removed, a few sutures will be applied to the surgical area. This will be removed in a few days. During the healing period, you will be given medications for pain relief.


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