February 02, 2009

Molars and teeth can grow again with mother cells

Teeth and molars would be able to be regenerated in a matter of five or ten years, indicates the Washington Post.  

In theory, it would be possible to remove a damaged tooth from your mouth and reconstruct it out from the mother cells within it and transplant it again in your mouth, which means a much better and compatible alternative to replace missing teeth than metallic dental implants used nowadays.

Titanium dental implants are prone to get loose and produce infections as gingivitis and periodontitis due to the incompatibility between the bone and the dental implant.

This new treatments means great news for patients who can not be candidates –they have not enough bone in their jaws to support titanium screws - for regular dental implant surgery or anyone who prefers dental implants derived from his own natural teeth and molars.

This naturally leads us to think about our milk teeth and wisdom molars, they are just the perfect pieces for dental regeneration (means the days of our good old friend the tooth fairy will come to an end?).

In these days of recycling, we see something like this happening other formerly considered waste materials like newborn umbilical cords, since new therapeutic uses are discovered for mother cells contained in the blood of umbilical cords. 

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January 11, 2007

Tooth extraction. Part I

Body parts envolved
 Teeth

 Gums
 Jaw bones

Reasons for a dental extraction
Although many teeth can be saved with modern dental techniques, some still have to be extracted. Teeth extractions can de necessary in these situations:

- Teeth is too damaged or with cavities to be saved by endodontia.
- The tooth’s nerve is infected.
- The tooth is preventing the normal dental growth.
- The tooth is loose because of a periodontal disease.
- Loss of support bone, gums or tissues

Risk factors due to complications during the procedure
- Smoking
- Blood or heart disease.
- High blood pressure
- Alcoholism
- Bad nutrition
- Use of medication without medical prescription (tell your dentist of any medication or supplement you have been taking in the last month).

What to expect

Before the procedure
- Mouth radiography
- Blood and urine test

During the procedure
General or local anestesia

The procedure
If the tooth is damaged, the dentist will remove the gum and the bone tissues to unveil the tooth. Using forceps, the dentist will hold the tooth and will make it twist smoothly forwards and backwards. This action releases the tooth of the alveolar bone and breaks the ligaments that attach the tooth on its place. The tooth is pulled off, and a blood clot is formed in the empty space. The dentist will put a dressing on it, and occasionally he/she will make some stitches on the gum borders.

After the procedure
It is analyzed the extirpated tissues, bone and blood.

How much it lasts?
Around 20 minutes. More time for damaged teeth.

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