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  Dr Minh Nguyen
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mandibular tori
Mandibular Tori
torus palatinus
Maxillary Tori

What are tori, torus, or exostosis

An exostoses is just a general thickening of bone. A torus (tori-plural) is a non-pathological outgrowth of bone. Some believe these exostoses are genetically linked. We believe they are genetically linked only in that the personalities of the parents could be inherited. We also believe that the personality of an individual can be the result of being in the same environmental situation as the parents.

We hypothesize that tori are the result of one of bone’s responses to stresses on the teeth. An individual transmits his/her stresses to the teeth in the form of clenching or squeezing of the teeth together (one directional force) and bruxing or mashing of the teeth together (lateral motions put on the teeth). We believe tori are the result of just one of the various responses the body has to stress. The bone gets stimulated by the vibrations or ionization within the bone to lay down more bone. It is the body’s response to try to prevent the rocking of the teeth by laying down more bone to help stabilize or support the teeth. Other responses to this force could be to flatten, chip, break and loosen teeth or cause sensitivity. It could also cause recession of bone and tissue.

We think that anthropologist will not find the size or numbers of tori in prehistoric skulls when compared to tori found in the present population. Tori are fairly common in our population today and can usually be seen weekly, if not daily, in any dental practice in the USA today.

Torus can appear in three forms:

  • torus palatinus,
  • mandibular torus, and
  • buccal exostosis.
The torus palatinus appears in the midline of the hard palate, or the roof of your mouth. The mandibuluar torus appears on the lingual surface of the mandible—that is, the portion of the lower jaw facing the tongue. The buccal exostosis appears on the facial surface of the alveolar bone—the outward-facing side of the bone that forms the tooth sockets surrounding the teeth. Tori found anywhere else in the mouth are usually diagnosed as one of two conditions: an osteoma, a slowly growing benign tumor made of bone tissue, or an exostosis, a trauma-induced overgrowth of bone tissue. The bone proliferation must be specifically located in order to qualify as a torus. It is difficult to differentiate an exostosis from an osteoma unless the bony proliferation is associated with an osteoma-producing syndrome.


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