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Wisdom Tooth

Quick Guides: Wisdom Tooth

  • The Wisdom of Knowing Your Wisdom Tooth Facts

    If getting your wisdom teeth is the key to knowledge,most people would rather do without.Wisdom teeth are highly problematic molars that most...

  • Dental Disorders

    Dental disorders are a very wide range of afflictions that occur in a patients mouth, teeth, and gums. From gingivitis to canker sores there are...

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  • Wisdom tooth

    A wisdom tooth is in humans any of the usually four third molars, including mandibular third molar and maxillary third molar. Wisdom teeth usually appear between the ages of 17 and 25."aaoms"> Most adults have four wisdom teeth, but it is possible to have more—in which case they are called supernumerary teeth—or fewer—a condition called hypodontia. Wisdom teeth commonly affect other teeth as they develop, becoming impacted or "coming in sideways"."umanitoba">, hosted on the University of Manitoba: School of Dental Hygiene website. Page accessed January 17, 2007. They are often extracted when this occurs.

    Impaction

    Impacted wisdom teeth fall into one of several categories. Mesioangular impaction is the most common form (44%), and means the tooth is angled forward, towards the front of the mouth. Vertical impaction (38%) occurs when the formed tooth does not erupt fully through the gum line. Distoangular impaction (6%) means the tooth is angled backward, towards the rear of the mouth. And finally, Horizontal impaction (3%) is the least common form, which occurs when the tooth is angled fully ninety degrees sideways, growing into the roots of the second molar.

    Typically distoangular impactions are the easiest to extract in the maxilla and most difficult to extract in the mandible, while mesioangular impactions are the most difficult to extract in the maxilla and easiest to extract in the mandible. Frequently, a fully erupted upper wisdom tooth requires bone removal if the tooth does not yield easily to forceps or elevators. Failure to remove distal or buccal bone while removing one of these teeth can cause the entire maxillary tuberosity to be fractured off and thereby the tearing out the floor of the maxillary sinus.

    Impacted wisdom teeth may also be categorized on whether they are still completely encased in the jawbone. If it is completely encased in the jawbone, it is a bony impaction. If the wisdom tooth has erupted out of the jawbon read more at » http://en.wikipedia.org/wiki/Wisdom+tooth

    http://en.wikipedia.org/wiki/Wisdom+tooth

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