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Teeth may be lost through dental diseases, trauma or be congenitally absent. Missing teeth and supporting oral tissues have traditionally been replaced with removable dentures or fixed partial dentures permitting restoration of masticatory, phonetic, function, and aesthetics…
The achievement of osseointegration between the device and the surrounding tissues is an index of a successful implant.
The ideal dental prosthesis would be a replacement system that looks and functions like natural teeth, is durable, does not damage existing structures, and doesn't cause unwanted side effects. Many dentists are optimistic that the latest generation of implant technology fulfills these goals. The basis of an implant is a titanium metal screw that is surgically inserted into the alveolar bone of the upper or lower jaw in a spot where the natural tool h has fallen out or been extracted. The screw, which provides the anchor for replacement teeth, acts as a substitute for a natural tooth root. A dentist can place implants alone or in combination. They can serve as abutments for individual replacement teeth or fixed bridges, or as anchors for full or partial removable dentures. (Dental Implant Information, 2006)
Implants are categorized as endosteal (implants within the bone), subperiosteal (framework placed on bone), or transosteal (implants placed through the bone from the superior to the inferior aspect). The endosteal is the most commonly used at this time and can be either root-, blade-, or plate-form. ...
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