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<p>Extraction site preservation<br>Lieutenant Commander Nadji M. Hariri, DC, USN and Captain David Glynn, DC, USN<br><br>Introduction<br>Teeth that have hopeless prognoses as a result of periodontal disease, fractured roots, etc. should be extracted as soon as a definitive diagnosis and treatment plan has been established. The prolonged retention of hopeless teeth will result in unnecessary loss of supporting bone and eventual creation of a deformity in the alveolar ridge. These deformities can present as esthetic and functional obstacles for future restorative treatment. As a result of appropriate treatment planning however, many of these problems can be prevented or minimized at the time of extraction.<br><br>Ridge preservation techniques can be employed to preserve and augment the original dimensions of the edentulous ridge reducing the risk of a post-operative alveolar insufficiency. These techniques use the principals of Guided Tissue Regeneration (GTR) to accomplish this goal.
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<br>Subjects: Guided Tissue Regeneration ;  Mouth; Edentulous ;  Periodontal Diseases</div>
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U.S. Navy. Naval Postgraduate Dental School</div>
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