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Dens Invaginatus
Dens Invaginatus can occur in deciduous or in permanent teeth. The coronal portion of the tooth folds inward and typically becomes non-vital. The condition is also called "dens in dente" or a tooth within a tooth. Non-vital teeth need to be treated by dental extraction or by root canal therapy.
Dale Kressin DVM, FAVD, DAVDC in Oshkosh, Green Bay, Greenfield, Glendale, WI @ Animal Dentistry and Oral Surgery Specialists, LLC provides these services!
Clinical cases

Purulent discharge ("puss") was observed above this abnormal canine tooth.
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Dental radiograph of the tooth.
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Mucogingival flap exposed the abnormal tooth.
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Alternate view.
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The coronal portion was not attached to the root.
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A hypodermic needle was use to locate the underlying root structure.
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Dental radiograph demonstrate the orientation of the root.
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A dental elevator was used to demonstrate the proximity of the premolar root to the anamalous tooth root.
The adjacent premolar teeth were extracted to allow access to the anamalous root.
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A keyhole approach through the maxilla allowed access to the anamalous root.
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Further exposure.
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The anamalous root was supported by sterile gauze sponges to avoid pushing the root into the respiratory tract.
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Anamalous root extracted.
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Dental radiograph confirmed complete dental extraction.
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Alternate view.
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Tooth submitted to a pathologist for histology (tissue evaluation). Histology confirmed the presumptive diagnosis of Dens en dente.
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Surgical defect closed in two layers.
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Abnormal or anamalous teeth
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