下顎エナメル上皮腫に反復処置法を適応し，腫瘍による歯根吸収を伴う歯を無治療で温存した１例

ameloblastoma

北海道歯学会

北海道歯学雑誌

The dredging method has shown excellent results in treating benign tumors or cysts, restoring the morphology of the jawbone, and preserving oral function. Benign jawbone tumors are often associated with root resorption of the involved teeth. To avoid recurrence, the teeth involved in the lesion are usually extracted, or even if the tooth can be saved, endodontic treatment or apicoectomy is performed because of the high probability of pulp necrosis. We report a case in which a tooth with a resorbed root due to a tumor was successfully preserved without treatment after applying the dredging method to a mandibular ameloblastoma. 　A 19-year-old woman presented to our department with a complaint of swelling and mild dull pain in the right mandibular region. Panoramic radiographs and computed tomography revealed a well-defined multilocular radiolucent lesion in the ascending ramus of the mandible with the root resorptions of the mandibular first and second molars. A biopsy was performed, and a histopathological analysis led to t he diagnosis of ameloblastoma. The patient was treated with the dredging method. The involved molars were preserved wi thout treatments. Nine years after the initial treatment, the mandibular first and second molars responded normally to the electric pulp test. No recurrence or complications were observed during a 10-year follow-up period, and the teeth were preserved and functional in their place.