Bilateral subpontic osseous hyperplasia. A case report.
A case of osseous hyperplasia under the pontics of fixed partial dentures in right and left mandibular first molar regions is presented. Radiographs showed hemispherical radio-opacities on the alveolar ridges. Histologic examination revealed the lesions were composed of a dense mass of mature bone with well-developed lamellae and haversian systems, viable osteocytes in lacunae and a few marrow spaces filled with loose fibrous connective tissue. The review of the literature showed osseous hyperplasia under the pontic of a fixed partial denture has been seen only in the mandibular molar or premolar regions, but no conclusion about its etiology was made.
Takeda
Y
Y
Department of Oral Pathology, School of Dentistry, Iwate Medical University, Japan.
Itagaki
M
M
Ishibashi
K
K
D000328:Adult; D001862:Bone Resorption / Q000209:etiology* / Q000473:pathology; D003830:Denture, Partial, Fixed / Q000009:adverse effects*; D005260:Female; D006801:Humans; D006965:Hyperplasia; D008334:Mandible / Q000473:pathology*; D008336:Mandibular Diseases / Q000209:etiology* / Q000473:pathology