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Quintessence International
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Quintessence Int 31 (2000), No. 1     1. Jan. 2000
Quintessence Int 31 (2000), No. 1  (01.01.2000)

Page 57-61, doi:10.3290/j.qi.a28182


Subpontic osseous hyperplasia: A case report
Lorenzana, Eduardo R. / Hallmon, William W.
Subpontic osseous hyperplasia is an ectopic growth of bone occurring on the edentulous ridge beneath a fixed partial denture replacing a mandibular first molar. A 56-year-old woman experienced an eniargement of the hard and soft tissues beneath the pontic region of a fixed partial denture replacing her mandibular left first molar. Following removal of the fixed partial denture, the bony eniargement was surgically removed, and the bony fragments were submitted for histologic analysis, which demonstrated mature lamellar bone and appositional growth. One year postoperatively, there has been no recurrence of the lesion. The possible etiologies and treatment modalities are reviewed and a rationale for treatment is presented.

Keywords: ectopic growth, fixed partial denture, subpontic osseous hyperplasia