CC BY-NC-ND 4.0 · Eur J Dent 2013; 07(03): 363-367
DOI: 10.4103/1305-7456.115424
Case Report
Dental Investigation Society

Subpontic osseous hyperplasia: Three case reports and literature review

Ulkem Aydin
1   Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Baskent University, Ankara, Turkiye
Derya Yildirim
2   Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkiye
Esin Bozdemir
2   Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkiye
› Author Affiliations
Further Information

Publication History

Publication Date:
26 September 2019 (online)


Subpontic osseous hyperplasia (SOH) is an ectopic growth of bone occurring on the edentulous ridge beneath a fixed partial denture. The aim of this article is to present three patients with SOH with long-term follow-up and to make a current overview of the literature. Presented maxillary SOH is the second case in the dental literature. Intraorally the lesions were bone-hard and painless swellings in the subpontic space. Radiographically, the maxillary case was a nodular bone growth having similar radiodensity and trabeculation to the adjacent bone with a thin radiopaque border. Mandibular cases were bony growths, which were more radiopaque than the adjacent alveolar ridge. Follow-up radiographs revealed regression in two of the cases. Clinicians should take care not to cause the possible etiologies of SOH such as functional stresses and chronic irritation by the prosthetic treatments and be aware of SOH does not usually require treatment or a biopsy.


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