8.3.24

Quick Review #195 - #pathology #oralpathology #doctorgallagher #oralsurgery #oralsurgeon #dentist #dentistry #dental #bonyisland #idiopathicosteosclerosis

A dense bony island is an area of sclerotic (increased density) bone that is usually asymptomatic and does not have an associated radiolucent border. These areas are typically considered benign and are often idiopathic, meaning their exact cause is unknown.

Radiographic Characteristics:

• Appearance: On radiographs, dense bony islands appear as well-defined, radiopaque (white) areas within the jawbone. They can vary in size but are typically less than 2 cm in diameter.

• Borders: The borders of a bony island are well-defined but blend smoothly into the surrounding normal bone without a distinct margin or halo.

• Location: They can occur in both the maxilla and mandible but are more commonly found in the posterior mandible, particularly in the premolar-molar region.

• Effect on Surrounding Structures: Dense bony islands do not cause root resorption or displacement of teeth. They also do not expand the cortex of the bone or invade the surrounding soft tissues.

Clinical Characteristics:

• Symptoms: Dense bony islands are typically asymptomatic and are usually discovered incidentally on radiographs taken for other reasons.

• Growth: These lesions are generally stable and do not exhibit significant growth over time. They remain unchanged on subsequent radiographs, confirming their benign nature.

• Associated Conditions: There is usually no associated clinical condition or syndrome. However, it is important to differentiate them from other radiopaque lesions, such as cemento-osseous dysplasia, hypercementosis, or odontomas, which may have clinical significance.

Differential Diagnosis: When identifying a dense bony island, it is essential to differentiate it from other radiopaque lesions such as:

• Cementoblastoma: Typically associated with the root of a tooth and may cause pain or expansion.

• Condensing Osteitis: Associated with an inflammatory process, often near the apex of a tooth with a history of infection or inflammation.

Management:

Dense bony islands usually do not require any treatment, as they are benign and asymptomatic. Regular monitoring through periodic radiographs may be recommended.

References:

1. Wang, S., Xu, L., Cai, C., Liu, Z., Zhang, L., Wang, C., & Xu, J. (2022). Longitudinal investigation of idiopathic osteosclerosis lesions of the jaws in a group of Chinese orthodontically-treated patients using digital panoramic radiography. Journal of Dental Sciences, 17(1), 113-121.

2. Neville, B. W., Damm, D. D., Allen, C. M., & Chi, A. C. (2016). Oral and Maxillofacial Pathology (4th ed.). Elsevier.

3. White, S. C., & Pharoah, M. J. (2018). Oral Radiology: Principles and Interpretation (8th ed.). Elsevier.

4. Langlais, R. P., & Langland, O. E. (2017). Diagnostic Imaging of the Jaws (2nd ed.). Wiley-Blackwell.

5. ChatGPT.2024

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