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Quantitative evaluation of bone density using the Hounsfield index.

Tannaz Shapurian1, Petros D Damoulis, Gary M Reiser

  • 1Department of Periodontology, Tufts University School of Dental Medicine, Boston, Massachusetts 02111, USA. tannaz.shapurian@tufts.edu

The International Journal of Oral & Maxillofacial Implants
|April 26, 2006
PubMed
Summary

The Hounsfield scale offers an objective measure of jawbone density for dental implants. Bone density varies by jaw location but is not linked to patient age or gender.

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Area of Science:

  • Dental Implantology
  • Oral Surgery
  • Radiology

Background:

  • Assessing bone quality is crucial for successful dental implant placement.
  • Traditional methods rely on subjective visual classification.

Purpose of the Study:

  • To evaluate bone quality in edentulous jaws using the Hounsfield scale.
  • To correlate bone density with demographic data.
  • To establish an objective assessment of bone quality.

Main Methods:

  • Retrospective analysis of 101 computerized tomographic (CT) scans.
  • Evaluation of edentulous segments (10-30 mm).
  • Correlation of Hounsfield unit (HU) values with visual bone classification and demographics.

Main Results:

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  • Hounsfield unit (HU) values ranged from -240 to 1,159 across jaw quadrants.
  • Anterior mandible showed the highest mean density (559 HU), followed by anterior maxilla (517 HU).
  • No significant association found between bone density and patient age or gender.

Conclusions:

  • Hounsfield scale provides a quantitative, objective measure of bone density.
  • This can aid surgeons in modifying implant techniques and predicting healing times.
  • Objective bone assessment is valuable, especially for suspected poor bone quality.