Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2008 Feb;105(2):231-8.
doi: 10.1016/j.tripleo.2007.08.007.

Assessments of trabecular bone density at implant sites on CT images

Rubelisa Cândido Gomes de Oliveira  1 , Cláudio Rodrigues Leles, Leonardo Martins Normanha, Christina Lindh, Rejane Faria Ribeiro-Rotta
Affiliations

Assessments of trabecular bone density at implant sites on CT images

Rubelisa Cândido Gomes de Oliveira et al. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Feb.

Abstract

Objectives: To evaluate the association between trabecular bone density measurements of potential implant sites made on axial DICOM images (DentaCT software) and on the same images with eFilm workstation, to correlate bone densities in Hounsfield units (HU) with subjective classification, and to establish a quantitative scale for each bone quality class.

Study design: Twenty-seven maxillary and 27 mandibular computed tomographic (CT) examinations of 75 potential implant sites were selected. Trabecular bone density was evaluated with DentaCT and eFilm. Bone quality was subjectively evaluated by 2 examiners. Descriptive statistics, between- and within-group comparison, correlation analysis, and Bland-Altman plot were used for data analysis.

Results: DentaCT measurements were higher than eFilm (P < .001). Bone type 2 was the most prevalent, and bone density was significantly reduced from bone types 1 to 4. Quantitative parameters ranged as follows: bone type 4 <200 HU, bone types 2 and 3 >200 to <400 HU, and bone type 1 >400 HU.

Conclusion: Different qualities of bone can be found in any of the anatomical regions studied (anterior and posterior sites of maxilla and mandible), which confirms the importance of a site-specific bone tissue evaluation prior to implant installation.

PubMed Disclaimer

Publication types