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Validation of Microfocus Computed Tomography in the Evaluation of Bone Implant Specimens
Author(s) -
Stoppie Nele,
Waerden JanPaul,
Jansen John A.,
Duyck Joke,
Wevers Martine,
Naert Ignace E.
Publication year - 2005
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/j.1708-8208.2005.tb00051.x
Subject(s) - computed tomography , implant , medicine , dentistry , tomography , nuclear medicine , radiology , surgery
Background: Microfocus computed tomography (μCT) is an emerging technique owing to its speed, full three‐dimensional information, and nondestructive properties. Purpose: The aim of this study was to explore the efficacy of a μCT system (Philips HOMX 161™, Philips Medical Systems GmbH, Hamburg, Germany) for visualization of the bone structure around screw‐type titanium implants by comparing μCT images with their histologic homologues. Materials and Methods: Eight screw‐type titanium implants were placed in the femoral condyles of two goats. After the excised implant‐bone specimens were embedded in resin, three‐dimensional μCT of the excised implant and bone specimens was performed. Histologic sections were subsequently made. A total of 150 histologic sections were matched with μCT images. Results: Bone trabeculae were clearly visible on the μCT scans. However, bone close to the implant or present in the apical surface features of the implant could not be detected. The overall matching between μCT scans (slices) and the histologic sections was 89%. Conclusion: Investigation of trabecular bone around titanium implants by μCT can be considered highly reliable for determining trabecular bone parameters, with the exception of measuring direct bone‐to‐implant contact.