Synchrotron radiation μCT and histology evaluation of bone-to-implant contact

Camilla Albeck Neldam, Jon Sporring, Alexander Rack, Torsten Lauridsen, Ellen Margrethe Hauge, Henrik L Jørgensen, Niklas Rye Jørgensen, Robert Feidenhansl, Else Marie Pinholt

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstract

The purpose of this study was to evaluate bone-to-implant contact (BIC) in two-dimensional (2D) histology compared to high-resolution three-dimensional (3D) synchrotron radiation micro computed tomography (SR micro-CT). High spatial resolution, excellent signal-to-noise ratio, and contrast establish SR micro-CT as the leading imaging modality for hard X-ray microtomography. Using SR micro-CT at voxel size 5 μm in an experimental goat mandible model, no statistically significant difference was found between the different treatment modalities nor between recipient and reconstructed bone. The histological evaluation showed a statistically significant difference between BIC in reconstructed and recipient bone (p < 0.0001). Further, no statistically significant difference was found between the different treatment modalities which we found was due to large variation and subsequently due to low power. Comparing histology and SR micro-CT evaluation a bias of 5.2% was found in reconstructed area, and 15.3% in recipient bone. We conclude that for evaluation of BIC with histology and SR micro-CT, SR micro-CT cannot be proven more precise than histology for evaluation of BIC, however, with this SR micro-CT method, one histologic bone section is comparable to the 3D evaluation. Further, the two methods complement each other with knowledge on BIC in 2D and 3D.

OriginalsprogEngelsk
TidsskriftJournal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery
Vol/bind45
Udgave nummer9
Sider (fra-til)1448-1457
ISSN1010-5182
DOI
StatusUdgivet - 2017

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