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Accuracy of trabecular bone microstructural measurement at planned dental implant sites using cone‐beam CT datasets
Author(s) -
Ibrahim Norliza,
Parsa Azin,
Hassan Bassam,
Stelt Paul,
Aartman Irene H.A.,
Wismeijer Daniel
Publication year - 2014
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/clr.12163
Subject(s) - intraclass correlation , cone beam computed tomography , cone beam ct , medicine , trabecular bone , cadaver , nuclear medicine , implant , computed tomography , radiology , anatomy , osteoporosis , pathology , surgery , clinical psychology , psychometrics
Abstract Objective Cone‐beam CT ( CBCT ) images are infrequently utilized for trabecular bone microstructural measurement due to the system's limited resolution. The aim of this study was to determine the accuracy of CBCT for measuring trabecular bone microstructure in comparison with micro CT (μ CT ). Materials and methods Twenty‐four human mandibular cadavers were scanned using a CBCT system (80 μm) and a μ CT system (35 μm). Three bone microstructural parameters trabecular number (Tb.N), thickness (Tb.Th) and separation (Tb.Sp) were assessed using CTA n imaging software. Results Intraclass correlation coefficients ( ICC ) showed a high intra‐observer reliability (≥ 0.996) in all parameters for both systems. The Pearson correlation coefficients between the measurements of the two systems were for Tb.Th 0.82, for Tb.Sp 0.94 and for Tb.N 0.85 (all P 's<0.001). The Bland and Altman plots showed strongest agreement in Tb.N (‐0.37 μm) followed by Tb.Th (1.6μm) and Tb.Sp (8.8μm). Conclusions Cone‐beam CT datasets can be used to evaluate trabecular bone microstructure at dental implant sites. The accuracy for measuring Tb.N was the best followed by Tb.Th and Tb.Sp.