Comparison of anterior and posterior trabecular bone microstructure of human mandible using cone-beam CT and micro CT

Ibrahim, Norliza and Parsa, Azin and Hassan, Bassam and van der Stelt, Paul and Rahmat, Rabiah A. and Ismail, Siti M. and Aartman, Irene H. A. (2021) Comparison of anterior and posterior trabecular bone microstructure of human mandible using cone-beam CT and micro CT. BMC Oral Health, 21 (1). ISSN 1472-6831, DOI

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Background: The aim of this study was to compare the trabecular bone microstructures of anterior and posterior edentulous regions of human mandible using cone-beam computed tomography (CBCT) and micro computed tomography (mu CT). Methods: Twenty volumes of interests consisting of six anterior and fourteen posterior edentulous regions were obtained from human mandibular cadavers. A CBCT system with a resolution of 80 mu m (3D Accuitomo 170, J. Morita, Kyoto, Japan) and a mu CT system with a resolution of 35 mu m (SkyScan 1173, Kontich, Belgium) were used to scan the mandibles. Three structural parameters namely, trabecular number (Tb.N), trabecular thickness (Tb.Th), and trabecular separation (Tb.Sp) were analysed using CTAn software (v 1.11, SkyScan, Kontich, Belgium). For each system, the measurements obtained from anterior and posterior regions were tested using independent sample t-test. Subsequently, all measurements between systems were tested using paired t-test. Results: In CBCT, all parameters of the anterior and posterior mandible showed no significant differences (p > 0.05). However, mu CT showed a significant different of Tb.Th (p = 0.023) between anterior and posterior region. Regardless of regions, the measurements obtained using both imaging systems were significantly different (p <= 0.021) for Tb.Th and Tb.N. Conclusions: The current study demonstrated that only the variation of Tb.Th between anterior and posterior edentulous region of mandible can be detected using mu CT. In addition, CBCT is less feasible than mu CT in assessing trabecular bone microstructures at both regions.

Item Type: Article
Uncontrolled Keywords: Dental Implant Sites; Computed-Tomography; Alveolar Bone; Trabecular bone microstructures
Subjects: R Medicine > RK Dentistry
Divisions: Faculty of Dentistry
Depositing User: Ms Zaharah Ramly
Date Deposited: 14 Mar 2022 03:15
Last Modified: 14 Mar 2022 03:15

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