Human Bone Typing Using Quantitative Cone-Beam Computed Tomography
| Autor: | Hairong Huang, Dong Chen, Kurt Lippuner, Ernst B. Hunziker |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | International Dental Journal, Vol 73, Iss 2, Pp 259-266 (2023) |
| Druh dokumentu: | article |
| ISSN: | 0020-6539 30043395 |
| DOI: | 10.1016/j.identj.2022.08.011 |
| Popis: | Introduction: Bone typing is crucial to enable the choice of a suitable implant, the surgical technique, and the evaluation of the clinical outcome. Currently, bone typing is assessed subjectively by the surgeon. Objective: The aim of this study is to establish an automatic quantification method to determine local bone types by the use of cone-beam computed tomography (CBCT) for an observer-independent approach. Methods: Six adult human cadaver skulls were used. The 4 generally used bone types in dental implantology and orthodontics were identified, and specific Hounsfield unit (HU) ranges (grey-scale values) were assigned to each bone type for identification by quantitative CBCT (qCBCT). The selected scanned planes were labelled by nonradiolucent markers for reidentification in the backup/cross-check evaluation methods. The selected planes were then physically removed as thick bone tissue sections for in vitro correlation measurements by qCBCT, quantitative micro–computed tomography (micro-CT), and quantitative histomorphometry. Results: Correlation analyses between the different bone tissue quantification methods to identify bone types based on numerical ranges of HU values revealed that the Pearson correlation coefficient of qCBCT with micro-CT and quantitative histomorphometry was R = 0.9 (P = .001) for all 4 bone types . Conclusions: We found that qCBCT can reproducibly and objectively assess human bone types at implant sites. |
| Databáze: | Directory of Open Access Journals |
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