Abstract
Assessing bone quality and quantity at the location of dental implants before dental implantation is crucial. In recent years, dental cone-beam computed tomography (dental CBCT) has often been used to assess bone quality and quantity prior to dental implant. However, the effect of scanning resolution on the prediction of trabecular bone microarchitectural parameters (TBMPs) remains unclear. The objective of this study was to examine how dental CBCT with various scanning resolution differs with regard to predicting TBMPs. This study used micro-computed tomography (micro-CT) with 18 μm resolution and dental CBCT with 100 μm and 150 μm resolutions on 28 fresh bovine vertebrae cancellous bone specimens. Subsequently, all images were input into the ImageJ software to measure four TBMPs: bone volume total volume fraction (BV/TV), trabecular thickness (Tb.Th), trabecular number (Tb.N), and trabecular separation (Tb.Sp). One-way analysis of variance and Tukey’s test were subsequently used to assess the differences between three scanning modes for the four TBMPs. In addition, correlations between measurement results obtained from micro-CT and dental CBCT with two resolutions were measured. The experimental results indicated that significant differences in four TBMPs were observed between micro-CT and dental CBCT (p < 0.05). The correlation coefficients between BV/TV, Tb.N, and Tb.Sp obtained from micro-CT and from dental CBCT with 100 μm resolution (0.840, 0.739, and 0.820, respectively) were greater than the correlation coefficients between BV/TV, Tb.N, and Tb.Sp obtained from micro-CT and from dental CBCT with 150 μm resolution (0.758, 0.367, and 0.724, respectively). The experimental results revealed that the TBMPs measured with dental CBCT with two resolutions differed from ideal values, but a higher resolution could provide more accurate prediction results, particularly for BV/TV, Tb.N, and Tb.Sp.
Highlights
Dental implants are a common method of treatment for missing teeth [1,2]
CBCT with 100 μm resolution (0.840, 0.739, and 0.820, respectively) were greater than the correlation coefficients between bone volume total volume fraction (BV/TV), Tb.N, and Tb.Sp obtained from micro-CT and from dental CBCT with 150 μm resolution (0.758, 0.367, and 0.724, respectively)
trabecular bone microarchitectural parameters (TBMPs) measured with dental CBCT with two resolutions differed from ideal values, but a higher resolution could provide more accurate prediction results, for BV/TV, Tb.N, and Tb.Sp
Summary
Dental implants are a common method of treatment for missing teeth [1,2]. Whether dental implants succeed is substantially influenced by bone quality and quantity at dental implant sites.accurately predicting bone quality and quantity at dental implant sites prior to dental implant surgery is crucial [3,4,5,6]. Dental implants are a common method of treatment for missing teeth [1,2]. Whether dental implants succeed is substantially influenced by bone quality and quantity at dental implant sites. Accurately predicting bone quality and quantity at dental implant sites prior to dental implant surgery is crucial [3,4,5,6]. The jawbone can be divided into the outer cortical bone and inner cancellous bone. The inner cancellous bone is composed of trabecular bones. The gold standard for assessing trabecular bone microarchitectural parameters (TBMPs) is based on images obtained
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