scholarly journals ­­­­­Comparison of Anterior and Posterior Trabecular Bone Microstructure of Human Mandible Using Cone-Beam CT and Micro CT

2020 ◽  
Author(s):  
Norliza Ibrahim ◽  
Azin Parsa ◽  
Bassam Hassan ◽  
Paul der Stelt ◽  
Siti Mazlipah Ismail ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Structural Parameters ◽  
Cone Beam Ct ◽  
Bone Microstructure ◽  
Imaging Systems ◽  
Cone Beam ◽  
Micro Ct ◽  
Trabecular Thickness ◽  
Trabecular Bone Microstructure ◽  
Trabecular Number

Abstract Objective The aim of this study was to compare the trabecular bone microstructures of anterior and posterior edentulous regions of human mandible using cone-beam CT (CBCT) and micro CT (µCT).Materials and 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 µm (3D Accuitomo 170, J. Morita, Kyoto, Japan) and a µCT system with a resolution of 35 µm (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, µCT 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 micro CT. In addition, CBCT is less feasible than micro CT in assessing trabecular bone microstructures at both regions.

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

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Norliza Ibrahim ◽  
Azin Parsa ◽  
Bassam Hassan ◽  
Paul van der Stelt ◽  
Rabiah A. Rahmat ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Trabecular Bone ◽  
Structural Parameters ◽  
Cone Beam Ct ◽  
Imaging Systems ◽  
Cone Beam ◽  
Micro Computed Tomography ◽  
Trabecular Thickness ◽  
Trabecular Bone Microstructure ◽  
Trabecular Number

Abstract 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 (µCT). 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 µm (3D Accuitomo 170, J. Morita, Kyoto, Japan) and a µCT system with a resolution of 35 µm (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, µCT 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 µCT. In addition, CBCT is less feasible than µCT in assessing trabecular bone microstructures at both regions.

scholarly journals Effect of reconstruction parameters on cone beam CT trabecular bone microstructure quantification in sheep

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Aso Muhammad Ali Muhammad ◽  
Norliza Ibrahim ◽  
Rohana Ahmad ◽  
Muhammad Khan Asif ◽  
Zamri Radzi ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Cone Beam Ct ◽  
Bone Microstructure ◽  
Cone Beam ◽  
Trabecular Bone Microstructure ◽  
Microstructure Quantification

scholarly journals A comparative evaluation of cone beam CT and micro-CT on trabecular bone structures in the human mandible

2013 ◽  
Vol 42 (8) ◽  
pp. 20130145 ◽  
Author(s):  
J Van Dessel ◽  
Y Huang ◽  
M Depypere ◽  
I Rubira-Bullen ◽  
F Maes ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Comparative Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Micro Ct ◽  
Bone Structures

The assessment of trabecular bone parameters and cortical bone strength: A comparison of micro-CT and dental cone-beam CT

2013 ◽  
Vol 46 (15) ◽  
pp. 2611-2618 ◽  
Author(s):  
Jui-Ting Hsu ◽  
Shun-Ping Wang ◽  
Heng-Li Huang ◽  
Ying-Ju Chen ◽  
Jay Wu ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Cortical Bone ◽  
Bone Strength ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Micro Ct ◽  
Bone Parameters

scholarly journals Evaluation of the effect of vitamin D3 on mandibular condyles in an ovariectomized mouse model: a micro-CT study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Szandra Körmendi ◽  
Bálint Vecsei ◽  
Szilvia Ambrus ◽  
Kaan Orhan ◽  
Csaba Dobó-Nagy
Keyword(s):  
Mouse Model ◽  
Trabecular Bone ◽  
Vitamin D3 ◽  
Sham Group ◽  
Mandibular Condyle ◽  
Bone Microstructure ◽  
Micro Ct ◽  
Trabecular Thickness ◽  
Ovariectomized Mouse ◽  
Significant Difference

Abstract Background This study aimed to investigate the effect of ovariectomy and vitamin D3 on bone microstructure; this effect was examined in three regions of interest at one femoral and two mandibular sampling sites bone in an ovariectomized mouse model. Methods Thirty-six week-old female mice were randomly divided into three groups: 10 subjects were given oral cholecalciferol (vitamin D3) daily for 6 weeks after undergoing bilateral ovariectomy (D3 group), while 10 ovariectomized subjects (OVX) and 10 subjects who underwent a sham operation (SHAM) received peanut oil daily during the investigation. After extermination, the left hemimandible and femur were removed and scanned by micro-CT. The bone micromorphology parameters were analyzed and the BMD was calculated. Results The bone volume fraction (BV/TV) was significantly lower in the trabecular bone of the mandibular condyle in the OVX group than in the SHAM and D3 groups. Also there was a significant difference between the SHAM and D3 groups. The specific bone surface (BS/BV) was significantly higher in the OVX and D3 groups than in the SHAM group. Trabecular thickness (Tb.Th) was significantly higher in the SHAM group, and the trabecular bone pattern factor (Tb.Pf) was significantly higher in the OVX group than in the other two groups. Bone mineral density (BMD) of the femur and the mandible was significantly lower in the OVX group than in the SHAM and D3 groups. Conclusions Our results show that ovariectomy causes a significantly weaker bone microstructure in the mandibular condyle, where the protective effect of vitamin D3 resulted in a partial resorption.

scholarly journals Effect of Scanning Resolution on the Prediction of Trabecular Bone Microarchitectures Using Dental Cone Beam Computed Tomography

Diagnostics ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 368
Author(s):  
Ming-Tzu Tsai ◽  
Rong-Ting He ◽  
Heng-Li Huang ◽  
Ming-Gene Tu ◽  
Jui-Ting Hsu
Keyword(s):  
Computed Tomography ◽  
Trabecular Bone ◽  
Bone Quality ◽  
Cone Beam Computed Tomography ◽  
Correlation Coefficients ◽  
Experimental Results ◽  
Cone Beam ◽  
Micro Ct ◽  
Trabecular Thickness ◽  
Dental Implantation

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.

Association of cortical shape of the mandible on panoramic radiographs with mandibular trabecular bone structure in Japanese adults: a cone-beam CT-image analysis

2013 ◽  
Vol 30 (2) ◽  
pp. 160-167 ◽  
Author(s):  
Noriyasu Mochizuki ◽  
Noriyuki Sugino ◽  
Tadashi Ninomiya ◽  
Nobuo Yoshinari ◽  
Nobuyuki Udagawa ◽  
...  
Keyword(s):  
Image Analysis ◽  
Trabecular Bone ◽  
Bone Structure ◽  
Cone Beam Ct ◽  
Trabecular Bone Structure ◽  
Cone Beam ◽  
Ct Image ◽  
Panoramic Radiographs ◽  
Japanese Adults ◽  
Ct Image Analysis
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