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

Mochizuki, Noriyasu; Sugino, Noriyuki; Ninomiya, Tadashi; Yoshinari, Nobuo; Udagawa, Nobuyuki; Taguchi, Akira

doi:10.1007/s11282-013-0155-z

Cited by 7 publications

(5 citation statements)

References 26 publications

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“…The exams most used for FA were panoramic radiographs (34 articles), [10][11][12]15,16, periapical radiographs (21 articles), 2,5,45-63 and cone beam CT (CBCT) (15 articles). 1,[64][65][66][67][68][69][70][71][72][73][74][75][76][77] Bitewing radiography, 63,78-80 micro-CT, [81][82][83] ultrasound, 84,85 sialography, 18,86 and lateral cephalometric radiography 87 were also found in this review (Figure 4). The included studies showed different sample sizes.…”

Section: Study Characteristicsmentioning

confidence: 56%

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Use of fractal analysis in dental images: a systematic review

Kato

Barra

Tavares

et al. 2020

Dentomaxillofacial Radiology

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Objectives: This study reviewed the use of fractal analysis (FA) in dental images. Methods: A search was performed using PubMed, MEDLINE, LILACS, Web of Science and SCOPUS databases. The inclusion criteria were human studies in the English language, with no date restriction. Results: 78 articles were found in which FA was applied to panoramic radiographs (34), periapical radiographs (21), bitewing radiographs (4), cephalometric radiograph (1), cone beam CT (15), micro-CT (3), sialography (2), and ultrasound (2). Low bone mineral density (21) and systemic or local diseases (22) around the bone of dental implants were the main subjects of the study of FA. Various sizes and sites of the regions of interest were used to evaluate the bone structure. Different ways were used to treat the image and to calculate FA. FA of 43 articles showed significant differences in the comparison of groups, mainly between healthy and sick patients. Conclusions: FA in Dentistry has been widely applied to the study of images. Panoramic and periapical radiographs were those most frequently used. The Image J software and the box-counting method were extensively adopted in the studies reviewed herein. Further studies are encouraged to improve clarification of the parameters that directly influence FA.

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Section: Study Characteristicsmentioning

confidence: 56%

“…1,72 Similar to panoramic radiographs, FA on a CBCT slice can be helpful in the differentiation of groups of patients with low BMD. 1,69 However, other authors found no significant difference in FD values between postmenopausal females with and without osteoporosis. Instead, a significant negative correlation was observed between FD and…”

Section: Discussionmentioning

confidence: 90%

Use of fractal analysis in dental images: a systematic review

Kato

Barra

Tavares

et al. 2020

Dentomaxillofacial Radiology

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“…6,7 Previous research records the high BMD variation levels, as measured by quantitative computed tomography (QCT) in the mandible. 8 Another alternative commonly used to assess the status of bone density is to use DEXA. The cortical bone of the inferior mandibular border is eroded by age and in patients with low bone BMD or osteoporosis.…”

Section: Introductionmentioning

confidence: 99%

“…Some researchers report that cortical measurements of the mandible (shape and width), as detected on panoramic radiographs, are useful screening tools for identifying individuals with low bone BMD or osteoporosis. 8,9,10 None data describes the mechanisms underlying mandibular bone and duration HAART in HIV-infected individuals, especially in children. 11,12 A study explaining the relation of mandibular bone density to CD4 T-cells counts in HIV-infected children has not been conducted; based on the above description, The research objective was to analyze the correlation between the mandibular bone density and CD4 T-cells and HAART duration in HIV-infected children.…”

Section: Introductionmentioning

confidence: 99%

Correlation between mandibular bone density, CD4 T-cells, and duration of HAART in HIV-infected children

et al. 2021

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Introduction: Perinatal HIV infection has decreased adverse bone health effects and mineral accrual. HIV-infected patients have a multifactorial origin, including HIV bone cell infections, inflammatory cytokine effects on osteoblast and osteoclast activity, and HAART. The research objective was to examine the correlation between the mandibular bone density and CD4 T-cells with HAART duration in HIV-infected children. Methods: The mandibular bone density in the HIV-infected pediatric population was evaluated using a panoramic radiograph. The research design was a cross-sectional and univariate regression analysis for the sampling method. Mandibular density analysis using Spearman and Pearson correlation and HAART duration using Kendall correlation. Thirty-five HIV-infected children and seventeen non-HIV-infected children were recruited. Results: This study showed the correlation between HIV and non-HIV infected children (p<0.05). The correlation between CD4 T-cells and mandibular bone density was significant (p<0.05). Long term HAART and mandibular bone density have a significant correlation (p<0.001). This research showed correlations between mandibular bone density CD4 T-cells and duration of HAART in HIV-infected children. Conclusion: HIV-infected children require a regular mandibular cortical bone examination to detect the onset of osteopenia and osteoporosis to obtain appropriate therapy.

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“…These methods provide accurate BMD values and are clinically used for diagnosing osteoporosis [10][11][12][13]. However, these methods primarily scan the lumbar spine and hip, with patients in a supine position [12,[14][15][16]; thus, these methods can only be applied to limited conditions such as the supine position. DXA and QCT-based scanning is difficult in patients who have undergone hip replacement.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method for Estimation of Femoral Neck Bone Mineral Density Using Forearm Images from Peripheral Cone Beam Computed Tomography

Jeong

Lee

et al. 2016

Applied Sciences

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Abstract:The main goal of osteoporosis treatment is prevention of osteoporosis-induced bone fracture. Dual-energy X-ray absorptiometry (DXA) and quantitative computed tomographic imaging (QCT) are widely used for assessment of bone mineral density (BMD). However, they have limitations in patients with special conditions. This study evaluated a method for diagnosis of osteoporosis using peripheral cone beam computed tomography (CBCT) to estimate BMD. We investigated the correlation between the ratio of cortical and total bone areas of the forearm and femoral neck BMD. Based on the correlation, we established a linear transformation between the ratio and femoral neck BMD. We obtained forearm images using CBCT and femoral neck BMDs using dual-energy X-ray absorptiometry (DXA) for 23 subjects. We first calculated the ratio of the cortical to the total bone area in the forearm from the CBCT images, and investigated the relationship with the femoral neck BMDs obtained from DXA. Based on this relationship, we further investigated the optimal forearm region to provide the highest correlation coefficient. We used the optimized forearm region to establish a linear transformation of the form to estimate femoral neck BMD from the calculated ratio. We observed the correlation factor of r = 0.857 (root mean square error = 0.056435 g/cm 2 ; mean absolute percentage error = 4.5105%) between femoral neck BMD and the ratio of the cortical and total bone areas. The strongest correlation was observed for the average ratios of the mid-shaft regions of the ulna and radius. Our results suggest that femoral neck BMD can be estimated from forearm CBCT images and may be useful for screening osteoporosis, with patients in a convenient sitting position. We believe that peripheral CBCT image-based BMD estimation may have significant preventative value for early osteoporosis treatment and management.

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

Cited by 7 publications

References 26 publications

Use of fractal analysis in dental images: a systematic review

Use of fractal analysis in dental images: a systematic review

Correlation between mandibular bone density, CD4 T-cells, and duration of HAART in HIV-infected children

A Novel Method for Estimation of Femoral Neck Bone Mineral Density Using Forearm Images from Peripheral Cone Beam Computed Tomography

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