Mandibular Cortex Correlates to Alveolar Bone Density in Indonesian Women Aged 40 to 75 Years (original) (raw)
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Zenodo (CERN European Organization for Nuclear Research), 2023
The aim of this study was to compare the assessment of mental index, mandibular cortical index and bone quality index on digital panoramic radiography and cone-beam computed tomography. Materials and Methods: Digital-panoramic-radiography and conebeam-computerized-tomography images of 113 dental-patients who aged more than 45 years without systemic diseases were evaluated. The patients were divided into two groups according to mental-index (which was measured on panoramic-radiography) value set by ?3 mm; the patients with osteoporosis risk and without. Mental-index was performed on both side(left-right), and the average value of two measurements was calculated. Mental-index, computerizedtomography-mental-index, mandibular-cortical-index, computerizedtomography-cortical-index and bone-quality-index were measured on digital-panoramic-radiography and cone-beam-computerizedtomography by two observers. Descriptive and logistic regression statistics were performed; p<0.05 was considered significant. Results: The results of both methods were consistent with each other. For observers there were statistically significant differences between the osteoporotic risk-groups and the normal-groups for computerizedtomography-mental-index (p<0.001), mandibular-cortical-index/ computerized-tomography-cortical-index, bone-quality-index. According to first and second observers' measurements the optimum threshold value of computerized-tomography-mental-index was found respectively 3.01mm and 3.03mm for the risk of osteoporosis. The correlation(weighted-kappa-test) between mandibular-cortical-index and computerized-tomography-cortical-index values for observers' evaluations respectively (1st and 2nd observer) was moderate and high. The frequency distributions of 1,2,3 classes were found significantly different(p<0.05) in both individuals with(osteoporotic) and without(healthy) risk of osteoporosis for bone-quality-index values in both digital-panoramic-radiography and cone-beam-computerizedtomography images. Conclusions: cone-beam-computerizedtomography images can be used to assess the osteoporosis. By determining a threshold value in cone-beam-computerized-tomography, awareness of the patient can be raised by the dentist according to the status of these values, which can be easily measured on the image. ARTICLE INFO/MAKALE BİLGİSİ
IJERT-Dental Panoramic Radiographs in Prediction of Osteoporosis in Postmenopausal Women
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/dental-panoramic-radiographs-in-prediction-of-osteoporosis-in-postmenopausal-women https://www.ijert.org/research/dental-panoramic-radiographs-in-prediction-of-osteoporosis-in-postmenopausal-women-IJERTV3IS030639.pdf Osteoporosis is a skeletal disorder characterized by low bone mass and micro-architectural deterioration, with a resulting increase in bone fragility and susceptibility to fracture.Computer-aided diagnosis system is designed to measure mandibular inferior cortical width on dental panoramic radiographs and evaluation of the system efficacy in indentifying postmenopausal women with low skeletal bone mineral density.Mandibular inferior cortical width was measured by enhancing the original panoramic image,determining cortical boundaries,and evaluating distance between the upper and the lower boundaries in the region of interest by using the MATLAB (Matrix Laboratory)software.The distance measured is compared with the DXA(dual energy absorptiometry) scan report to determine the osteoporosis.
Heliyon, 2022
The present study was carried out to assess the possible changes in mandibular bone density according to age and gender through dental panoramic radiographs (PAN). More specifically, the region of the mandibular oblique line. Materials & methods: A group of 374 dental patients previously treated in the Ribeirão Preto Dental School (FORP/ USP) was included in the study. The complete dental profiling of all the subjects (including PAN images) was previously available in the archive of the same institution. Those subjects were separated into four groups considering age and gender: Group 1-100 young adult men (21.48 AE 3.34 y. o.), Group 2-100 young adult women (20.66 AE 1.52 y. o.), Group 3-87 postmenopausal women (74.07 AE 9.82 y. o.), and Group 4-87 men over 70 years old (75.92 AE 8.71 y. o.). A new index called "W-index" (WI) was proposed for analyzing the possible difference in mandibular bone density. This new index is the ratio between the average pixel value of the image area of the mandibular ramus (AVMR) and the average pixel value of the image area of the mandibular oblique line (AVOL) (WI ¼ AVMR/AVOL). WI was measured for each subject on each PAN and statistical analysis was performed to search how well WI can characterize each study group. Results: The largest difference in WI is observed when we compare older subjects (WI 0.73 AE 0.11) with younger subjects (0.89 AE 0.05). WI also varies significantly with gender but in a smaller amount. Mean WI for old women (0.68 AE 0.11) was found lower than for old men (0.77 AE 0.09), and mean WI for young women (0.89 AE 0.05) was also inferior to young men (0.91 AE 0.05). The differences in WI observed in the subject group were tested for a significance level of α ¼ 0,01. We speculate that WI refers to an aspect of bone mineral density. First, the sharp contrast of the mandibular oblique line may signify the loss of mandibular bone mass. And second, it showed to vary significantly with gender and age, but with higher intensity with age. Clinical significance: WI might be used in the future for low bone mineral density risk assessment. ☆ Statement of clinical relevance: This work can demonstrate that new radiometric models can be used for different structures and patients in radiographs, and can be used as a possible method of assessing bone mineral density.
Journal of Clinical …, 2007
The aim of this study was to measure the accuracy of porosity of the mandibular cortex on dental panoramic radiographs (DPRs) in diagnosis of osteoporosis, alone and in combination with a clinical risk index. Six hundred seventy-one women (45e70 yr) were recruited in the study, and dual-energy X-ray absorptiometry of the hip and lumbar spine was performed. A clinical index of osteoporosis risk (OSIRIS) and a DPR were obtained for each subject. The cortical appearance on the DPR was classified using the mandibular cortical index (MCI) by 5 observers. receiver operating characteristic (ROC) curve analysis was performed with calculation of area under the ROC curve (AUC) and sensitivity and specificity at various thresholds. Complete data were available for 653 subjects, of whom 21.6% had osteoporosis. The AUC for OSIRIS was 0.838. When used alone as the diagnostic test, MCI AUC for the 5 observers ranged from 0.560 to 0.670, significantly less than OSIRIS. Intraobserver and interobserver repeatability of MCI assessment was inconsistent. We conclude that MCI has limited value for osteoporosis diagnosis, being most appropriate as a method of fortuitous case-finding.
Makara Journal of Health Research, 2011
Osteoporosis has become a worldwide problem and has been known as a silence disease. Nowadays, there are a lot of diagnostic tools for detecting osteoporosis. Eighty eight postmenopausal were included and underwent digital panoramic, digital periapical, and conventional radiography. Ultrasound bone densitometry of os calcis used as gold standard. Correlation between stiffness index (SI) with a digital dental, digital panoramic and conventional dental radiography are 0.170 (p = 0.11),-0382 (p = 0.001) and 0.246 (p = 0.021) respectively. Significant relationship was found between the SI only with digital panoramic and conventional dental. The highest correlation was found between SI values with mandibular Inferior Cortex on digital panoramic (-0.382, Pearson Correlation Tests). Correlation between digital panoramic radiographs and the SI values was the highest of the three radiographic modalities in this study. This indicates that evaluation of cortical bone is more accurate than cancellous bone. Bone quality evaluation in patients at high risk for osteoporosis using panoramic and dental conventional radiograph by dentist, contributes in preventing further occurrence of osteoporosis which in turn could reduce mortality and morbidity of osteoporosis in Indonesia.
Journal of investigative and clinical dentistry, 2012
To develop a computer-aided diagnosis system to continuously measure mandibular inferior cortical width on dental panoramic radiographs and evaluate the system's efficacy in identifying postmenopausal women with low-skeletal bone mineral density. Mandibular inferior cortical width was continuously measured by enhancing the original X-ray image, determining cortical boundaries, and evaluating all distances between the upper and lower boundaries in the region of interest. The system's efficacy in identifying osteoporosis at the lumbar spine and the femoral neck was evaluated for 100 women (≥50 years): 50 in the development of the tool and 50 in its validation. The sensitivity and specificity of the cortical measurements for identifying the development patients were 90% (95% confidence interval shown in parentheses) (63.0-87.0) in women with low spinal bone mineral density, and 81.8% (70.1-91.8) and 69.2% (56.2-81.8) in those with low femoral bone mineral density, respectively....
Al-Azhar Dental Journal for Girls
Purpose: This study aimed to evaluate the value of quantitative and qualitative mandibular radio morphometric indices, as recorded from panoramic imaging, in prediction and diagnosis of osteoporosis and osteopenia. Materials and methods: Forty postmenopausal women their age between 45 and 65 years previously diagnosed as having osteoporosis as confirmed by DEXA scans were selected. DEXA and Orthopantomogram (OPG) were applied on all the patients. Panoramic mandibular index (PMI), Mental index (MI), gonial index (GI), and mandibular cortical index (MCI) were dignified and matched with the scores obtained from DEXA scan. Results: There was significant correlation between DEXA results with panoramic indices in the normal, osteopenia and osteoporotic groups. Conclusion: By increasing the age and the postmenopausal duration, MCW and PMI decrease, therefore, dentists and dent maxillofacial radiologists could act in a particular manner in early diagnosis of low BMD and help to refer high-danger patients for precise evaluation.
Role of Panoramic Radiographs in the Detection of Osteoporosis
Journal of Oral Hygiene & Health, 2014
A study was conducted with 110 subjects to determine whether panoramic-based indices, mandibular cortical thickness (MCT) and Panoramic mandibular index (PMI) could be used as a diagnostic tool to differentiate normal from osteoporotic patient. Both the indices correlated significantly with bone mineral density. It was concluded that using MCT was simple with no calculations. The findings on an OPG will definitely help the dentists to identify patients with undetected low BMD and refer them to medical professionals for bone densitometry. This will help a dentist to plan the treatment accordingly for removable, fixed partial denture or implants.
The correlation between age and mandibular bone quality based on panoramic radiographs
Makassar Dental Journal (MDJ), 2021
Introduction: As someone ages, the bone quality may change and may be seen on mandibular bone. The changes in mandibular bone quality may be assessed using a panoramic radiograph. The aim of this study was to describe mandibular bone quality and to know the correlation between age and mandibular bone quality on panoramic radiograph. Methods: Cross sectional correlation analysis; the population was panoramic radiograph archives of patients in Dental Radiology Installation RSGM Universitas Padjadjaran within the range of age 13-59 years old when the radiograph was taken so that obtained 48 samples. The mandibular bone quality was obtained with mandibular alveolar bone resorption index (MM ratio) method using EzPax-Plus software. Results: The highest average number of MM ratio was 2.384 and the lowest was 2.2856. The results showed correlation coefficient between age and MM ratio on right mandible calculated with Spearman's rank (rs) was-0.046 (p-value=0.757) and rs=-0.058 (p-value=0.697) between age and MM ratio on left mandible. Conclusion: There is no correlation between age and mandibular bone quality on panoramic radiographs in RSGM Unpad based on MM Ratio. Keywords: age, mandibular alveolar bone resorption index (MM ratio), mandibular bone quality, panoramic radiograph ABSTRAK Pendahuluan: Seiring bertambahnya usia kualitas tulang dapat berubah, yang terlihat pada tulang mandibula. Perubahan kualitas tulang mandibula dapat dinilai dengan menggunakan radiografi panoramik. Penelitian ini ditujukan untuk mendeskripsikan kualitas tulang mandibula dan mengetahui hubungan usia dengan kualitas tulang mandibula pada radiografi panoramik. Metode: Analisis korelasi cross sectional; populasi adalah arsip radiografi panoramik pasien di Instalasi Radiologi Gigi RSGM Universitas Padjadjaran dengan rentang usia 13-59 tahun pada saat pengambilan radiografi sehingga diperoleh 48 sampel. Kualitas tulang mandibula diperoleh dengan metode mandibular alveolar bone resorption index (MM Ratio) menggunakan software EzPax-Plus. Hasil: Rerata jumlah rasio MM tertinggi adalah 2,384 dan terendah adalah 2,2856; menunjukkan koefisien korelasi antara usia dan Rasio MM pada mandibula kanan yang dihitung dengan rank Spearman (rs) adalah-0,046 (nilai p=0,757) dan rs=-0,058 (nilai p= 0,697) antara usia dan rasio MM pada mandibula kiri. Simpulan: Tidak ada hubungan antara usia dengan kualitas tulang mandibula pada radiografi panoramik di RSGM Unpad berdasarkan rasio MM. Kata kunci: usia, indeks resorpsi tulang alveolar mandibula (rasio MM), kualitas tulang mandibula, radiografi panoramik