scholarly journals Panoramic radiographs for detecting osteopenia: A pilot study

2017 ◽  
Vol 7 (4) ◽  
Author(s):  
Vivek Velayudhan Nair ◽  
Sunila Thomas ◽  
Jincy Thomas ◽  
Cucoo Mariam Mathew
Keyword(s):  
Pilot Study ◽  
Bone Mass ◽  
Gold Standard ◽  
Age Group ◽  
Low Bone Mass ◽  
Panoramic Radiographs ◽  
Cortical Index ◽  
Mandibular Cortical Index

Osteoporosis characterized by low bone mass/osteopenia can be identified using radiomorphometric indices in routine panoramic radiographs. This study estimates the prevalence of osteopenia in 50-80 years age group, using panoramic mandibular index (PMI), mental index (MI) and mandibular cortical index (MCI). PMI, MI and MCI were applied on 36 panoramic radiographs; MI and MCI were compared with PMI. The prevalence of osteopenia was 11.1% with PMI and 44.4% with MCI. Using MI, the prevalence was 2.8% and 33.3% with 3mm and 4.77mm threshold respectively. The prevalence of osteopenia detected was highest using MCI (44.4%). Considering PMI as gold standard, MI with 4.77 mm threshold showed better agreement with PMI.

scholarly journals The use of panoramic radiographs modified by an open access software to determine Mandibular Cortical Index

2017 ◽  
Vol 32 (2) ◽  
pp. 83 ◽  
Author(s):  
Luciana Munhoz ◽  
Claudia Fabiana Joca De Arruda ◽  
Fernando Amorim Mendonça Alves ◽  
Emiko Saito Arita ◽  
Claudio Costa ◽  
...  
Keyword(s):  
Open Access ◽  
Gold Standard ◽  
Previous Experience ◽  
Panoramic Radiographs ◽  
Statistical Significant Difference ◽  
Cortical Index ◽  
Experienced Radiologist ◽  
Significant Difference ◽  
Trained Observers ◽  
Mandibular Cortical Index

OBJECTIVE: to compare assessment of panoramic radiographs using Mandibular Cortical Index (MCI) by a radiologist with experience and two dentists with no experience in this index using original radiograph images and inverted images.METHODS: 64 panoramic radiographs were analyzed by three observers: a radiologist with previous experience in MCI and two trained dentists with no previous experience. First, the original images were assessed by the radiologist and defined as the gold standard. Then, dentists received training in the MCI. Assessment results obtained from the three observers were analyzed.RESULTS: When compared results from the experienced radiologist to positive and inverted images, no statistical significant difference was found. When considering the two trained observers, we found that inverted images had a lower agreement between the gold standard original images.CONCLUSION: We concluded that, within the limitations of this study, inverted radiographs are not recommended for MCI assessment.

Is there any difference between the British and Japanese de?nitions of the mandibular cortical index (MCI) on panoramic radiographs? A pilot study

2004 ◽  
Vol 20 (1) ◽  
Author(s):  
Akira Taguchi ◽  
Yoshikazu Suei ◽  
Keith Horner ◽  
Hugh Devlin ◽  
Takashi Nakamoto ◽  
...  
Keyword(s):  
Pilot Study ◽  
Panoramic Radiographs ◽  
Cortical Index ◽  
Mandibular Cortical Index

scholarly journals Periodontal disease defects and mandibular cortical index in lupus patients

2019 ◽  
Vol 22 (4) ◽  
pp. 506-512
Author(s):  
Vagner Braga ◽  
Lucas Morita ◽  
Luciana Munhoz ◽  
Silvia Lourenço ◽  
Emiko Arita
Keyword(s):  
Regression Analysis ◽  
Bone Loss ◽  
Periodontal Disease ◽  
Lupus Erythematosus ◽  
Alveolar Bone ◽  
Bone Defects ◽  
Panoramic Radiographs ◽  
Cortical Index ◽  
Multiple Organs ◽  
Mandibular Cortical Index

Objective:Systemic lupus erythematosus is an autoimmune disease that affects multiple organs. It is well known that lupus patients have higher risk of osteoporosis, but if the disease affects mandibular cortical bone and alveolar bone is not fully established. The objective of this study was to evaluate periodontal disease defects and mandibular osteoporotic alterations in patients with lupus as compared to healthy patients using panoramic radiographs.Material and Methods:The panoramic radiographs of 72 patients with lupus and 360 healthy patients were evaluated for the presence of bone loss secondary to periodontal disease, classified as horizontal and vertical bone loss. We also assessed mandibular osteoporotic alterations by using the mandibular cortical index. Logistic regression analysis was applied to estimate the risk of mandibular osteoporotic alterations as well as horizontal and vertical bone loss in patients with lupus as compared to healthy patients.Results:There were no statistically significant differences between groups in the presence of horizontal bone defects and mandibular cortical indexes. However, patients with lupus demonstrated that patients with lupus were 2.17 more likely to present vertical bone loss than healthy patients.Conclusions:Patients with lupus might have higher risk of vertical bone loss than healthy patients due to pathophysiology of their disease. Further larger prospective studies should be performed to confirm our findings.

Mandibular cortical index evaluation in masked and unmasked panoramic radiographs

2009 ◽  
Vol 38 (2) ◽  
pp. 86-91 ◽  
Author(s):  
F Yasar ◽  
S Sener ◽  
E Yesilova ◽  
F Akgünlü
Keyword(s):  
Panoramic Radiographs ◽  
Cortical Index ◽  
Index Evaluation ◽  
Mandibular Cortical Index

scholarly journals Do HIV patients have mandibular osteoporotic alterations? A mandibular cortical index case-control study

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Aline Nagai ◽  
Lucas Morita ◽  
Luciana Munhoz ◽  
Emiko Arita
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Panoramic Radiograph ◽  
Control Group ◽  
Mineral Density ◽  
Significance Level ◽  
Panoramic Radiographs ◽  
Cortical Index ◽  
Control Study ◽  
Mandibular Cortical Index

Objective: The objective of this study was to evaluate mandibular osteoporotic alterations in patients with HIV infection in comparison to non-HIV-infected patients using panoramic radiographs. Material and Methods: 26 HIV-infected patients and 142 non-HIV-infected patients (control group) were included in this study. Panoramic radiographs of the participants were assessed considering mandibular cortical index (MCI). Non-parametric comparisons between groups were performed, using Mann-Whitney test, at a level significance level of p= 0.05. Results: HIV-infected patients presented lower bone mineral density (BMD) at mandible, assessed by MCI in panoramic radiographs when compared to non-HIV-infected patients. The medication intake of HIV-infected patients was highly heterogeneous and could not be associated to the low BMD presented in the mandibular cortex. Conclusions:  HIV-infected patients may present lower mandibular BMD than non-HIV-infected patients.   Keywords Panoramic radiograph; osteoporosis; bone mineral density; HIV.

scholarly journals MANDIBULAR BONE QUALITY OF PANORAMIC RADIOGRAPHS IN HIV-INFECTED CHILDREN

2020 ◽  
Vol 5 (1) ◽  
pp. 85
Author(s):  
Ria Noerianingsih Firman ◽  
Irna Sufiawati ◽  
Risti Saptarini Primarti ◽  
Aga Satria Nurrachman ◽  
Merry Annisa Damayanti
Keyword(s):  
Bone Quality ◽  
Mental Foramen ◽  
People Living With Hiv ◽  
Mineral Density ◽  
Cross Sectional ◽  
Mandibular Bone ◽  
Panoramic Radiographs ◽  
Cortical Index ◽  
Inferior Border ◽  
Mandibular Cortical Index

Background: People living with HIV may have several pathologic conditions in its body and bone is one of the organs affected by HIV infection. HIV-infected patients have been associated frequently with osteoporosis and lower bone mineral density (BMD) which may lead to the increasing risk of bone fracture. This situation may become more complicated in children and young age as it will affect the long-term bone quality and development later in life until the peak BMD is reached. Objectives: The aim of this study was to measure the mandibular bone quality using the mandibular cortical index (MCI) and panoramic mandibular index (PMI) in panoramic radiographs of HIV-infected children. Method: This study used descriptive cross sectional research design which analyzed panoramic radiographs of HIV-infected children and measured its mandibular bone quality. Total 43 panoramic radiographs of HIV-infected children were observed and analyzed qualitatively using mandibular cortical index (MCI) and panoramic mandibular index (PMI) were used for the quantitave measurement, as it have been widely used for assesing mandibular bone quality in previous studies. Mandibular cortical index (MCI) has 3 categories of cortical bone quality: C1 (normal cortex), C2 (mildly to moderately eroded cortex), and C3 (severely eroded cortex), while the normal ratio of mental foramen-inferior border of mandible to mandibular cortical length in panoramic mandibuIar index is about 0.3. Result: Mandibular cortical index (MCI) of 43 HIV-infected children consist of 4 samples in C1, 38 in  C2, 1 in C3, while the panoramic mandibular index (PMI) of 43 HIV-infected children consist of 23 less than normal, 5 normal, 15 more than normal. Conclusions: The most number of mandibular cortical index (MCI) was C2 (mildly to moderately eroded cortex) and the most number of panoramic mandibular index (PMI) was less than normal of HIV-infected children.

scholarly journals Evaluating Mandibular Cortical Index Quantitatively

2008 ◽  
Vol 02 (04) ◽  
pp. 283-290 ◽  
Author(s):  
Fusun Yasar ◽  
Faruk Akgunlu
Keyword(s):  
Fractal Dimension ◽  
Weighted Kappa ◽  
Panoramic Radiographs ◽  
Binary Images ◽  
Cortical Index ◽  
Significant Difference ◽  
Cortical Morphology ◽  
Lacunarity Analysis ◽  
Mandibular Cortical Index

ABSTRACTObjectives: The aim was to assess whether Fractal Dimension and Lacunarity analysis can discriminate patients having different mandibular cortical shape.Methods: Panoramic radiographs of 52 patients were evaluated for mandibular cortical index. Weighted Kappa between the observations were varying between 0.718-0.805. These radiographs were scanned and converted to binary images. Fractal Dimension and Lacunarity were calculated from the regions where best represents the cortical morphology.Results: It was found that there were statistically significant difference between the Fractal Dimension and Lacunarity of radiographs which were classified as having Cl 1 and Cl 2 (Fractal Dimension P:0.000; Lacunarity P:0.003); and Cl 1 and Cl 3 cortical morphology (Fractal Dimension P:0.008; Lacunarity P:0.001); but there was no statistically significant difference between Fractal Dimension and Lacunarity of radiographs which were classified as having Cl 2 and Cl 3 cortical morphology (Fractal Dimension P:1.000; Lacunarity P:0.758).Conclusions: FD and L can differentiate Cl 1 mandibular cortical shape from both Cl 2 and Cl 3 mandibular cortical shape but cannot differentiate Cl 2 from Cl 3 mandibular cortical shape on panoramic radiographs. (Eur J Dent 2008;2:283-290)

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