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Vogel JDO, Freire CH, Munhoz L, Andrade BABD, Tenório JR. Mandibular bone imaging assessment in chronic kidney disease: a systematic review and meta-analysis. Oral Surg Oral Med Oral Pathol Oral Radiol 2024:S2212-4403(24)00291-8. [PMID: 38918134 DOI: 10.1016/j.oooo.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/30/2024] [Accepted: 05/12/2024] [Indexed: 06/27/2024]
Abstract
OBJECTIVE This systematic review and meta-analysis sought to assess the published research on mandibular cortical and trabecular bone patterns (TBPs) in individuals with chronic kidney disease (CKD) assessed by radiomorphometric index (RMI) analysis on dental radiographs. STUDY DESIGN The review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Observational studies that radiographically evaluated cortical and TBPs were analyzed. Risk of bias was assessed according to the Joanna Briggs Institute Critical Appraisal Checklists. Quality of evidence was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluation approach. Meta-analysis was performed for studies using dichotomous models or verifying mean differences according to RMI type. RESULTS Thirteen papers were included. Mandibular cortical index (MCI) and mental index (MI) were the most frequently evaluated RMIs. For MCI, the estimated risk ratio for decreased bone mineral density indicated by greater porosity in the cortices was 13.7% in CKD patients (95% confidence interval: 0.04-0.24; P = .008) when compared to healthy individuals. MI mean differences in CKD compared to control groups ranged from -0.5100 to -0.2000 mm. However, risk of bias was generally high and quality of evidence was very low. CONCLUSIONS MCI and MI are useful screening tests in assessing bone patterns but must be evaluated with caution due to the risk of bias and low quality of evidence in the published literature.
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Affiliation(s)
- Jéssica de Oliveira Vogel
- Department of Pathology and Oral Diagnosis - School of Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Clara Herrera Freire
- Department of Pathology and Oral Diagnosis - School of Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Luciana Munhoz
- Department of Stomatology, Public Healthy and Forensic Dentistry - Ribeirão Preto School of Dentistry - University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Jefferson R Tenório
- Department of Pathology and Oral Diagnosis - School of Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
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Kaya S, Koc A. Radiologic evaluation of associated symptoms and fractal analysis of unilateral dens invaginatus cases. Oral Radiol 2024:10.1007/s11282-024-00756-4. [PMID: 38748387 DOI: 10.1007/s11282-024-00756-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/27/2024] [Indexed: 07/07/2024]
Abstract
OBJECTIVE The aim of this study is to determine the age-based prevalence of dens invaginatus cases and to learn the radiologic findings. In addition, fractal analysis of the periapical regions of unilateral dens invaginatus cases and contralateral teeth was performed to determine the effect of possible microleakage on fractal dimension. METHODS A total of 136 patients (170 teeth) identified in panoramic radiographs taken for diagnostic purposes between January 2018 and December 2023 at our Department of Oral and Maxillofacial Radiology were included in the study. Data were analysed using IBM SPSS V23. The Chi-square test was used for comparing categorical variables between groups. The relationship between the FD values calculated around the apexes of the teeth with unilateral dens invaginatus and the contralateral teeth was analyzed by paired t test. A significance level of p < 0.050 was adopted. RESULTS The mean age of the cases was calculated as 28.1 (8-63) years. 66 (48.5%) of the cases were female, and 70 (51.1%) were male. The lateral incisor was the most affected tooth among these cases. Bilateral cases were observed in 34 patients. Type 2 was detected in 93 patients, Type 1 in 35 patients, and Type 3 dens invagination in 8 patients. Dens invaginatus cases were observed in 134 maxillary and 2 mandibular teeth. Periapical lesions were seen in 22 of these cases. CONCLUSIONS Dens invaginatus cases are a congenital anomaly encountered at any age. Early diagnosis is crucial to prevent the loss of pulp vitality due to these invaginations. It should be noted that these invaginations can affect both jaws. However, due to the prevalence of occurrence in the maxillary anterior teeth and asymptomatic nonvitality, particular attention should be paid to evaluating this region.
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Affiliation(s)
- Sema Kaya
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Van Yuzuncu Yil University, Van, Turkey.
| | - Alaettin Koc
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Van Yuzuncu Yil University, Van, Turkey
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Bostan SA, Özarslantürk S, Günaçar DN, Gonca M, Göller Bulut D, Ok Bostan H. Direct-Acting Oral Anticoagulant/Vitamin K Antagonists: Do They Affect the Trabecular and Cortical Structure of the Mandible? J Clin Densitom 2024; 27:101495. [PMID: 38688206 DOI: 10.1016/j.jocd.2024.101495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND This study aimed to evaluate the mandibular bone structure of patients using oral anticoagulants (OACs) vitamin K antagonist drugs (warfarin) and other OACs including direct oral anticoagulants [(DOACs) apixaban, rivaroxaban, dabigatran, edoxaban]. Analyses were based upon the fractal dimension (FD), the panoramic mandibular index (PMI) and the Klemetti index (KI), which is also known as the mandibular cortical index (MCI). METHODOLOGY Ninety participants were divided into three groups: group 1: 30 systemically healthy individuals who had not used any anticoagulants before, group 2: 30 individuals using warfarin, and group 3: 30 individuals using DOACs. FD was used to analyze trabecular bone architecture in the condyle, angle, and two sites in the alveolar bone. PMI was used to evaluate the quantity of cortical bone and KI was used to evaluate the cortical bone quality. RESULTS There was no difference between the groups regarding FD analysis and KI; however, a difference was found between groups 1, 2, and 3 in the PMI (P≤ 0.001). The PMI in group 1 was higher than in groups 2 and 3. CONCLUSION Mandibular radiomorphometric indices can be used on panoramic radiographs to evaluate the quantity of mandibular cortical bone in patients using oral anticoagulants.
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Affiliation(s)
- Semih Alperen Bostan
- Recep Tayyip Erdoğan University, Faculty of Dentistry, Department of Periodontology, Rize, Turkey
| | - Savaş Özarslantürk
- University of Health Sciences, Gulhane Faculty of Dental Medicine, Department of Dentomaxillofacial Radiology, Ankara, Turkey
| | - Dilara Nil Günaçar
- Recep Tayyip Erdoğan University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Rize, Turkey
| | - Merve Gonca
- Recep Tayyip Erdoğan University, Faculty of Dentistry, Department of Orthodontics, Rize, Turkey
| | - Duygu Göller Bulut
- Bolu Abant İzzet Baysal University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Bolu, Turkey
| | - Hilal Ok Bostan
- Recep Tayyip Erdoğan University, Faculty of Dentistry, Department of Prosthodontics, Rize, Turkey.
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Temur KT, Magat G, Cosgunarslan A, Ozcan S. Evaluation of Jaw Bone Change in Children and Adolescents with Rheumatic Heart Disease by Fractal Analysis. Niger J Clin Pract 2024; 27:260-267. [PMID: 38409156 DOI: 10.4103/njcp.njcp_346_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 12/26/2023] [Indexed: 02/28/2024]
Abstract
BACKGROUND Recognizing the oral needs of people living with rheumatic heart disease (RHD), particularly in relation to their jaws, is of paramount importance. AIMS This study aimed to evaluate potential jaw bone changes in children and adolescents diagnosed with RHD and compare them with a group of healthy children and adolescents. METHODS AND MATERIAL The dental panoramic radiographs (DPRs) of 32 children and adolescents diagnosed with RHD comprised the case group. In contrast, the control group consisted of DPRs from 32 children and adolescents without any known diseases. Two regions of interest (ROI1 and ROI2) of trabecular bone and a separate region of interest (ROI3) of cortical bone were selected for fractal analysis. The mandibular cortical index (MCI) was evaluated. RESULTS The ROI1 fractal dimension (FD) value of the individuals in the case group was statistically higher in the right jaw than in the left jaw (P < 0.01). Significant differences were determined between the case and control groups regarding the left ROI1, and the left and the right ROI2 (P < 0.05). No significant difference was found between the patient and control groups regarding the MCI value (P > 0.05). CONCLUSIONS The results of this study showed that bone metabolism was affected unilaterally in the condyle region and bilaterally in the gonial region of patients with RHD. It also revealed that the cortical layer was not affected.
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Affiliation(s)
- K T Temur
- Oral and Maxillofacial Radiology, Niğde Ömer Halisdemir University, Niğde, Turkey
| | - G Magat
- Oral and Maxillofacial Radiology, Necmettin Erbakan University, Konya, Turkey
| | - A Cosgunarslan
- Oral and Maxillofacial Radiology, Erciyes University, Kayseri, Turkey
| | - S Ozcan
- Oral and Maxillofacial Radiology, İzmir Katip Çelebi University, İzmir, Turkey
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Ozturk EMA, Artas A. Evaluation of Bone Mineral Changes in Panoramic Radiographs of Hypothyroid and Hyperthyroid Patients Using Fractal Dimension Analysis. J Clin Densitom 2024; 27:101443. [PMID: 38070428 DOI: 10.1016/j.jocd.2023.101443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/13/2023] [Indexed: 02/16/2024]
Abstract
Objective Hyperthyroidism and hypothyroidism are endocrinopathies that cause a decrease in bone mineral density. The aim of this study is to investigate possible bone changes in the mandible caused by hyperthyroidism and hypothyroidism using fractal analysis (FA) on panoramic radiographs. Material and Methods Panoramic radiographs of a total of 180 patients, including 120 patient groups (60 hyperthyroid, 60 hypothyroid) and 60 healthy control groups, were used. Five regions of interests (ROI) were determined from panoramic radiographs and FA was performed. ROI1: geometric midpoint of mandibular notch and mandibular foramen, ROI2: geometric midpoint of mandibular angle, ROI3: anterior of mental foramen, ROI4: basal cortical area from distal mental foramen to distal root of first molar, ROI5: geometric center of mandibular foramen and mandibular ramus. Results While a significant difference was observed between the patient and control groups regarding ROI1 and ROI2 (p < 0.05); there was no significant difference between the groups in relation to ROI3, ROI4, and ROI5. All FA values were lower in the hyperthyroid group than in the hypothyroid group. Conclusion Fractal analysis proves to be an effective method for early detection of bone mass changes. In the present study, it was concluded that while the mandibular cortical bone was intact, trabecular rich regions were affected by osteoporosis caused by thyroid hormones. Necessary precautions should be taken against the risk of osteoporosis in patients with thyroid hormone disorders.
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Affiliation(s)
- Elif Meltem Aslan Ozturk
- DDS, Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara Medipol University, Cankaya, Ankara, Turkey.
| | - Aslihan Artas
- DDS, Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Sütcü Imam University, 46050 Onikisubat, Kahramanmaras, Turkey
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Dedeoğlu N, Eşer G, Çelik Özen D, Altun O. Five-year change of panoramic radiomorphometric indices and fractal dimension values in type 2 diabetes patients. Oral Radiol 2024; 40:49-57. [PMID: 37610653 DOI: 10.1007/s11282-023-00707-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/03/2023] [Indexed: 08/24/2023]
Abstract
OBJECTIVES Diabetes mellitus is a chronic disease characterized by dysregulation of glucose metabolism, with characteristic long-term complications accompanied by changes in bone quality. The purpose of this study is to compare the results with a control group by performing radiomorphometric analyses on panoramic radiographs obtained 5 years apart to examine changes in the mandibular bone cortex and microstructures of type 2 diabetes mellitus (T2DM) patients. METHODS Two panoramic radiographs that were taken 5 years (mean 5.26 ± 0.134) apart from 52 patients with T2DM (n:26) and a control group (n:26) were used. A total of 104 images were evaluated. Analyses were done from the condyle (FD1), angulus (FD2), distal second premolar apex (FD3), and anterior to the mental foramen (FD4) for fractal dimension (FD) in the mandible. Symphysis index (SI), anterior index (AI), molar index (MI), posterior index (PI), and panoramic mandibular index (PMI) measurements were taken for cortical analysis. Three-way ANOVA, three-way robust ANOVA, two-way ANOVA, and two-way robust ANOVA tests were used for statistical analysis (p < 0.05). RESULTS After a 5-year period, there was a significant decrease in all FD measures of the mandible in both T2DM and control groups (p < 0.05). This resulted in a statistical difference in the main effect of time. After a 5-year period, no significant difference in mandibular cortical measures was identified between the T2DM and control groups (p > 0.05). CONCLUSION According to panoramic radiography, the mandibular trabecular structure deteriorated after 5 years, whereas cortical values remained the same. It concluded that T2DM had no effect on these results.
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Affiliation(s)
- Numan Dedeoğlu
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inonu University, 44280, Malatya, Turkey.
| | - Gözde Eşer
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inonu University, 44280, Malatya, Turkey
| | - Duygu Çelik Özen
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inonu University, 44280, Malatya, Turkey
| | - Oğuzhan Altun
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inonu University, 44280, Malatya, Turkey
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Alpaydin MT, Buyuk SK, Abay F, Korkmaz YN. Evaluation of mandibular osseous structure in patients with mandibular asymmetry: a fractal analysis study. Oral Surg Oral Med Oral Pathol Oral Radiol 2023; 136:656-662. [PMID: 37516622 DOI: 10.1016/j.oooo.2023.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 06/02/2023] [Accepted: 06/17/2023] [Indexed: 07/31/2023]
Abstract
OBJECTIVE We evaluated the effect of mandibular asymmetry on the trabecular structure of the mandible as measured through fractal analysis (FA). STUDY DESIGN We divided a sample of 105 patients with skeletal class I occlusion, cervical vertebral maturation CS6, and skeletal vertical dimension ratios within normal limits into right asymmetric, left asymmetric, and symmetric groups. We performed FA on 6 bilateral regions of interest on panoramic radiographs of the patients and calculated the mean fractal dimension (FD) for each region. We performed the Wilcoxon signed-rank and paired t tests to compare the significance of differences in FD between sides within each group and between groups for all regions. Statistical significance was established at P < .05. RESULTS We found statistically significant differences in mean FD values between the right and left condyles of the 2 asymmetric patient groups. The FD was greater in the left condyle of patients with right asymmetry and in the right condyle of patients with left asymmetry. The right condyle had a significantly greater FD in left asymmetric patients than in right asymmetric patients. CONCLUSIONS The results of FA indicate that asymmetry is characterized by an increase in the mean FD of the condyle that is responsible for the asymmetry. Fractal analysis can be a valuable diagnostic technique in distinguishing trabecular differences in the condylar areas of asymmetric individuals.
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Affiliation(s)
- Mehmed Taha Alpaydin
- Department of Orthodontics, Faculty of Dentistry, Ordu University, Ordu, Turkiye.
| | | | - Feridun Abay
- Department of Orthodontics, Faculty of Dentistry, Ordu University, Ordu, Turkiye
| | - Yasemin Nur Korkmaz
- Department of Orthodontics, Faculty of Dentistry, Bolu Abant Izzet Baysal University, Bolu, Turkiye
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Arrepia BF, Rocha TG, Medeiros AS, Ferreira MD, Fonseca-Gonçalves A, Visconti MA. The mandibular bone structure in children by fractal dimension and its correlation with pixel intensity values: a pilot study. Oral Radiol 2023; 39:771-778. [PMID: 37368081 DOI: 10.1007/s11282-023-00693-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023]
Abstract
OBJECTIVES To identify a normal pattern of mandibular trabecular bone in children based on the fractal dimension (FD), and its possible correlation with pixel intensity (PI) values, to facilitate the early diagnosis of possible diseases and/or future bone alterations. MATERIALS AND METHODS The 50 panoramic images were selected and divided into two groups, according to the children's age: 8-9 (Group 1; n = 25) and 6-7 (Group 2; n = 25). For FD and PI analyses, three regions of interest (ROIs) were selected, and their mean values were evaluated for each ROI, according to each group, using the t test for independent samples and the model of generalized estimation equations (GEE). Subsequently, these mean values were correlated by the Pearson test. RESULTS Comparing the groups, FD and PI did not differ from each other for any of the measured regions (p > 0.00). It was observed that in the mandible branch (ROI1), FD and PI means were 1.26 ± 0.01 and 81.0 ± 2.50, respectively. In the mandible angle (ROI2), the means were 1.21 ± 0.02 (FD) and 72.8 ± 2.13 (PI); and in the mandible, cortical (ROI3) values of FD = 1.03 ± 0.01 and PI = 91.3 ± 1.75 were obtained. There was no correlation between FD and PI in any of the analyzed ROI (r < 0.285). The FD means of ROI1 and ROI2 did not differ from each other (p = 0.053), but both were different from ROI3 (p < 0.00). All PI values differed from each other (p < 0.00). CONCLUSION The bone trabeculate pattern in 6-9-year-old children presented FD between 1.01 and 1.29. Besides that, there was no significant correlation between FD and PI.
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Affiliation(s)
- Beatriz Fernandes Arrepia
- Department of Pediatric Dentistry and Orthodontics, Dental School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thaiza Gonçalves Rocha
- Department of Pathology and Oral Diagnosis, Dental School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Annie Seabra Medeiros
- Department of Pathology and Oral Diagnosis, Dental School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Matheus Diniz Ferreira
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Andrea Fonseca-Gonçalves
- Department of Pediatric Dentistry and Orthodontics, Dental School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria Augusta Visconti
- Department of Pathology and Oral Diagnosis, Dental School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
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Prado HV, Debossan SAT, Loayza KS, Abreu LG, Brasileiro CB, Borges-Oliveira AC. Radiomorphometric indices and fractal dimension of the mandible in individuals with osteogenesis imperfecta: a matched cross-sectional study. Oral Surg Oral Med Oral Pathol Oral Radiol 2023; 136:102-111. [PMID: 36966060 DOI: 10.1016/j.oooo.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 01/25/2023] [Accepted: 02/04/2023] [Indexed: 02/14/2023]
Abstract
OBJECTIVE The objective was to analyze radiomorphometric indices (RMIs) of mandibular cortical bone and fractal dimension (FD) of trabecular bone of individuals with osteogenesis imperfecta (OI) and compare the findings to those of individuals without OI. METHODS Digital panoramic radiographs of 20 individuals with OI (case group) and 40 individuals without OI (control group) were examined. The RMIs of mandibular cortical index (MCI) and mandibular cortical thickness (MCT) were analyzed. FD of mandibular trabecular bone was calculated bilaterally in 3 regions. The chi-squared test and paired t test were used to compare the significance of differences between the groups. The effect size and minimal clinically important difference (MCID) were also determined. Significance was established at P < .05. RESULTS Categories C2 and C3 of the MCI were more frequent in individuals with OI (P < .001). The Mean MCT was 2.08 ± 0.79 in the OI case group and 2.91 ± 0.60 in the control group (P < .001). Mean FD in the condylar region was significantly lower in the OI case group (P = .002). The effect size for these 2 measures was large, and the difference between groups was greater than the MCID. CONCLUSION Radiographs of individuals with OI exhibited more porosity and diminished thickness of the mandibular cortical bone and lower FD values in the condylar trabecular bone.
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Affiliation(s)
- Heloisa Vieira Prado
- Department of Community and Preventive Dentistry, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | - Suélen Alves Teixeira Debossan
- Department of Community and Preventive Dentistry, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Katherine Silvana Loayza
- Department of Community and Preventive Dentistry, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Guimarães Abreu
- Department of Pediatric Dentistry, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Cláudia Borges Brasileiro
- Department of Oral Pathology and Surgery, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Ana Cristina Borges-Oliveira
- Department of Community and Preventive Dentistry, Faculty of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Ersan N, Özel B. Fractal dimension analysis of different mandibular regions in familial Mediterranean fever patients: A cross-sectional retrospective study. PLoS One 2023; 18:e0288170. [PMID: 37390096 PMCID: PMC10313079 DOI: 10.1371/journal.pone.0288170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/20/2023] [Indexed: 07/02/2023] Open
Abstract
Familial Mediterranean fever (FMF) is a genetic condition that may cause loss of bone mineral density (BMD) due to chronic inflammation. Previously, fractal dimension (FD) analysis values of mandibular cortical bone were shown to be lower in osteoporosis. Therefore, FD might be considered as an auxiliary tool to refer patients for dual-energy x-ray absorptiometry (DXA), which is the gold standard for BMD measurement. The purpose of this cross-sectional retrospective study was to evaluate trabecular and cortical microarchitecture of the mandible with FD analysis on panoramic radiographs in a subpopulation of FMF. Also, the effect of colchicine use was investigated. Forty-three FMF patients, aged between 10.8 and 71.2 years, and age- and gender-matched control group consisting of patients, who had no systemic diseases, were included. Demographic information such as age and gender, and colchicine use were recorded. In terms of age, the patients were classified as <30 and 30< years. On each panoramic radiographs five regions of interest were selected on the mandible as: 1- premolar, 2- molar, 3- angular, 4- condylar, and 5- basal cortical bone regions on right (R) and left (L) sides. Statistical significance was accepted at p<0.05 level. Intra- and inter-observer agreements demonstrated good to excellent consistency. In FMF patients, L3 and L4 values were higher, whereas L5 values were lower (p<0.05) than the control group. In terms of age, the difference between groups was insignificant in FMF patients (p>0.05), whereas in control group R3 and L4 values were higher in the 30< age group (p<0.05). Regarding gender and colchicine use, the difference between groups was insignificant (p>0.05). FMF disease might be a candidate for referral to DXA examination based on decreased bone density in the mandibular cortex detected by FD measurements on routine panoramic radiographs. Further studies are warranted to ascertain this relationship.
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Affiliation(s)
- Nilüfer Ersan
- Yeditepe University Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Istanbul, Turkiye
| | - Beliz Özel
- Yeditepe University Faculty of Dentistry, Department of Endodontics, Istanbul, Turkiye
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Evaluation of bone changes on dental panoramic radiography using mandibular indexes and fractal dimension analysis in children with familial Mediterranean fever. Oral Radiol 2023; 39:312-320. [PMID: 35854189 DOI: 10.1007/s11282-022-00639-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 07/03/2022] [Indexed: 10/17/2022]
Abstract
AIM It was aimed to evaluate the bone microarchitecture of children with FMF in the city of Tokat, where the disease is highly prevalent, in Turkey, one of the countries where familial Mediterranean Fever (FMF) disease is the most common, using mandibular indexes and fractal dimension analysis on panoramic radiography. METHODS In this retrospective study, the results were evaluated and compared using the mandibular cortical index (MCI), the mental index (MI), the panoramic mandibular index (PMI), and the fractal dimension analysis of six different regions (condyle, angulus, and interdental) on dental panoramic radiographs in 124 children with FMF and 124 healthy children. The data were analyzed using the IBM SPSS V23. RESULTS The distribution of MCI in children with FMF was similar to the control group (p > 0.05). The mean MI (3.59) values in FMF patients were statistically higher than the control group (p = 0.016). No statistically significant difference was found in PMI between the patients with FMF and the control group (p > 0.05). No statistically significant difference was found between the mean fractal dimension (FD) values according to the groups (p > 0.05). CONCLUSION Trabecular bone microarchitecture of children with FMF is similar to healthy children. There is no correlation between the duration of colchicine use and bone microarchitecture.
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Saraç F, Şengül F, Çelikel P, Saraç İ, Baş A, Derelioğlu SŞ. Morphologic Mandibular Bone Changes on Panoramic Radiographs of Children and Adolescents with Congenital Heart Disease. CHILDREN (BASEL, SWITZERLAND) 2023; 10:children10020227. [PMID: 36832356 PMCID: PMC9954730 DOI: 10.3390/children10020227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/17/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023]
Abstract
Congenital heart disease (CHD) has effects on growth and development. However, information on how the structure of the mandibular bone is affected is limited. In the present study, we aim to compare mandibular bone structures of children affected with CHD and healthy ones through the fractal analysis method and radiomorphometric indices based on panoramic radiographs. The study consisted of 80 children (20 with cyanotic CHD, 20 with acyanotic CHD, 40 control) who were diagnosed with CHD and were treated through interventional therapy or followed up through medical therapy. Fractal dimension (FD) was performed in three different areas (angulus, corpus, and interdental bone) on 80 panoramic radiographs. Additionally, we assessed various radiomorphometric indices: mandibular cortical width (MCW), panoramic mandibular index (PMI), mandibular cortical index (MCI), and simple visual estimation (SVE). p < 0.05 was accepted as statistically significant in the analysis. Values of mean MCW, PMI, MCI, SVE, and FD measurements in children affected with CHD were found to be similar to the control group, regardless of whether they were cyanotic or acyanotic (p > 0.05). In this study, fractal analysis and radiomorphometric indices revealed no trabecular structure and mineral density changes in mandibular bone of children and adolescents with CHD compared to healthy subjects.
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Affiliation(s)
- Fatma Saraç
- Department of Pedodontics, Faculty of Dentistry, Ataturk University, 25240 Yakutiye, Turkey
| | - Fatih Şengül
- Department of Pedodontics, Faculty of Dentistry, Ataturk University, 25240 Yakutiye, Turkey
- Correspondence:
| | - Periş Çelikel
- Department of Pedodontics, Faculty of Dentistry, Ataturk University, 25240 Yakutiye, Turkey
| | - İbrahim Saraç
- Department of Cardiology, Erzurum Education and Research Hospital, University of Health Sciences, 25240 Erzurum, Turkey
| | - Aybike Baş
- Department of Pedodontics, Faculty of Dentistry, Ataturk University, 25240 Yakutiye, Turkey
| | - Sera Şimşek Derelioğlu
- Department of Pedodontics, Faculty of Dentistry, Ataturk University, 25240 Yakutiye, Turkey
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Magnetic resonance imaging and fractal analysis findings in temporomandibular joints with disk perforation. Oral Surg Oral Med Oral Pathol Oral Radiol 2023:S2212-4403(23)00002-0. [PMID: 36890079 DOI: 10.1016/j.oooo.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 12/23/2022] [Accepted: 01/01/2023] [Indexed: 01/11/2023]
Abstract
OBJECTIVE This study compared magnetic resonance imaging (MRI) findings and fractal dimension (FD) values in the temporomandibular joints (TMJs) of study patients with disk perforation vs control patients. STUDY DESIGN Of 75 TMJs examined with MRI for characteristics of the disk and condyle, 45 were included in the study group and 30 in the control group. MRI findings and FD values were compared for significance of differences between the groups. The frequency of subclassifications was analyzed for differences between the two forms of disk configuration and grades of effusion. Mean FD values were analyzed for differences among subclassifications of MRI findings and between groups. RESULTS Examination of MRI variables revealed that the study group had significantly greater frequencies of flattened disks, disk displacement, flattening and combined defects in condylar morphology, and grade 2 effusion (P = .001) Joints with perforated disks had a large percentage of normal disk-condyle relationships (73.3%). Significant differences were discovered between biconcave and flattened disk configuration in the frequencies of internal disk status and condylar morphology. FD values of all patients varied significantly among the subclassifications of disk configuration, internal disk status, and effusion. Mean FD values were significantly lower in the study group with perforated disks (1.07) compared with the control group (1.20, P = .001). CONCLUSIONS MRI variables and FD can be useful in investigating intra-articular TMJ status.
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Evaluation of chronic renal failure with cone beam computed tomography radiomorphometric indices and fractal analysis in the mandible. Oral Radiol 2023; 39:133-142. [PMID: 35484445 DOI: 10.1007/s11282-022-00614-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 04/08/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVES The purpose of this study is to evaluate the mandibular bone structure of patients with chronic renal failure (CRF) and compare to control group via the fractal analysis (FA) and radiomorphometric indices in the cone beam computed tomography (CBCT) images. METHODS Three observers retrospectively investigated 44 CBCT images to compare patients with CRF to healthy controls. FA was performed in two different areas, volume of interests (VOI) were chosen in the mandibular ramus and corpus. The CT cortical index (CTCI), CT mental index (CTMI), and CT mandibular index (CTI) were performed to determine cortical porosity and thickness. The normality distribution of numerical data was tested using the Kolmogorov-Smirnova and Shapiro-Wilk tests. According to the results, the Mann-Whitney U test and independent group t test were used for parameters. The chi-square test was used to evaluate the distribution of categorical variables by groups. RESULTS There were statistically significant differences in VOI1 and VOI2. The fractal dimension (FD) values in VOI1 and VOI2 were significantly lower in study group. There were no significant differences in CTCI, CTMI and CTI measurements between both groups. CONCLUSIONS CRF is a prevalent cause of radiographic abnormalities in jawbones. The FD values in trabecular bone decreased in study group, although there were no significant differences in the radiomorphometric indices. FA in CBCT images could be useful for a three-dimensional evaluation of trabecular bone structure.
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Zihni Korkmaz M, Yemenoğlu H, Günaçar DN, Ustaoğlu G, Ateş Yildirim E. The effects of vitamin D deficiency on mandibular bone structure: a retrospective radiological study. Oral Radiol 2023; 39:67-74. [PMID: 35277812 PMCID: PMC8916492 DOI: 10.1007/s11282-022-00602-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 02/21/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVE The aim of the study was to evaluate the effects of vitamin D deficiency on the mandibular bone structure by fractal analysis and panoramic morphometric indices. METHODS Ninety participants were divided into three groups as 30 individuals with severe vitamin D deficiency, 30 individuals with vitamin D deficiency, and 30 individuals with vitamin D sufficiency. Fractal dimension analysis (FD), panoramic mandibular index (PMI), mandibular cortical index (MCI), and mandibular cortical thickness measurement (CTM) were evaluated on panoramic radiographs. RESULTS FD values of the patients with vitamin D deficiency were found to be statistically lower than the patients with vitamin D sufficiency (p < 0.05). FD value of supracortical area above the angulus mandible (FD2) in patients with severe vitamin D deficiency was significantly lower than FD values (p = 0.002). There was no statistically significant difference between the groups in the CTM (p > 0.05). PMI was significantly lower in patients with severe vitamin D deficiency (p < 0.001). There was a significant difference in MCI values between the groups (p < 0.05). CONCLUSION Vitamin D deficiency causes a decrease in bone mineral density in the mandible, and an increase in alveolar porosity. FD analysis and radiomorphometric indices in panoramic radiographs can be used to assess osteoporotic changes in patients with vitamin D deficiency.
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Affiliation(s)
- Meltem Zihni Korkmaz
- Faculty of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, TR-53100, Rize, Turkey.
| | - Hatice Yemenoğlu
- Faculty of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, TR-53100, Rize, Turkey
| | - Dilara Nil Günaçar
- Faculty of Dentistry, Department of Oral and Maxillofacial Radiology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Gülbahar Ustaoğlu
- Faculty of Dentistry, Department of Periodontology, Abant İzzet Baysal University, Bolu, Turkey
| | - Esra Ateş Yildirim
- Faculty of Dentistry, Department of Periodontology, Abant İzzet Baysal University, Bolu, Turkey
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16
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Akyol R, Şirin Sarıbal G, Amuk M. Evaluation of mandibular bone changes in multiple myeloma patients on dental panoramic radiographs. Oral Radiol 2022; 38:575-585. [PMID: 35132575 DOI: 10.1007/s11282-022-00590-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/17/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The aim of this study is to assess the mandibular bone structures of multiple myeloma (MM) patients on panoramic radiographs using fractal analysis (FA) and radio-morphometric indices. METHODS The study group consisted of 67 MM patients, and the control group consisted of 67 individuals without any systemic disease. The mandibular cortical index (MCI) classification, antegonial index (AGI), gonial index (GI), mandibular cortical width (MCW), panoramic mandibular index (PMI) and fractal dimensions (FD) were evaluated on panoramic radiographs. FD measurements were made by identifying 4 related areas. Shapiro-Wilk test was used to determine the normal distribution of the data. Chi-square and independent t tests were used to compare the findings between the two groups. RESULTS The FD values of the study group in ROI1, ROI2, ROI3, ROI4 regions and GI values were found to be statistically significantly lower than the control group (p < 0.001). There was no statistically significant difference between the two groups in terms of AGI, MCW and PMI values (p > 0.05). While C1 was the most common type in the control group, C2 was the most common type in the study group. C2 and C3 were detected more in the study group than in the control group (p < 0.001). CONCLUSION Our study showed a consensus with the studies advocating that fractal analysis and radio-morphometric indices are methods that can be used to determine mandibular bone density. The low bone density of MM patients is a condition that physicians should be aware of for interventional dental procedures.
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Affiliation(s)
- Rıdvan Akyol
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Erciyes University, 38039, Kayseri, Turkey.
| | - Gamze Şirin Sarıbal
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Erciyes University, 38039, Kayseri, Turkey
| | - Mehmet Amuk
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Erciyes University, 38039, Kayseri, Turkey
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17
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Sinanoglu A, Cakir Karabas H, Soluk Tekkesin M, Bektas Kayhan K, Coskunses FM, Ozcan I. Does Fractal Analysis Have a Role in Diagnosis of Langerhans Cell Histiocytosis? J Oral Maxillofac Surg 2022; 80:1852-1857. [PMID: 35988692 DOI: 10.1016/j.joms.2022.07.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/18/2022]
Abstract
PURPOSE Langerhans cell histiocytosis (LCH) of the jaws is a rare disease and is often diagnosed at an advanced stage. This study aims to assess the trabecular pattern of jaws via fractal analysis (FA) on initial panoramic radiographs (OPG) of the patients with LCH to facilitate interpretation of the radiographic changes. METHODS A case-control study investigated LCH cases with jaw involvement retrieved from the databases of Istanbul and Kocaeli Universities between 2010 and 2021. Initial OPGs of LCH cases and OPGs of healthy sex- and age-matched controls were investigated with FA. All images were assessed using ImageJ software. On each OPG, a total of 6 regions of interest (ROIs) located on the mandible were investigated bilaterally. The independent variables were the trabecular patterns of jaws of LCH cases and their control matches. The outcome variables were the fractal dimension (FD) values obtained from the ROIs on OPGs. Data were analyzed using the Mann-Whitney U test and Student's t test. RESULTS Fifteen LCH-control pairs were investigated. In one ROI located in the supracortical area above the left mandibular angle, FD values of LCH cases (1.273 ± 112.8) were significantly lower than controls (1.308 ± 85.3; P < .05). Lower FD values were also calculated for some of the remaining ROIs, but there was no significant difference between groups (P > .05). CONCLUSIONS Regarding our results, FA was not a useful parameter to discern radiographical trabecular changes between LCH cases and controls. Multicenter studies with larger populations are needed to investigate the potential of FA in the identification of this rare disease.
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Affiliation(s)
- A Sinanoglu
- Chair and Associate Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Kocaeli University, Kocaeli, Turkey.
| | - H Cakir Karabas
- Assistant Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - M Soluk Tekkesin
- Professor, Department of Tumor Pathology, Institute of Oncology, Istanbul University, Istanbul, Turkey
| | - K Bektas Kayhan
- Associate Professor, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - F M Coskunses
- Private Practitioner, Oral and Maxillofacial Surgery, Kocaeli, Turkey
| | - I Ozcan
- Chair and Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
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18
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Ersu N, Akyol R, Etöz M. Fractal properties and radiomorphometric indices of the trabecular structure of the mandible in patients using systemic glucocorticoids. Oral Radiol 2022; 38:252-260. [PMID: 34213705 DOI: 10.1007/s11282-021-00552-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/27/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The aim of this study is to evaluate the mandibular trabecular and cortical bone structure of patients using systemic glucocorticoid (GC) and compare to control group with the fractal analysis (FA) and radiomorphometric indices. METHODS Two researchers retrospectively investigated 192 dental panoramic radiographs to compare individuals using systemic GCs to healthy controls. FA was performed in 4 different regions; geometrical center of the mandibular ramus (ROI1), cancellous bone on supracortical mandibular angle area inferior to the mandibular canal (ROI2), cancellous bone on mesial to the mental foramen (ROI3), basal cortical bone extending mental foramen to the first molars' distal root in the mandibular corpus (ROI4). Panoramic mandibular index (PMI), mandibular cortical width (MCW) and mandibular cortical index (MCI) were performed for evaluate cortical thickness and porosity. The Shapiro-Wilk test was used to determine the normal distribution of the data, the independent t test for comparison of values and the chi-square test for descriptive statistics. RESULTS There were statistically significant differences in ROI4 and MCW. The fractal dimension (FD) values in ROI4 and MCW were significantly lower in study group. There were no significant differences in FD values in ROI1, ROI2, ROI3 and PMI and MCI measurements between both groups. CONCLUSIONS FA and radiomorphometric measurements is an efficient method to detect early changes in bone mass. In our study, ROI4 and MCW were significantly lower in study group. Osteoporosis prevention should be considered in patients using systemic GCs.
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Affiliation(s)
- Nihal Ersu
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Erciyes University, 38039, Kayseri, Turkey.
| | - Rıdvan Akyol
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Erciyes University, 38039, Kayseri, Turkey
| | - Meryem Etöz
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Erciyes University, 38039, Kayseri, Turkey
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Karadag I, Yilmaz HG. Evaluation of change in trabecular bone structure surrounding dental implants by fractal dimension analysis and comparison with radiomorphometric indicators: a retrospective study. PeerJ 2022; 10:e13145. [PMID: 35341061 PMCID: PMC8953503 DOI: 10.7717/peerj.13145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 03/01/2022] [Indexed: 01/12/2023] Open
Abstract
Background The trabecular bone surrounding dental implant show some structural changes during healing period. The purpose of this study is to observe the change in trabecular bone with fractal dimensional analysis from baseline to 3rd month of implant placement. It was also aimed to determine the correlation of fractal dimension (FD) change with morphometric indices, mandibular cortical index (MCI) and mandibular cortical width (MCW). Methods Digital panoramic radiographs taken from 14 patients were evaluated in this study. A total of 30 implants which were placed on mandibular premolar or molar region were included. MCI and MCW assessments were made on baseline radiograph and FD were analyzed on baseline and 3rd month radiograph. FD change by time was recorded separately for every ROI. A paired sample t-test was used to evaluate the change between FD-baseline and FD-3rdmonth values. One-way ANOVA was used to determine the relationship between FD change and MCI. FD change and MCW measurements correlation was calculated by Pearson correlation analysis. Results FD value increased in 75 of 90 implant-adjacent regions evaluated in the 3rd month and it was observed that the FD values were statistically significantly increased in the mesial, distal and apical regions at the 3rd month measurements. There was no statistically significant relationship between mean FD change and MCI, and there was no correlation between mean FD change and MCW value. Discussion There are many studies evaluating the resorptive changes in bone. However, there are few studies investigating whether there is a correlation between pre- and post-operative trabecular pattern with MCI and MCW. The results of this study indicate that the implants have an improving effect on bone trabeculation in the region where they are placed.
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Affiliation(s)
- Ilkim Karadag
- Faculty of Dentistry Department of Periodontology, Ankara University, Ankara, Turkey
| | - Hasan Guney Yilmaz
- Faculty of Dentistry Department of Periodontology, Near East University (Cyprus), Mersin, Turkey
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20
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Memiş S. Evaluation of the effects of prolotherapy on condyles in temporomandibular joint hypermobility using fractal dimension analysis. J Korean Assoc Oral Maxillofac Surg 2022; 48:33-40. [PMID: 35221305 PMCID: PMC8890968 DOI: 10.5125/jkaoms.2022.48.1.33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/24/2021] [Accepted: 01/03/2022] [Indexed: 11/12/2022] Open
Abstract
Objectives Prolotherapy is a method that has gained popularity in recent years and has been reported to have positive short-term and long-term clinical results in maxillofacial surgery, especially temporomandibular joint (TMJ) hypermobility. This study aimed to evaluate the changes in the trabecular structure of mandibular condyles in patients who underwent prolotherapy due to TMJ hypermobility using the fractal analysis method. Materials and Methods Forty-five patients who received dextrose prolotherapy at a concentration of 20% and fifteen control patients were included in the study. All patients had panoramic radiographs just before (T0) and six months after treatment (T1). The patients who received treatment were divided into three groups according to the number of prolotherapy injections. The regions of interest were selected from bone areas close to the articular surfaces of the condyles. The fractal dimension (FD) values were calculated. Results The main effect of time on the FD value was significant [F (1, 56)=86.176, P<0.001]. This effect was qualified by a significant time×group interaction effect [F (3, 56)=9.023, P<0.001]. The decreases in FD values in all treatment groups between T0 and T1 times were significant (P=0.004). However, changes in FD values were not significant in the control group (P=0.728). Conclusion Dextrose prolotherapy without the effect of the number of injections caused a decrease in FD values in the mandibular condyles over time.
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Affiliation(s)
- Sadi Memiş
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Kocaeli University, Kocaeli, Turkey
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21
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Günaçar DN, Yemenoğlu H, Ustaoğlu G, Arıöz Ö. Effects of hyperlipidemia on trabecular and cortical structures of the mandible. Dentomaxillofac Radiol 2022; 51:20210214. [PMID: 34283651 PMCID: PMC8802705 DOI: 10.1259/dmfr.20210214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVES To evaluate the mandibular bone structure of patients with hyperlipidemia by fractal dimension (FD) analysis and panoramic radiomorphometric indices including mandibular cortical thickness measurement, panoramic mandibular index (PMI), mandibular cortical index (MCI) and to compare with the healthy group. METHODS In total, 60 panoramic radiographs were included, including panoramic radiographs of 30 individuals with hyperlipidemia and 30 individuals with systemically healthy. FD analysis in the mandibular condyle, angle of the mandible, the distal side of the second premolar and anterior to mental foramen, PMI, MCI, and mandibular cortical thickness measurements were evaluated on radiographs. Independent samples t-test was used for differences between healthy and hyperlipidemia groups with regard to age and PMI. Repeated measurement of variance with one within and one between factors in the comparison of four regions and two groups in terms of FD and cortical thickness measurements. Following this analysis, significant differences were detected by post-hoc Sidak test. Fisher-Freeman-Halton analysis was applied to determine the relationship between categorical variables. RESULTS FD values of the hyperlipidemic patients were found to be lower than the healthy group. Between the hyperlipidemic and healthy groups, there was a difference in the angle of the mandible FD values (p = 0.020). There were no differences in the cortical thickness measurements and PMI between the groups (p > 0.05). There was a difference in MCI values between the groups (p < 0.05). CONCLUSION The trabecular structure of the angle of the mandible and the cortical bone structure of the mandible were found to be negatively affected by hyperlipidemia.
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Affiliation(s)
- Dilara Nil Günaçar
- Oral and Maxillofacial Radiology Department, Recep Tayyip Erdoğan University, Faculty of Dentistry, Rize, Turkey
| | - Hatice Yemenoğlu
- Periodontology Department, Recep Tayyip Erdoğan University, Faculty of Dentistry, Rize, Turkey
| | - Gülbahar Ustaoğlu
- Periodontology Department, Abant İzzet Baysal University, Faculty of Dentistry, Bolu, Turkey
| | - Özkan Arıöz
- Periodontology Department, Abant İzzet Baysal University, Faculty of Dentistry, Bolu, Turkey
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22
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Vadiati Saberi B, Khosravifard N, Nooshmand K, Dalili Kajan Z, Ghaffari ME. Fractal analysis of the trabecular bone pattern in the presence/absence of metal artifact-producing objects: Comparison of cone-beam computed tomography with panoramic and periapical radiography. Dentomaxillofac Radiol 2021; 50:20200559. [PMID: 33705225 DOI: 10.1259/dmfr.20200559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The effect of metallic objects on the fractal dimension (FD), bone area fraction (BAF) and gray scale values (GSVs) of cone-beam CT (CBCT) images was assessed. Also, FD, BAF and GSV were compared among CBCT, digital periapical and panoramic radiographies. METHODS Digital periapical and panoramic radiographs were acquired from six blocks of bovine rib. Additionally, different arrangements of titanium implants and intracanal metallic posts were created in the bone blocks and CBCT scans were taken from the different implant-root arrangements. The three radiographical modalities were compared by analysis of variance. Pairwise comparisons between the modalities were performed by the Tukey test (significance level set at 0.05). RESULTS Different root-implant arrangements in the CBCT images revealed no significant differences in the FD (p = 0.920), BAF and GSV values (p = 0.623). FD differed significantly among the three modalities (p < 0.001). Significant differences were found between CBCT and each of the periapical and panoramic techniques (p < 0.001), while no remarkable differences were observed in the FD of the periapical and panoramic images (p = 0.294). BAF and GSV showed significantly different results among the three radiographical techniques (p < 0.001). The difference was remarkable between CBCT and periapical (p < 0.001), CBCT and panoramic (p < 0.001) and periapical and panoramic (p = 0.008). CONCLUSION Presence of titanium implants and intracanal posts does not produce different results in the fractal analysis (FA) of the CBCT images. The trabecular bone pattern is best assessed by FA of the periapical radiographs followed by the panoramic and CBCT techniques, respectively.
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Affiliation(s)
- Bardia Vadiati Saberi
- Department of Periodontics, Dental Sciences Research Center, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Negar Khosravifard
- Department of Maxillofacial Radiology, Dental Sciences Research Center, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Kowsar Nooshmand
- Department of Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Zahra Dalili Kajan
- Department of Maxillofacial Radiology, Dental Sciences Research Center, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Mohammad Ebrahim Ghaffari
- Department of Biostatistics, Dental Sciences Research Center, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
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Türkmenoğlu A, Yüksel HT, Karahan AY. Evaluation of mandibular condyle trabecular structure in patients with rheumatoid arthritis using fractal analysis. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 133:229-237. [PMID: 34526250 DOI: 10.1016/j.oooo.2021.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/07/2021] [Accepted: 08/14/2021] [Indexed: 01/17/2023]
Abstract
OBJECTIVES The aim of this study was to compare the fractal dimension (FD) of trabecular structure of the mandibular condyles in patients with rheumatoid arthritis (RA) to patients without RA. Correlations between condylar FD and bone mineral density T-scores in the femoral neck and lumbar spine were also examined. STUDY DESIGN The RA study group patients were divided into 3 categories (33 normal, 33 osteopenic, and 34 osteoporotic) according to T-scores. The control group without RA was sex- and age-matched with the study group. FD was calculated from panoramic radiographs and compared between the study and control groups. The relationships between FD values and femoral neck and L1-L4 lumbar spine T-scores were investigated for study and control groups. Significance was established at P < .05. RESULTS The mean FD values of the entire study group and of each category in the study group were significantly lower than those of the control group (P < .001). There were no significant differences in FD values among the 3 RA categories (P > .05). No significant correlations appeared between FD and femoral neck or lumbar spine T-scores (P ≥ .063). CONCLUSIONS Fractal analysis of the condyles on panoramic radiographs can distinguish RA from healthy condyles, even if the patients with RA have normal bone mineral density T-scores.
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Affiliation(s)
- Ayşegül Türkmenoğlu
- Lecturer, Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Usak University, Uşak, Turkey.
| | - Halil Tolga Yüksel
- Assistant Professor, Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Usak University, Uşak, Turkey
| | - Ali Yavuz Karahan
- Associate Professor, Department of Physical Medicine and Rehabilitation, Training and Research Hospital, Faculty of Medicine, Usak University, Uşak, Turkey
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Tosun S, Karataslioglu E, Tulgar MM, Derindag G. Retrospective fractal analyses of one-year follow-up data obtained after single-visit nonsurgical endodontic retreatment on periapical radiographs. Clin Oral Investig 2021; 25:6465-6472. [PMID: 34302217 DOI: 10.1007/s00784-021-04079-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 07/12/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVES The aim of retrospective study was to evaluate the changes to the periapical bone sites after non-surgical endodontic retreatment by using fractal analysis on periapical radiographs. MATERIALS AND METHODS Thirty patients whose teeth had periapical lesions and underwent primary endodontic treatment were selected for nonsurgical single-visit endodontic retreatment. Two radiographs were taken, the first immediately after retreatment and the second at the 1-year follow-up. An identical region of interest close to the infected root apex was selected from each radiograph. FD was measured using the box-counting method. Periapical status was evaluated using the periapical index (PAI). Treatment outcomes were categorized into healed (PAI < 3), or not healed (PAI ≥ 3) based on radiographic criteria. RESULTS The mean FD value significantly increased at the 1-year follow-up compared to baseline. No significant sex biases were apparent. According to the PAI, retreatment after 1 year resulted in a 63.3% healed. CONCLUSION The extent of periapical trabecular bone evident radiographically increased, as revealed by FD data, 1 year after endodontic retreatment. Clinical relevance The use of fractal analysis as a quantitative method to evaluate changes in periapical trabecular bone (such as healing and inflammation) after endodontic retreatment can be an important marker in determining the prognosis of endodontic retreatment.
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Affiliation(s)
- Samet Tosun
- Department of Endodontics, Faculty of Dentistry, Pamukkale University, 20160, Pamukkale, Denizli, Turkey.
| | - Emrah Karataslioglu
- Department of Endodontics, Faculty of Dentistry, Katip Çelebi University, 35300, İzmir, Turkey
| | - Mustafa Mert Tulgar
- Department of Endodontics, Faculty of Dentistry, Katip Çelebi University, 35300, İzmir, Turkey
| | - Gözde Derindag
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Pamukkale University, 20160, Denizli, Turkey
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Akan B, Ünlü Kurşun B. Structural changes in the trabecular bone of the mandibular condyle of growing patients with sagittal jaw discrepancy treated with the twin-block appliance. Orthod Craniofac Res 2021; 25:142-149. [PMID: 34236758 DOI: 10.1111/ocr.12516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 06/30/2021] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The objective of this study was to evaluate the structural changes in the trabecular bone of the mandibular condyles in patients treated with the Twin-block functional orthopaedic appliance that act by promoting condylar growth and to compare the fractal dimension (FD) of condylar trabecular bone structure prior to treatment (T0) and after orthopaedic functional treatment (T1). SETTING AND SAMPLE POPULATION This retrospective study included panoramic images of 112 individuals with a mean age of 11.04 ± 1.30 years in the study group (32 girls and 24 boys) and 11.6 ± .80 years in the control group (29 girls and 27 boys). MATERIALS AND METHODS The standardized region of interest was selected as the right and left condylar areas close to the articulation surfaces from the twin-block (TB) group, which included patients who completed functional orthopaedic treatment and the control group, which included untreated individuals. FD values in the condylar region were analysed from the panoramic radiographs of both groups using a box-counting method with ImageJ software (version 1.52a, US National Institutes of Health). RESULTS There was a significant decrease in the FD values of the right (-.038) and left (-.022) condylar region at T0 and T1 in the TB group. Between-group FD comparisons demonstrated that the TB group showed changes in the condylar region (right, P = .004; left, P = .022) compared to the control group. CONCLUSION Functional orthopaedic forces caused a decrease in the trabecular structure of the condylar area examined.
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Affiliation(s)
- Burçin Akan
- Department of Orthodontics, Faculty of Dentistry, Izmir Katip Celebi University, Izmir, Turkey
| | - Begüm Ünlü Kurşun
- Department of Prosthetic Dentistry, Faculty of Dentistry, Izmir Katip Celebi University, Izmir, Turkey
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Öztürk Kocak AT, Göller Bulut D. Measurement of the trabecular bone structure of the TMJ region in patients with transverse maxillary deficiency: a CBCT fractal analysis study. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 132:352-360. [PMID: 34210640 DOI: 10.1016/j.oooo.2021.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/05/2021] [Accepted: 05/11/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This study aimed to evaluate the effect of transverse maxillary deficiency on condylar morphology via visual examination and fractal analysis of cone beam computed tomography (CBCT) scans. STUDY DESIGN In total, 97 patients with posterior crossbite or maxillary narrowness and 36 control patients were included. The presence of degenerative changes in the bilateral condyles was evaluated with CBCT. Fractal dimension (FD) was calculated on the condylar images using ImageJ. RESULTS Degenerative bone changes were discovered in 38 of the 133 scans (28.6%). There was no significant difference between the groups in terms of the incidence of degenerative changes for either the right or left sides (P ≥ .670). In coronal sections and in mean measurements, FD was significantly lower in the control group compared with the other groups in the right condyle (P ≤ .031). No significant differences were found between the mean FD values of the condyles with degenerative bone changes or the mean FD values of the normal condyles (P ≥ .256). CONCLUSIONS In the presence of maxillary transverse deficiencies, degenerative bone changes in the mandibular condyle were not significantly different, but the FD of the right condyle was found to be higher compared with the control group.
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Affiliation(s)
- Ayşe Tuğçe Öztürk Kocak
- Department of Oral and Maksillofacial Radiology, Faculty of Dentistry, Bolu Abant İzzet Baysal University, Bolu, Turkey.
| | - Duygu Göller Bulut
- Department of Oral and Maksillofacial Radiology, Faculty of Dentistry, Bolu Abant İzzet Baysal University, Bolu, Turkey
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Gonca M, Gunacar DN, Kose TE, Karamehmetoglu I. Evaluation of mandibular morphologic measurements and trabecular structure among subgroups of impacted mandibular third molars. Oral Radiol 2021; 38:63-71. [PMID: 33870446 DOI: 10.1007/s11282-021-00527-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/08/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To investigate mandibular morphologic measurements and trabecular structures that may cause mandibular third molar (MM3) impaction according to MM3 subgroups. METHODS A total of 150 MM3 of 2175 panoramic radiographs (PRs) were reviewed. MM3s according to Winter (vertical), Pell & Gregory Class 1 and group: A, B, C on PRs were included in the study group. Fractal dimensions (FD) and mandibular morphologic measurements were evaluated. Statistical analysis for parametric values was performed using one-way analysis of variance (ANOVA). Statistical analysis for non-parametric values was performed using the Kruskal-Wallis H test. RESULTS Statistically, a significant difference was found only in terms of angle of impaction among the groups of MM3 (p < 0.05) [Winter (vertical), and Pell & Gregory Class 1 and group A, B, C]. There was no difference among groups A, B, C in mandibular morphology and trabecular structure, but group C showed different characteristics than the other groups only in terms of impaction angle. CONCLUSION The trabecular structure and morphometric properties except for the angle of impaction do not affect impacted MM3s with adequate retromolar space and vertical angle.
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Affiliation(s)
- Merve Gonca
- Department of Orthodontics, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey.
| | - Dilara Nil Gunacar
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Taha Emre Kose
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Irem Karamehmetoglu
- Department of Orthodontics, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey
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Cesur E, Bayrak S, Kursun-Çakmak EŞ, Arslan C, Köklü A, Orhan K. Evaluating the effects of functional orthodontic treatment on mandibular osseous structure using fractal dimension analysis of dental panoramic radiographs. Angle Orthod 2021; 90:783-793. [PMID: 33378509 DOI: 10.2319/012020-39.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Accepted: 05/01/2020] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE To evaluate the effects of functional appliance treatment on mandibular trabecular structure using fractal dimension (FD) analysis of dental panoramic radiographs. MATERIALS AND METHODS This study was conducted using digital panoramic radiographs of 45 patients with Class II malocclusion treated with functional appliances (treatment group, mean age: 11.39 ± 0.97 years; 23 girls, 22 boys) acquired before (T0) and after (T1) treatment and the panoramic radiographs of 45 control subjects who had undergone no orthodontic treatment (control group, mean age: 11.31 ± 0.87 years; 23 girls, 22 boys). FD values in the condylar process, mandibular corpus, and mandibular angle were analyzed from the panoramic radiographs of both groups. RESULTS Analysis of changes in FD between T0 and T1 revealed significant increases in the FD values of the right and left condylar processes and right mandibular corpus in the treatment group (P < .001) and in the right condylar process in the control group (P < .05). Between-group comparisons demonstrated that the treatment group showed greater changes in the condylar process (right, P < .001; left, P < .05) and right mandibular corpus (P < .05) compared to controls. Correlation analysis between the cephalometric and FD changes in the treatment group showed the right condylar process changes were negatively correlated with GoGn/SN angle (P < .05) and positively correlated with Co-Go (P < .05), although these correlations were weak. CONCLUSIONS FD analysis demonstrated significant changes in trabeculation of the condyle and mandibular corpus in the treatment group compared to the control group. Functional appliance treatment may lead to skeletal correction by altering skeletal form and trabeculation of the mandibular bone.
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Uğur Aydın Z, Ocak MG, Bayrak S, Göller Bulut D, Orhan K. The effect of type 2 diabetes mellitus on changes in the fractal dimension of periapical lesion in teeth after root canal treatment: a fractal analysis study. Int Endod J 2020; 54:181-189. [PMID: 32931021 DOI: 10.1111/iej.13409] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/08/2020] [Indexed: 01/07/2023]
Abstract
AIM This single-centre retrospective case-control study evaluated fractal dimension (FD) changes in radiographs of periapical lesions using a fractal analysis in healthy individuals and type 2 diabetes mellitus (DM) patients following root canal treatment. METHODOLOGY The study data consisted of two groups: the DM group which contained a total of 46 mandibular molar teeth in 37 patients with no systemic disease other than type 2 DM, and the control group which contained a total of 52 mandibular molar teeth in 41 patients without systemic disease. Periapical radiographs were obtained prior to root canal treatment and 1 year post-treatment. Fractal analysis was performed by selecting a region of interest on the periapical radiographs. For both groups, the FD changes in lesion area were calculated and compared. In addition, periapical status was evaluated using the periapical index (PAI) scores on periapical radiographs for both groups. Data were analysed using dependent-sample t-test, independent-sample t-test, Wilcoxon signed-rank test and Mann-Whitney U-test. RESULTS In both groups, FD values were increased significantly 1 year post-treatment as compared with those prior to treatment (P < 0.05). The time-dependent increase in FD was significantly greater in the control group (P < 0.05). Time-dependent increases in FD did not differ between genders (P > 0.05). There was a significant decrease in PAI scores in both type 2 DM and control groups depending on time (P < 0.05). No significant difference was found between the groups in terms of time-related decreases in PAI scores (P > 0.05). CONCLUSION An increase in the FD of the periapical lesion area was observed 1 year after root canal treatment. DM had a negative effect on FD increase.
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Affiliation(s)
- Z Uğur Aydın
- Department of Endodontics, Faculty of Dentistry, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - M G Ocak
- Department of Endodontics, Faculty of Dentistry, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - S Bayrak
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - D Göller Bulut
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - K Orhan
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara, Turkey.,Ankara University Medical Design Application and Research Center (MEDITAM), Ankara, Turkey
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Movahhedian N, Akbarizadeh F, Khojastepour L, Sardarian AR, Pakshir HR, Ahrari F. Assessment of mandibular characteristics in patients affected with β-thalassaemia major: A retrospective case-control study. Int Orthod 2020; 18:776-783. [PMID: 32768291 DOI: 10.1016/j.ortho.2020.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/26/2020] [Accepted: 06/26/2020] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Thalassemia is the most common hereditary blood disorder across the world. This study aimed to identify some mandibular features of thalassaemic patients and compare them with unaffected counterparts. MATERIAL AND METHODS This retrospective case-control study was carried out on lateral cephalograms of 60 subjects (26 males, 34 females) with class II malocclusion and age range of 11 to 15 years. The control group consisted of 60 non-thalassaemic subjects with class II malocclusion and similar chronological age, gender and vertical facial dimension. Based on the Jarabak index, the case and control subjects were classified into hyperdivergent, normodivergent and hypodivergent growth patterns. Four linear (ramus height, ramus width, mandibular depth, and antegonial notch depth) and 3 angular (symphyseal angle, gonial angle, and mandibular arc angle) cephalometric parameters were measured to represent mandibular morphology. The data were analysed using Chi-square test and Student's t-test. RESULTS No significant difference was found in linear measurements between thalassaemic patients and controls. The symphysis angle was significantly greater and the mandibular arc angle was significantly smaller in the total thalassaemic sample than the control individuals (P<0.001 and P=0.004, respectively). The difference in symphysis angle was significant in both hyperdivergent and normodivergent subjects (P=0.004 and P=0.002, respectively), whereas the difference in mandibular arc angle was only significant in the normodivergent subgroup P=0.001). CONCLUSIONS The smaller mandibular arc angle in the thalassaemic sample suggests a more superior than posterior growth direction of condyles compared with healthy individuals. The difference in symphyseal angle represents inherent differences in chin morphology between thalassaemic subjects and controls.
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Affiliation(s)
- Najmeh Movahhedian
- Shiraz University of Medical Sciences, School of Dentistry, Department of Oral and Maxillofacial Radiology, Shiraz, Iran
| | - Fatemeh Akbarizadeh
- Shiraz University of Medical Sciences, School of Dentistry, Department of Oral and Maxillofacial Radiology, Shiraz, Iran
| | - Leila Khojastepour
- Shiraz University of Medical Sciences, School of Dentistry, Department of Oral and Maxillofacial Radiology, Shiraz, Iran
| | - Ahmad Reza Sardarian
- Shiraz University of Medical Sciences, School of Dentistry, Orthodontic Research Centre, Department of Orthodontics, Shiraz, Iran
| | - Hamid Reza Pakshir
- Shiraz University of Medical Sciences, School of Dentistry, Orthodontic Research Centre, Department of Orthodontics, Shiraz, Iran
| | - Farzaneh Ahrari
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
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Aktuna Belgin C, Serindere G. Fractal and radiomorphometric analysis of mandibular bone changes in patients undergoing intravenous corticosteroid therapy. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 130:110-115. [DOI: 10.1016/j.oooo.2019.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 12/14/2019] [Accepted: 12/28/2019] [Indexed: 12/18/2022]
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Kato CNAO, Barra SG, Pereira MJC, Gomes LTF, Amaral TMP, Abreu LG, Brasileiro CB, Mesquita RA. Mandibular radiomorphometric parameters of women with cemento-osseous dysplasia. Dentomaxillofac Radiol 2020; 49:20190359. [PMID: 31846355 PMCID: PMC7213529 DOI: 10.1259/dmfr.20190359] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 12/06/2019] [Accepted: 12/11/2019] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE To compare the radiomorphometric parameters of mandibular trabecular and cortical bone of females with and without cemento-osseous dysplasia (COD). METHODS A retrospective cross-sectional paired study was conducted. Digital panoramic radiographs were obtained from females diagnosed in a public service of Oral Medicine. The participants were divided into two groups of 50 subjects each: females with a diagnosis of COD (COD group) and females without a diagnosis of COD (non-COD group), randomly chosen from the image database and paired for age. The radiomorphometric parameters analyzed were: mandibular cortical width (MCW), fractal dimension (FD) and mandibular cortical index (MCI). The paired t-test and Wilcoxon test were used to compare MCW and FD values and the McNemar-Bowker test compared the MCI. RESULTS The mean age of both groups was 46.84 ± 11.38 years. The median MCW index was 3.12 mm (2.15-4.55) for the COD group and 3.52 mm (1.90-4.70) for the non-COD group (p = 0.034). The mean FD value of the COD group (1.2039 ± 0.0926) was lower than that of the non-COD group (1.2472 ± 0.0894) in the anatomical region of the interest of mandibular cortical bone (p = 0.031), while no difference was detected in alveolar trabecular bone. The C3 degree of MCI was more frequent in the COD group (p = 0.009). CONCLUSION Females with COD had lower values of radiomorphometric parameters in mandibular cortical bone than females of the same age without COD. These results suggest that, in addition to the dental care recommended in the literature, COD females also require more attention and screening for low bone mineral density.
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Affiliation(s)
- Camila NAO Kato
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Sâmila G Barra
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Mateus JC Pereira
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Lucas TF Gomes
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Tânia MP Amaral
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Lucas G Abreu
- Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Cláudia B Brasileiro
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Ricardo A Mesquita
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901, Brazil
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Serindere G, Belgin CA. Evaluation of the effects of hemoglobinopathies on the mandible with fractal dimension analysis. Niger J Clin Pract 2019; 22:1435-1440. [PMID: 31607736 DOI: 10.4103/njcp.njcp_196_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Aims The aim of this study was to evaluate the mandibular bone changes on panoramic radiographs of thalassemia and sickle cell anemia (SCA) patients using fractal dimension (FD) analysis and to compare the findings obtained from healthy individuals. Materials and Methods A total of 90 panoramic radiographs (from 30 patients with thalassemia, 30 patients with SCA and 30 healthy individuals) were assessed to measure FD, mandibular cortical width (MCW), panoramic mandibular index (PMI) in the mandible. Three region of interests (ROI) of angulus, corpus, and interdental bone were created. FD was calculated using ImageJ program. Results In thalassemia group, the mean value of FD was 1.11, 1.03, and 1.02 in interdental bone, corpus, and angulus, respectively. In SCA group, the mean value of FD was 1.10, 1.05, and 1 in interdental bone, corpus, and angulus, respectively. In control group, the mean value of FD was 1.09, 1.04, and 1 in interdental bone, corpus, and angulus, respectively. FD value of interdental bone are significantly higher in thalassemia group than control group. FD values of corpus and angulus values did not show a significant difference between the groups. Conclusions Fractal analysis may be used and recommended for evaluation of the bone changes induced by hemoglobinopathies.
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Affiliation(s)
- G Serindere
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Hatay Mustafa Kemal University, Hatay, Turkey
| | - C A Belgin
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Hatay Mustafa Kemal University, Hatay, Turkey
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Gaêta-Araujo H, Oliveira-Santos N, Brasil DM, do Nascimento EHL, Madlum DV, Haiter-Neto F, Oliveira-Santos CD. Effect of micro-computed tomography reconstruction protocols on bone fractal dimension analysis. Dentomaxillofac Radiol 2019; 48:20190235. [PMID: 31408366 DOI: 10.1259/dmfr.20190235] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVES To evaluate the influence of the level of three micro-CT reconstruction tools: beam-hardening correction (BHC), smoothing filter (SF), and ring artefact correction (RAC) on the fractal dimension (FD) analysis of trabecular bone. METHODS Five Wistar rats' maxillae were individually scanned in a SkyScan 1174 micro-CT device, under the following settings: 50 kV, 800 µA, 10.2 µm voxel size, 0.5 mm Al filter, rotation step 0.5°, two frames average, 180° rotation and scan time of 35 min. The raw images were reconstructed under the standard protocol (SP) recommended by the manufacturer, a protocol without any artefact correction tools (P0) and 35 additional protocols with different combinations of SF, RAC and BHC levels. The same volume of interest was established in all reconstructions for each maxilla and the FD was calculated using the Kolmogorov (box counting) method. One-way ANOVA with Dunnet's post-hoc test was used to compare the FD of each reconstruction protocol (P0-P35) with the SP (α = 5%). Multiple linear regression verified the dependency of reconstruction tools in FD. RESULTS Overall, FD values are not dependent on RAC (p = 0.965), but increased significantly when the level of BHC and SF increased (p < 0.001). FD values from protocols with BHC at 45% combined with SF of 2, and BHC at 30% combined with SF of 4 or 6 had no statistical difference compared to SP. CONCLUSIONS BHC and SF tools affect the FD values of micro-CT images of the trabecular bone. Therefore, these reconstruction parameters should be standardized when the FD is analyzed.
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Affiliation(s)
- Hugo Gaêta-Araujo
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, Piracicaba, São Paulo, Brazil
| | - Nicolly Oliveira-Santos
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, Piracicaba, São Paulo, Brazil
| | - Danieli Moura Brasil
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, Piracicaba, São Paulo, Brazil
| | - Eduarda Helena Leandro do Nascimento
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, Piracicaba, São Paulo, Brazil
| | - Daniela Verardi Madlum
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, Piracicaba, São Paulo, Brazil
| | - Francisco Haiter-Neto
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, Piracicaba, São Paulo, Brazil
| | - Christiano de Oliveira-Santos
- Department of Stomatology, Public Oral Health, Forensic Dentistry, Division of Oral Radiology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
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Neves FS, Barros AS, Cerqueira GA, Cruz GA, Reis AA, Alves LB, Crusoé-Rebello I. Assessment of fractal dimension and panoramic radiomorphometric indices in women with celiac disease. Oral Radiol 2019; 36:141-147. [DOI: 10.1007/s11282-019-00388-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/20/2019] [Indexed: 12/11/2022]
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