Oral Radiology最新文献_第3页

Developing evidence-based clinical imaging guidelines for the diagnosis of vertically fractured teeth. 为诊断牙齿垂直折断制定循证临床成像指南。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-10-01 Epub Date: 2024-07-08 DOI: 10.1007/s11282-024-00766-2

Ki-Hong Kim, Jo-Eun Kim, Sam-Sun Lee, Chena Lee, Miyoung Choi, Hwan Seok Yong, Seung Eun Jung, Min-Suk Heo, Kyung-Hoe Huh

{"title":"Developing evidence-based clinical imaging guidelines for the diagnosis of vertically fractured teeth.","authors":"Ki-Hong Kim, Jo-Eun Kim, Sam-Sun Lee, Chena Lee, Miyoung Choi, Hwan Seok Yong, Seung Eun Jung, Min-Suk Heo, Kyung-Hoe Huh","doi":"10.1007/s11282-024-00766-2","DOIUrl":"10.1007/s11282-024-00766-2","url":null,"abstract":"Objectives: This study aimed to develop an evidence-based clinical imaging guideline for teeth suspected with vertical root fractures.Methods: An adaptation methodology based on the Korean Clinical Imaging Guidelines (K-CIG) was used in the guideline development process. After searching for guidelines using major databases such as Ovid-Medline, Elsevier-Embase, National Guideline Clearinghouse, and Guideline International Network, as well as domestic databases such as KoreaMed, KMbase, and KoMGI, two reviewers analyzed the retrieved articles. The retrieved articles were included in this review using well-established inclusion criteria.Results: Twenty articles were identified through an online search, of which three were selected for guideline development. Based on these three guidelines, this study developed specific recommendations concerning the optimal imaging modality for diagnosing teeth suspected of vertical root fractures.Conclusions: Periapical radiography is the preferred method for assessing teeth with mastication-related pain and suspected vertical root fractures. However, if intraoral radiographs do not provide sufficient information about root fractures, a small FOV CBCT may be considered. However, the use of CBCT in endodontically treated teeth is significantly constrained by the presence of artificial shading.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"471-483"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11379765/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141556067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radiologic evaluation of associated symptoms and fractal analysis of unilateral dens invaginatus cases. 相关症状的放射学评估和单侧颅内凹陷病例的骨折分析。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-10-01 Epub Date: 2024-05-15 DOI: 10.1007/s11282-024-00756-4

Sema Kaya, Alaettin Koc

{"title":"Radiologic evaluation of associated symptoms and fractal analysis of unilateral dens invaginatus cases.","authors":"Sema Kaya, Alaettin Koc","doi":"10.1007/s11282-024-00756-4","DOIUrl":"10.1007/s11282-024-00756-4","url":null,"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.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"484-491"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140923466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Central dentinogenic ghost cell tumor of the maxilla: a case report with new imaging findings and review of the literature. 上颌骨中心性牙本质鬼细胞瘤：病例报告、新的影像学发现和文献综述。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-10-01 Epub Date: 2024-07-05 DOI: 10.1007/s11282-024-00764-4

Suzuka Yoshida, Yohei Takeshita, Toshiyuki Kawazu, Miki Hisatomi, Shunsuke Okada, Mamiko Fujikura, Kyoichi Obata, Kiyofumi Takabatake, Saori Yoshida, Junichi Asaumi

{"title":"Central dentinogenic ghost cell tumor of the maxilla: a case report with new imaging findings and review of the literature.","authors":"Suzuka Yoshida, Yohei Takeshita, Toshiyuki Kawazu, Miki Hisatomi, Shunsuke Okada, Mamiko Fujikura, Kyoichi Obata, Kiyofumi Takabatake, Saori Yoshida, Junichi Asaumi","doi":"10.1007/s11282-024-00764-4","DOIUrl":"10.1007/s11282-024-00764-4","url":null,"abstract":"A dentinogenic ghost cell tumor (DGCT) is a rare benign odontogenic tumor that commonly shows characteristics of solid proliferation and has a relatively high risk of recurrence after surgical treatment. We herein report a case of a central DGCT that occurred in the maxilla and resulted in bone expansion. This study highlights new imaging findings (particularly magnetic resonance imaging) along with histopathological observations. In addition, we conducted a review of the existing literature on this rare tumor. A 37-year-old man developed swelling around the right cheek. A benign odontogenic tumor such as ameloblastoma was suspected based on the imaging examination findings (including bone expansion and the internal characteristics of the tumor) on panoramic imaging, computed tomography, and magnetic resonance imaging. The lesion was surgically excised from the right maxilla. Postoperative histopathological examination led to a definitive diagnosis of central DGCT. The tumor comprised epithelial neoplastic islands, resembling ameloblastoma, inside tight fibroconnective tissue; masses of ghost cells and formation of dentin were also observed. We had suspected that the minute high-density region around the molars on the imaging examinations represented alveolar bone change; however, it represented dentin formation. This led to difficulty diagnosing the lesion. Although DGCT may present characteristic findings on imaging examinations, its occurrence is infrequent, and in some cases, the findings may include the presence or absence of an impacted tooth without obvious calcification. The present case suggests that we should consider the possibility of an odontogenic tumor with calcification when high-density structures are observed inside the lesion.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"561-568"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11379793/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141538996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spread asymmetry to differentiate nasopalatine duct cysts from radicular cysts arising in the anterior maxilla on computed tomographic images. 通过计算机断层扫描图像上的不对称扩散来区分鼻腭管囊肿和上颌骨前部的根状囊肿。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-10-01 Epub Date: 2024-06-18 DOI: 10.1007/s11282-024-00761-7

Haruka Ikeda, Natsuho Takata, Yoshitaka Kise, Kaori Ebata, Mizuho Mori, Chiaki Kuwada, Masako Nishiyama, Yukiko Iwase, Yo Ninagawa, Munetaka Naitoh, Eiichiro Ariji

{"title":"Spread asymmetry to differentiate nasopalatine duct cysts from radicular cysts arising in the anterior maxilla on computed tomographic images.","authors":"Haruka Ikeda, Natsuho Takata, Yoshitaka Kise, Kaori Ebata, Mizuho Mori, Chiaki Kuwada, Masako Nishiyama, Yukiko Iwase, Yo Ninagawa, Munetaka Naitoh, Eiichiro Ariji","doi":"10.1007/s11282-024-00761-7","DOIUrl":"10.1007/s11282-024-00761-7","url":null,"abstract":"Objective: The aim of this study was to clarify numerical values for differentiating nasopalatine duct cysts (NPDCs) from radicular cysts (RCs) arising in the anterior maxilla on computed tomography (CT) or cone-beam CT (CBCT) images.Methods: CT or CBCT images of histologically proven NPDCs (n = 30) and RCs (n = 33) beyond the midline of the maxilla were investigated to determine two asymmetry indices on axial images of the maximum lesion area. The lateral asymmetry index was calculated based on two distances from each of the lateral ends of the lesion to the midsagittal plane. The index was defined as the difference between the two distances divided by their sum. The labio-palatal asymmetry index was determined by the distance between the labial and palatal ends of the lesion and the coronal plane passing through the central incisor root apex. The performance of these indices was assessed by receiver operating characteristic (ROC) analysis. The cutoff values for differentiating NPDCs from RCs were determined with the Youden procedure on the ROC curve.Results: The area under the ROC curve was 0.97 for the lateral asymmetry index and 0.88 for the labio-palatal asymmetry index. The cutoff values for differentiation were 0.36 and 0.68 for the lateral and labio-palatal asymmetry indices, respectively.Conclusion: The lateral asymmetry index appeared to be an effective reference for differentiating NPDCs from RCs on CT or CBCT images. When the index was less than the cutoff value, a diagnosis of NPDC was strongly suggested.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"501-507"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141422026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of clinical image evaluation charts for panoramic radiography. 全景放射摄影临床图像评估图表的比较分析。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-10-01 Epub Date: 2024-07-08 DOI: 10.1007/s11282-024-00765-3

Yeonhee Kim, Samsun Lee, Gyudong Jo, Ahyoung Kwon, Juhee Kang, Joeun Kim, Kyunghoe Huh, Wonjin Yi, Minsuk Heo, Soonchul Choi

{"title":"Comparative analysis of clinical image evaluation charts for panoramic radiography.","authors":"Yeonhee Kim, Samsun Lee, Gyudong Jo, Ahyoung Kwon, Juhee Kang, Joeun Kim, Kyunghoe Huh, Wonjin Yi, Minsuk Heo, Soonchul Choi","doi":"10.1007/s11282-024-00765-3","DOIUrl":"10.1007/s11282-024-00765-3","url":null,"abstract":"Objective: To compare and analyze professional (P chart) and simple (S chart) clinical image evaluation charts for evaluating panoramic radiograph image quality.Methods: Ten evaluators assessed 285 clinical panoramic radiograph images. The evaluators were divided into oral and maxillofacial radiologists (OMFR, n = 5) and general dentist (dentists not specializing in oral and maxillofacial radiology, G, n = 5) groups. For image evaluation, P and S charts provided by the Korean Academy of Oral and Maxillofacial Radiology were used. Scores of items for each evaluation chart were used to compare the reliability, correlation, evaluation scores, evaluation time, and preference, and statistical analyses were performed using IBM SPSS Statistics.Results: The S chart showed similar levels of evaluation scores at shorter evaluation time, as compared to the P chart. In the results for each evaluation chart, all analyzed correlations were statistically significant. Total score, image density/contrast/sharpness, and overall image quality items showed a very high positive correlation in the P chart. While the overall range of correlation coefficients was relatively lower in the S chart than the P chart, the same items showed high correlation coefficients. In the preference evaluation, both the professional and generalist groups preferred the S chart.Conclusions: A comparative analysis with the P chart, revisions, and upgrades are needed for the S chart items that showed low correlations in this study, such as artifacts, coverage area, and patient movement.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"520-529"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11379777/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141560456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of masticatory muscles in patients with different sagittal direction skeletal anomalies by ultrasonography and ultrasonographic elastography. 通过超声波和超声波弹性成像评估不同矢状向骨骼异常患者的咀嚼肌。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-09-26 DOI: 10.1007/s11282-024-00774-2

Cansu Tüfekçi, Esra Bolat Gümüş, Sevcihan Günen Yılmaz

{"title":"Evaluation of masticatory muscles in patients with different sagittal direction skeletal anomalies by ultrasonography and ultrasonographic elastography.","authors":"Cansu Tüfekçi, Esra Bolat Gümüş, Sevcihan Günen Yılmaz","doi":"10.1007/s11282-024-00774-2","DOIUrl":"https://doi.org/10.1007/s11282-024-00774-2","url":null,"abstract":"Objectives: The aim of this study was to evaluated the masseter, anterior digastric and geniohyoid muscles of individuals with similar growth and developmental periods but different sagittal skeletal malocclusions using ultrasonography and ultrasonographic elastography and to make interclass assessments.Methods: In this study, ultrasonography and ultrasonographic elastography records of 30 Class I individuals (17 females, 13 males), 30 Class II individuals (14 females, 16 males), and 27 Class III individuals (12 females, 15 males) in the normodivergent and growth development period were used. The masseter, anterior digastric, and geniohyoid muscles of individuals were examined using ultrasonography and ultrasonographic elastography, and comparisons were made between the classes. Statistical analysis was accomplished by Mann Whitney U, One-way ANOVA, Kruskal Wallis H tests.Results: Interclass differences were found in ultrasonography and elastography measurements of the masseter muscle. However, no differences were observed in ultrasonography measurements of the auxiliary masticatory muscles, whereas differences were seen only in the geniohyoid muscle in elastography measurements among the classes (p < 0.05).Conclusion: Individuals with different sagittal skeletal malocclusions during growth and development exhibited similar muscle sizes and elasticities, approximately close to each other.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142333156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The relationship between radiographic measurements of alveolar bone in posterior single-tooth edentulous regions and non-alveolar jawbones using multidetector computed tomography. 使用多载体计算机断层扫描测量后部单齿无牙区牙槽骨和非牙槽骨颌骨之间的关系。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-09-24 DOI: 10.1007/s11282-024-00771-5

Imad Barngkgei, Leen Khattash, Samar Kakhia

{"title":"The relationship between radiographic measurements of alveolar bone in posterior single-tooth edentulous regions and non-alveolar jawbones using multidetector computed tomography.","authors":"Imad Barngkgei, Leen Khattash, Samar Kakhia","doi":"10.1007/s11282-024-00771-5","DOIUrl":"https://doi.org/10.1007/s11282-024-00771-5","url":null,"abstract":"Objective: This study aimed to evaluate the relationship between radiographic measurements of the alveolar bone in posterior single-tooth edentulous regions and radiographic measurements of non-alveolar jawbones using multidetector computed tomography (MDCT).Methods: The sample consisted of 47 patients aged between 20 and 42 years who underwent MDCT. All patients had a posterior single-tooth edentulous region. Extraction was performed 1-8 years ago at the time of inclusion (mean = 3.2). The alveolar bone in the edentulous region and non-alveolar bone regions (maxillary tuberosity, condyles, inferior to the mandibular foramen, and mandibular angle) were studied radiographically (radiographic density, dimensions, and cortical bone ratio). Pearson correlation, independent sample t test, and linear regression analysis were used for the statistical analysis.Results: Radiographic density of the alveolar bone (measured in the axial or buccolingual directions) correlated significantly with that of the maxillary tuberosity (0.3 < r < 0.4; P value ≥ 0.001) and, to a lesser extent, with the radiographic density of the region inferior to the mental foramen (r ≈ 0.3). Based on these correlation coefficients, non-alveolar bone density could explain 10-16% of the alveolar bone density after extraction according to linear regression analysis.Conclusions: This study revealed that alveolar bone radiographic density was correlated with that of the maxillary tuberosity and inferior to the mental foramen region. Accordingly, linear regression models were suggested to aid in predicting future alveolar bone density in areas where extraction is to be performed.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142309206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accuracy of intraoral ultrasound to evaluate alveolar bone level: an ex vivo study in human cadavers 口内超声波评估牙槽骨水平的准确性：人体尸体活体研究

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-09-09 DOI: 10.1007/s11282-024-00773-3

Claudiu Corbea, Lawrence H. Le, Neelambar R. Kaipatur, Mengxun Li, Kim Cuong Nguyen, Giseon Heo, Carlos Alberto Figueredo, Paul W. Major, Fabiana T. Almeida

{"title":"Accuracy of intraoral ultrasound to evaluate alveolar bone level: an ex vivo study in human cadavers","authors":"Claudiu Corbea, Lawrence H. Le, Neelambar R. Kaipatur, Mengxun Li, Kim Cuong Nguyen, Giseon Heo, Carlos Alberto Figueredo, Paul W. Major, Fabiana T. Almeida","doi":"10.1007/s11282-024-00773-3","DOIUrl":"https://doi.org/10.1007/s11282-024-00773-3","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Objectives</h3>This study aimed to evaluate the reliability and accuracy of an intraoral ultrasound (US) device to evaluate alveolar bone by comparing it between different raters and to microCT (µCT) measurements.<h3 data-test=\"abstract-sub-heading\">Methods</h3>38 teeth distributed across three human cadavers were prepared by placing two notches on the facial enamel surface. The maxillary and mandibular teeth were imaged with a custom-designed intraoral 20 MHz ultrasound and µCT with 0.03 mm voxel size. µCT was considered the reference standard for this study. For each sample, the distance from the inferior border of the most apical notch to the tip of the alveolar bone crest on the facial aspect of the teeth was measured from the US and µCT images. Intraclass correlation coefficient (ICC) and standard deviation were calculated.<h3 data-test=\"abstract-sub-heading\">Results</h3>The intra-examiner and inter-examiner reliability for both the µCT and US alveolar bone measurements were found to be excellent (intra-examiner ICC was 0.998 for µCT and 0.997 for US, inter-examiner ICC was 0.996 for µCT and between 0.947 and 0.950 for US). The accuracy of the US was found to be good compared to µCT (ICC between 0.885 and 0.894).<h3 data-test=\"abstract-sub-heading\">Conclusion</h3>The study demonstrated that intraoral ultrasound is highly reliable and accurate compared to the µCT reference standard for evaluating facial alveolar bone height.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":"42 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing masseter muscle volume and activity in relation to craniofacial morphology: a 3D CBCT study. 评估与颅面形态有关的颌下肌体积和活动：三维 CBCT 研究。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-09-03 DOI: 10.1007/s11282-024-00772-4

Alime Okkesim, Melda Misirlioglu

{"title":"Assessing masseter muscle volume and activity in relation to craniofacial morphology: a 3D CBCT study.","authors":"Alime Okkesim, Melda Misirlioglu","doi":"10.1007/s11282-024-00772-4","DOIUrl":"https://doi.org/10.1007/s11282-024-00772-4","url":null,"abstract":"Introductions: Understanding the factors influencing craniofacial structure growth is crucial for addressing craniofacial deformities. This study evaluates masseter muscle volume, activity, and maximum bite force across different skeletal malocclusion groups and aims to evaluate the masseter muscle volume, activity, and maximum bite force (BF) according to different skeletal malocclusion groups.Methods: This study aimed to assess masseter muscle volume, activity, and maximum bite force (BF) across different skeletal malocclusion groups in 60 young adults (18-30 years) seeking treatment at Kirikkale University Faculty of Dentistry. Cone-Beam Computed Tomography (CBCT) imaging, radiological measurements, surface electromyography (sEMG), and force sensor measurements were employed.Results: Results revealed significant differences in sEMG measurements based on sagittal classification. Vertical direction groups showed notable results in muscle volume and BF, though no significant differences were observed in sEMG values. A correlation was identified between BF and sEMG, but no correlation was found between muscle volume and other parameters.Conclusions: The findings obtained in this study suggest that the significant relationship between EMG and sagittal skeletal classification could be a valuable diagnostic tool. However, concerns about reliability were raised due to uneven distribution in muscle volume and BF among vertical direction groups. The lack of significant results in muscle volume, sEMG, and BF was attributed to CBCT limitations in soft tissue imaging and the small sample size, emphasizing caution in interpreting the findings.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142121249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep learning segmentation of mandible with lower dentition from cone beam CT. 利用锥形束 CT 对下颌骨和下牙进行深度学习分割。

IF 1.6 3区医学

Oral Radiology Pub Date : 2024-08-14 DOI: 10.1007/s11282-024-00770-6

Daniel C Kargilis, Winnie Xu, Samir Reddy, Shilpa Shree Kuduva Ramesh, Steven Wang, Anh D Le, Chamith S Rajapakse

{"title":"Deep learning segmentation of mandible with lower dentition from cone beam CT.","authors":"Daniel C Kargilis, Winnie Xu, Samir Reddy, Shilpa Shree Kuduva Ramesh, Steven Wang, Anh D Le, Chamith S Rajapakse","doi":"10.1007/s11282-024-00770-6","DOIUrl":"https://doi.org/10.1007/s11282-024-00770-6","url":null,"abstract":"Objectives: This study aimed to train a 3D U-Net convolutional neural network (CNN) for mandible and lower dentition segmentation from cone-beam computed tomography (CBCT) scans.Methods: In an ambispective cross-sectional design, CBCT scans from two hospitals (2009-2019 and 2021-2022) constituted an internal dataset and external validation set, respectively. Manual segmentation informed CNN training, and evaluations employed Dice similarity coefficient (DSC) for volumetric accuracy. A blinded oral maxillofacial surgeon performed qualitative grading of CBCT scans and object meshes. Statistical analyses included independent t-tests and ANOVA tests to compare DSC across patient subgroups of gender, race, body mass index (BMI), test dataset used, age, and degree of metal artifact. Tests were powered for a minimum detectable difference in DSC of 0.025, with alpha of 0.05 and power level of 0.8.Results: 648 CBCT scans from 490 patients were included in the study. The CNN achieved high accuracy (average DSC: 0.945 internal, 0.940 external). No DSC differences were observed between test set used, gender, BMI, and race. Significant differences in DSC were identified based on age group and the degree of metal artifact. The majority (80%) of object meshes produced by both manual and automatic segmentation were rated as acceptable or higher quality.Conclusion: We developed a model for automatic mandible and lower dentition segmentation from CBCT scans in a demographically diverse cohort including a high degree of metal artifacts. The model demonstrated good accuracy on internal and external test sets, with majority acceptable quality from a clinical grader.","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141977343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0