Imaging Science in Dentistry最新文献_第8页

A pilot study of half-value layer measurements using a semiconductor dosimeter for intraoral radiography. 一项使用半导体剂量计进行口内射线照相半值层测量的初步研究。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-09-01 Epub Date: 2023-06-20 DOI: 10.5624/isd.20230039

Shun Nouchi, Hidenori Yoshida, Yusaku Miki, Yasuhito Tezuka, Ruri Ogawa, Ichiro Ogura

{"title":"A pilot study of half-value layer measurements using a semiconductor dosimeter for intraoral radiography.","authors":"Shun Nouchi, Hidenori Yoshida, Yusaku Miki, Yasuhito Tezuka, Ruri Ogawa, Ichiro Ogura","doi":"10.5624/isd.20230039","DOIUrl":"10.5624/isd.20230039","url":null,"abstract":"Purpose: This pilot study was conducted to evaluate half-value layer (HVL) measurements obtained using a semiconductor dosimeter for intraoral radiography.Materials and methods: This study included 8 aluminum plates, 4 of which were low-purity (less than 99.9%) and 4 high-purity (greater than 99.9%). Intraoral radiography was performed using an intraoral X-ray unit in accordance with the dental protocol at the authors' affiliated hospital: tube voltage, 60 kVp and 70 kVp; tube current, 7 mA; and exposure time, 0.10 s. The accuracy of HVL measurements for intraoral radiography was assessed using a semiconductor dosimeter. A simple regression analysis was performed to compare the aluminum plate thickness and HVL in relation to the tube voltage (60 kVp and 70 kVp) and aluminum purity (low and high).Results: For the low-purity aluminum plates, the HVL at 60 kVp (Y) and 70 kVp (Y) was significantly correlated with the thickness of the aluminum plate (X), with Y = 1.708 + 0.415X (r=0.999, P<0.05) and Y = 1.980 + 0.484X (r=0.999, P<0.05), respectively. Similarly, for the high-purity aluminum plates, the HVL at 60 kVp (Y) and 70 kVp (Y) was significantly correlated with the plate thickness (X), with Y = 1.696 + 0.454X (r=0.999, P<0.05) and Y = 1.968 + 0.515X (r=0.998, P<0.05), respectively.Conclusion: This pilot study examined the relationship between aluminum plate thickness and HVL measurements using a semiconductor dosimeter for intraoral radiography. Semiconductor dosimeters may prove useful in HVL measurement for purposes such as quality assurance in dental X-ray imaging.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 3","pages":"217-220"},"PeriodicalIF":1.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c7/95/isd-53-217.PMC10548152.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41159006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ancient schwannoma in the parotid gland: A case report and review of the literature. 腮腺古代神经鞘瘤：一例报告并文献复习。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-09-01 Epub Date: 2023-09-04 DOI: 10.5624/isd.20230504

Young-Eun Kwon

引用次数: 0

Erratum to: The Vectra M3 3-dimensional digital stereophotogrammetry system: A reliable technique for detecting chin asymmetry. 勘误表：Vectra M3三维数字立体摄影测量系统：检测下巴不对称的可靠技术。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-09-01 Epub Date: 2023-08-02 DOI: 10.5624/isd.20230701

Stina Hansson, Emil Östlund, Farhan Bazargani

引用次数: 0

Importance of 3-dimensional imaging in the early diagnosis of chondroblastic osteosarcoma. 三维成像在软骨母细胞骨肉瘤早期诊断中的重要性。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-09-01 Epub Date: 2023-08-02 DOI: 10.5624/isd.20220223

Laura Althea Cuschieri, Rebecca Schembri-Higgans, Nicholas Bezzina, Alexandra Betts, Arthur Rodriguez Gonzalez Cortes

{"title":"Importance of 3-dimensional imaging in the early diagnosis of chondroblastic osteosarcoma.","authors":"Laura Althea Cuschieri, Rebecca Schembri-Higgans, Nicholas Bezzina, Alexandra Betts, Arthur Rodriguez Gonzalez Cortes","doi":"10.5624/isd.20220223","DOIUrl":"10.5624/isd.20220223","url":null,"abstract":"The aim of this report is to present a case of chondroblastic osteosarcoma located in the right maxillary premolar region of a 17-year-old female patient. The initial clinical presentation and 2-dimensional (2D) radiographic methods proved inadequate for a definitive diagnosis. However, a cone-beam computed tomography scan revealed a hyperdense, heterogeneous lesion in the right maxillary premolar region, exhibiting a characteristic \"sun-ray\" appearance. To assess soft tissue involvement, a medical computed tomography scan was subsequently conducted. A positron emission tomography scan detected no metastasis or indications of secondary tumors. T1- and T2-weighted magnetic resonance imaging showed signal heterogeneity within the lesion, including areas of low signal intensity at the periphery. A histological examination conducted after an incisional biopsy confirmed the diagnosis of high-grade chondroblastic osteosarcoma. The patient was then referred to an oncology department for chemotherapy before surgery. In conclusion, these findings suggest that early diagnosis using 3-dimensional imaging can detect chondroblastic osteosarcoma in its early stages, such as before metastasis occurs, thereby improving the patient's prognosis.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 3","pages":"247-256"},"PeriodicalIF":1.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a0/19/isd-53-247.PMC10548150.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41163079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dental age estimation in Indonesian adults: An investigation of the maxillary canine pulp-to-tooth volume ratio using cone-beam computed tomography. 印尼成年人的牙齿年龄估计：使用锥形束计算机断层扫描对上颌犬齿牙髓与牙齿体积比的调查。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-09-01 Epub Date: 2023-08-02 DOI: 10.5624/isd.20230104

Khamila Gayatri Anjani, Rizky Merdietio Boedi, Belly Sam, Fahmi Oscandar

{"title":"Dental age estimation in Indonesian adults: An investigation of the maxillary canine pulp-to-tooth volume ratio using cone-beam computed tomography.","authors":"Khamila Gayatri Anjani, Rizky Merdietio Boedi, Belly Sam, Fahmi Oscandar","doi":"10.5624/isd.20230104","DOIUrl":"10.5624/isd.20230104","url":null,"abstract":"Purpose: This study was performed to develop a linear regression model using the pulp-to-tooth volume ratio (PTVR) ratio of the maxillary canine, assessed through cone-beam computed tomography (CBCT) images, to predict chronological age (CA) in Indonesian adults.Materials and methods: A sample of 99 maxillary canines was collected from patients between 20 and 49.99 years old. These samples were obtained from CBCT scans taken at the Universitas Padjadjaran Dental Hospital in Indonesia between 2018 and 2022. Pulp volume (PV) and tooth volume (TV) were measured using ITK-SNAP, while PTVR was calculated from the PV/TV ratio. Using RStudio, a linear regression was performed to predict CA using PTVR. Additionally, correlation and observer agreement were assessed.Results: The PTVR method demonstrated excellent reproducibility, and a significant correlation was found between the PTVR of the maxillary canine and CA (r=-0.74, P<0.01). The linear regression analysis showed an R2 of 0.58, a root mean square error of 5.85, and a mean absolute error of 4.31.Conclusion: Linear regression using the PTVR can be effectively applied to predict CA in Indonesian adults between 20 and 49.99 years of age. As models of this type can be population-specific, recalibration for each population is encouraged. Additionally, future research should explore the use of other teeth, such as molars.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 3","pages":"221-228"},"PeriodicalIF":1.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/72/1c/isd-53-221.PMC10548155.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41139036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Clinical assessment of various imaging systems for dental plaque scoring after the use of 3 different toothpastes. 使用3种不同牙膏后各种成像系统对牙菌斑评分的临床评估。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-09-01 Epub Date: 2023-06-20 DOI: 10.5624/isd.20220208

Simge Meseli, Sergen Ekenel, Bora Korkut, Burak Aksu, Dilek Tagtekin, Funda Yanikoglu

{"title":"Clinical assessment of various imaging systems for dental plaque scoring after the use of 3 different toothpastes.","authors":"Simge Meseli, Sergen Ekenel, Bora Korkut, Burak Aksu, Dilek Tagtekin, Funda Yanikoglu","doi":"10.5624/isd.20220208","DOIUrl":"10.5624/isd.20220208","url":null,"abstract":"Purpose: This study was conducted to compare dental plaque scores obtained through clinical examinations and various imaging techniques, as well as to assess the effectiveness of herbal and conventional toothpastes for plaque removal.Material and methods: Thirty volunteers were divided into 3 groups. Each group was given a different toothpaste (from 2 herbal toothpastes and a conventional toothpaste) with which to brush their teeth for 21 days. Both initially and after brushing, dental plaque samples were collected, and plaque on the buccal surfaces of anterior teeth was scored using several imaging systems after staining with a disclosing agent. Specifically, digital dental photography, intraoral digital scanning, and FluoreCam imaging were employed to capture intraoral images. The Turesky Modified Quigley-Hein Plaque Index was used for clinical examination and image analysis. Quantitative polymerase chain reaction analyses and correlational assessments between clinical examination and imaging scores were conducted before and after toothpaste use. The Shapiro-Wilk test and Pearson correlations were utilized.Results: The lowest mean value was observed in the clinical examination without staining, while the highest was obtained using the FluoreCam method. No significant change was found in the level of any microorganism assessed following toothpaste use (P<0.05), with the exception of a decrease in S. mutans levels after using conventional toothpaste (P<0.05).Conclusion: Herbal toothpaste demonstrated plaque-removal effectiveness comparable to that of conventional toothpaste. The use of imaging methods for measuring plaque index has been suggested as a means to educate patients about plaque control and promote ongoing oral care.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 3","pages":"209-216"},"PeriodicalIF":1.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/28/3f/isd-53-209.PMC10548153.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41146438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cone-beam computed tomographic reconstructions in the evaluation of maxillary impacted canines. 锥束计算机断层重建在上颌阻生牙评估中的应用。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-06-01 DOI: 10.5624/isd.20220211

David MacDonald, Sharifa Alebrahim, Edwin Yen, Jolanta Aleksejuniene

{"title":"Cone-beam computed tomographic reconstructions in the evaluation of maxillary impacted canines.","authors":"David MacDonald, Sharifa Alebrahim, Edwin Yen, Jolanta Aleksejuniene","doi":"10.5624/isd.20220211","DOIUrl":"https://doi.org/10.5624/isd.20220211","url":null,"abstract":"Purpose: Prior to cone-beam computed tomography (CBCT), orthodontic competence included radiological interpretation. Nevertheless, maxillary impacted canines (MICs), because of their position and adjacent complex anatomy, have been challenging to interpret, particularly with regard to root resorption. Although CBCT cross-sectional reconstructions of MICs yielded clearer insights into its diagnosis and treatment planning, the value of simultaneously using 2 different cross-sectional or multiplanar reconstructions of the CBCT datasets - orthogonal and curved/panoramic multiplanar reconstructions - has hitherto not been considered.Materials and methods: Both orthogonal and curved/panoramic multiplanar reconstruction series of 5 screenshots were each reconstructed from the 5 cm × 5 cm CBCT datasets of 15 separate MICs. Fifteen credentialled and experienced orthodontist volunteers reviewed 2 separate PowerPoints of 15 randomized series each, 1 week apart. Their review considered 6 factors that could affect treatment: the position and level of the MIC, the presence or absence of root resorption, ankylosis, cysts, and dilaceration.Results: All 15 orthodontists were statistically similar regarding overall years of experience and of CBCT use. Although either reconstruction alone allowed the orthodontists to determine whether ankylosis and, to a lesser extent, most of the other features were present or absent in the MIC, reviewing both reconstructions together was necessary to determine whether root resorption was present or absent in the adjacent tooth.Conclusion: Reviewing both orthogonal and curved/panoramic multiplanar reconstructions was necessary to evaluate the presence or absence of root resorption in the teeth adjacent to MICs and that of many other features.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 2","pages":"145-151"},"PeriodicalIF":1.8,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/64/3e/isd-53-145.PMC10315227.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10160545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Texture analysis in cone-beam computed tomographic images of medication-related osteonecrosis of the jaw. 颌骨药物相关性骨坏死锥形束计算机断层图像的纹理分析。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-06-01 DOI: 10.5624/isd.20220202

Polyane Mazucatto Queiroz, Karolina Castilho Fardim, André Luiz Ferreira Costa, Ricardo Alves Matheus, Sérgio Lúcio Pereira Castro Lopes

{"title":"Texture analysis in cone-beam computed tomographic images of medication-related osteonecrosis of the jaw.","authors":"Polyane Mazucatto Queiroz, Karolina Castilho Fardim, André Luiz Ferreira Costa, Ricardo Alves Matheus, Sérgio Lúcio Pereira Castro Lopes","doi":"10.5624/isd.20220202","DOIUrl":"https://doi.org/10.5624/isd.20220202","url":null,"abstract":"Purpose: The aim of this study was to evaluate changes in the trabecular bone through texture analysis and compare the texture analysis characteristics of different areas in patients with medication-related osteonecrosis of the jaw (MRONJ).Materials and methods: Cone-beam computed tomographic images of 16 patients diagnosed with MRONJ were used. In sagittal images, 3 regions were chosen: active osteonecrosis (AO); intermediate tissue (IT), which presented a zone of apparently healthy tissue adjacent to the AO area; and healthy bone tissue (HT) (control area). Texture analysis was performed evaluating 7 parameters: secondary angular momentum, contrast, correlation, sum of squares, inverse moment of difference, sum of entropies, and entropy. Data were analyzed using the Kruskal-Wallis test with a significance level of 5%.Results: Comparing the areas of AO, IT, and HT, significant differences (P<0.05) were observed. The IT and AO area images showed higher values for parameters such as contrast, entropy, and secondary angular momentum than the HT area, indicating greater disorder in these tissues.Conclusion: Through texture analysis, changes in the bone pattern could be observed in areas of osteonecrosis. The texture analysis demonstrated that areas visually identified and classified as IT still had necrotic tissue, thereby increasing the accuracy of delimiting the real extension of MRONJ.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 2","pages":"109-115"},"PeriodicalIF":1.8,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d2/8d/isd-53-109.PMC10315229.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9858322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extracolonic manifestations of Gardner syndrome: A case report. Gardner综合征的结肠外表现1例。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-06-01 DOI: 10.5624/isd.20230006

McKenzie C Blackwell, Bhushan Thakkar, Andres Flores, Wenjian Zhang

引用次数: 0

Clinical and radiological characteristics of odontomas: A retrospective study of 90 cases. 90例牙瘤的临床和影像学特征回顾性分析。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-06-01 DOI: 10.5624/isd.20220184

Dung Kim Nguyen, Duong Van Huynh

{"title":"Clinical and radiological characteristics of odontomas: A retrospective study of 90 cases.","authors":"Dung Kim Nguyen, Duong Van Huynh","doi":"10.5624/isd.20220184","DOIUrl":"https://doi.org/10.5624/isd.20220184","url":null,"abstract":"Purpose: Odontomas represent a common clinical entity among odontogenic tumors, but are not well-addressed in the Vietnamese population. The present study aimed to determine the clinical and preclinical characteristics of odontomas and associated factors in the Vietnamese population.Materials and methods: This retrospective study retrieved data from histopathological diagnoses from 2 central hospitals of Odonto-Stomatology in Ho Chi Minh City, Vietnam during 2004-2017. The odontomas were classified as complex (CxOD) or compound (CpOD) subtypes. The epidemiological, clinical, and radiological characteristics of the odontomas, stratified by subtype and sex, were obtained and analyzed.Results: Ninety cases, consisting of 46 CxODs and 44 CpODs, were included. The average age of patients was 32.4 (±20.2) years. The patients with CxOD were older than those with CpOD (P<0.05). Clinically, 67% of patients showed an intraoral bone expansion. Approximately 60% of patients with CxOD exhibited a painful symptom, about 3-fold more than those with CpOD (P<0.05), whereas almost all patients with CpOD exhibited perturbations of dentition, unlike those with CxOD (P<0.05). Radiologically, CxOD was characterized by a larger dimension than CpOD in both sexes (P<0.05), and CpOD induced complications in adjacent teeth more often than CxOD (P<0.05). The development of odontoma with advancing age differed significantly in odontoma subtypes related to their pathological origins, and between the sexes, resulting from different physiological states.Conclusion: The findings of this study highlight the value of clinical and radiological features of odontomas and their associated factors for the early diagnosis and adequate treatment of younger patients.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 2","pages":"117-126"},"PeriodicalIF":1.8,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/33/5b/isd-53-117.PMC10315233.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10160546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2