Imaging Science in Dentistry最新文献_第8页

Effect of cone-beam computed tomography metal artefact reduction on incomplete subtle vertical root fractures. 锥形束计算机断层金属伪影还原对不完全细微垂直根骨折的影响。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-03-01 DOI: 10.5624/isd.20220106

Andréa Huey Tsu Wang, Francine Kühl Panzarella, Carlos Eduardo Fontana, José Luiz Cintra Junqueira, Carlos Eduardo da Silveira Bueno

{"title":"Effect of cone-beam computed tomography metal artefact reduction on incomplete subtle vertical root fractures.","authors":"Andréa Huey Tsu Wang, Francine Kühl Panzarella, Carlos Eduardo Fontana, José Luiz Cintra Junqueira, Carlos Eduardo da Silveira Bueno","doi":"10.5624/isd.20220106","DOIUrl":"https://doi.org/10.5624/isd.20220106","url":null,"abstract":"Purpose: This study compared the accuracy of detection of incomplete vertical root fractures (VRFs) in filled and unfilled teeth on cone-beam computed tomography images with and without a metal artefact reduction (MAR) algorithm.Materials and methods: Forty single-rooted maxillary premolars were selected and, after endodontic instrumentation, were categorized as unfilled teeth without fractures, filled teeth without fractures, unfilled teeth with fractures, or filled teeth with fractures. Each VRF was artificially created and confirmed by operative microscopy. The teeth were randomly arranged, and images were acquired with and without the MAR algorithm. The images were evaluated with OnDemand software (Cybermed Inc., Seoul, Korea). After training, 2 blinded observers each assessed the images for the presence and absence of VRFs 2 times separated by a 1-week interval. P-values<0.05 were considered to indicate significance.Results: Of the 4 protocols, unfilled teeth analysed with the MAR algorithm had the highest accuracy of incomplete VRF diagnosis (0.65), while unfilled teeth reviewed without MAR were associated with the least accurate diagnosis (0.55). With MAR, an unfilled tooth with an incomplete VRF was 4 times more likely to be identified as having an incomplete VRF than an unfilled tooth without this condition, while without MAR, an unfilled tooth with an incomplete VRF was 2.28 times more likely to be identified as having an incomplete VRF than an unfilled tooth without this condition.Conclusion: The use of the MAR algorithm increased the diagnostic accuracy in the detection of incomplete VRF on images of unfilled teeth.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 1","pages":"11-19"},"PeriodicalIF":1.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/99/15/isd-53-11.PMC10060756.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9594438","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

A novel method of objectively detecting tooth ankylosis using cone-beam computed tomography: A laboratory study. 一种利用锥束计算机断层扫描客观检测牙齿强直的新方法:实验室研究。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-03-01 DOI: 10.5624/isd.20220186

Luciano Augusto Cano Martins, Danieli Moura Brasil, Deborah Queiroz Freitas, Matheus L Oliveira

{"title":"A novel method of objectively detecting tooth ankylosis using cone-beam computed tomography: A laboratory study.","authors":"Luciano Augusto Cano Martins, Danieli Moura Brasil, Deborah Queiroz Freitas, Matheus L Oliveira","doi":"10.5624/isd.20220186","DOIUrl":"https://doi.org/10.5624/isd.20220186","url":null,"abstract":"Purpose: The aim of this study was to objectively detect simulated tooth ankylosis using a novel method involving cone-beam computed tomography (CBCT).Materials and methods: Tooth ankylosis was simulated in single-rooted human permanent teeth, and CBCT scans were acquired at different current levels (5, 6.3, and 8 mA) and voxel sizes (0.08, 0.125, and 0.2). In axial reconstructions, a line of interest was perpendicularly placed over the periodontal ligament space of 21 ankylosed and 21 non-ankylosed regions, and the CBCT grey values of all voxels along the line of interest were plotted against their corresponding X-coordinates through a line graph to generate a profile. The image contrast was increased by 30% and 60% and the profile assessment was repeated. The internal area of the resulting parabolas was obtained from all images and compared between ankylosed and non-ankylosed regions under different contrast enhancement conditions, voxel sizes, and mA levels using multi-way analysis of variance with the Tukey post hoc test (α=0.05).Results: The internal area of the parabolas of all non-ankylosed regions was significantly higher than that of the ankylosed regions (P<0.05). Contrast enhancement led to a significantly greater internal area of the parabolas of non-ankylosed regions (P<0.05). Overall, voxel size and mA did not significantly influence the internal area of the parabolas (P>0.05).Conclusion: The proposed novel method revealed a relevant degree of applicability in the detection of simulated tooth ankylosis; increased image contrast led to greater detectability.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 1","pages":"61-67"},"PeriodicalIF":1.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d2/b4/isd-53-61.PMC10060758.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9609531","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

Effect of deep transfer learning with a different kind of lesion on classification performance of pre-trained model: Verification with radiolucent lesions on panoramic radiographs. 不同病变类型的深度迁移学习对预训练模型分类性能的影响:全景x线片上透光病变的验证。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-03-01 DOI: 10.5624/isd.20220133

Yoshitaka Kise, Yoshiko Ariji, Chiaki Kuwada, Motoki Fukuda, Eiichiro Ariji

{"title":"Effect of deep transfer learning with a different kind of lesion on classification performance of pre-trained model: Verification with radiolucent lesions on panoramic radiographs.","authors":"Yoshitaka Kise, Yoshiko Ariji, Chiaki Kuwada, Motoki Fukuda, Eiichiro Ariji","doi":"10.5624/isd.20220133","DOIUrl":"https://doi.org/10.5624/isd.20220133","url":null,"abstract":"Purpose: The aim of this study was to clarify the influence of training with a different kind of lesion on the performance of a target model.Materials and methods: A total of 310 patients (211 men, 99 women; average age, 47.9±16.1 years) were selected and their panoramic images were used in this study. We created a source model using panoramic radiographs including mandibular radiolucent cyst-like lesions (radicular cyst, dentigerous cyst, odontogenic keratocyst, and ameloblastoma). The model was simulatively transferred and trained on images of Stafne's bone cavity. A learning model was created using a customized DetectNet built in the Digits version 5.0 (NVIDIA, Santa Clara, CA). Two machines (Machines A and B) with identical specifications were used to simulate transfer learning. A source model was created from the data consisting of ameloblastoma, odontogenic keratocyst, dentigerous cyst, and radicular cyst in Machine A. Thereafter, it was transferred to Machine B and trained on additional data of Stafne's bone cavity to create target models. To investigate the effect of the number of cases, we created several target models with different numbers of Stafne's bone cavity cases.Results: When the Stafne's bone cavity data were added to the training, both the detection and classification performances for this pathology improved. Even for lesions other than Stafne's bone cavity, the detection sensitivities tended to increase with the increase in the number of Stafne's bone cavities.Conclusion: This study showed that using different lesions for transfer learning improves the performance of the model.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 1","pages":"27-34"},"PeriodicalIF":1.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/36/fc/isd-53-27.PMC10060760.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9594429","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

Maxillary sinus volumetric changes in jet aircraft pilots: A multislice computed tomography pilot study. 喷气式飞机飞行员上颌窦容积变化:多层计算机断层扫描飞行员研究。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-03-01 DOI: 10.5624/isd.20220173

Yeda da Silva, Luciana Munhoz, José Rodrigues Parga Filho, Andreza Gomes Damasceno, Cesar Felipe França da Rosa, Eduardo Bilaqui Zukovski, Erik Zhu Teng, Cláudio Campi de Castro

{"title":"Maxillary sinus volumetric changes in jet aircraft pilots: A multislice computed tomography pilot study.","authors":"Yeda da Silva, Luciana Munhoz, José Rodrigues Parga Filho, Andreza Gomes Damasceno, Cesar Felipe França da Rosa, Eduardo Bilaqui Zukovski, Erik Zhu Teng, Cláudio Campi de Castro","doi":"10.5624/isd.20220173","DOIUrl":"https://doi.org/10.5624/isd.20220173","url":null,"abstract":"Purpose: This study evaluated maxillary sinus volume changes in military jet aircraft pilot candidates before and after the training program, in comparison with a control group, considering the effects of pressurization, altitude, and total flight hours, through multislice computed tomography.Materials and methods: Fifteen fighter pilots were evaluated before initiating the training program and after the final approval. The control group consisted of 41 young adults who had not flown during their military career. The volumes of each maxillary sinus were measured individually before and at the end of the training program.Results: When comparing the initial and final volumes in the pilots, a statistically significant increase was observed both in the left and right maxillary sinuses. When evaluating the average total volume of the maxillary sinuses (i.e., the average volume of the right and left maxillary sinuses together), a significant increase in the volume of the maxillary sinuses was observed in the pilot group when compared to the control group.Conclusion: The maxillary sinus volumes in aircraft pilot candidates increased after the 8-month training program. This may be explained by changes in the gravitational force, the expansion of gas, and positive pressure from oxygen masks. This unprecedented investigation among pilots might lead to other investigations considering paranasal sinus alterations in this singular population.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 1","pages":"53-60"},"PeriodicalIF":1.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/09/b8/isd-53-53.PMC10060761.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9594439","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: 1

Intraoral scanning of the edentulous jaw without additional markers: An in vivo validation study on scanning precision and registration of an intraoral scan with a cone-beam computed tomography scan. 无牙颌无附加标记的口腔内扫描:一项用锥形束计算机断层扫描进行口腔内扫描精度和配准的体内验证研究。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-03-01 DOI: 10.5624/isd.20220131

Julie Tilly Deferm, Frank Baan, Johan Nijsink, Luc Verhamme, Thomas Maal, Gert Meijer

{"title":"Intraoral scanning of the edentulous jaw without additional markers: An in vivo validation study on scanning precision and registration of an intraoral scan with a cone-beam computed tomography scan.","authors":"Julie Tilly Deferm, Frank Baan, Johan Nijsink, Luc Verhamme, Thomas Maal, Gert Meijer","doi":"10.5624/isd.20220131","DOIUrl":"https://doi.org/10.5624/isd.20220131","url":null,"abstract":"Purpose: A fully digital approach to oral prosthodontic rehabilitation requires the possibility of combining (i.e., registering) digital documentation from different sources. This becomes more complex in an edentulous jaw, as fixed dental markers to perform reliable registration are lacking. This validation study aimed to evaluate the reproducibility of 1) intraoral scanning and 2) soft tissue-based registration of an intraoral scan with a cone-beam computed tomography (CBCT) scan for a fully edentulous upper jaw.Materials and methods: Two observers independently performed intraoral scans of the upper jaw in 14 fully edentulous patients. The palatal vault of both surface models was aligned, and the inter-observer variability was assessed by calculating the mean inter-surface distance at the level of the alveolar crest. Additionally, a CBCT scan of all patients was obtained and a soft tissue surface model was generated using patient-specific gray values. This CBCT soft tissue model was registered with the intraoral scans of both observers, and the intraclass correlation coefficient (ICC) was calculated to evaluate the reproducibility of the registration method.Results: The mean inter-observer deviation when performing an intraoral scan of the fully edentulous upper jaw was 0.10 ± 0.09 mm. The inter-observer agreement for the soft tissue-based registration method was excellent (ICC=0.94; 95% confidence interval, 0.81-0.98).Conclusion: Even when teeth are lacking, intraoral scanning of the jaw and soft tissue-based registration of an intraoral scan with a CBCT scan can be performed with a high degree of precision.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 1","pages":"21-26"},"PeriodicalIF":1.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f0/e0/isd-53-21.PMC10060752.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9594433","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 radiology reporting status and recording frequency of reporting items in Korea. 韩国口腔放射学报告情况及报告项目记录频率。

IF 1.8

Imaging Science in Dentistry Pub Date : 2023-03-01 DOI: 10.5624/isd.20220152

Jinwoo Choi

{"title":"Dental radiology reporting status and recording frequency of reporting items in Korea.","authors":"Jinwoo Choi","doi":"10.5624/isd.20220152","DOIUrl":"https://doi.org/10.5624/isd.20220152","url":null,"abstract":"Purpose: This study investigated the current dental radiology reporting methods and the recording rate of 10 mandatory reporting items in Korea.Materials and methods: An original online survey created using Google Forms was distributed to dental practitioners. The survey asked about the participants' age, experience, workplace, use of radiologic equipment, radiology reporting methods, and recording reporting items.Results: In total, 354 responses were analyzed. Radiologic reporting in dental charts was the most commonly used method for each modality. Four out of 10 mandatory items were recorded at a high rate, but the remaining 6 items had substantially lower recording rates, often below 50%. The participants who reported radiographic findings through other separate methods had higher item scores than those who wrote findings in dental charts (P<0.05).Conclusion: Radiologic societies and dental associations should encourage the use of separate reports for radiographic examinations. Education regarding radiology reports and the justification for reporting items should be reinforced in dental schools, training courses on radiology, and the continuing education curriculum.","PeriodicalId":51714,"journal":{"name":"Imaging Science in Dentistry","volume":"53 1","pages":"35-42"},"PeriodicalIF":1.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/22/b4/isd-53-35.PMC10060759.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9609532","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

Ultrasonographic evaluation of the masseter muscle in patients with temporomandibular joint degeneration 颞下颌关节退行性变患者咬肌的超声评价

Imaging Science in Dentistry Pub Date : 2023-01-01 DOI: 10.5624/isd.20230134

Büşra Arıkan, Numan Dedeoğlu, Aydın Keskinrüzgar

引用次数: 0

Effects of the cone-beam computed tomography protocol on the accuracy and image quality of root surface area measurements: An in vitro study 锥形束计算机断层扫描对根表面积测量精度和图像质量的影响:一项体外研究

Imaging Science in Dentistry Pub Date : 2023-01-01 DOI: 10.5624/isd.20230090

Chanikarn Intarasuksanti, Sangsom Prapayasatok, Natnicha Kampan, Supassara Sirabanchongkran, Pasuk Mahakkanukrauh, Thanapat Sastraruji, Pathawee Khongkhunthian, Kachaphol Kuharattanachai, Kanich Tripuwabhrut

引用次数: 0

Assessment of infection control in oral radiology during the COVID-19 outbreak: An international collaborative study COVID-19暴发期间口腔放射学感染控制评估:一项国际合作研究

Imaging Science in Dentistry Pub Date : 2023-01-01 DOI: 10.5624/isd.20230141

Rafaela C Santos, Larissa S Araújo, Rafael B Junqueira, Eliana D Costa, Fernanda M Pigatti, Kıvanç Kamburoğllu, Pedro HB Carvalho, Manuela LB Oliveira, Sibele N Aquino, Francielle S Verner

引用次数: 0

Development and validation of a clinical phantom reproducing various lesions for oral and maxillofacial radiology research 用于口腔颌面放射学研究的再现各种病变的临床幻影的开发和验证

Imaging Science in Dentistry Pub Date : 2023-01-01 DOI: 10.5624/isd.20230129

Han-Gyeol Yeom, Jo-Eun Kim, Kyung-Hoe Huh, Won-Jin Yi, Min-Suk Heo, Sam-Sun Lee

引用次数: 0