Ghost Images: Objects Outside the Image Layer that are not Entirely Excluded from the Panoramic Radiograph

It is evident that hyperdontia is more common in the permanent dentition than in the primary. There is a considerable difference between males and females in the prevalence of these teeth in permanent dentition; hyperdontia is twice as common in males as in females. However, this approximation varies in terms of location, other associating syndromes that may be present, and the ethnicity of the individual. In terms of ethnicity, it can be seen that hyperdontia is in fact less common in Caucasian than in Asian populations. There is evidence to show that an individual is more likely to have hyperdontia if other members of their family also have the condition. Hence the present study was planned for evaluation of occurrence of hyperdontia in non-syndromic population from Bihar Region. The present study was planned in Public Health Dentistry, Patna Dental College and Hospital, Patna, Bihar. Total 195 patients referred to Department of Dentistry were evaluated in the present study. Panoramic radiographs and clinical records of patients above the age of 18 years and without any syndromic features were selected for the study. All the radiographs were examined for the presence of supernumerary teeth, their location, morphology, and number. Morphologically, teeth were classified as conical, tuberculate, supplemental, and odontoma. Early diagnosis of dental anomalies can prevent some esthetic, orthodontic, and periodontal problems, and knowledge of the prevalence and distribution of the anomalies may help clinicians to the detection of these anomalies at early stages. Our study evaluated the prevalence of selected dental anomalies; future studies should investigate the prevalence of dental anomalies of all types. Keywords: Hyperdontia, non-syndromic, panoramic radiograph, supernumerary teeth, etc.

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OSTEOMYELITIS KRONIS MANDIBULA PASCA EKSTRAKSI GIGI DISERTAI BELL’S PALSY

ODONTO Dental Journal ◽

10.30659/odj.6.0.52-55 ◽

2019 ◽

Vol 6 ◽

pp. 52

Author(s):

Yayun Siti Rochmah

Keyword(s):

Facial Nerve ◽

Panoramic Radiograph ◽

Surrounding Tissue ◽

Facial Nerve Paralysis ◽

Muscle Paralysis ◽

Nerve Paralysis ◽

The Right ◽

Spread Of Infection ◽

Nerve System ◽

Intravenous Ketorolac

Background: Chronic osteomyelitis mandibula is one of the complications from dental extraction. Inadequate wound handling can have an impact on the spread of infection in the surrounding tissue like nerve which results in facial nerve paralysis. The purpose is to present a rare case that facilitative nerve paralysis as a result of the spread of osteomyelitis infectionCase Management: A 69 years old woman with chief complains numbness onher lips accompanied by pus out beside the lower teeth. No sistemic disease. Panoramic radiograph showed abnormal bone-like sequester. Extraoral examination appeared the bluish color on the right cheek and there was right facial muscle paralysis. Debridement, sequesterectomy by general anesthesia and medication using ceftriaxone intravenous, ketorolac injection, multivitamin, and corticosteroid, physiotherapy for facial nerve paralyze, also.Discussion: Pathogenesis mandibular osteomyelitis involves contiguous spreadfrom an odontogenic focus infection. The bacteria produce an exotoxin, which, while unable to cross the blood-brain barrier, can have deleterious effects on thePeripheral Nerve System (Fasialis Nerve) in up to 75% of cases, with the severity of presentation correlating with the severity of the infection.Conclusion: Chronic mandibular osteomyelitis can spread the infection to around another anatomy oral cavity like facials nerves.

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Healing Of A Large Osteolytic Mandibular Lesion – A Case Report

Global Dentistry ◽

10.36879/gsl.dcr.2018.00008 ◽

2018 ◽

Author(s):

Ingrid Różyło-Kalinowskav ◽

Karolina Sidor

Keyword(s):

Case Report ◽

Female Patient ◽

Surgical Approach ◽

Orthodontic Treatment ◽

Incidental Finding ◽

Osteolytic Lesion ◽

Panoramic Radiograph ◽

Endodontic Treatment ◽

Osteolytic Lesions

The purpose of this article was to present a case report of 11–year old female patient with a large osteolytic mandibular lesion which healed after endodontic treatment. The patient was referred for radio diagnostics due to an incidental finding of a large osteolytic lesion of the area of the left lower first and second premolars in the panoramic radiograph taken before orthodontic treatment. CBCT was performed and the patient asked to have teeth 33-35 treated by endodontics before surgery. The patient missed the surgical appointment and when she reappeared several months later, the lesion showed signs of healing thus surgery were aborted. The presented case testifies to the observation that even large osteolytic lesions can heal after endodontic treatment without surgical approach.

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Ghost images determination for the stereoscopic imaging channel of SIMBIOSYS for the BepiColombo ESA mission

10.1117/12.896896 ◽

2011 ◽

Cited By ~ 2

Author(s):

Vania Da Deppo ◽

Gabriele Cremonese ◽

Giampiero Naletto

Keyword(s):

Stereoscopic Imaging ◽

Ghost Images

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Use of the panoramic radiograph in endodontics involving a patient with severe facial trauma

Journal of Endodontics ◽

10.1016/s0099-2399(80)80025-2 ◽

1980 ◽

Vol 6 (6) ◽

pp. 618-620 ◽

Cited By ~ 1

Author(s):

Ralph Bellizzi

Keyword(s):

Panoramic Radiograph ◽

Facial Trauma

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Styloid process elongation and calcification in subjects with tmd: clinical and radiographic aspects

Brazilian Dental Journal ◽

10.1590/s0103-64402012000400023 ◽

2012 ◽

Vol 23 (4) ◽

pp. 443-450 ◽

Cited By ~ 20

Author(s):

Kelly Machado de Andrade ◽

Carolina Almeida Rodrigues ◽

Plauto C. Aranha Watanabe ◽

Marcelo Oliveira Mazzetto

Keyword(s):

Orofacial Pain ◽

Panoramic Radiograph ◽

Styloid Process ◽

Eagle’S Syndrome ◽

Linear Measurements ◽

Panoramic Radiographs ◽

Elongated Styloid Process ◽

Cephalometric Radiograph ◽

Lateral Cephalometric Radiograph ◽

Process Length

Knowledge of the Eagle's syndrome shows that its symptoms can be very easily confused with other types of craniomandibular disorders, especially temporomandibular disorders (TMD). The aim of this study was to find a possible correlation between the presence of TMD and elongation of the styloid process as well relate to presence of calcification of the stilohyoid chain. Fifty patients with TMD, confirmed from the RDC/TMD, were examined clinically and radiographically. Radiographic documentation consisted of digital panoramic radiograph and digital lateral cephalometric radiograph. Radiocef software (Radiomemory) was used for the analysis of radiographs by means of specific cephalometric tracing and linear measurements of the styloid process. Each radiograph was traced and measured three times with intervals of 1 month to spread the error. Statistical analysis was performed by Pearson's test (p=0.001) using Biostat 4.0 statistical software. Result showed an incidence of 76% elongation of the styloid process in the sample. There was a correlation between the bilateral measures taken in panoramic radiographs (?<0.001) and also for measures of styloid process length carried out in different panoramic radiographs and lateral cephalometric radiographs (?<0.001). It was concluded that there is prevalence of elongated styloid process in patients with TMD. However, no relationship was found between measurements on the stylohyoid chain and symptoms of headache, orofacial pain, tinnitus and vertigo.

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Multi-Task Deep Learning Model for Classification of Dental Implant Brand and Treatment Stage Using Dental Panoramic Radiograph Images

Biomolecules ◽

10.3390/biom11060815 ◽

2021 ◽

Vol 11 (6) ◽

pp. 815

Author(s):

Shintaro Sukegawa ◽

Kazumasa Yoshii ◽

Takeshi Hara ◽

Tamamo Matsuyama ◽

Katsusuke Yamashita ◽

...

Keyword(s):

Deep Learning ◽

Dental Implant ◽

Area Under The Curve ◽

Treatment Phase ◽

Panoramic Radiograph ◽

Radiographic Images ◽

Treatment Stage ◽

Prefectural Central Hospital ◽

Dental Panoramic Radiograph

It is necessary to accurately identify dental implant brands and the stage of treatment to ensure efficient care. Thus, the purpose of this study was to use multi-task deep learning to investigate a classifier that categorizes implant brands and treatment stages from dental panoramic radiographic images. For objective labeling, 9767 dental implant images of 12 implant brands and treatment stages were obtained from the digital panoramic radiographs of patients who underwent procedures at Kagawa Prefectural Central Hospital, Japan, between 2005 and 2020. Five deep convolutional neural network (CNN) models (ResNet18, 34, 50, 101 and 152) were evaluated. The accuracy, precision, recall, specificity, F1 score, and area under the curve score were calculated for each CNN. We also compared the multi-task and single-task accuracies of brand classification and implant treatment stage classification. Our analysis revealed that the larger the number of parameters and the deeper the network, the better the performance for both classifications. Multi-tasking significantly improved brand classification on all performance indicators, except recall, and significantly improved all metrics in treatment phase classification. Using CNNs conferred high validity in the classification of dental implant brands and treatment stages. Furthermore, multi-task learning facilitated analysis accuracy.

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