Results 131 to 140 of about 3,344 (163)
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Incidental finding of an enlarged sella turcica on a lateral cephalogram
American Journal of Orthodontics and Dentofacial Orthopedics, 1996The lateral cephalogram is a film that is routinely used in orthodontics. Orthodontists should therefore be familiar with the normal radiographic appearance of the skull as seen on the lateral cephalogram. We present a case of an enlarged sella turcica that was discovered during routine orthodontic workup.
Bernard Friedland
exaly +3 more sources
Comparison of measurements from photographed lateral cephalograms and scanned cephalograms
American Journal of Orthodontics and Dentofacial Orthopedics, 2007In this study, we investigated whether a digital photograph of a lateral cephalometric radiograph can produce measurements as accurate as those from a digital image created with a flatbed scanner.Twenty pretreatment lateral cephalograms were randomly selected from the patient files at Chesterfield Royal Hospital. Each radiograph was photographed with a
Jill, Collins +3 more
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Comparison of orthopantomogram and lateral cephalogram for mandibular measurements
International Journal of Applied Dental Sciences, 2022 Dr. Diksha Koushal +1 more
exaly +2 more sources
A comparison of scanned lateral cephalograms with corresponding original radiographs
American Journal of Orthodontics and Dentofacial Orthopedics, 2006Digital cephalometric radiography is gaining popularity in orthodontic practices. However, few studies have compared measurements and superimpositions on analog radiographs with those made on scanned digital images. The objectives of this study were to evaluate distortion associated with scanning lateral cephalograms and printing to hard copy, and to ...
Lance Q, Bruntz +3 more
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Automatic analysis of lateral cephalograms based on high-resolution net
American Journal of Orthodontics and Dentofacial Orthopedics, 2023Cephalometric analysis is essential in orthodontic treatment, and it is progressing toward automatic cephalometric analysis. This study aimed to establish a cephalometric landmark detection model on the basis of a high-resolution net and improve the accuracy with high resolution.A total of 2000 lateral cephalograms were collected to construct a dataset,
Chang, Qiao +5 more
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Reliability of landmark recording on film and digital lateral cephalograms
The European Journal of Orthodontics, 1993The aims of this study were: (a) to evaluate reliability of landmark location in digital processed images of film cephalograms of varying quality with that obtained in the films, and (b) to evaluate the pattern of error in landmark location with the two techniques.
V, Macrì, A, Wenzel
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Quality Assessment of Lateral Cephalograms Amongst Radiologists and Orthodontists
British Journal of Orthodontics, 1994This study investigated technical errors in the production of lateral cephalograms necessitating a retake and the extent to which the retake, as ordered by the radiologist, actually produced a gain in quality as assessed by the orthodontist. All the rejected lateral cephalograms taken at the Department of Oral Radiology over a period of 1 year were ...
T W, Ortendahl +2 more
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Lateral Cephalograms: Why Do We Take Them?
Orthodontic Update, 2022Orthodontic indications for lateral cephalograms are diagnosis, prescription, prediction and research. Benefits of taking these radiographs must be weighed against the risks of radiation exposure. Various cephalometric analyses have been described, and these are commonly used for diagnosis and treatment planning, but unavoidable errors of both ...
Jennifer Haworth +2 more
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Role of lateral cephalograms in assessing severity and difficulty of orthodontic cases
American Journal of Orthodontics and Dentofacial Orthopedics, 2001To assess the role of lateral cephalometric films in the evaluation of orthodontic patients, 16 certified orthodontists examined 80 sets of dental casts and lateral cephalograms. The patients included 5 subgroups: Class I with mild crowding, Class II Division 2, Class III, open bites, and bimaxillary protrusion. A 5-point Visual Analogue Scale was used
E K, Pae +5 more
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A novel contour-based registration of lateral cephalogram and profile photograph
Computerized Medical Imaging and Graphics, 2018A contour-based automatic registration method of lateral cephalograms and profile photographs is proposed to facilitate the accurate measurement of anteroposterior (AP) position of maxillary central incisors relative to the forehead. There are mainly three steps in the proposed method.
Shumeng Wang +3 more
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