Results 161 to 170 of about 4,801 (212)

A Rare Case of Bilateral Maxillary Supplemental Lateral Incisors. [PDF]

Cureus
Singla D, Manchanda Y, Sachdeva M, Bhangu H, Dua V.   +4 more
europepmc   +1 more source

Relationship Between Facial Parameters and Mandibular Third Molar Impactions: A Radiographic Cross-Sectional Study. [PDF]

Cureus
Breh R, Sarangi S, Shankar R.
europepmc   +1 more source

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Development of the 3D-cephalogram: A technical note

Journal of Cranio-Maxillo-Facial Surgery, 2007
The authors developed the 3D-cephalogram via combination of 3D-CT and cephalometric analysis.The 3D-cephalogram can directly express cephalometric data on the surface of skeletal structures in a manner similar to a conventional cephalogram.This analysis revealed complex facial asymmetries in particular, on either side of the mandible.
Masaaki Kosaka, Hiroshi Kamiishi
exaly   +3 more sources

Estimating Cervical Vertebral Maturation with a Lateral Cephalogram Using the Convolutional Neural Network

Journal of Clinical Medicine, 2021
Recently, the estimation of bone maturation using deep learning has been actively conducted. However, many studies have considered hand–wrist radiographs, while a few studies have focused on estimating cervical vertebral maturation (CVM) using lateral ...
Van Nhat Thang Le, Il-Seok Oh, Dae-Woo Lee   +2 more
exaly   +2 more sources

Automatic landmarking of cephalograms

Computers and Biomedical Research, 1989
This paper presents an algorithm for automatically locating certain characteristic anatomical points called landmarks on cephalograms (skull X-rays). These landmarks are used by orthodontists in diagnosis and treatment planning. The algorithm uses digital image processing and feature recognition techniques to locate the landmarks.
S, Parthasarathy, S T, Nugent, P G, Gregson, D F, Fay   +3 more
openaire   +2 more sources

Comparison of measurements from photographed lateral cephalograms and scanned cephalograms

American Journal of Orthodontics and Dentofacial Orthopedics, 2007
In 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, Anwar, Shah, Caroline, McCarthy, Jonathan, Sandler   +3 more
openaire   +2 more sources

Knowledge-Based Landmarking of Cephalograms

Computers and Biomedical Research, 1985
Orthodontists have defined a certain number of characteristic points, or landmarks, on X-ray images of the human skull which are used to study growth or as a diagnostic aid. This work presents the first step toward an automatic extraction of these points. They are defined with respect to particular lines which are retrieved first. The original image is
A D, Lévy-Mandel, A N, Venetsanopoulos, J K, Tsotsos   +2 more
openaire   +2 more sources

Landmark errors on posteroanterior cephalograms

American Journal of Orthodontics and Dentofacial Orthopedics, 2016
It is important to reduce the method errors when evaluating posteroanterior cephalograms to see either small deviations from normal or transverse changes caused by orthodontic treatment. The aim of this study was to determine horizontal and vertical intraexaminer and interexaminer agreement in localization of landmarks in posteroanterior cephalograms ...
Feyza Ulkur, Fulya Ozdemir, Derya Germec-Cakan, E. Cigdem Kaspar   +3 more
openaire   +2 more sources

Computer-aided automated landmarking of cephalograms

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthop�die, 1998
The computer-aided method presented is able to interpret and measure radiological structures automatically and reproducibly on a large number of randomly selected lateral head films of different film quality. For example the hard and soft tissue expression of the profile is used to discuss method, application and disadvantages.
T, Stamm, H A, Brinkhaus, U, Ehmer, N, Meier, F, Bollmann   +4 more
openaire   +2 more sources

Landmarking of cephalograms using a microcomputer system

Computers and Biomedical Research, 1990
Landmarks, or certain characteristic reference points, on cephalograms are used as a diagnostic aid employed in treatment planning by orthodontists. This work presents an algorithm for recognizing some anatomical features and locating landmarks on lateral skull X rays (cephalograms) using digital image processing and feature recognition techniques.
W, Tong, S T, Nugent, P H, Gregson, G M, Jensen, D F, Fay   +4 more
openaire   +2 more sources