Cephalometric Assessment of Effect of Head Rotation toward Focal Spot on Lateral Cephalometric Radiographs
نویسندگان
چکیده
منابع مشابه
The effect of head rotation on cephalometric radiographs.
The aim of this study was to identify the potential projection errors of lateral, postero-anterior (PA) and submentovertex (SMV) cephalometric radiographs due to head rotation in the vertical z-axis. For this investigation, a complete human dry skull of an adult was used. The skull was rotated from 0 to +/-14 degrees at 2 degree intervals. A vertical axis, the z-axis, was used as the rotational...
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The purpose of this study was to evaluate the effect of pharyngeal flap surgery on subsequent facial growth in patients with cleft lip and/or palate. Pharyngeal flap surgery is used in such patients to partially obliterate the velopharyngeal port, reducing hypernasal speech. Thirty-four patients (18 with cleft palate only, 16 with unilateral cleft lip and palate) were selected from the longitud...
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We measured the gonial angle (GA) on panoramic radiography (PR) and analyzed the correlation between the GA on PR and lateral cephalometric radiography (LCR). In total, 49 PR films and LCR films from dentate young adults were evaluated. Orthodontists plotted four points (articulare, menton, posterior gonion, and lower gonion) on the PR and carefully traced them. Using a protractor, two radiolog...
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BACKGROUND Radiographic examination is considered 'justified' only when detection of a condition that would change the mechanisms and timing of treatment is possible. Radiographic safety guidelines have restricted the indication of lateral cephalometric radiographs (LCRs) to presence of distinct skeletal Class II or Class III. However, they are taken routinely in clinical practice and considere...
متن کاملCorrespondence between subjective and linear measurements of the palatal airway on lateral cephalometric radiographs.
OBJECTIVE To evaluate the correlation between and significance of 2 methods of palatal airway assessment on lateral cephalographs. DESIGN Diagnostic lateral cephalometric imaging study that took place from January 1, 2006, to December 31, 2007. SETTING American University of Beirut Medical Center. PATIENTS Children with chronic mouth breathing referred by a pediatric otolaryngologist for ...
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ژورنال
عنوان ژورنال: The Journal of Contemporary Dental Practice
سال: 2013
ISSN: 1526-3711
DOI: 10.5005/jp-journals-10024-1300