نتایج جستجو برای: mandible position and size
تعداد نتایج: 16885937 فیلتر نتایج به سال:
An elderly male presented to the ENT, Outpatient Department at Abbasi Shaheed Hospital (ASH) with a mass on the left side of the face and lower jaw for 8 - 9 years. It was of a tennis ball size. No treatment was sought by him during those years. A diagnosis of benign fibro-osseous lesion of the mandible was made. Later the histopathology proved the same. he first occurrence in a male gender and...
statement of the problem: most of the soft tissue calcifications within the head and neck region might not be accompanied by clinical symptoms but may indicate some pathological conditions. purpose: the aim of this research was to determine the prevalence of soft tissue calcifications in cone beam computed tomography (cbct) images of mandibular region. materials and method: in this cross sectio...
Purpose. This study was carried out on an Iranian population aiming to investigate mental foramen position relative to inferior border of mandible and skeletal midline and its gender and age differences on CBCT projections. Materials and Methods. A number of 180 CBCT images of patients were analyzed in different planes (tangential, cross-sectional, and axial). The distances from the superior bo...
It has been maintained that because of large adenoids, nasal breathing is obstructed leading to mouth breathing and an 'adenoid face', characterized by an incompetent lip seal, a narrow upper dental arch, increased anterior face height, a steep mandibular plane angle, and a retrognathic mandible. This development has been explained as occurring by changes in head and tongue position and muscula...
Statement of Problem: Subtraction is a newly presented radiography technique to detect minor density changes that are not visible by conventional radiography.Purpose: The aim of this In-vitro study was to evaluate the efficacy of photoshop subtraction software for detecting minor density changes between two dental images.Materials and Methods: In this research, five dried human mandibles were h...
target tracking is the tracking of an object in an image sequence. target tracking in image sequence consists of two different parts: 1- moving target detection 2- tracking of moving target. in some of the tracking algorithms these two parts are combined as a single algorithm. the main goal in this thesis is to provide a new framework for effective tracking of different kinds of moving target...
Morphological adaptation to altered position of the mandible was investigated in 19 young adult rhesus monkeys (n = 10 experiment and 9 control). The experimental animals had a bite-splint cemented to the maxillary dentition which opened the bite interincisally by 15 mm and was worn continuously for 48 weeks. Lateral radiographic cephalograms were taken prior to the experiment and at 12-week in...
The present study was planned to evaluate the position of the mandibular foramen (MF) and the course of the inferior alveolar nerve in 12 right and 14 left cadaveric hemimandibles. The soft tissue, including the muscle attachments of the mandible, was cleaned and the inferior alveolar neurovascular bundle was dissected up to the MF. The distances from the MF to the angle, symphysis menti, 3rd m...
It is generally assumed that children with posterior crossbites have abnormal mandibular movements; however, this assumption has not been clearly evaluated. The purpose of this investigation was to study the movements and the resting position of the mandible in 2 samples of 30 subjects, one aged 10 to 14 years with right posterior crossbite, the other aged 10 to 15 years with normal occlusion. ...
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