Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Cephalometric radiographs"”.
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Treatment Effects of Incisor Positioning on Anterior Tooth Display
… pretreatment (TI) and posttreatment (T2) lateral cephalometric radiographs of existing patient records.Results showed a significant relationship between starting ATD and ATD change during treatment for both adults (P = ,006) and adolescents (P
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Influence of Outdoor Air Quality on Maxillofacial Growth and Development
… differences in air quality. Initial lateral cephalometric radiographs were collected from 400 patients in each area. The combined 800 subjects' addresses were geocoded and ambient air pollution exposure was calculated based on air quality statistics from the California Air Resources Board, …
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Variation in cranial base flexion and craniofacial morphology in modern humans
… in craniofacial growth and morphology. Lateral cephalometric radiographs of 414 adults representing seven samples from around the world were compared for variation in cranial base and facial morphology. The samples represent Australian Aboriginal, New Zealand Maori ( Polynesian ), Thai, Chinese, …
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The effect of single and fractionated dose radiation on craniofacial growth in rats
… sham irradiation. Weekly weight, length and cephalometric radiographs were taken of each animal from week one to week eight, and again at twenty-one weeks when the animals were killed. Craniofacial growth changes were determined by measurement of sequential lateral cephalographs. Post-mortem …
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A Pilot Study on the Evaluation of Short Term Effects of Jasper Jumper Therapy
<p>Lateral cephalometric radiographs were obtained for ten patients treated with Jasper Jumper appliances from three locations. Pre and post-appliance measurements were compared to determine the cephalometric effects seen in this group of patients. All patients in this study exhibited mesofacial to …
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Assessment of predoctoral orthodontic education amongst U.S. dental schools : a pilot study
… to have wire bending, interpretation of lateral cephalometric radiographs, and fabrication of orthodontic appliances as exercises. Overall, the results of this study suggest that certain dental school characteristics, such as having more didactic hours, are significantly associated with more …
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The Influence of Outdoor Air Quality on Vertical and Transverse Dental Dimensions
… measurements made from subjects’ initial lateral cephalometric radiographs and study models were recorded for comparison of dental and skeletal morphology. In addition, residential history and other factors were evaluated by questionnaire to account for potential confounding variables. Statistical …
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Analysis of the Relationship Between Growth Hormone Receptor Polymorphism rs6180 and Craniofacial Morphological Changes Associated with Herbst Appliance Therapy
… of orthodontic treatment. An initial lateral cephalometric radiograph was taken along with two buccal cheek swabs. The cells obtained have undergone DNA isolation with the Puregene method in microcentrifuge tubes (Gentra Systems, Minneapolis, MN). Upon termination of functional appliance …
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Bone Mineral Density Analysis for Evaluation of Cervical Vertebral Maturation
… the current CVM method based on two dimensional cephalometric radiographs may not fully include all factors that may be involved in bone maturation. For instance, the current CVM cannot account for changes of bone mineral density (BMD), which result from active bone remodeling during growth. …
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Use of CVM Stages in Assessment of Young Orthodontic Patients to Estimate Growth Potential
… has remaining. The purpose of this retrospective cephalometric study was to determine whether the amounts of in-treatment facial growth differ significantly by sex and by cervical vertebral maturation (CVM) stage. The sample consisted of 133 Class II division 1 patients from a single private …
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Ricketts Analysis Using Conventional and DolphinTM Generated CBCT Lateral Cephs
… each imaging modality. Twenty-five lateral cephalometric radiographs were selected retrospectively from the records of patients of the LLUSD Graduate Orthodontic Clinic who had both CBCT and Sirona digital lateral cephalograms. Radiographs were excluded from the study if they displayed …
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Bimaxillary Protrusion in Trinidad and Tobago Population: Prevalence, Features and Management
… was conducted using 109 standardised lateral cephalometric radiographs from patients receiving orthodontic treatment at the University of The West Indies dental hospital between September 2015 to March 2019.These patients gave consent for their records to be used.<br/><br/><b>Results</b>: …
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The evaluation of the reproducibility of mock surgery using plaster model and lateral cephalometric radiograph in sagittal split ramus osteotomy
… predicting outcome of surgery through lateral cephalometric radiograph and mock surgery using plaster model, surgical plan is established. After the surgery, the outcome of surgery is determined by analyzing the lateral cephalometric radiograph. In this study, by conducting the …
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Volumetric, planar and linear airway comparison after maxillomandibular advancement surgery
… cephalograms which were then used for linear cephalometric measurements. The 3D volume was also utilized to find cross-sectional measurements from axial slices taken from the cone-beam images at specific points: PNS, CV1, CV2 and CV3. Finally, CBCT images were used to find volume measurements …
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Craniofacial Changes Following Nonextraction Orthodontic Treatment: A Long-Term Cephalometric Analysis
<p>Long-term posttreatment cephalometric changes from late adolescence into early adulthood were analyzed in this study. Lateral cephalometric radiographs from a sample of 30 Class II division 1 Caucasian females treated without extractions were evaluated at posttreatment (mean age = 15.9 years) …
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The occlusal plane inclination relative to craniofacial form: A cephalometric investigation
… relative to various skeletal and dental cephalometric parameters. Methods: A sample of 105 pretreatment cephalometric radiographs, in subjects with a range of skeletal and dental morphological characteristics, was appraised. Differences in the Op° and AP measurements of pogonion …
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Assessment of Orthodontic Treatment Results and Comparison between Fixed Lingual and Labial Appliances
… records (study casts, panoramic and lateral cephalometric radiographs, and extraoral and intraoral photographs) of 521 patients treated in the IUSD Graduate Orthodontic Clinic were evaluated. Treatment outcomes were assessed for a 3-year period using the ABO Grading System and IUSD …
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A Randomised Clinical Trial of the Effectiveness of Orthodontic Treatment between the 0.018-inch and the 0.022-inch Slot Conventional Ligation Bracket Systems
… score reduction (5) incisor inclination, using cephalometric radiographs before and near end of treatment (6) anchorage loss (bilateral premolar extraction cases only), using 3D digital dental models with OrthoAnalyzer software (3Shape, Copenhagen, Denmark) (7) patient perception using the …
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Riabilitazione protesica ed implanto-protesica di pazienti in età evolutiva affetti da Displasia Ectodermica
… clinically every month to fit prostheses. Cephalometric radiographs were taken every 6 month with the prostheses in place in order to evaluate correct pattern of growth. Cephalometric measurements were realized and used to evaluate the effect of rehabilitation on craniofacial growth. …