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 17 of 17 for “"Cranial base"”.
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Variation in cranial base flexion and craniofacial morphology in modern humans
Cranial base flexion has been used extensively as a baseline or standard from which to interpret differences 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 …
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Validity of manual and automated 2D structural superimposition on the anterior cranial base
Σκοπός: Σκοπός της παρούσας μελέτης ήταν η αξιολόγηση της ακρίβειας της χειρωνακτικής και αυτοματοποιημένης δισδιάστατης δομικής αλληλεπίθεσης στην πρόσθια κρανιακή βάση χρησιμοποιώντας την μέθοδο του Björk (2D). Οι δευτερεύοντες στόχοι περιλάμβαναν την εκτίμηση της επαναληψιμότητας, τη σύγκριση …
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Accuracy of ZeroBase™ Growth Prediction of a Burlington Sample
<p>The accuracy of ZeroBase™ orthodontic software program was tested using a sample of 14 male and 14 female untreated subjects classified as skeletal Class II pattern by the Burlington growth center. Growth predictions were carried out by ZeroBaseTM from ages 6,9,12,14,16 in males and 6,9,12 and …
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Nasal Septal Deviation and Nasofacial Skeletal Form: A Cross-Sectional CBCT Study of a 7-18 Year-Old Cohort
… the facial skeleton in the nasal region and the cranial base. Using geometric morphometric techniques, size and shape information was distilled from the landmark data. Multivariate regression analyses were used to assess the interactions between the septum and the nasofacial skeleton. Results: …
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Sex and Ancestry Estimation Using the Base of the Cranium
… and ancestral differences do exist in the cranial base of European and African Americans and individuals can be correctly classified at rates ranging from 75% to 80.4%, depending on the analysis.
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Sex and Ancestry Estimation Using the Base of the Cranium
… and ancestral differences do exist in the cranial base of European and African Americans and individuals can be correctly classified at rates ranging from 75% to 80.4%, depending on the analysis.
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A Statistical Evaluation of Class III Indicators in a Caucasian Population
… of seven Class III indicators (molar relation, cranial deflection, ramus position, porion location, Xi to Pt Vertical, Xi to SNa Vertical and Xi-S-Na angle) seventy cases with a Class III malocclusion and excessive facial depth were selected from the files of the Loma Linda University …
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Morphological Changes in Alveolar Bone Following Orthodontic Space Closure
… CBCTs were reconstructed with the anterior cranial base segmented. The original T1 and T2 volumes and the segmented anterior cranial base volumes were superimposed using voxel based registration method. The superimposed sagittal images of right and left maxillary incisor were evaluated for …
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Longitudinal Cephalometric Changes of Orthodontic Patients Evaluated Long-Term
… TN were examined to investigate changes in the cranial base, nasomaxillary complex, mandible, interach relationships, dental relationships, and the soft tissue integumental profile that occured an average of 23 years posttreatment. Two tailed t-tests (α = 0.05) were run to see whether the …
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Craniofacial morphology and the consequences of intentional cranial deformation among prehistoric Andean populations
This research examined the cultural practice of cranial deformation (annular and anteroposterior), and its effects on 27 craniometric measurements and biodistances among 350 prehistoric crania from the Azapa valley of northern Chile. Included among these 27 measurements were nine facial …
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Association of Nasal Septum Area and Deviation with Anteroposterior Maxillary Position and Facial Skeletal Asymmetries
… was created to assess nasal septum area with cranial base measurements association on the maxillary, mandibular, and maxillo-mandibular measurements (multivariate stepwise regression). This showed a significant association (p<0.05) in females for SNA (R²=23.80%), total maxillary length …
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The correlation between cranial fractures and brain trauma: a retrospective study
… concern. TBI has been noted to co-occur with cranial fractures, however this is not always case. At present, there is a gap in literature regarding the correlative relationship between the presence of cranial fracture and brain trauma. The knowledge and understanding of this correlation is …
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Craniofacial Changes Following Nonextraction Orthodontic Treatment: A Long-Term Cephalometric Analysis
… were examined to investigate changes in the cranial base, midface, maxilla, mandible, maxillomandibular relationships, dental relationships, and the soft tissue profile that occurred at an average of 12.4 years posttreatment. Descriptive and inferential statistics were calculated to see …
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Η επίδραση ορθοπεδικών δυνάμεων στο κρανιοπροσωπικό σύμπλεγμα και την κροταφογναθική διάρθρωση
… glenoid fossa in a downward direction. 4. The cranial base angle in the patients treated with activator diminished, while in the patients treated with chin-cup remained analtered, or increased slightly. 5. The growth of the head of the condyle in the patients treated with chin-cup seemed to be …
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Προγραμματισμός και εφαρμογή μεθόδου διαδιάστατης μελέτης κεφαλομετρικών ακτινογραφιών με ηλεκτρονικό υπολογιστή
… direction. b) The maxilla and the frontal cranial base have a counter clockwise direction.c) The alveolar processes are higher than in the norms. d) The distance between Nasion and Articulare is larger than in the norms.
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TEMPOROMANDIBULAR JOINT DISORDERS AND NASAL SEPTUM DEVIATION IN DENTOFACIAL DEFORMITY PATIENTS
… will aid in the development of a phenomics database to allow for subsequent genotyping and gene expression evaluation from patient saliva and masseter muscle samples that were obtained at the time of corrective orthognathic surgery. Methods: Pre-surgical posterio-anterior (PA) cephalograms, …
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Endocranial volume and shape variation in early anthropoid evolution
… evolution, by evaluating variation in the endocranial morphology of extant primates and their fossil representatives. I use a comparative approach to examine the relationships between interspecific adult endocranial volume and shape, and brain evolution and cranial form among extant primate …