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Relevant bibliographies by topics / Orthodontics and Orthodontology

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Dissertations / Theses

Academic literature on the topic 'Orthodontics and Orthodontology'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Dissertations / Theses on the topic "Orthodontics and Orthodontology"

1

Porter, Jason L. "Comparison of intraoral and extraoral scanners on the accuracy of digital model articulation." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/4881.

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Introduction: Orthodontists increasingly rely on digital models in clinical practice. The ability of modern scanners to articulate digital models must be scientifically evaluated. Methods:Twenty five digital articulated models were produced from four digital scanners in five experimental groups. The resulting inter-arch measurements were compared to the gold standard. An acceptable range of 0.5mm more or less than the gold standard was used for evaluation. Results: iTero® and iTero® Element yielded all acceptable inter-arch measurements. The 3M™ True Definition and Ortho Insight 3D® with Regis

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2

Poss, Jordan Lee. "Interarch tooth-size discrepancies in patients with normal occlusions." Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/2610.

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Objective: The purpose of this study was to use the University of Iowa Meredith Growth Study to limit selection bias in selecting subjects to determine interarch tooth-size discrepancies (ITSD) by measuring and comparing the mesiodistal widths of maxillary and mandibular teeth. Methods: Thirty-two males and twenty-four females were selected from the Iowa Growth Study. They were selected on the basis of normal occlusions which were defined as Class I molars with mild (<2mm crowding/spacing) or moderate (2-4mm crowding/spacing)

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3

Bonner, Laura Lynn. "Sexual dimorphism in symphyseal rigidity: a longitudinal study." Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/2443.

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Objective: The purpose of this study to assess the relationship between masticatory function and symphyseal biomechanical properties using a longitudinal sample. Known differences in male and female maximum bite forces manifest during adolescence. If symphyseal bending rigidity is affected by function during ontongeny, we would expect variation in male and female growth allometries of certain biomechanical properties of the symphysis. Methods and Materials: Subjects were chosen from the Iowa Growth Study records for comple

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4

Bilbo, Eve Erin. "Long-term skeletal effects of high-pull headgear plus fixed appliances: a cephalometric study." Thesis, University of Iowa, 2014. https://ir.uiowa.edu/etd/4578.

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5

Swenson, Brendon James. "Interproximal tooth wear: an in vitro pilot study." Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/2641.

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Objective: The purpose of this study was to develop a method of accurately quantifying the wear facet, and relating the wear facet size to the forces applied by the Iowa Tooth Wear Machine. Methods: Ten un-erupted third molars were used for this study. The teeth were mounted in the Iowa Tooth Wear Machine with opposing proximal surfaces. Samples were run with a 0.250mm stroke length for 645,120 cycles under 5 pounds of weight. An optical scanner was used to digitize the initial and final interproximal wear facets. AnSur© software

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6

Howe, Sara Christine. "Phenotypic characterization of Class II malocclusion." Thesis, University of Iowa, 2012. https://ir.uiowa.edu/etd/2896.

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Background: Genes predispose to disproportionate growth of the human face resulting in unbalanced maxillo-mandibular relationships and severe malocclusion. The success of genetic studies aimed at identifying causative genes for complex traits such as malocclusion depends greatly on a well-characterized phenotype to reduce heterogeneity. Purpose: The purpose of this study is to characterize the skeletal and dental variation present in Class II malocclusion into distinct homogenous phenotypic groups to help empower future genetic studie

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7

Ray, Alison. "Phenotypic characterization of class II malocclusion using two dimensional photographic measurements." Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/2614.

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Purpose: The purpose of this study is to characterize class II malocclusion phenotypes from orthodontic photographs in an effort to understand variation in the vertical and transverse dimension from the frontal view and also to identify distinct subgroups of homogenous phenotypes that could be correlated to genetic variation in an effort to identify the genetic causes of class II malocclusion phenotypes. Materials and Methods: The study sample included adult class II patients who were seeking treatment at the University of Iowa Orthodontic Graduate Clinic, University of Iowa Hospital Dentistry

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8

McManus, Michelle Marie. "Effect of mini-screw maximum insertion torque on skeletal orthodontic anchorage." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/552.

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Objective: The primary objective of this study was to examine the effect that maximum insertion torque has on force resistance and stability of titanium screws in cadaver maxillae and mandibles. Materials and Methods: Forty-eight cadaver maxillary and mandibular jaw quadrants were obtained Two titanium mini-screws were placed in each jaw quadrant and maximum insertion torque was measured. Each mini-screw was subjected to tangential force application oriented perpendicular to placement of the mini-screw and parallel to the occlusal plane. The force applied at each deflection was measured up to

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9

Pappas, Nicholas Harry Barr. "Expanding the occlusal phenotype of non-syndromic orofacial clefting." Thesis, University of Iowa, 2018. https://ir.uiowa.edu/etd/6243.

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Introduction: Patients with oral clefts can present with variable occlusal anomalies often thought to be a result of surgical intervention, which makes it difficult to characterize the occlusal phenotypic spectrum of orofacial clefting. Little research has been performed on the prevalence of occlusal anomalies and whether the prevalence of these anomalies is elevated in unaffected relatives of individuals with overt oral clefts. To date, this study is the largest international collection of children with non-syndromic clefts, their relatives and controls that aim to characterize the spectrum o

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10

Smith, Nicholas Rindels. "Interproximal tooth wear: an in vivo pilot study." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/1084.

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The purpose of this pilot study was to develop a method to quantify the surface area of interproximal wear facets present in the human dentition. Another aim was to investigate the reliability of this method and possible correlations between the amount of interproximal tooth wear and vertical craniofacial morphology. The study was carried out on 24 adolescent individuals immediately prior to orthodontic treatment. Following interproximal contact separation of one week, interproximal impressions were taken with polyvinyl siloxane and a positive stone model was fabricated with type IV dental sto

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