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Full-Text Articles in Medicine and Health Sciences
Microstructure And Mechanical Properties Of Nickel-Free And Nickel-Containing Stainless Steel Orthodontic Wires, Amanda Olejniczak
Microstructure And Mechanical Properties Of Nickel-Free And Nickel-Containing Stainless Steel Orthodontic Wires, Amanda Olejniczak
Master's Theses (2009 -)
Introduction: In orthodontics, contact dermatitis caused by nickel allergy should be of concern with the number of nickel-containing appliances and wires used. Stainless steel archwires are commonly used throughout orthodontic treatment. With the release of nickel from these wires, some manufacturers have turned to nickel-free stainless steel alternatives. The goal of this research was to compare nickel-free stainless steel with traditional stainless steel archwires with regard to mechanical properties and microstructure. Materials and Methods: Nickel-free stainless steel and regular stainless steel archwires from four companies were included. Five random samples of each wire, vertically mounted in fast-set acrylic, were indented …
An Investigation Into The Bonding Properties Of New Generation Ceramic Brackets As Compared To A Stainless Steel Bracket, Ami Inoue
Master's Theses (2009 -)
Introduction: More patients are seeking esthetic alternatives for their orthodontic treatment options, which has led to increased use of ceramic brackets in recent years. These brackets were marketed before independent scientific research was completed. Many of the early ceramic brackets used a silane coupling agent to allow for a chemical bond between the bracket and the adhesive resin. Early reports from clinicians of increased bond strengths and iatrogenic tooth damage after bracket removal were common. Manufacturers have made changes to their base designs, relying more on mechanical retention for bond strength. The goal of this study was to test the …
Dimensional Changes Of Facial Soft Tissue Associated With Rapid Palatal Expansion, Peter Charles Longo
Dimensional Changes Of Facial Soft Tissue Associated With Rapid Palatal Expansion, Peter Charles Longo
Master's Theses (2009 -)
Introduction: Orthodontic treatment demands excellent outcomes in both function and esthetics. Despite the popularity of rapid palatal expansion in orthodontic treatment, few studies have examined its consequences on facial soft tissue using direct anthropometric measurements. The primary goal of this study was to determine facial soft tissue changes immediately following rapid palatal expansion. Materials and Methods: Twenty-eight patients (age range, 8-17 years) attending Marquette Dental School Orthodontic Post-Graduate Clinic were enrolled in the study. Facial soft tissue measurements were taken with digital calipers at two separate time points (T0: initial exam and T1: thirty days following expansion); measurements were recorded …
Mandibular Incisor Proclination Variability During Class Ii Correction, James Redford
Mandibular Incisor Proclination Variability During Class Ii Correction, James Redford
Theses and Dissertations
Background: Lower incisor proclination has been shown to increase during Class II correction with appliances such as the Forsus. This lower incisor flaring shows great variability among patients. The purpose of this study was to evaluate the effects of Class II severity, mandibular growth, and occlusal plane rotation on lower incisor flaring in patients treated with the Forsus appliance. Materials and Methods: 121 records of Class II patients treated with the Forsus appliance were analyzed retrospectively. Cephalograms were traced at three time points. ANOVA was used to compare changes in cephalometric measurements over time. Pearson’s correlation was used to test …
Orthodontic Marketing Through Social Media Networks: The Patient And Practitioners' Perspective, Kristin Nelson
Orthodontic Marketing Through Social Media Networks: The Patient And Practitioners' Perspective, Kristin Nelson
Theses and Dissertations
Objective: The aim of this study was to (1) assess the orthodontic patient and practitioner use and preferences of social media, and (2) to investigate the potential benefit of social media in marketing and communication strategies in orthodontic practices. Material and Methods: A survey was distributed to all participants, which included orthodontists from the American Association of Orthodontists (AAO) and patients/parents from the VCU Orthodontic Clinic and Private Practices throughout the United States. The participants were asked to answer questions related to their use of social media as well as their perceptions of usage of social media in the orthodontic …
Examination Of The Communication Practices And Preferences Between Orthodontists And General Dentists, Kevin Bibona
Examination Of The Communication Practices And Preferences Between Orthodontists And General Dentists, Kevin Bibona
Theses and Dissertations
The purposes of this study were to evaluate if orthodontists’ and general dentists’ perceptions of how often, under what circumstances, and by which media orthodontists communicated with general dentists were similar, and to determine if orthodontists were meeting the communication needs of general dentists. Orthodontists (N=1,000) and general dentists (N=1,000) throughout the United States were randomly selected to participate in a web-based and mailed survey, respectively. The results indicated that the orthodontists communicated with general dentists using the type of media the general dentists preferred to use. As treatment complexity increased, orthodontists shifted from one-way forms of communication to two-way …
Cephalometric Regional Superimpositions -- Digital Vs. Analog Accuracy And Precision : 3. The Cranial Base, Douglas Shaw
Cephalometric Regional Superimpositions -- Digital Vs. Analog Accuracy And Precision : 3. The Cranial Base, Douglas Shaw
Student Theses, Dissertations and Capstones
Objective. To assess the accuracy and precision in measurement of pairwise implant displacement across three methods of cranial base superimposition. Background. Cephalometric superimposition is the principal radiographic method used to evaluate changes within the craniofacial skeleton. Many studies have examined the accuracy of software intended to produce cephalometric superimposition. Such studies have utilized anatomic landmarks, selected by the respective software manufacturers, as registration points for constructing superimpositions and their analysis. As a result, these studies are only as accurate as the stability and validity of anatomic registration landmarks used. To our knowledge, no other study has utilized metallic implants to …
Investigation Of Lateral Incisor Crown Root Angulation And Impacted Maxillary Canines, Samuel Philip Purnell
Investigation Of Lateral Incisor Crown Root Angulation And Impacted Maxillary Canines, Samuel Philip Purnell
All ETDs from UAB
Objective: The primary aim of this study was to determine if there is a difference in the mesiodistal crown-root angulation of maxillary lateral incisors between patients with impacted maxillary canines and a control population. Secondary aim 1 compared the same angle measured on panoramic radiographs to determine if a difference existed between the CBCT measurement and the panoramic radiograph measurement. Secondary aim 2 looked to determine if there was a correlation between maxillary lateral incisor tooth width and the mesiodistal crown-root angulation. Materials and Methods: CBCT's were reformatted so that the mesiodistal crown-root angulation of maxillary lateral incisors could be …