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Full-Text Articles in Medicine and Health Sciences
Effects Of Unilateral Extraction Treatment On Arch Symmetry And Occlusion, Theodore William Struhs
Effects Of Unilateral Extraction Treatment On Arch Symmetry And Occlusion, Theodore William Struhs
Theses and Dissertations
Occlusal asymmetries are common in orthodontic patients. A treatment option for correcting moderate asymmetries is asymmetric extractions. This study evaluated post-treatment dental arch symmetry in patients treated with unilateral premolar extractions. Post-treatment casts of 60 patients were divided into four treatment groups based on the history of occlusal asymmetry and the treatment plan. DesignCAD3000 software (Upperspace Corporation, Pryor, OK) was used to evaluate asymmetrically treated arches for symmetry. The four treatment groups were compared to identify differences in arch asymmetry based on treatment. The lateral incisor and canine were found to be more palatal on the extraction side in patients …
A Radiographic Analysis Of Variance In Lower Incisor Enamel Thickness, Nathan E. Hall
A Radiographic Analysis Of Variance In Lower Incisor Enamel Thickness, Nathan E. Hall
Theses and Dissertations
The purpose of this study was to help predict the enamel thickness of mandibular incisors. At least two direct digital periapical radiographs were made for each of the 80 subjects. Radiographs were scaled to control for magnification errors using dental study models and computer software. Mesiodistal incisor width and mesial and distal enamel thicknesses were measured. Lateral incisors were determined to be wider than central incisors and distal enamel thicknesses were larger than mesial enamel thicknesses on average. The African American group demonstrated wider incisors and enamel thicknesses than the Caucasian group on average. Enamel thickness positively correlated with tooth …
Overbite Correction And Smile Esthetics, Sherif Nabil Elhady
Overbite Correction And Smile Esthetics, Sherif Nabil Elhady
Theses and Dissertations
The purpose of this prospective clinical study was to investigate differences in outcomes from two common treatment modalities used to reduce deep overbite: maxillary incisor intrusion using an intrusion arch and posterior tooth eruption using an anterior bite plate and to assess their influence on smile esthetics. Pre-treatment and post-overbite correction records were gathered from 40 patients with deep overbite malocclusions at the Virginia Commonwealth University orthodontic clinic. Intrusion arch patients displayed significant reductions in maxillary incisor display accompanying documented incisor intrusion. Bite plate patients showed significant lower incisor intrusion and increases in the mandibular plane angle. When compared to …
Importance Of Pumice Prophylaxis For Orthodontic Bonding With Self-Etch Primer: An In Vivo Study, Daniel J. Lill
Importance Of Pumice Prophylaxis For Orthodontic Bonding With Self-Etch Primer: An In Vivo Study, Daniel J. Lill
Theses and Dissertations
Self-etching primers (SEP) have recently simplified the orthodontic bonding process and questions have arisen regarding their reliability and efficiency. The goal of this study was to assess the importance of a pumice prophylaxis prior to bonding with SEP (Transbond Plus, 3M Unitek, Monrovia, CA) in reducing bond failures. Thirty orthodontic patients volunteered to participate in this split-mouth prospective clinical trial. A pumice prophylaxis experimental group and a non-pumice control group of teeth were randomly assigned in a contralateral quadrant pattern within each patient. A total of 508 teeth were bonded and monitored over 3 months for bond failures. There were …