Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Master of Science in Dentistry (MScD) School of Dentistry (6)
- Master of Science (MS) School of Dentistry (4)
- Master of Dentistry (MDent) School of Dentistry (3)
- 3D (1)
- 3D imaging (1)
-
- AIHHT (1)
- Adhesive (1)
- African-American (1)
- Algorithm (1)
- Alveolar Bone (1)
- Angled zirconia abutment (1)
- Arch Form (1)
- Attractiveness (1)
- Binding interactions (1)
- C-Factor (1)
- Cast (1)
- Cements against enamel (1)
- Cements wear (1)
- Coding mutations (1)
- Core materials (1)
- Custom zirconia abutment (1)
- Cytokines (1)
- DLX3 (1)
- Dental (1)
- Dental Composites (1)
- Dentinogenesis (1)
- Dual cured cements (1)
- Extraction socket (1)
- Facial morphology (1)
- Fiber posts (1)
Articles 1 - 13 of 13
Full-Text Articles in Medicine and Health Sciences
Influence Of Implant Angulation On The Fracture Resistance Of Zirconia Abutments, Shreedevi Thulasidas
Influence Of Implant Angulation On The Fracture Resistance Of Zirconia Abutments, Shreedevi Thulasidas
All ETDs from UAB
Zirconia-based implant abutments are widely used in prosthetic dentistry. Custom made abutments are utilized to correct for non-ideal implant positions and can successfully accommodate the morphologic requirements of the overlying crown. It was hypothesized that there will be difference in fracture strength and fracture mode of artificially aged zirconia implant abutments supported by implants at varying angulation, when load is applied to failure on overlying zirconia crowns. The implant-abutment-crown assemblies were subjected to steam autoclaving to induce some degree of phase transformation from tetragonal to weaker monoclinic form and to thermo-cycling to artificially age the samples. The effects of loading …
Three-Dimensional Photography Of Facial Morphology Of Adult African-Americans Compared To Various Population Sets, Leslie Talbert
Three-Dimensional Photography Of Facial Morphology Of Adult African-Americans Compared To Various Population Sets, Leslie Talbert
All ETDs from UAB
The purpose of this study is to compare the facial morphologies of an adult African-American population to an adult Caucasian-American population using three-dimensional surface imaging. Materials and Methods: Three-dimensional facial images were captured via a stereo-photogrammetric camera system (3dMDfaceTM system). One hundred images of each population (African-American and Caucasian-American) were taken. Subjects were between 19-30 years of age, normal BMI, and no gross craniofacial anomalies. All facial images were aligned and combined using Rapidform 2006 Plus Pack 2 software to produce a male and female facial average for each population. The facial averages were then superimposed for comparison and the …
Polymerization Shrinkage Strain Versus C-Factor And Placement Method For Dental Composites, Shashank Godbole
Polymerization Shrinkage Strain Versus C-Factor And Placement Method For Dental Composites, Shashank Godbole
All ETDs from UAB
Polymerization shrinkage is an important property when restoring teeth with dental composites since resins shrink during polymerization creating stress and strain around the restoration. This may produce failure at the composite-tooth interface. This leads to marginal gaps, staining, post-operative sensitivity, secondary caries, and crack development within the body of a tooth. It is critical to be able to measure polymerization strain produced during composite polymerization. Objective: To measure and compare the polymerization shrinkage strain of various bulk and incrementally placed composites using a novel and recently developed model with different C-factors. Methods: Teflon molds were used to prepare Z100 composite …
Perception Of Attractiveness: A Comparison Of Two-Dimensional Versus Three-Dimensional Images, Aksana Marshall
Perception Of Attractiveness: A Comparison Of Two-Dimensional Versus Three-Dimensional Images, Aksana Marshall
All ETDs from UAB
Introduction: The aims of this study were (1) to evaluate whether there is a difference in perception of facial attractiveness when viewing two-dimensional (2D) versus three-dimensional images (3D) within each population studied (Caucasian, African American, and Chinese), (2) to evaluate whether panels of raters with different levels of orthodontic education would give similar facial attractiveness scores, and (3) to identify the soft tissue features that influence facial attractiveness when viewing 2D and 3D images. Materials and methods: A total of 60 3D images from three populations selected for this study were acquired using a 3dMDfaceTM system (Atlanta, GA) and were …
Automatic Segmentation Of Teeth In Digital Dental Models, David Anton Mouritsen
Automatic Segmentation Of Teeth In Digital Dental Models, David Anton Mouritsen
All ETDs from UAB
Introduction: Within the last decade, there has been an increase in the use of digital records in orthodontics. An orthodontic diagnostic setup is a simulated treatment outcome prepared from dental models. To create a diagnostic setup from digital dental models, the first step is to segment the models, or identify the boundaries of each tooth. In the past, a human operator would manually segment the models using a computer program to draw the boundary that separates the teeth from each other and the gingiva. The ideal, fully automatic, segmentation algorithm would not require a user to interact with the digital …
A Prospective Study Of Bone Augmentation With Growth Factors In Extraction Sockets, Athanasios Ntounis
A Prospective Study Of Bone Augmentation With Growth Factors In Extraction Sockets, Athanasios Ntounis
All ETDs from UAB
Ridge preservation protocols reduce crestal remodeling after tooth extraction. Limited evidence supports the potential of different grafting materials to preserve the alveolar ridge. There is limited evidence to indicate advantage of bone replacement grafting in combination with platelet rich plasma (PRP), compared to grafting alone. A combination of recombinant human platelet derived growth factor (rhPDGF-BB) with beta tricalcium phosphate (ß-TCP) has recently been approved to aid wound healing. Aim: To evaluate early healing of grafted and non-grafted extraction sockets in the es-thetic zone, with or without PRP and rhPDGF-BB. Materials and Methods: Population consisted of 41 healthy adult patients whose …
The Comparison Of Dental Arch Forms Obtained From Teeth, Alveolar Bone, And The Overlying Soft Tissue, Patrick O'Neil
The Comparison Of Dental Arch Forms Obtained From Teeth, Alveolar Bone, And The Overlying Soft Tissue, Patrick O'Neil
All ETDs from UAB
THE COMPARISON OF DENTAL ARCH FORMS OBTAINED FROM TEETH, ALVEOLAR BONE, AND THE OVERLYING SOFT TISSUE Patrick D. O'Neil, DMD UAB DEPARTMENT OF ORTHODONTICS: DENTISTRY ABSTRACT Objective: The objective of this study was to determine if a difference existed between arch forms created from tooth surfaces, alveolar bone, and overlying soft tissue. Materials and Methods: The sampling population for this study was 18 individuals with a Class I malocclusion, mild crowding, and a CBCT image of good diagnostic quality. The Facial-axis point was chosen to create the arch form from teeth, the Bowman-Kau point was used to establish the arch …
Microrna Regulation Of Dlx3 During Odontoblast Differentiation, Hannah Maria Heair
Microrna Regulation Of Dlx3 During Odontoblast Differentiation, Hannah Maria Heair
All ETDs from UAB
MicroRNAs are endogenous non-coding RNA (~22nt) that bind to the 3' untranslated region (UTR) of target messenger RNA (mRNA) and facilitate translational repression and degradation. Previous studies have demonstrated the essential role of miRNA in many biological processes, including skeletal development and tooth formation. Dlx3, a homeobox gene, is critical for craniofacial patterning and postnatal skeletal development. Mutations in the Dlx3 gene in humans result in two autosomal dominant phenotypes known as tricho-dento-osseous syndrome (TDO) and amelogenesis imperfecta with taurodontism (AIHHT). Dlx3 expression has been observed in cranial neural crest cells, endochondral osteoblasts, odontoblasts, ameloblasts, hypertrophic chondrocytes, and the developing …
Bonds And Contact Angles Produced With Surface Alterations To Lithium Disilicate, Vamsi Krishna Kalavacharla
Bonds And Contact Angles Produced With Surface Alterations To Lithium Disilicate, Vamsi Krishna Kalavacharla
All ETDs from UAB
The success of ceramic restorations depends upon factors like the composite resin cement, the adhesive, cementation procedure and the substrate. With the introduction of newer ceramic and adhesive systems the factors that contribute to the most durable bond strength remains unclear. The objective of the study was to measure 24 hour and thermocycled shear bond strength of a composite to lithium disilicate glass ceramic with a universal single bottle adhesive. A combination of surface treatments of hydrofluoric acid, silane, salivary contamination and subsequent cleaning were also evaluated. Blocks of lithium disilicate (e.max CAD) were sectioned, polished with a rotational polishing …
The Effect Of An Intensive Oral Hygiene Regimen On Gingival Inflammation During Pregnancy: Clinical And Laboratory Analysis, Maninder Kaur
The Effect Of An Intensive Oral Hygiene Regimen On Gingival Inflammation During Pregnancy: Clinical And Laboratory Analysis, Maninder Kaur
All ETDs from UAB
Background: Recent evidence suggests that systemic inflammation as host immune response to oral microbial challenge may well underlie the observed association between periodontal disease and preterm birth/low birth weight (PTB/LBW). The aim of this pilot study was to evaluate the effect of vigorous oral hygiene regimen on gingival inflammation and gingival crevicular fluid (GCF)/serum biomarkers (TNF-&alpha, IL-1&beta and IL-6) during pregnancy and its impact on pregnancy outcome. Methods: 120 participants with pregnancy between 16-24 weeks gestation and with gingival index (GI) scores &ge 2 at &ge 50 % of tooth sites were recruited from the available pool of patients at …
In Vitro Wear Of Nine Cements Against Enamel, Mohamad Kyson
In Vitro Wear Of Nine Cements Against Enamel, Mohamad Kyson
All ETDs from UAB
The objective of this study was to measure and compare in vitro wear resistance of nine cements against human enamel cusps in glycerol media using UAB second generation wear machine (hit and slide). Six cements were dual cured polymer-based cements; total-etch: Variolink II (Ivoclar Vivadent), self-etch: Multilink Automix (Ivoclar Vivadent) and self-adhesives: Maxcem Elite (Kerr), RelyX Unicem 2 (3m ESPE), PANAVIA SA (Kuraray) and G-CEM LinkAce (GC America). Three cements were water-based chemical cured cements; Zinc-phosphate: Harvard Cement (Harvard) and resin modified glass ionomers cements: RelyX Luting Plus (3M ESPE) and GC FujiCEM 2 (GC America). Samples were scanned after …
Regional In Vitro Retention Of Fiber Posts, Shayma Kyson
Regional In Vitro Retention Of Fiber Posts, Shayma Kyson
All ETDs from UAB
The overall objective of this in vitro study was to determine the biomechanical retention along fiber post interfaces to root canal dentin of four different fiber posts systems combined with five different resin cements (total-etch, self-etch and self adhesive systems) tested within different regions of dentin (cervical, middle and apical levels) and the core material alone. Scanning electron microscopy (SEMs) was used to evaluate the failure characteristics of the systems for root canal dentin and core material interfaces. Roots of freshly extracted first mandibular premolars, without caries, cracks or defects were selected. Radiographs made from mesiodistal and buccolingual directions were …
Msx1 Mutations And Their Binding Interactions, Divakar Prakash
Msx1 Mutations And Their Binding Interactions, Divakar Prakash
All ETDs from UAB
Orofacial clefting (OFC), also called cleft lip and/or palate, is the most common congenital birth anomaly that involve the craniofacial region in humans. The etiology of Non-Syndromic OFC (NS-OFC) is complex and multifactorial; a slew of genetic mutations, standing alone or in combinations, along with several environmental factors, play a major role in the disease process. Numerous linkage and association studies in humans, as well as expression studies and knockout mouse models, have implicated Muscle segment homeobox gene 1 (MSX1), which encodes a homeodomain/DNA binding domain (HD) containing transcription factor as a strong candidate contributing to NS-OFC and Tooth Agenesis …