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Full-Text Articles in Medicine and Health Sciences
Characterization Of Pleiotrophin And Receptor Protein Tyrosine Phosphatase Beta/Zeta In Odontoblast And Osteoblast Cell Lines, Amena Tamkenath
Characterization Of Pleiotrophin And Receptor Protein Tyrosine Phosphatase Beta/Zeta In Odontoblast And Osteoblast Cell Lines, Amena Tamkenath
All ETDs from UAB
Pleiotrophin (PTN) is an extracellular matrix-associated growth factor and chemokine expressed in mesodermal and ectodermal cells. It plays an important role in osteoblast recruitment and differentiation. PTN has two well-known physiological receptors, protein tyrosine phosphatase beta/zeta (RPTPRZ1), and N-syndecan. Protein tyrosine phosphatases are a group of enzymes that remove phosphate groups from phosphorylated tyrosine residues on proteins. Protein tyrosine phosphorylation is a common post-translation modification that can create novel recognition motifs for protein interactions and cellular localization, affect protein stability and regulate enzyme activity. Osteoblasts have recently been found to express the short transmembrane isoform of RPTP beta/zeta but nothing …
Real-Time Quantitative Pcr For Evaluation Of Mutans Streptococci And Dental Caries, Chanika Manmontri
Real-Time Quantitative Pcr For Evaluation Of Mutans Streptococci And Dental Caries, Chanika Manmontri
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Mutans streptococci (MS), e.g., Streptococcus mutans (Sm) and Streptococcus sobrinus (Ss), are associated with dental caries. Quantification of MS has been shown to predict caries risk. A new technology using PCR may streamline quantification compared to traditional culture methods. Purpose: To use real-time quantitative PCR (qPCR) and standard plate counting (SPC) for detection and quantification of levels of Sm, Ss and total streptococci (TS) in clinical samples from high-caries-risk children with no regular access to dental care and to study correlation of these bacterial levels and ratios to caries prevalence. Methods: Saliva and plaque samples were collected from school-aged children …
Effect Of Different Percentages Of Silica Nanofibers Filler Loads On Mechanical And Physical Properties Of Flowable And Hybrid Composite Resins, Qinyue Cai
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Dental composites are used for a variety of applications in dentistry today. Dental composites are composed of a resin matrix containing a blend of Bis-GMA (bis-phenol A-glycidyldimethacrylate) or urethane dimethacrylate (UDMA) along with TEGDMA (tetraethylglycidylmethacrylate). Exhaustive researches has been conducted in recent years to improve physical and mechanical properties of resin-based dental composites, since the existing resin-filler systems may not be suitable for long term applications in large as well as high stress restorations. Nanofillers reinforced composite resins have shown promising results. Silica-based nanoparticles and clusters are blended with larger-sized fillers and are available commercially for restoring large posterior restorations. …
Histomorphometry And Quantitative Analysis Of Longer-Term Implant Interfaces, Dave Darko Kojic
Histomorphometry And Quantitative Analysis Of Longer-Term Implant Interfaces, Dave Darko Kojic
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Objective: This investigation was to evaluate (>10 year) bone response around custom (HA plasma coated) dental implants and HA particulate. Materials and Methods: Three individual post mortem mandibular COI Implants with surrounding bone were processed at six transverse locations to obtain non-decalcified ground sections (20-80µm)(n=36) and stained initially with methylene blue/basic fuchsin. Slides were evaluated to select (n= 8) slides for regions of interest along the perimeter of the implant, using optical microscopy (Olympus BX51 microscope) with a Retiga EXi color digital camera (Olympus, Center Valley, PA) and Bioquant VR software (R&M Biometrics, Nashville, TN) at an original magnification …
Clinical Evaluation Of Treatment Of White Spot Lesions With Icon, Candace A. Cronan
Clinical Evaluation Of Treatment Of White Spot Lesions With Icon, Candace A. Cronan
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Introduction: Despite an increased awareness by clinicians and their attempt to aid patients in the prevention of white spot lesions, enamel demineralization continues to be a problem associated with orthodontic treatment. Current treatment options for these unaesthetic scars on the teeth range from conservative options for remineralization such as the use of fluoride and CPP-ACP to more aggressive treatment involving loss of tooth structure with microabrasion or restorations. An innovative option for treatment has recently been introduced in the form of the infiltrant resin, Icon. Icon infiltration is a minimally invasive procedure performed by a dentist that is claimed to …
A Histologic And Radiologic Analysis Of Bone Formation Under The Elevated Maxillary Sinus Using Venous Coagulum As The Sole Filling Material, Kathleen Ann Beaudry
A Histologic And Radiologic Analysis Of Bone Formation Under The Elevated Maxillary Sinus Using Venous Coagulum As The Sole Filling Material, Kathleen Ann Beaudry
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Insufficient bone height is a common obstacle to placing dental implants in the posterior maxilla. Sinus lift procedures using various grafting materials have been shown to be a highly predictable way to increase bone height in the posterior maxilla (Jensen 1998). Given the wide range of materials that have proven successful in augmenting the sinus, the argument could be made that the presence of graft is not critical. Instead, the creation and maintenance of space, provided by two implants, along with the osteoinductive properties of the membrane, the periosteum, and growth factors provided by a blood clot are the only …
Three-Dimensional Magnetic Resonance Imaging Of The Natural Dentition, Ryan Jeffery Cox
Three-Dimensional Magnetic Resonance Imaging Of The Natural Dentition, Ryan Jeffery Cox
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The purpose of this study was to determine if ultra short echo time magnetic resonance imaging (UTE-MRI) technology could be used to image teeth in orthodontics. The objectives of this study were to determine the accuracy and resolution of UTE-MRI on dental morphology and its application to the field of orthodontics with respect to appliance affect on morphology. Teeth were collected from the Orthodontic clinic at the University of Alabama at Birmingham and the Institutional Review Board of the University of Alabama at Birmingham approved the study. High-resolution 3-Tesla UTE-MRI was preformed on sixty extracted human premolar teeth with fixed …