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Full-Text Articles in Medicine and Health Sciences
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 …
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 …
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 …
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 …
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 …
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 …