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Articles 211 - 214 of 214
Full-Text Articles in Dentistry
Barrier Membranes For Ridge Augmentation - Is There An Optimal Pore Size?, Rajesh Gutta
Barrier Membranes For Ridge Augmentation - Is There An Optimal Pore Size?, Rajesh Gutta
All ETDs from UAB
Background: - Alveolar bone loss is often a sequelae of edentulism. However, several reconstruction procedures with bone grafts and barrier membranes are used to restore the lost bony architecture. The value of titanium mesh barriers has been shown to be reliable both in vertical and horizontal ridge augmentation procedures. However, there is a paucity of literature supporting the role of pore size of barrier membranes in preventing soft tissue ingrowth during ridge augmentation procedures. There are multiple reports describing a layer of soft tissue with varying thickness beneath the mesh and adhering to the newly regenerated bone. The objective of …
Surface Reproducibility Of Impression Materials, Amit Shah
Surface Reproducibility Of Impression Materials, Amit Shah
All ETDs from UAB
The inability to absorb or release moisture limits the ANSI/ADA specification 19 stainless steel mold from accurately mimicking tooth structure and oral conditions while evaluating in vitro detail reproduction of elastomeric impression materials. Moreover, studies utilizing this mold have been graduated at room temperature, not normal mouth temperature. Bovine teeth, being similar to human teeth in microstructure and composition, are the closest substitutes that can be used to evaluate surface detail reproducibility of impression materials. The objectives of this study were (1) to develop a new bovine in vitro test model at controlled temperature and humidity in order to simulate …
In Vitro Compressive Fracture Resistance Of The Human Maxillary First Premolar With Different Mod Cavity Design And Restorative Materials, Wen-Chou Wu
All ETDs from UAB
Cuspal failures of MOD (mesial-occlusal-distal) restored teeth have been constantly observed in clinic especially those restored with amalgam. As the pulpal depth and isthmus width of the preparation increases, the strength decreases. A number of studies have investigated the adhesive technique which is intended to increase the fracture resistance by bonding the tooth structure. The results of the studies are controversial because of the differences of research design among studies. The purpose of this study is to evaluate the fracture resistance of the human maxillary first premolar restored with condensable composite (Surefil, Dentsply) and CEREC 3D ProCAD leucite-reinforced ceramic inlays …
Micro-Computed Tomographic Analysis Of Bone Healing Subsequent To Graft Placement, Preeti M. Chopra
Micro-Computed Tomographic Analysis Of Bone Healing Subsequent To Graft Placement, Preeti M. Chopra
All ETDs from UAB
A MicroCT analysis of bone healing subsequent to graft (tri calcium phosphate/TCP) placement in the maxillary sinus prior to dental endosteal implant placement was the objective of the current study. Ten trephined rod shaped human bone cores were obtained three months after the placement of particulate graft material and the samples were stored immediately in 10% neutral buffered formalin. Using a Microcomputed tomography, the samples were evaluated at resolutions of 6 and 20μm. The thresholds for bone and graft material were determined using visual image, intensity (grey level) and histogram analyses. The graft and bone threshold was 235 greylevel and …