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Full-Text Articles in Medicine and Health Sciences
Management Of The Open Apex Using A Bioceramic Apical Barrier: Success And Survival Rates At Virginia Commonwealth University, Adam Sarnowski
Management Of The Open Apex Using A Bioceramic Apical Barrier: Success And Survival Rates At Virginia Commonwealth University, Adam Sarnowski
Theses and Dissertations
Purpose: The aim of this study was to assess the outcome of treatment of teeth with open apices managed by the orthograde placement of a bioceramic apical barrier as well as to identify potential outcome factors for this type of treatment. Methods: Patient records were pooled from graduate resident cases completed at Virginia Commonwealth University between January 1, 2010 and May 31, 2018. A total of 515 patients were identified using relevant ADA codes and a key word search within the patient record database. A total of 104 patients (119 teeth) had an open apex that had NSRCT utilizing a …
An Invitro Leakage And Viscosity Analysis Of Root End Filling Materials, Paul D. Clark
An Invitro Leakage And Viscosity Analysis Of Root End Filling Materials, Paul D. Clark
Theses and Dissertations
The purpose of this study was to determine if the viscosity of MTA Angelus Fluid is lower than that of Pro Root MTA and MTA Angelus; and to compare the viscosity, leakage and particle size of these materials to determine whether a relationship exists between these properties. The viscosity of each material was measured and compared with the Student's t test. MTA Angelus Fluid's viscosity was significantly lower than the other two materials tested. Microleakage of root end fillings was assessed in a passive diffusion model. Leakage groups were compared with a one-way ANOVA (p < 0.05). No significant difference was found. Particle size and shape were evaluated with the SEM. MTA Angelus Fluid has a lower viscosity than the other materials tested. There was no significant difference in the sealing ability of the three materials tested and there was no apparent variation in each material's particle size or shape.
A Quantitative Comparison Of The Fill Density Of Mta Produced By Two Different Placement Techniques., Priscilla Yeung
A Quantitative Comparison Of The Fill Density Of Mta Produced By Two Different Placement Techniques., Priscilla Yeung
Theses and Dissertations
The purpose of this study was to quantitatively compare the fill density of MTA produced by hand condensation and hand condensation with indirect ultrasonic activation. Thirty acrylic block with 30 degree curved canals (group C) and 30 with straight canals (group S) were instrumented to a final apical size of 45 of 0.06 taper crown-down technique. After irrigating with water and drying with paper points, each block was weighed to the nearest 0.0001g with a digital electronic balance. In half of the specimens, chosen at random, the canal first filled with MTA using the hand condensation method (H) then weighed. …
Use Of A Portland Cement Accelerator With Mineral Trioxide Aggregate, M. Scott Monts
Use Of A Portland Cement Accelerator With Mineral Trioxide Aggregate, M. Scott Monts
Theses and Dissertations
The use of Mineral Trioxide Aggregate (MTA) is gaining popularity among clinicians. Despite the many ideal qualities it possesses, it is often difficult to manipulate and often requires a second appointment for placement of a restoration to allow for setting. If the time to set of MTA can be accelerated to a single appointment time frame without significantly altering its properties, then MTA may gain even wider acceptance. The purpose of this study is to identify the percentage of a Portland Cement Accelerator (PCA), that when added to MTA, will decrease the time to set of MTA towards a single …