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Articles 1 - 5 of 5
Full-Text Articles in Dental Materials
Evaluation Of The Antimicrobial Activity Of Four Endodontic Sealers Against Streptococcus Mutans And Enterococcus Faecalis Using The Agar Diffusion Test, Dakota Alan Bailey
Evaluation Of The Antimicrobial Activity Of Four Endodontic Sealers Against Streptococcus Mutans And Enterococcus Faecalis Using The Agar Diffusion Test, Dakota Alan Bailey
Graduate Theses, Dissertations, and Problem Reports (ETD)
Abstract
Evaluation of the Antimicrobial Activity of Four Endodontic Sealers Against
Streptococcus mutans and Enterococcus faecalis Using the Agar Diffusion Test
Dakota A. Bailey, D.D.S.
Introduction: The antimicrobial activity of root canal sealers may contribute to the elimination of residual microorganisms that persist following chemomechanical preparation. Limited research has directly compared contemporary bioceramic sealers with traditional sealers against both Streptococcus mutans and Enterococcus faecalis. NeoSEALER EzFlo is a recently introduced bioceramic sealer with limited published antimicrobial data. The purpose of this study was to evaluate the antimicrobial activity of EndoSequence BC HiFlow, NeoSEALER EzFlo, AH Plus Jet, and Kerr Pulp …
Implant Overdenture Abutment Loosening Under Hyperbaric Conditions, Zana Jamal Al-Saloum
Implant Overdenture Abutment Loosening Under Hyperbaric Conditions, Zana Jamal Al-Saloum
Graduate Theses, Dissertations, and Problem Reports (ETD)
Objectives: To investigate the effect of various hyperbaric air pressures on the loosening of LOCATOR® (ZEST Anchors, LLC, Escondido, CA USA) overdenture abutments.
The pressure conditions tested are meant to simulate scuba diving conditions in edentulous patients that are restored with implant-retained tissue-supported overdentures. Another sub-goal of this study is to determine whether or not there is a difference in LOCATOR® loosening when the sample is exposed to six cycles/dives as opposed to one cycle/dive.
Methods: 36 ZimVie Tapered Screw Vent Implants with a 3.5mm diameter implant platform, and a 2.5mm diameter (and 1.5mm deep) internal hexagon were …
Accuracy Of Digital Impressions At Varying Implant Depths: An In-Vitro Study, Vivia Sequeira
Accuracy Of Digital Impressions At Varying Implant Depths: An In-Vitro Study, Vivia Sequeira
Graduate Theses, Dissertations, and Problem Reports (ETD)
Introduction: Implants placed at variable depths may vary the amount of visible scannable surface of a scan body. Intraoral scanner technology uses advanced optical principles to record the surface of the scan body to accurately capture the implant position.
Purpose: To investigate the effect implant placement depth has on the accuracy of digital implant impressions using an intraoral scanner.
Materials & Methods: A partially edentulous gypsum master model was fabricated to allow the positioning of a single implant analog at different depths. Four groups based on the planned implant depths of 0, 3, 6 and 7mm and corresponding visibility of …
The Visual And Spectrophotometric Effect Of External Bleaching On Omnichroma Resin Composite And Natural Teeth, Michael Brian Evans
The Visual And Spectrophotometric Effect Of External Bleaching On Omnichroma Resin Composite And Natural Teeth, Michael Brian Evans
Graduate Theses, Dissertations, and Problem Reports (ETD)
Objective: To determine the visual and spectrophotometric effect external tooth bleaching has on natural tooth structure and OMNiCHROMA composite at various number of treatments. Variables were compared to determine if there is a detectable difference between the composite and the tooth before and after bleaching.
Methods: Preparation and restoration of 25 previously extracted teeth was completed. OMNiCHROMA composite was used. Each tooth was measured visually with a VITA shade guide and a colorimeter. Measurements were recorded before bleaching, after 5 and 10 treatments. Statistical analysis was completed and ΔE values between the composite and tooth were compared between the 3 …
Effect Of Shear Bond Strength With Novel Apc™ Flash-Free Brackets And Different Bonding Protocol: An In Vitro Study, Carl Bernstein
Effect Of Shear Bond Strength With Novel Apc™ Flash-Free Brackets And Different Bonding Protocol: An In Vitro Study, Carl Bernstein
Graduate Theses, Dissertations, and Problem Reports (ETD)
Background and Objectives: In today’s time, there is an increasingly crowded field of competition vying over a small subset of the population. Now, more than ever it is imperative to compete with efficiency and esthetics. Each step for orthodontic bonding procedures increases the chance for error to occur. However, orthodontic bracket, etchant, sealant, and adhesive material has the ability to improve bond strength and final outcome for the patient and provider. The aim of this study was to determine effective bonding protocols for Advanced Clarity APC™ Flash-Free Brackets and to determine if adhesive remains on enamel or orthodontic bracket after …