Prosthodontics and Prosthodontology Commons^™

In Vitro Staining Of Denture Liners And Potential For Color Correction Using Commonly Available Denture Cleansers, Russell D. Morrell

Theses and Dissertations (ETD)

Background: Denture liners are routinely used as part of immediate denture therapy, following surgery involving edentulous tissues, and to improve the function and stability of existing removable prostheses. Appropriate application of denture liners can facilitate patient comfort during prolonged therapy and prior to placement of definitive restorations. However, concern has been raised regarding the susceptibility of common denture liners to agent-induced color change which, in turn, adversely impacts the esthetic appeal of the associated removable prosthesis.

Objective: The purpose of the study was to evaluate the color stability of denture liners exposed to commonly encountered food stains and commonly used …

Verification Of The Accuracy Of Electronic Mandibular Movement Recording Devices: : An In Vitro Investigation, Joshua Heath Balch

Theses and Dissertations (ETD)

One goal of restorative dentistry is to truly capture maxillomandibular relationships that accurately reproduce mandibular border movements and that would prescribe the best occlusal interface. Registration of horizontal and sagittal movements of the patient allows maximum cusp height and fossae depth with proper placement of occlusal ridges and grooves. The goal is to develop an occlusion that is interference free and entails the concepts of organic occlusion. Methods to transfer patient information to a highly adjustable articulator include mechanical recorders, mechano-electronic recorders and optoelectronic recorders. The purpose of this study is to verify the accuracy of electronic mandibular movement recording …

In‐Vitro Comparison Of Tensile Bond Strength Of Denture Adhesives On Denture Bases, Doris Rachel Kore

Loma Linda University Electronic Theses, Dissertations & Projects

PURPOSE: To evaluate the tensile bond strength (TBS) of three cream denture adhesives and one wafer denture adhesive on three denture base materials at five time intervals up to 24 hours. METHODS: Fixodent (Proctor & Gamble™), Super Poligrip (GlaxoSmithKline™), Effergrip (Prestige Brands, Inc.™), and SeaBond (Combe™) were tested with the Instron testing machine on three denture base resin cylinder models fabricated from two heat‐polymerized (Lucitone 199 and SR Ivocap) and one visible lightcured, shade stable (Eclipse) acrylic resins. Laboratory prepared artificial saliva with mucin was used for the control study. In accordance with ADA specifications, the TBS was tested at …

Effect Of Time On Gypsum-Impression Material Compatibility, John Boram Won

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to evaluate the compatibility of dental gypsum with three recently introduced irreversible hydrocolloid (alginate) alternatives. The test materials were Alginot® (Kerr™), Position Penta Quick® (3M ESPE™) and Silgimix® (Sultan Dental™). The irreversible hydrocolloid impression material, Jeltrate Plus antimicrobial® (Dentsply Caulk™) served as the control. Materials and Methods: Testing of materials was conducted in accordance with ANSI/ADA Specification No. 18 for Alginate Impression Materials. Statistical Analysis: The 3-Way ANOVA test was used to analyze measurements between different time points at a significance level of (p < 0.05) Outcome: It was found that there was greater compatibility between gypsum and the alternative materials over time than the traditional irreversible hydrocolloid material that was tested. A statistically significant amount of surface change/incompatibility was found over time with the combination of the dental gypsum products and the control impression material (Jeltrate Plus antimicrobial®).

Virtual Three-Dimensional Analysis Of Dimensional Accuracy Of Dental Master Die Models Created By The Iterotm Electronic Impression Device And Those Made From A Polyvinyl Siloxane Impression Material, Polina P. Shcherbatov

Master's Theses

No abstract provided.

Analysis Of Periapical Biopsies Submitted For Histopathological Evaluation: A Retrospective Study, Abdullah I. Alqaied

Master's Theses

Apical periodontitis is the most common pathological process in the periapical region. Disciplined clinical and radiographic evaluations and appropriate diagnostic tests can detect lesions related to apical periodontitis. Aside from this, lesions mimicking pulp-related pathology but unrelated to pulpal infection and necrosis are occasionally discovered in the periapical region. The objective of this study was two-fold: (1) to determine the prevalence of diverse periapically located pathological entities, and (2) to apply that information to evaluate the rationale for routine submission of surgically obtained tissue for histological examination and diagnosis. Methods: A 5-year retrospective analysis of pathology reports from the UCONN …

Effect Of Two Different Implant Structures On Stresses Induced Within The Surrounding Bone Using Three Dimensional Finite Element Analysis, Fardos N. Rizk

Dentistry

objective: The purpose of this study is to compare the stresses induced within the bone surrounding the Trabecular Metal Dental Implant (Zimmer Dental Inc., Carlsbad, CA, USA) in comparison to the stresses induced within the bone surrounding its predicate Tapered Screw Vent Implant (Zimmer Dental Inc., Carlsbad, CA, USA) using three dimensional finite element analysis. materials and methds: The current finite element analysis simulated a clinical situation where an edentulous mandible was restored with an entirely implant supported cantilever bar overdenture retained by five implants placed parallel to each other in the interforaminal region opposed by a complete denture. Two …

Comparative Study Of Ot Equator Profile Attachment Versus Gps Attachment In Implant Retained Mandibular Overdenture Cases, Fardos N. Rizk

Dentistry

Aim: This study was carried out to evaluate whether OT Equator Profi le attachment or GPS attachment is less destructive to crestal bone around implants and to bone in distal aspect of the ridge in implant retained mandibular overdenture cases. Materials and Methods: Following two stage surgical protocol twelve completely edentulous patients received two implants placed bilaterally in the canine region (24 implants) to retain mandibular overdentures. Four months following the surgery patients were randomly divided into two equal groups; Group-I received OT Equator Profi le attachment while Group-II received GPS attachment upon which mandibular overdentures were retained. Once patients …