Statement of problem. Acrylic resin is most commonly used for denture bases. However, acrylic resin has week points of volumetric shrinkage during polymerization that reduces denture fit. The expandability of POSS (Polyhedral Oligomeric Silsesquioxane) containing polymer could be expected to reduce the polymerization shrinkage of denture bases and would increase the adaptability of the denture ...

Acrylic resin bases of removable dentures attract stains and odor-producing organic and inorganic deposits. The use of chemical denture cleanser soaks is the most popular method of denture cleansing. This study was undertaken to compare the efficacy of two different denture cleansers--sodium perborate (Clinsodent) and sodium hypochlorite (VI-Clean)--in removing tea, coffee, turmeric and tobacco...

An accurate and stable record bases is needed for recording Maxillio-Mandibular relationship during the construction of a complete denture, toensure this accuracy the record bases should maintain close adaptation to the cast and to be dimensionallystable. Therefore, this study aimed to evaluate the changes of thickness and deformation of visible light cure acrylic denture base (VLCADB)after cur...

An implant-retained overdenture retained with 2 implants placed in the anterior edentulous mandible is a simple and predictable treatment option. The fabrication and use of this prosthesis requires satisfactory interarch space for adequate denture base thickness and esthetics. This clinical report describes the use of low-profile attachments for this overdenture design to solve the problem of l...

Edentulism is considered a poor health outcome and may compromise the quality of life. Although the number of adults losing their natural teeth is diminishing, there are still large numbers of edentulous adults in the population. A retrospective study was conducted with information derived from literature (from 1984 till 2004) about the patients who experienced ongoing difficulties with new com...

PATIENT A patient visited our hospital for fabrication of functional complete dentures to resolve masticatory disturbance. The case was diagnosed as edentulous jaws with inadequate mandibular position and movement. Therefore, new complete dentures were fabricated and set without reference to the old dentures. DISCUSSION For the diagnosis, clinical treatment and recall, each objective examinat...

The stability of mandibular complete dentures may be improved by reducing the transverse forces on the denture base through linear (noninterceptive) occlusion, selecting an occlusal plane that reduces horizontal vectors of force at occlusal contact, and utilizing a central bearing intraoral gothic arch tracing to record jaw relations. This article is intended to acquaint the reader with one tec...

The new resilient denture liner "M" was evaluated for adhesion, color stability, surface texture, tissue response, deterioration and denture base stability, at periods of 1 month, 3 months and about 30 months after denture liner application. At the observation of approximately 30 months, the usage of 17 dentures had been discontinued within 2 years, and 6 dentures continued to be used. It could...

The purpose of this study was to polish electrolytically a large maxillary denture base-shaped titanium specimen with non-aqueous electrolyte. The test specimen was prepared by bending a sheet of titanium plate. An additional cathode was made by cutting off part of a cylindrical cathode. The effects of the shape and position of the additional cathode were investigated. Selected factors of the a...

In this study, the L*a*b* color system as a color system and light transmittance of the denture base resin reinforced with wire mesh and glass cloth were measured, and the color difference (deltaE*ab) was calculated using L*, a* and b* values which were measured both on a white calibration plate and on a null background. The thicknesses of test specimens, which were reinforced with wire mesh an...