Abstract: Purpose: The longevity of an ocular prosthesis is directly related to the resistance to erosion of its material. The purpose of this study was to evaluate the effects of chemical disinfection and the method of investment on the microhardness of ocular prosthesis acrylic resin. Materials and Methods: Thirty-two test specimen investments were obtained in two silicones. A segment was c…
Abstract: Purpose: To assess dietary and nutritional changes among the elderly following prosthodontic rehabilitation. Another objective was to study the relationship, if any, between diet and nutrition, with extent of edentulism and different types of prosthodontic treatment. Materials and Methods: One hundred and thirty-five patients who satisfied the inclusion and exclusion criteria and ag…
Purpose: When restoring facial defects, maxillofacial prosthodontists and anaplastologists are often limited by material deficiencies. Silicone elastomers bonded to a polyurethane liner best satisfy the functional and esthetic requirements necessary for facial prostheses; however, patients using silicone prostheses with polyurethane liners often experience varying degrees of debonding at the p…
Abstract Purpose: The purpose of this study was to evaluate the fracture resistance of endodontically treated teeth between those with four walls and those with three walls of remaining coronal tooth structure and the effect of the site of the missing coronal wall. Materials and Methods: Thirty-two endodontically treated second mandibular premolars were decoronated, leaving 3 mm above the ce…
Abstract: Purpose: The purpose of this study was to test whether calmodulin-like protein (CLP) is expressed in normal human oral mucosal cells and if downregulation of CLP occurs in malignant transformation. Materials and Methods: Oral mucosal tissue was taken from three individuals in a double-blind manner. The samples were cut, measured, and homogenized. Total RNA was extracted and reverse …
Purpose: To measure the pH values of commonly used oral moisturizers and to evaluate their erosive potential using a gravimetric analysis. Materials and Methods: A pH analysis was performed for seven commercially available oralmoisturizers using a calibrated pHmeter. The pH recordingwas repeated three times, from three different bottles each of the same product. The gravimetric analysis was…
Purpose: This in vitro study investigated the effect of grooves, remaining tooth structure, and their combination on tooth fracture resistance of endodontically treated anterior teeth with cast dowel and cores. Materials and Methods: Sixty extracted maxillary anterior teeth of similar dimensions were endodontically treated and then randomly divided into three groups of 20 teeth each. The teeth…
This study was undertaken to design an updated connection system for an eyeglasssupported nasal prosthesis using rapid prototyping techniques. The substructure was developed with two main endpoints in mind: the connection to the silicone and the connection to the eyeglasses. The mold design was also updated; the mold was composed of various parts, each carefully designed to allow for easy relea…