abstract introduction: impression making is one of the most important steps in fixed prosthodontics. due to contra-dictory opinions on the issue of the accuracy of silicone impression material as a function of technique, this study was carried out to assess the dimensional accuracy of master casts made by rapid silicone material as a function of three impression techniques: with 2mm space, with...

Impressions, dentures and other dental appliances may be contaminated with oral micro-flora or other organisms of varying pathogenicity from patient's saliva and blood. Several approaches have been tried to control the transmission of infectious organisms via dental impressions and because disinfection is less effective and has several drawbacks for impression characterization, several steriliz...

Despite prior recommendations for removal, latex gloves remain prevalent in dental clinical practice because of puncture resistance, durability, and user satisfaction.[1] However, latex gloves can impair polymerization of vinyl polysiloxane impression material (VPS) thus, resulting in inaccurate and distorted impressions, which may require the clinician to repeat the impression procedure leadin...

PURPOSE Maxillofacial prostheses are usually fabricated on the basis of impressions made with dental-impression material. The extent to which the prosthesis reproduces normal facial morphology depends on the clinical judgment of the individual fabricating the prosthesis. This paper describes a computer-aided design and manufacturing (CAD/CAM) system for the fabrication of maxillofacial prosthes...

Introduction: In 2001, Cavex presented the first test results, which showed 5 days dimensional stability for Cavex ColorChange. More than 10 years we used this information to show our customers the high quality and stability of our products. In the meantime, our Research & Development department worked on improvements of the alginate impression materials. We formed close cooperation’s with supp...

Aims: To investigate the effect of adding nanoparticles on compressive strength alginate impression material. Materials and Methods: In this study, two types were added to materials: silver zirconium oxide at four concentrations: 0.5 %, 1%, 2%, 5% by weight. Compressive was tested for 45 samples made according American Dental specification no.18 Results: The addition did not alter material, whe...

Three-dimensional computer models of dental arches play a significant role in prosthetic dentistry. The microfocus X-ray CT scanner has the advantage of capturing precise 3D shapes of deep fossa, and we propose a new method of measuring the three-dimensional morphology of a dental impression directly, which will eliminate the conversion process to dental casts. Measurement precision and accurac...