OBJECTIVES Long-term use of orthodontic appliances and fixation ligatures creates a favorable environment for the accumulation of oral normal microflora and increases the risk of enamel demineralization and periodontal disease. The aim of this study was to compare the antimicrobial effects of Zataria Multiflora extract and 0.2% chlorhexidine (CHX) mouthwash on experimentally contaminated orthod...

A polymer network can absorb a solvent and swell, forming an elastomeric gel. The model of ideal elastomeric gels is based on two assumptions. First, the volume of a gel is the sum of the volume of the dry network and that of the solvent. Second, the free energy of the gel is the sum of the free energy due to stretching the network and that due to mixing the polymer and the solvent. These assum...

BACKGROUND Autoclave sterilization and microwave sterilization has been suggested as the effective methods for the disinfection of elastomeric impressions, but subjecting elastomeric impressions to extreme temperature may have adverse effects on critical properties of the elastomers. AIM To evaluate the effect of chemical disinfection as well as autoclave and microwave sterilization on the su...

Background: In bilateral partial edentulous condition modified Mc Lean’s Impression technique is most commonly advised, this over impression procedure may be time consuming clinically and possible errors too can be induced while recording. The purpose of this study was to determine the efficacy ofsingle custom tray using medium body elastomeric impression material overmodified Mc Lean’s impress...

BACKGROUND AND OBJECTIVES The number of bilateral total hip arthroplasties (THA) has been increasing every year. Postoperative analgesia by continuous perineural infusion of local anesthetic has been shown favorable results when compared to systemic analgesia. The use of elastomeric pumps has increased patient satisfaction when compared to electronic models. The objective of this report was to ...

We present the design, development and fabrication of an anatomically accurate, inhomogeneous, elastomeric cardiac model for in vitro testing of cardiac devices. Segmentation of clinical data was performed with Mimics software (Materialise). Mold creation and optimization was performed in 3-Matics (Materialise) using the tooling module. A total of twenty-one molds were designed including sixtee...

We present a new approach for producing elastomeric optical fibers with an behaviour corresponding to few-mode fiber. Different have been produced by first fabricating thermoplastic polyurethane preforms and subsequently drawing them. The fiber attenuation has measured the cut-back technique bending transmission tolerance evaluated. potential assessed through two basic experiments in order high...