Development of Novel Polyimide Build-up Material

Longevity of Amalgam Build-Up Restorations in Endodontically Treated Teeth

Background and Aim: Restoration of endodontically treated teeth is one of the most important and challenging topics in restorative dentistry. Longevity of such restorations is an essential factor in treatment planning. Amalgam build-up is a conservative method for restoration of endodontically treated teeth. Therefore, this study aimed to assess the longevity of this type of restoration in endo...

Novel Thermoplastic Polyimide Composite Materials

Material-independent determination of anchoring properties on rubbed polyimide surfaces.

A material-independent method for determining liquid-crystal (LC) anchoring energy on rubbed polyimide (PI) surfaces has been devised. This method exploits the changes in the easy axis of rubbed PI film induced by exposure to linearly polarized UV (LPUV) light. The distribution of PI chains in a rubbed film is approximated by a Gaussian function and its width determined from the measured rotati...

A build-up impression technique for the edentulous mandible using various viscosities of silicone impression material.

most difficult impression to make during complete denture construction. Ill-fitting lower complete dentures are often a source of discomfort for patients. While implant retention helps to achieve vertical stability, unless a completely implant-supported denture is being made, the denture must have good tissue contact and correct anatomical extension. An impression technique is required that cap...

Measurements of output factors using different ionization chambers and build up caps

Background: The aim of this work was to study the output factors for Linac using different ionization chambers and build up caps. Materials and Methods: Output factors were measured for open square fields (3 × 3 cm to 40 × 40 cm) defined by collimator jaws for 6 and 15 MV photon beams from a Varian Clinac 2100C accelerator were measured. The measurements in air were performed using Com...