AIMS AND OBJECTIVE The aim of the study was to evaluate the reliability of cone beam computed tomography (CBCT) obtained image over plaster model for the assessment of mixed dentition analysis. MATERIALS AND METHODS Thirty CBCT-derived images and thirty plaster models were derived from the dental archives, and Moyer's and Tanaka-Johnston analyses were performed. The data obtained were interpr...

A Portland cement plaster wall system has many positive features, but one of the physical properties that it does not possess is flexural strength. It is because of the inability of the Portland cement plaster membrane to bend or flex that glass fiber strands were used in Portland cementbased plaster. There are various types of synthetic fibers on the market that will provide flexural strength ...

The purpose of this prospective study was to compare three different ways of conservative management of isolated fractures of the ulnar shaft: immediate mobilisation, below-elbow plaster cast and above-elbow plaster cast immobilisation. Over a 24-month period, 102 minimally displaced isolated fractures of the distal two-thirds of the ulnar shaft were treated on an outpatient basis. Thirty-two f...

OBJECTIVES The accuracy and reliability of plaster models and digital models acquired with two different surface laser scanners were tested by means of three methods: measurement with calipers, digital measurement with proper software and superimposition of the digital models. METHODS Thirty plaster models with permanent dentition that met the inclusion criteria were selected and scanned with...

PURPOSE Dental measurements have been commonly taken from plaster dental models obtained from alginate impressions can. Through the use of an intraoral scanner, digital impressions now acquire the information directly from the mouth. The purpose of this study was to determine the validity of the intraoral scans compared to plaster models. MATERIALS AND METHODS Two types of dental models (intr...

PURPOSE Plaster casts can cause burns. Synthetic casts do not. Composite plaster-synthetic casts have not been thoroughly evaluated. This study analyzed the temperature from plaster casts compared with composite casts in a variety of in vitro conditions that would simulate clinical practice. METHODS A Pyrex cylinder filled with constant body temperature circulating water simulated a human ext...

Introduction: Suicide with plaster is a new and strange way of suicide which has been only committed in Lorestan province and its vicincy out skirts which have been occurred in recent years. Concerning the points of unclear border of this issue charactristics of victims patient's sign and symptoms, management, suitablecuring way, a study case has been done. Materials & Methods: This study co...

Paris (CaS04)2H20. Excessive heat convey it into anhydrous calcium sulphate CaB^< which takes up water very slowly and does D?. harden and set. 2CaS04.2H20 = (CaSW 2H20+3H20. (CaS04)2H20 = 2CaS 04H2U, Commercial plaster of Paris is manufacture from impure gypsum and therefore contains tn impurities present in the gypsum such as alum10^ iron, silicates, carbonates, lime, etc., which be recognize...