background and aims. although microwave irradiation has been used for disinfection of dental stone casts, there are concerns regarding mechanical damage to casts during the process. the aim of this study was to evaluate the effect of microwave irradiation on the compressive strength (cs) and diametral tensile strength (dts) of stone casts. materials and methods. in this in vitro study, 80 cylin...

The current research included the preparation of dental stones from local raw gypsum and boiling it with a solution 30% sodium chloride using reflex method. According to study, there is no country in Middle East that produces stones. As details method manufacturing are not published considered very confidential by international companies, when taking into account price stone twice plaster, beco...

1. Urinary stones 1.1 Pathogenesis 1.2 Classification of stones 1.2.1 Calcium stones 1.2.2 Uric Acid Stones 1.2.3 Magnesium Ammonium Phosphate Stones, struvite or infection stones 1.2.4 Cystine 1.3 Risk factors 1.3.1 Non-genetic factors 1.3.1.1 Diet 1.3.1.2 Body size 1.3.1.3 Environment 1.3.2 Genetic factors 2. Other urological stones: Testicular microlithiasis 3. Biliary and gallbladder stones...

BACKGROUND To develop a method for systematic classification of gallbladder stones, analyze the clinical characteristics of each type of stone and provide a theoretical basis for the study of the formation mechanism of different types of gallbladder stones. METHODOLOGY A total of 807 consecutive patients with gallbladder stones were enrolled and their gallstones were studied. The material com...

Amelogenesis imperfecta (AI) is a genetically and clinically heterogeneous group of inherited dental enamel defects. Commonly described as an isolated trait, it may be observed concomitantly with other orodental and/or systemic features such as nephrocalcinosis in Enamel Renal Syndrome (ERS, MIM#204690), or gingival hyperplasia in Amelogenesis Imperfecta and Gingival Fibromatosis Syndrome (AIGF...

Introduction: Few researches have been conducted researches on the influence of the type of dental stone used for fabrication of casts on the adaptation of denture bases. The purpose of this study was to compare the effect of two types of stone casts on the accuracy of fit in complete denture bases. Methods: Using sixty fully replicated master casts obtained by duplicating a metal die represent...

urolithiasis has become a worldwide problem with the prevalence of the disease increasing over the past few decades. while various treatment modalities have evolved over the years, discrepancies exist regarding the clinical indications and the efficacy of each of these treatment options. in the present review, we aim to review the current treatment modalities for urinary tract stones to provide...