Background: The purpose of this study was to compare and evaluate the effects of metal primer on the shear bond strength of denture base resin to base metal alloy after electrolytic and laser etching. Materials and Methods: A total of 48 cobalt‐chromium (Co‐Cr) alloy specimens were fabricated. The specimens were divided into 6 groups of 8 specimens each. Group I: Sandblasting (control group). G...

UNLABELLED In our country quartz is widely used for denim sandblasting and new cases with silicosis are defined. Silicosis is a preventable occupational lung disease caused by inhaled dust containing crystalline silica and no effective treatment for silicosis is available (1). CASE 1: A 23-years old man was admitted to the hospital with dyspnea on effort and cough. He had worked in a denim manu...

The purpose of this in vitro study was to evaluate the effect of different surface treatments on the shear bond strength of a resin-based cement to porcelain. Sixty pairs of 50% aluminous porcelain discs were fabricated. In each pair, one disc measured 6 mm in diameter X 3 mm thickness (A) and the other measured 3 mm in diameter X 3mm thickness (B). The specimens were randomly assigned to 6 gro...

AIM OF THE WORK Aim of the work was to execute a review of the international literature about the cementation of zirconia restorations, analyzing the properties of the cements most commonly used in clinical activities. MATERIALS AND METHODS It was performed, through PubMed, a bibliographic search on the international literature of the last 10 years using the following limits: studies in Engli...

The objective of this study was to investigate the influence of different conditioning procedures on various ceramic microstructures and bracket adhesion. Ceramic specimens (feldspathic, leucite, leucite-free, and fluorapatite) were mechanically conditioned (n = 20 per ceramic type) with conventional hydrofluoric acid (5 per cent HF; 60/30 seconds), buffered hydrofluoric acid (9.6 per cent BHF;...

PURPOSE To evaluate the effects of surface treatments on shear bond strength (SBS) between microwave and conventionally sintered zirconia core/veneers. MATERIALS AND METHODS 96 disc shaped Noritake Alliance zirconia specimens were fabricated using YenaDent CAM unit and were divided in 2 groups with respect to microwave or conventional methods (n=48/group). Surface roughness (Ra) evaluation wa...

ing cerebral embolization due to detached atherosclerotic material from the ascending and arch aortic intima, caused by the “sandblasting” effect of the high-velocity jet from an aortic cannula. Although the number of cases having pedunculated atheroma, mural thrombus in ascending aorta, or aortic arch is low, I believe this method helps to treat such cases. In addition, the safety of starting ...

Aim. The paper aims to develop a process for treating the back side of silicon slabs and giving them surface texture that enables good adhesion with printed metal an even thickness no mechanical stress, cracks or chipping. That is achieved by sandblasting before contact material application. Silicon carbide (SiC) particle size not exceeding 6 um used as abrasive material. Methods. proposed meth...

The spread of raft-farming mussels in river estuaries around the world produces about 1.4 million tons shell waste which mainly ends up landfills. In addition, United Nations and European Union promote sustainable development goals (SDG) for food production, requires adequate management to analyse life cycle reuse goods materials. This work proposes use shells by-products created by canning ind...