OBJECTIVE To test the durability of sealants applied for prevention of erosive dentine mineral loss under erosive/abrasive conditions. METHODS Forty-eight bovine dentine samples doped with (32)P were randomly allocated to four groups (1-4). All samples performed a de- and remineralizations pre-cycling (6 × 1 min erosion in HCl: pH 3.0, mean time and overnight immersion in artificial saliva) f...

Chemical mechanical polishing (CMP) has emerged as the planarization technique of choice in both front-end (STI) and back-end (ILD) integrated circuit manufacturing. Conventional CMP processes utilize a polyurethane polishing pad and liquid chemical slurry containing abrasive particles. More recent work has examined the use of a fixed abrasive CMP pad [1], in which abrasive material is embedded...

Surface junction thermocouples are used extensively for transient heat flux measurements, but their accuracy is dependent on the effective thermal product (TP) of the gauge and this can be a function of the time scale of interest. In the present work the response of surface junction k-type thermocouples was investigated experimentally using a water droplet calibration technique (for millisecond...

OBJECTIVE The aim of this retrospective study was to analyze collected data concerning the effect of an air-abrasive device (Perio-Flow®) during surgical treatment of peri-implantitis without addition of any antimicrobials. METHOD AND MATERIALS Data reports from 22 implants with peri-implantitis surgically treated using either an air-abrasive device (Perio- Flow) (test group), or plastic cure...

In most of the engineering applications, such as mining, metallurgy, agriculture; equipments are failed by the abrasive wear. The data as obtained form ministry of Research and Technology indicates that the percentage cost of abrasive wear in federal republic of German in metallurgy industry is 40%, mining industry 30%, agriculture 20% and production engineering 10%, and so the material selecti...

Eroded enamel is more susceptible to abrasive wear than sound enamel. New toothpastes utilizing diamond particles as abrasives have been developed. The present study investigated the abrasive wear of eroded enamel by three commercially available toothpastes (one containing diamond particles) and compared it to the respective wear of sound enamel caused by these toothpastes. Seventy-two bovine e...

An air-powder abrasive device used to remove stain and debris adherent to tooth surface is now available for use by dentist. Air Flow was evaluated for its effectiveness in removing stains and debris from teeth. Split design in anterior was used, and half was treated with the device and the contralateral side with a brush cone and tooth polishing paste. Time required by each method to remove st...