(n.) The act of abrading, wearing, or rubbing off; the wearing away by friction; as, the abrasion of coins.
(n.) The substance rubbed off.
(n.) A superficial excoriation, with loss of substance under the form of small shreds.
Example Sentences:
(1) This resulted in greater uniformity of abrasion over the enamel surface within the biopsy window area and better operator handling characteristics.
(2) Shaping and fine working of restorations necessitated by cervical lesions, abrasions at the necks of teeth, or root surface caries can often be arduous to complete.
(3) The row between two of the media industry's most colourful and abrasive figures took place in the YouView boardroom, located at Desmond's Northern & Shell Thameside skyscraper.
(4) Abrasive brushing techniques wear down the already damaged tooth surfaces.
(5) Orthopedic new approaches to therapy of OA include removal of abnormal tissue to stimulate repair (e.g., burring, abrasion) and grafting (e.g., osteochondral grafts, perichondrium, periosteum) to the subchondral bone.
(6) Before we meet, I have to have a stern talk with myself about not mentioning the game last August in which all Arsenal fans will contend that Barton got new signing Gervinho sent off on his debut; he's had similarly abrasive encounters since with fellow midfielders, Karl Henry from Wolves and Norwich's Bradley Johnson, the latter earning him a three-match ban.
(7) Elevated risks for stomach cancer among carpenters and machinists may reflect exposure to dusts, abrasives, and cutting oils.
(8) The testing was based on The British Standards Institution's specification for toothpastes, using a profilometer technique to evaluate the abrasion.
(9) Creation of smear layers with abrasive paper or dental burs reduced permeability by 80-85%.
(10) Since prosthetic meniscal replacement may be performed in the setting of normal articular cartilage, a prosthesis will be required to match the exact joint configuration, induce the same lubricity, produce the same coefficient of friction, and absorb and dampen the same joint forces (without incurring significant creep or abrasion) as does the normal meniscus.
(11) The titanium alloy strips were treated with citric acid, stannous fluoride, tetracycline HCl, chlorhexidine gluconate, hydrogen peroxide, chloramine T, sterile water, a plastic sonic scaler tip, and an air-powder abrasive unit.
(12) Perhaps grime and dubstep were simply too abrasive and strange to be successfully watered down for mainstream tastes.
(13) Relief from pain occurred in all patients soon after abrasion was performed.
(14) After mechanical denudation of the endothelium with a specially designed abrasive micropipette, spontaneous tone and myogenic responses were preserved.
(15) An abrasively Thatcherite style would be poison to their Lib Dem partners.
(16) Current management of hand injuries includes debridement by abrasive scrubbing with anti-bacterial detergents, surgical excision, or pressure irrigation.
(17) Plaque accumulations were also frequently located in abrasion grooves and surface pits in the enamel, and prolific plaque areas were consistently surrounded by a monolayer of bacterial cells.
(18) Corneal abrasion occurred in two babies and corneal oedema in one baby after forceps delivery but in none of the control group.
(19) However, person-to-person variation can have a great influence on the abrasion process; moreover, only two persons were involved in this pilot study, and no definitive statement can be made about the effect of the toothpastes.
(20) Recently a redesigned air-powder abrasive system was introduced to remove dental plaque and stain from tooth surfaces.
Corrosion
Definition:
(n.) The action or effect of corrosive agents, or the process of corrosive change; as, the rusting of iron is a variety of corrosion.
Example Sentences:
(1) The influence of mucin on the corrosion behaviour of seven typical dental casting alloys was investigated.
(2) Pitting corrosion was seen on low-resistant Ni-Cr alloys, which had less Cr content.
(3) It would appear that there was airborne spread of the organism from these cooling water systems which had not received conventional treatment to inhibit corrosion and organic growth.
(4) Following the injection of suitable media, the arterial tree of 22 post-mortem human stomachs was studied by angiography, or corrosion and micro-dissection.
(5) It was determined that the Ag-rich phase of Ag-Pd-Cu-Au alloy was preferentially attacked to form Ag2S corrosion product.
(6) Crevice corrosion propagation for gamma 2-free vs. gamma 2-containing amalgams was characterized by lower acceleration and maximum rates during the most dynamic period.
(7) The traditional alloys used as metal bases for fixed partial dentures are accompanied by various problems such as corrosion, allergy, toxicity, casting, and preparation for both patient and prosthodontist and in magnetic resonance imaging for diagnosis.
(8) Similarly, significant correlations were found between the individual tissue reaction scores and crevice corrosion scores from the 201 individual sites, again for all devices and for the asymptomatic and symptomatic removal groups.
(9) In the cracks corrosion products usually found on amalgam were identified.
(10) The study included 101 specimens and used an injection-corrosion technique that obtained internal casts of the main trunks and coronary arterial branches.
(11) The use of methyl methacrylate corrosion-casts has made it possible to examine the intracranial microvasculature on a three-dimensional scale with the scanning electron microscope.
(12) The present paper states very briefly the main steps leading to the technique of scanning electron microscopy (SEM) of vascular corrosion casts.
(13) Early corrosion phenomena required re-polishing every three months.
(14) The objective of this study was to determine the in vitro corrosion products that resulted from crevice corrosion of low- and high-copper dental amalgams.
(15) We present eight cases of chemical burns of the eyes from titanium tetrachloride, an acidic corrosive liquid.
(16) They depended on the type of the AC-plates as well as on their age and corrosion intensity.
(17) Corrosion potential and zero resistance ammetry studies were carried out; the effects observed were variable and depended upon the nature of the metal and its surface condition.
(18) The electrical stimulus parameters produced by the Nucleus receiver-stimulator cause no loss of spiral ganglion cells or corrosion of the platinum band electrodes.
(19) Microvascular corrosion casts of chicken embryos between four and 19 days after fertilization have been prepared.
(20) If these points are considered, comparative data, even of quantitative nature, can be obtained from corrosion casts.