What's the difference between abrasion and contusion?

Abrasion


Definition:

  • (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.

Contusion


Definition:

  • (n.) The act or process of beating, bruising, or pounding; the state of being beaten or bruised.
  • (n.) A bruise; an injury attended with more or less disorganization of the subcutaneous tissue and effusion of blood beneath the skin, but without apparent wound.

Example Sentences:

  • (1) After the diagnosis of a soft-tissue injury (sprain, strain, or contusion) has been made, treatment must include an initial 24- to 48-hour period of RICE.
  • (2) Thirty-two (56%) had moderate-severe pulmonary contusions and 44 (77%) required chest tubes for hemo-pneumothorax.
  • (3) In five of the six cases a violent contusion in the trochanter region was involved as a result of a fall on a hard surface or a traffic accident.
  • (4) The slopes of the recruitment curves were markedly reduced subsequent to contusion injury.
  • (5) Behavioral problems resulting in the use of physical restraint is a clinical problem seen in the acute phase of recovery from cerebral contusion.
  • (6) These data suggest that when less advanced monitoring equipment is available, the differential Pawpeak might be used as a measure of differential lung mechanics in asymmetrical pulmonary contusion.
  • (7) The delayed appearance of syringomyelia after a severe single spinal trauma resulting in contusion of the spinal cord without the complication of arachnoiditis is a more recent issue, but is now well-known.
  • (8) Associated many severe head injuries (brain contusion etc.)
  • (9) The pathogenesis is discussed: a fold of contused myocardium, or immediate or late traumatic obstruction of the anterior descending artery, or both factors at the same time?
  • (10) They reported on 257 incidents, 8% of which were contusions and 24% resulted in fractures.
  • (11) Contusive damage to the choroid and retina limited final visual and anatomic results after blunt rupture of the globe.
  • (12) The nosology of pulmonary contusion is discussed in relation to several factors, including shock, perfusions and associated lesions.
  • (13) I) the absence of variations in average cerebral blood flow, measured by the method of LASSEN, following treatment of traumatic coma by means of hyperbaric oxygenation patients presenting with brainstem contusion, during 2 hours of HBO (at 2.5 times atmospheric pressure) measurements of cerebral blood flow were made using a single detecting probe, before and two hours after terminating HBO.
  • (14) Eight patients had contusion injuries and 12 perforating injuries.
  • (15) Possible pathogenic mechanisms included hemorrhage into previously undetected areas of contusion, damage to cerebral vasculature secondary to rapid perioperative parenchymal shift, and sudden increase in cerebral blood flow combined with focal disruption of autoregulation; of these, the latter mechanism seemed most likely to be responsible for the hematoma formation.
  • (16) Three patients with Down's syndrome had complications: one with a preoperative Brown-Sequard syndrome had transient worsening in the immediate postoperative period, one with a preoperative myelopathy developed a late recurrence of a severe myelopathy that required odontectomy, and another sustained an intraoperative spinal cord contusion followed by postoperative quadriplegia and death due to respiratory failure.
  • (17) Of these, two had a contusion and one had a complete transection of the pancreas.
  • (18) The effects of a single contusion without surface disruption and without fracture of the patella were studied in 40 rabbits.
  • (19) Multivariate analysis identified two factors predictive of a myocardial contusion: an abnormal ECG and an ISS greater than 10.
  • (20) Ninety-eight brain contusions in 17 patients served as a data base for a comparative study of MR and CT for defining brain contusions.