Impression

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Impression

A user's view of an online advertisement. Each time a website viewer sees an online ad, this is one impression. The more impressions an ad receives, the more likely it is that a user will click on it. Most online ads are sold by cost per thousand of impressions. See also: CPC.
References in periodicals archive ?
these include reversible hydrocolloid this includes agar impression material, irreversible hydrocolloid this includes alginate impression material, modelling plastic impressions these includes impression compounds, plaster impression material, wax impression material, silicone based impression materials, polysulfide impression materials and polyether impression materials.3
Radiographic Films Pediatric,Intra-Oral Periapical Radiographic Films (IOP),Vaseline,Meduim fusing Impression Compound,Sand Paper(Dental Use),Heat Cure Acrylic Powder,Cold Cure Acrylic
Polyvinylsiloxane, polysulfide, impression compound, and Zinc oxide eugenol (ZOE) impression materials are thoroughly rinsed under water and immersed in a 5.25% sodium hypochlorite solution for 10 minutes (9-12).
The tray was border- molded using green stick impression compound taking care to avoid overextension.
The most common source of accidental injuries were burs used in high speed hand pieces (60.3%) followed by burns from impression compound (19.1%).
Final Impressions were made using an admix of three parts by weight of impression compound and seven parts by weight of tracing compound.