Applicable research in practice: understanding the hydrophilic and flow property measurements of impression materials.
The flow properties and hydrophilicity of an impression material are key factors that affect its performance. This article details in vitro studies comparing these properties in 1 polyether and several vinyl polysiloxane light-body impression materials. The first series of studies examined the materials' flow properties used in a "shark fin" measurement procedure to determine which exhibited superior flow characteristics. The second series of studies reviewed the hydrophilic properties of the materials. Video analysis was used to record contact angle measurements at the early- and late-stage working times. Results showed 1 polyether material to be more hydrophilic. Applying this knowledge to practice, the authors present a clinical case in which a polyether's superior flow and quality of detail were used to make impressions for a patient receiving 8 single-unit zirconia crowns.
Perry
Ronald D
RD
Tufts University School of Dental Medicine, Boston, Massachusetts, USA.
Goldberg
Jeffrey A
JA
Benchimol
Jacques
J
Orfanidis
John
J
D003442:Crowns; D003760:Dental Impression Materials / Q000737:chemistry*; D003761:Dental Impression Technique; D004987:Ethers / Q000737:chemistry; D005260:Female; D006801:Humans; D008422:Materials Testing; D008875:Middle Aged; D011145:Polyvinyls / Q000737:chemistry; D012212:Rheology; D012833:Siloxanes / Q000737:chemistry; D014783:Viscosity; D017155:Wettability
D003760:Dental Impression Materials; D004987:Ethers; D011145:Polyvinyls; D012833:Siloxanes; C034183:vinyl polysiloxane