An alternative putty/wash impression technique.
Conventionally, custom trays have been made in the laboratory on casts constructed from preliminary impressions. A spaced tray made in this way allows a uniform thickness of impression material of approximately 2 mm which is said to enhance the accuracy of the impression-taking procedure. A technique is described to fulfill this criterion without the need for a primary impression, by constructing a spaced putty custom tray inside the mouth.
Bassi
G S
GS
Liverpool University Dental Hospital, Pembroke Place, Liverpool L3 5PS.
D003760:Dental Impression Materials / Q000737:chemistry / Q000145:classification; D003761:Dental Impression Technique / Q000295:instrumentation; D004867:Equipment Design; D006801:Humans; D011145:Polyvinyls / Q000737:chemistry; D012833:Siloxanes / Q000737:chemistry; D014783:Viscosity; D014885:Waxes / Q000737:chemistry
D003760:Dental Impression Materials; D011145:Polyvinyls; D012833:Siloxanes; D014885:Waxes; C034183:vinyl polysiloxane