Chong, Y H Effectiveness of intraoral delivery tips in reducing voids in elastomeric impressions. [electronic resource] - Quintessence international (Berlin, Germany : 1985) Nov 1991 - 897-900 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0033-6572 Subjects--Topical Terms: AirDental Impression MaterialsDental Impression Technique--instrumentationPorositySilicone Elastomers