CHAIRSIDE® Massad® Edentulous Low Temp Impression Trays are moldable impression trays for use on edentulous patients. Developed by Dr. Joseph Massad, these proprietary custom trays precisely capture anatomical and physiological characteristics for different impression techniques, including the Massad technique of multiple-viscosity impression materials. Available in two configurations, for upper and lower arches, and five sizes ranging from large (size 5) to medium (size 3) and small (size 1), the trays are recommended for chairside use when fabricating LOCATOR® overdentures.