Chapter 46 - Impression Materials Verified 100% Correct

Colloid - A gelatinous material used to obtain impressions Border molding - The process of using your fingers to achieve a closer adaption of the edges of an impression Elastomeric - Material with elastic properties and is made from rubber Base - Foundation or basic ingredient of a material Centric - To have something centered, such as your maxillary teeth centered over your mandibular teeth Agar - A gelatin type material derived from seaweed Syneresis - The loss of water causing shrinkage Tempering - To bring a material to a desired temperature and consistency Viscosity - Describes a property of fluids with a high resistance to flow Alginate - The material of choice in dentistry for preliminary impressions Hysteresis - To transform a material from on physical state to another Hyrdo - Water Occlusal registration - A reproduction of someone's bite with the use of wax to elastomeric material Catalyst - A substance that modifies or increases the rate of a chemical reaction Imbibition - The absorption of water, causing and object to swell Negative reproduction - An impression is considered a Irreversible Bite registration - Types of impressions which are Considered an expanded function of a dental assistant Bite registration - Type of impression used by a dental lab tech for occlusal relationship Quadrant - Type of stock tray that covers half the arch Perforated - Type of tray which allows impression material to mechanically lock on Custom try - Constructed to fit the mouth of a specific patient Rope wax - Used to extend the length of a tray to accommodate third molars Seaweed - Organic substance of hydro colloid material Strong gag reflexive - Reason for using a fast set aliginate for preliminary impression 3 scoops of water to 3 scoop of power - Ratio for a maxillary impression Aliginate - Another name from irreversible hydrocolloid Mixing bowl - Used to mix irreversible hydro colloid Conditioning bath - Reversible hydro colloid material is placed in what before impression is taken Final - Elastomeric materials are used for what kind of impression Paste Cartridge Putty - Ways that elastomeric materials are supplied Light body - Type of viscosity of a final impression material that is applied first to the prepared tooth or teeth Rubber base - Aka polysulfide Extruder with tip COE syringe - Dentist uses ____ to express the light body impression material around a prepared tooth Automix - System which accomplishes the mixing of final impression material for the assistant Baseplate wax - The material universally used for taking a bite registration Gauze tray - Tray type most commonly selected when polysiloxane bite registration material is used Baseplate wax - Warmed before placement in the patients mouth Readying the tray with heavy body material - While the dentist is dispensing the syringe material around the prepared tooth what should the dental assistant be doing during a final impression procedure Rinsed, disinfected, wrapped in moist paper towel, and placed in a precautionary bag - A preliminary impression is_____ before. Transport to the lab to pour on