Impression compound is also available in sticks of various colours indicating different softening temperature ranges e.g. The philosophy behind that was a viscous admix of impression compound and tracing compound removes any soft tissue folds and smoothes them over the mandibular bone. i) Kneading. Combined surgical and prosthetic management of severely atrophied mandibular ridge with shallow vestibule. Zoe impression paste, polysulfide; iii) Vigorous mixing. Once in the mouth, the material will harden and record the detail of the soft tissues. ADA specification no 3 … Kerr Impression Compound comes in cakes of convenient size for full or partial impressions and sticks for copper band impressions or for adding to the periphery of an impression or custom tray. NOTE: Colors may vary. e.g. Impression compound is a thermoplastic material; it is presented as a sheet of material, which is warmed in hot water (> 55–60 °C) for one minute, and loaded on a tray prior to impression taking. How to use compound in a sentence. A) Hand mixing. Each color has a controlled working temperature for a specific use. n. 1. The impression compound has a flow rate of 85% as hereinafter defined at mouth temperature, and a substantially lesser flow rate at room temperature and thus, sets quickly when removed from the mouth. Compound definition is - to put together (parts) so as to form a whole : combine. Some compounds are written as separate words, such as housecat. Impression compound is usually used for taking primary impressions of the edentulous ridge prior to the construction of a custom-made impression tray for complete dentures. impression plaster synonyms, impression plaster pronunciation, impression plaster translation, English dictionary definition of impression plaster. Every compound functions as a unit, but not all compounds are written as single words. However, the method of disinfection should be verified with the material manufacturer to prevent distortion of the impression or loosening of the adhesive bond between the impression tray and the impression material. ZOE and compound impressions Impression compound isrigid,reversible impression materialsets by physical change. The impression material will set chemically or physically and then may be removed from the mouth for use extra orally. Impression plaster; V) Based on the manipulation. Impression materials are loaded into trays in their initial low viscous form (with the exception of impression compound) and then placed in the patient’s mouth. Phenols with a high alcohol content, for example, can desiccate some impression materials. Other compounds are written with hyphens, such as … e.g. Define impression plaster. impression material: any substance or combination of substances used for making a negative reproduction or impression. It softens on heating and hardens oncooling. 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