irreversible

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Related to irreversible hydrocolloid: alginate

irreversible

1. Chem Physics capable of changing or producing a change in one direction only
2. Thermodynamics (of a change, process, etc.) occurring through a number of intermediate states that are not all in thermodynamic equilibrium
References in periodicals archive ?
12 Another study showed that this irreversible hydrocolloid had higher dimensional change values when compared with Blueprint, Cavex CA37, Jeltrate, Orthoprint, Cavex Orthotrace, and Tetrachrom.
Maryan, Disinfection procedures: their effect on the dimensional accuracy and surface quality of irreversible hydrocolloid impression materials and gypsum casts.
Several materials have been used to obtain the moulage impression, including plaster, reversible hydrocolloid, irreversible hydrocolloid, and elastomeric materials such as polyvinylsiloxane and polysulfide rubber.
Making an impression of both the expanded ear and the contours of the helix would require the impression to bend around the helix; hence, irreversible hydrocolloid or alginate is most commonly used when making an auricular impression [14].
8) All materials tested in this study were able to maintain detail reproduction and gypsum compatibility after five days' storage time, but previous studies that evaluated the accuracy and dimensional stability of irreversible hydrocolloid impression materials have demonstrated the necessity of the immediate pouring of the material.
Owen, Disinfection of irreversible hydrocolloid impression material with chlorinated compounds, South African Dent J.
On the final pathology report, the foreign body was identified as dental alginate, which is an irreversible hydrocolloid.
Vasudeva, The effect of pouring time on the dimensional accuracy of casts made from different irreversible hydrocolloid impression materials.
3-6 Irreversible hydrocolloid impression material has dimensional changes as a result of synersis or evaporation of water when exposed to air.
The most commonly used preliminary impression material in this survey was irreversible hydrocolloid by (76%).
A survey of disinfection of irreversible hydrocolloid and silicone impressions in European Union dental schools: epidemiologic study.
The wash impression was taken in irreversible hydrocolloid (Cavex CA37 alginate impression material) and the cast was made in vacuum mixed die stone.