title: [The effect of cryotreat on the size of the medium and high melting-point castable alloys].
abstract: Castable alloys are widely used in prosthodontics. The properties of alloys can be improved by cryotreat. This method may cause a size alteration of materials. This study revealed the effects of different cooling rates on the size of the castable alloys. The results showed: 1. The rapid cooling rate caused significant deformation of the alloys. 2. The 3 degrees C/min rate and the 1 degree C/min rate did not cause any significant deformation of the alloys. 3. The 3 degrees C/min rate and the 1 degree C/min rate did not show any difference in their deformation causing ability. 4. The rapid cooling rate and the slow cooling rate (3 degrees C/min and 1 degree C/min) showed significant difference in their deformation causing ability. These results suggested that 3 degrees C/min was recommendable as a cooling rate of the cryotreat of the medium and high melting-point castable alloys.
authors.affiliation: College of Stomatology, West China University of Medical Sciences.
authors.forename: Z
authors.initials: Z
authors.lastname: Zhu
authors.forename: X
authors.initials: X
authors.lastname: Jiang
authors.forename: X
authors.initials: X
authors.lastname: Mao
mesh_terms: D003080:Cold Temperature; D003722:Dental Alloys; D013696:Temperature
chemical_list: D003722:Dental Alloys