Liu, Wenjuan The influence of the negative ion powder on the properties of alginate impression materials. [electronic resource] - Dental materials journal Jul 2019 - 522-527 p. digital Publication Type: Journal Article ISSN: 1881-1361 Standard No.: 10.4012/dmj.2017-280 doi Subjects--Topical Terms: AlginatesCompressive StrengthDental Impression MaterialsMaterials TestingPowdersPressure