Description

ADA 25 – Dental Gypsum Products

This standard gives a classification of, and specifies requirements for, gypsum products used for dentalpurposes such as making oral impressions, molds, casts, dies or model bases, and mounting models. Itspecifies the test methods to be employed to determine compliance with these requirements. It alsoincludes requirements for the labelling of packaging and for adequate instructions to accompany eachpackage.

This standard does not apply to dental bone graft substitutes composed of calcium sulfate hemihydrate(or gypsum).

This revised standard is an identical adoption of ISO 6873:2013, Dentistry-Gypsum products. ADA SCDPWorking Group 2.18 on Investments reviewed the international standard and found it acceptable foradoption as revised ANSI/ADA Standard No. 25. This standard cancels and replaces ANSI/ADA StandardNo. 25:2000 (R2010).