YY 0271.2-2016: Dentistry - Water-based cements - Part 2: Resin-modified cements

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Scope

This part of YY 0271 specifies the requirements and test methods for dental resin modified cements for cementing, underlaying or lining and repair.
law. These cements are water-based materials that cure by multiple reactions including acid-base reactions and polymerization reactions.
For example, traditional polyalkate glass ionomer cements are usually made up of ion-dissolving aluminosilicate glass and polyalkenoic acid in water.
The reaction is generated in the environment. The cements referred to in this part of YY 0271 are usually capable of curing by this water-based acid-base reaction, but in addition
It can also be cured by polymerization.
Note. Manufacturers and inspection agencies should pay close attention to the closely related international standards ISO 4049 (YY 1042-2011/ISO 4049.2009, MOD) and ISO 9917-1
(YY 0271.1-2016/ISO 9917-1, IDT). The most appropriate international standards mentioned above should be considered when evaluating any particular product.

Basic Data

Standard ID	YY 0271.2-2016 (YY0271.2-2016)
Description (Translated English)	Dentistry - Water-based cements - Part 2: Resin-modified cements
Sector / Industry	Medical Device and Pharmaceutical Industry Standard
Classification of Chinese Standard	C33
Classification of International Standard	11.060.10
Word Count Estimation	23,249
Date of Issue	2009-06-16
Date of Implementation	2018-06-01
Older Standard (superseded by this standard)	YY 0271.2-2009
Quoted Standard	ISO 1942.1; ISO 1942.2; ISO 1942.3; ISO 1942.4; ISO 1942.5; ISO 3665-1996; ISO 3696; ISO 7491; ISO 8601
Adopted Standard	ISO 9917-2-2010, IDT
Regulation (derived from)	State Food and Drug Administration Announcement No. 2016 (No. 129)
Issuing agency(ies)	State Food and Drug Administration
Summary	This standard specifies the requirements and test methods for cemented, padded or underlayed and restored dental resin modified cements. These cements are water-based materials, through multiple reactions, including acid-base reaction and polymerization to achieve curing. For example, conventional polyalkenylate glass ionomer cements are typically formed by the reaction of ion-releasable aluminosilicate glass with polyalkenoic acid in an aqueous environment. The cement referred to in this standard of YY 0271 is usually capable of being cured by the aqueous base-acid reaction, but additionally by the polymerization reaction.