YY 0621-2025 Pending Industry standards-Medicine

YY 0621-2025 Dentistry—Compatibility testing for metal-ceramic and ceramic-ceramic systems

YY 0621-2025 Dentistry—Compatibility testing for metal-ceramic and ceramic-ceramic systems

Publish Date: 2025-06-18 Implement Date: 2028-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: YY 0621-2025

Standard Type: Industry standards

Standard Status: Pending

is_force_gb: no

CCS Name: Dental instruments, equipment, and materials

ICS Name: Dental materials

Publish Date: 2025-06-18

Implement Date: 2028-07-01

Pages: 16 pages

Scope

This document specifies the requirements for evaluating the thermodynamic compatibility between the surface porcelain and the metal or ceramic base materials used in dental restorations, and describes the corresponding test methods.
This document is only applicable to materials used in combination. A claim of compliance cannot be made for single materials.
The requirements for ceramic materials are specified in GB 30367. The requirements for metal materials are specified in GB 17168.

Development Information

Word Count: 19 Thousand words Pages: 16 pages

Replace the following standards

YY 0621.1-2016 Dentistry—Compatibility testing—Part 1:Metal-ceramic systems YY/T 0621.2-2020 Dentistry—Compatibility testing—Part 2:Ceramic-ceramic systems

Referenced Standards

GB/T 9937-1988 Terms associated with the testing and the operating of dental material, instruments and equipment GB/T 9937-2020 Dentistry—Vocabulary GB/T 9937.1-2008 Dental vocabulary—Part 1:General and clinical terms GB/T 9937.2-2008 Dental vocabulary—Part 2:Dental materials GB/T 9937.3-2008 Dental vocabulary—Part 3:Dental instruments GB/T 9937.4-2005 Dental vocabulary—Part 4:Dental equipment GB/T 9937.5-2008 Dental vocabulary—Part 5:Terms associated with testing GB/T 17168-1997 Dental casting precious metal alloys GB/T 17168-2008 Dental casting precious metal alloys GB 17168-2013 Dentistry—Metallic materials for fixed and removable restorations and appliances GB 30367-2013 Dentistry—Ceramic materials GB 30367-2025 Dentistry—Ceramic materials

Adopt standards

ISO 9693:2019

Related Standards

GB/T 6387-1986 Replaced

GB/T 6387-1986 Vocabulary of dental materials

Publish Date: 1986-05-14

YY 0270-2003 Replaced

YY 0270-2003 Dentistry—Denture base polymers

Publish Date: 2003-06-20

YY 0462-2003 Replaced

YY 0462-2003 Dental gypsum products

Publish Date: 2003-06-20

YY 0463-2003 Replaced

YY 0463-2003 Dental phosphate-bonded casting investments

Publish Date: 2003-06-20

YY 1042-2003 Replaced

YY 1042-2003 Dentistry—Polymer-based filling,restorative and luting materials

Publish Date: 2003-06-20

YY 0493-2004 Replaced

YY 0493-2004 Dentistry—Elastomeric impression materials

Publish Date: 2004-11-08