The product should be manufactured according to the patient's dental model provided by the clinical stomatologist and the drawings and design documents approved according to the prescribed procedures.

The production of the product should meet the design requirements of the oral clinician. The materials used to make the product must be dental materials or medical products that have been approved by the state. The base metal used should be dental special metals and alloys that comply with YY 0620, YY 0621, YY 0626, and ceramics should meet the requirements of YY 0716. The material of the base or tooth of the product shall comply with the requirements of YY 0270, YY 0300 or other relevant standards.

 1. The external form of the product should have the basic characteristics of normal anatomy of the teeth in human physiology, and basically conform to the principles of individual restoration and bionic restoration.
2. The shape and size of the product should match the tooth of the same name, that is, the shape as required by the dental mold and model design unit provided by the medical institution.
3. The contact area between the adjacent surface of the product and the adjacent tooth should be consistent with the contact area of the normal tooth of the same name.
4. There should be contact points on the occlusal surface of the product, and there should be no occlusion obstacles.
5. The product should be free from cracks and bubbles when viewed with the naked eye, and there should be no pores or impurities inside.
6. The surface of the product (except the retaining part) should be smooth and shiny, free from pores, cracks, pits, pits and burrs, and there should be no residual plaster on the tissue surface.
7. The product must not have irritating odors, the resin base must not have pores and cracks visible to the naked eye, the cast base, the connector and the snap ring should be free of pores and impurities, and there must be no white spots.