YY/T 0826-2011Dental temporary polymer-based crown and bridge materials (English PDF)

3.1 Polymer-based temporary crown and bridge material

From a monomer, an inorganic filler and/or polymer filler powder or paste and liquid ingredients, suitable for making temporary veneers or fronts after polymerization When the crown; or a polymer based bulk materials, the need for clinical use machining molding for temps or temporary crown.

NOTE: polymerization by adding an initiator and catalyst (self-curing materials) and/or by external energy activated [by heat (thermosetting materials), the visible Light (light-curable materials) and/or ultraviolet light activated].

Category 4 This standard is referred to in the provisional classification of the polymer-based crown and bridge materials are as follows.

--- I type. the need for crown and bridge material molded polymeric clinical use;

--- II type. the need for crown and bridge material machining shaping clinical use.

The standard system will be activated by the polymerization I type polymer-based temporary crown and bridge material is divided into the following types.

--- Category 1. Polymer-based crown and bridge materials by mixing the initiator and catalyst cured (self-curable material);

--- Class 2. Polymer-based crown and bridge materials by external activation energy curable (external energy activated materials), such as heating and/or visible Or ultraviolet light;

--- Group 1. initiator polymer-based crown and bridge materials free of visible or UV-sensitive;

--- Two groups. initiator polymer based crown and bridge materials containing visible or UV-sensitive;

--- Three categories. initiator and catalyst, and initiator polymer based crown and bridge materials polymerization (dual cure material) by an external energy.