What is BS 6747 - Orthodontic resin specifications about?
BS 6747 is a European standard that outlines the performance requirements and describes methods of testing for the resins made of acrylic monomers and polymers and used in the construction of removable orthodontic appliances.
Such resins, prepared from a powder (polymer) and a liquid (monomer), are polymerized in an open mould using a chemically activated system accompanied by a combination of heat and pressure.
Note: BS 6747 does not specify requirements for dough-moulded orthodontic resins, which are specified in BS 2487.
Who is BS 6747 - Orthodontic resin specifications for?
BS 6747 on orthodontic resin specifications is useful for:
- Manufacturers of orthodontic resins
- Test centres or any person involved in the testing of orthodontic resin.
- Design engineers
Why should you use BS 6747 - Orthodontic resin specifications?
An orthodontic resin is a self-cure material used to construct orthodontic appliances, such as maintainers and retainers. It consists of a clear powder and a choice of pink or clear liquids. Appliances may be fabricated by the dusting, pouring, or packing methods.
BS 6747 guides you regarding the materials to be used for manufacturing orthodontic resins. Additionally, provides instructions for storing, preparing and processing the resin and guides you in sampling, preparation and conditioning of test specimens, packaging, and marking of packages and containers of orthodontic resins.
BS 6747 also provides you with a method for determining the thermal stability of liquids, a method for determining transverse deflection, a method for determining residual methyl methacrylate monomer, a method for determining water sorption, a method for determining impact strength and a method for determining hardness and creep of orthodontic resins.
Thus, assists you in determining and enhancing the performance and efficacy of orthodontic resins.
