BS 6747:1987
Current
The latest, up-to-date edition.
Specification for orthodontic resins
Hardcopy , PDF
English
30-01-1987
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Foreword
Committees responsible
Specification
1. Scope
2. Definitions
3. Materials
4. Manufacturer's instructions
5. Sampling
6. Preparation and conditioning of tests specimens
7. Packaging
8. Marking of packages and containers
Appendices
A. Method for determining thermal stability of liquids
B. Method for determining transverse deflection
C. Method for determining residual methyl methacrylate
monomer
D. Method for determining water sorption
E. Guidance on the determination of the diffusion
coefficient
F. Method for determining impact strength
G. Method for determining hardness and creep
H. Bibliography
Figures
1. Water uptake
2. Pattern of the test specimen plate for transverse
deflection test
3. Pattern of the test specimen plate for residual
methyl methacrylate monomer
4. Pattern of test specimen plate for water sorption
5. Pattern of test specimen plate for impact strength
Requirements for resins made from acrylic polymers used in the construction of removable orthodontic appliances.
| Committee |
CH/106/2
|
| DevelopmentNote |
Supersedes 81/52747 DC (09/2005) Reviewed and confirmed by BSI, November 2012. (10/2012)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard specifies performance requirements and describes methods of test 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 by means of a chemically-activated system accompanied by a combination of heat and pressure.
This standard does not specify requirements for dough-moulded orthodontic resins, which are specified in BS2487.
NOTE The titles of the publications referred to in this standard are listed on the inside back cover.
| BS 4492:1983 | Glossary of dental terms |
| BS 2487:1980 | Specification for denture base resin |
| BS 4269-1:1987 | Dental elastic impression materials. Specification for elastomeric impression materials |
| BS 2782-3 Method 359:1984 | Methods of testing plastics. Mechanical properties Determination of Charpy impact strength of rigid materials (Charpy impact flexural test) |
| BS 5828:1980 | Methods of biological assessment of dental materials |
| BS 427-1:1961 | Method for Vickers hardness test Testing of metals |
| BS 4796:1972 | Specification for dental artificial stone |
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