American Dental Association Materials

Dentistry. Most casting alloys meet the composition and properties criteria of specification no. 5 of the American Dental Association (37) which prescribes four types of alloy systems constituted of gold—silver—copper with addition of platinum, palladium, and 2inc. Composition ranges are specified, as are mechanical properties and minimum fusion temperatures. Wrought alloys for plates also may include the same constituents. Similarly, specification no. 7 prescribes nickel and two types of alloys for dental wires with the same alloy constituents (see Dental materials). 

Guide to Dental Materials and Devices, 7th ed., American Dental Association, Chicago, 1974—1975. 

Anusavice, K. J. Council on Dental Materials, Instruments and Equipment Report on Base Metal Alloys for Crown and Bridge Applications Benefits and Risks , Journal of the American Dental Association, 111, 479-483 (1985)... 

Hembree, J. H. Andrews, J. T. (1978). Microleakage of several class V anterior restorative materials a laboratory study. Journal of the American Dental Association, 97, 179-83. 

Stanley, H. R., Swerdlow, H. Buonocore, M. G. (1967). Pulp reactions to anterior restorative materials. Journal of the American Dental Association, 75, 132-11. 

The DTS has been used as a strength criterion for meeting American Dental Association specification 27. Reported DTS values for microfilled composites range from 30-50 MPa and for the conventional and hybrid composites, from 45-75 MPa [199-204], The wide variation in the ranges of properties reported may relate not only to differences in materials, but also to test methodologies such as state of hydration, surface roughness of the samples, and strain rates [205,206]. 

Northwestern University, Department of Biological Materials, The McGaw Medical Center, Chicago, IL 60611 and American Dental Association, Council on Dental Materials, Instruments and Equipment, Division of Scientific Affairs, Chicago, IL 60611... 

Ideally, materials for medical and paramedical applications should be tested or evaluated at three level (1) on the ingredients used to make the basic resin, (2) on the final plastic or elastomeric material, and (3) on the final device. Organizations such as the Association for the Advancement of Medical Instrumentation, the U.S.A. Standard Institute, and the American Society for Testing and Materials (F4 Committee) have developed toxicity testing programs for materials used in medical apphcations. The American Dental Association has recommended standard procedures for biological evaluation of dental materials [74]. 

American Dental Association Recommended standard procedures for biological evaluation of dental materials, /. Am. Dent. Assoc., 84, 382, 1972. 

Certain commercial materials and equipment are identified in this paper to define adequately the experimental procedure. In no instance does such identification imply recommendation or endorsement by the National Institute of Standards and Technology, the American Dental Association Health Foundation, and... 

A variety of sealants have been explored or developed (168), with many people having one or more applications of a sealant. Sealants are vital for promotion of adhesion, which significantly reduces caries formation (169-177). Pit and fissure sealants are covered under the American Dental Association (ADA) Acceptance Program. These materials are used to seal high caries-susceptible pits and fissures of the deciduous and permanent molars, and also to seal microspaces between the tooth and restorative materials, enabling these materials to adhere firmly both to prepared cavity walls and to other restoratives. They provide dental pulp protection and protection from secondary caries formation. 

Composite materials used in dentistry may be classified for convenience into two groups those designed for restorative purposes and those designed for use in prostheses. The American Dental Association periodically reports the status (2) and updates the requirements for these materials (3,4). 

American Dental Association Specification 27 on Direct Restorative Materials. 

---