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Dental materials regulations

Temperature is an important factor influencing in vivo electrochemical behavior. Internal body temperature is homeo-statically regulated at 37 C, so it is important to test at this value in the laboratory. For dental materials exposed to the oral cavity, the temperature fluctuates due to food cind drink intake and can range from about 0-70°C. Dissolved salts, particularly chlorides, are probably the most influential components for implant corrosion in vivo [2], although by no means the only ones. The internal body electrolyte has the equivalent of 0.9 % NaCl in solution. [Pg.500]

This chapter provides general information on composition, mechanical properties, and corrosion behavior of some medical and dental metals used at present. References are provided for obtaining detailed information, and regulations and economics are discussed briefly. There is a wealth of information on medical and dental materials research that is not cited here and active investigations are continuing. [Pg.834]

Major Applications Display device,5.6 photoresists, lithographic plates,. toner,io paints,n coating materials, 12 hair dye,i3 treatment of mechanical allodynia, regulation of cell proliferation,i5 diagnostic agents for diseases related with amyloid accumulation, treatment of virus infectious diseases, detecting enzyme activity, dental bleaching materialsi ... [Pg.329]

It is at present somewhat uncertain if very low levels of radiatirm are harmful. We cannot avoid all radiation since there is a natural radiation background (with approximate yearly exposure) due to, for example, the cosmic rays (40 millirem at sea level, 250 Rem at 500 m elevation) radium and radon in ground and building material (40 Rem) and potassium 40 (18 Rem). In addition, we can add some man-made radiation sources such as one chest X-ray (40 Rem), one dental X-ray (20 Rem), fallout from nuclear explosions (5 Rem), as well as miscellaneous sources such as TV, CRT, etc., all of which total to 163 Rem/year (for sea level). The average annual radiadmi dose to a nuclear reactor worker in Ontario is 0.68 Rem with an annual limit of 5 Rem set by radiation protection regulations. [Pg.120]

Morflex 190 has found utility as a plasticizer in food packaging material, FVC tubing and dental cushions. Other possible uses of Morflex 190 are found in the Code of Federal Regulations Vol. 21. [Pg.161]

The regulations, referred to as Safer Consumer Products, apply to all consumer products that contain a CoC and are sold, offered for sale, suppUed, distributed, or manufactured in California. There are several exemptions, such as dangerous prescription dmgs and devices and their associated packaging, dental restorative materials, medical devices, food, pesticides, and products used solely to manufacture a product exempted by law. Also exempted are products to be used solely out-of-state and those that are regulated by other regulatory bodies with the same ultimate purpose of safeguarding public health. [Pg.348]


See other pages where Dental materials regulations is mentioned: [Pg.127]    [Pg.842]    [Pg.367]    [Pg.205]    [Pg.332]    [Pg.536]    [Pg.282]    [Pg.409]    [Pg.389]    [Pg.282]    [Pg.83]    [Pg.435]    [Pg.56]    [Pg.27]    [Pg.424]    [Pg.179]    [Pg.978]    [Pg.133]    [Pg.45]    [Pg.171]   
See also in sourсe #XX -- [ Pg.310 ]




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