Word: plasticizers
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Dates: during 1980-1989
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Police were baffled this summer when a Harvard summer school student and a Cambridge man discovered two skulls on a north Cambridge street. The skulls, found in a plastic bag about a quarter mile from Porter Square, were partially caked with wax. After several weeks of investigation, police officials determined that the skulls were most likely part of some ritual service and unrelated to any crime...
Police were baffled this summer when a Harvard summer school student and a Cambridge man discovered two skulls on a north Cambridge street. The skulls, found in a plastic bag about a quarter mile from Porter Square, were partially caked with wax. After several weeks of investigation, police officials determined that the skulls were most likely part of some ritual service and unrelated to any crime...
Police were baffled this summer when a Harvard summer school student and a Cambridge man discovered two skulls on a north Cambridge street. The skulls, found in a plastic bag about a quarter mile from Porter Square, were partially caked with wax. After several weeks of investigation, police officials determined that the skulls were most likely part of some ritual service and unrelated to any crime...
...most popular cosmetic technique is bonding, in which plastic resins are applied directly to the surface of teeth to mask chips, discolorations and cracks, or even to conceal unattractive gaps between teeth. The procedure is simple, and can be performed by almost any dentist. The resins are painted on teeth that have first been prepared by the application of a mild acid solution. Next a layer of tooth-colored material is applied in the desired shape, then the coatings are hardened with either chemicals or a beam of ultraviolet light and polished. Bonding costs anywhere from...
...those who seek more extensive smile repair or who risk losing their teeth because of overcrowding or bite problems, orthodontics offers a range of alternatives. Clear plastic braces, available for the past ten years, have made orthodontics more palatable to adults, who now account for 20% of the braces business. "Invisible," or lingual, braces, which are applied to the backs of teeth, are even less conspicuous, though some users complain of tongue irritation and mild speech problems...