Para. 1 - The Relationship Between Special and Regular School Programs. Special education is an integral part of the total educational enterprise, not a separate order. In any school system, special education is a means of enlarging the capacity of the system to serve the educational needs of all children.
The purity of dental gold is usually 16 karat, but it is slightly more complicated to recycle than jewelry because it may include nonmetal content like tooth enamel or porcelain. The recycler will use a process like acid reduction or reverse electroplating to extract the gold from the nonmetal elements.
Dentists may use metal inlays or onlays in back teeth, or molars, because of metalâs strength and durability. Today, gold is used less often than in the past because it is less cosmetically pleasing than other types of inlays and onlays. Porcelain matches the toothâs color. 1  Previous.