Benzylbutylphthalate (BBzP), also called n-butyl benzyl phthalate (BBP) or benzyl butyl phthalate, is a phthalate, an ester of phthalic acid, benzyl alcohol and n-butanol. It comes under trade names e.g. Palatinol BB, Unimoll BB, Sicol 160, or Santicizer 160. It is mostly used as a plasticizer for PVC. It is considered a toxicant.
Teeth worn down by bruxism. When teeth have been worn down from a habit of tooth clenching and grinding: 1  All of the upper front teeth usually have a similar length. 2  Instead of having gently rounded contours, their biting edges are frequently worn straight across.old has a wear coefficient that's similar to enamel, which means it won't cause excessive damage to opposing teeth. And since it's a metal, crowns made out of it are unlikely to fracture. Of course, the big disadvantage of this type of restoration is its appearance.
A removable partial denture or bridge usually consists of replacement teeth attached to a pink or gum-colored plastic base, which is sometimes connected by metal framework that holds the denture in place in the mouth. Partial dentures are used when one or more natural teeth remain in the upper or lower jaw. A fixed bridge replaces one or more teeth by placing crowns on the teeth on either side of the space and attaching artificial teeth to them. This bridge is then cemented into place. Not only does a partial denture fill in the spaces created by missing teeth, it prevents other teeth from changing position.