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.
Other signs of tooth erosion include a yellow discolouration, rounded teeth, or even cracking. You can also damage tooth enamel by grinding your teeth, brushing too hard, or chewing on hard objects, such as pens. Alldritt says it's vital you protect every bit of enamel that you have.