Edited sentence: No one can predict the amount of bone loss when biologic width is violated, because it is inherantly unpredictable.Some uneducated dentists feel that they can ignore these risks of violation of biologic width and instead of having their patients undergo a crown lengthening procedure, they simply proceed with the restoration and assert that the periodontal tissues will adapt, thus removing the necessity to surgically perform what they believe to be the "same" biologic outcome.Thus, instead of a 1, 2 or 3 mm that the tooth needed to be exposed to properly restore the tooth, there may be a loss of any amount of bone, from 1 mm to 5 mm or even 10 mm.Thus, too much tooth may be exposed, resulting in unesthetic results and possible mobility of the tooth or teeth in question, thereby putting the patient in a much worse situation than had he or she simply undergone a crown lengthening procedure in the first place.What these dentists do not realize is that, while bone loss will occur in the area in an attempt to adapt to the violation of the bilogic width, the bone loss in such a situation will be unpredictable