Transactions of the Illinois State Dental Society Volume 22 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1886 Excerpt: ...a burr. A burr has recently been introduced, known as the half-finishing burr, really a cross between a cavity burr and a gold finishing burr. That serves an admirable purpose in cutting the margin of the cavity away, but it is not as desirable as the little stone, and I hope the time is not far distant when they will be in the market and all supplied with them. Another very important consideration is the final examination of the cavity when the operator believes he has it perfectly prepared by means of the magnifying glass. I regard this as all important. Many times after the cavity has been prepared, and when the operator brings his magnifying glass to bear upon it, he sees imperfections which he would not think of allowing to pass if they had been seen before, so after magnifying it he is able more perfectly to prepare the cavity for the reception of the gold. These little imperfections, that cannot be observed by the naked eye, lead to failure. With their removal the preservation of the teeth is rendered far more certain. I want to say a word about the forms of gold. We oftentimes hear arguments about matters pertaining to our practical work, "which we listen to and applaud, and then go home and think of no more. I have done that a great many times, and a number of years ago when Dr. Black came before the society and taught us how cohesive gold could be rendered non-cohesive by a simple process, I, said, that is good, but I went home and kept on practicing in the old way, or buying gold which was said to be non-cohesive. What I want to say is this, the gold that we buy as non-cohesive in a very large percentage of cases, is not non-cohesive, and the operator who attempts to use it by means of wedge-shaped instruments, will fail, because the gold is...