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Excerpt from A Practical Treatise on Operative Dentistry Points of Deposit - The points at which salivary calculus is deposited in the greatest quantities upon the teeth, are in the vicinity of the orifices of the sali vary ducts; and hence it is found most abundant on the lingual surfaces of the inferior anterior teeth, and on the buccal surfaces of the superior molars. Fre quently, also, it collects in considerable quantities upon the external surfaces of the inferior front teeth. The points upon the teeth to which it most readily attaches, are at the necks, immediately beneath the free margin of the gum, and at the termination of the enamel where it is thickest. A nucleus once formed, and it encroaches upon the crown of the tooth, if no means are employed to prevent its lodgment, at a rate determined by the condition of the saliva. It is deposited first and most abundantly on the necks of the teeth, because here the saliva first comes in contact with these organs, and here remains for the longest periods and in the largest quantities. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.