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. 1863 Excerpt: ...the manner of its formation, its effects, and the removal of it from the teeth. Tartar or salivary calculus sometimes accumulates in very Fio. 158. Fig. 159. large quantities, giving to the mouth a most disagreeable and repulsive aspect, and imparting to the breath, not unfrequently, rm almost insufferably offensive ...
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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. 1863 Excerpt: ...the manner of its formation, its effects, and the removal of it from the teeth. Tartar or salivary calculus sometimes accumulates in very Fio. 158. Fig. 159. large quantities, giving to the mouth a most disagreeable and repulsive aspect, and imparting to the breath, not unfrequently, rm almost insufferably offensive odor. Fig. 158 represents a set of teeth encrusted with it, and Fig. 159 a single tooth, presented to the author by Dr. W. Allen, of Massachusetts, with the largest accumulation of this substance he has ever seen in one mass. Its longest diameter is an inch and an eighth, its shortest seven-eighths, and its thickness five-eighths of an inch. Imbedded in its substance is the entire crown and neck of a lower dens sapientiae, which was removed with it. It is of a light brown color, and weighs two drachms and seventeen grains. Professor Austen describes a remarkable case where every tooth above and below had been loosened by alveolar absorption caused by this deposit; no tooth having more than an eighth of an inch depth of socket, and some of them held only by an exceedingly tough attachment to the gum and periosteum. The tartar upon the lower incisors was equal to five times the aiie of the teeth; most of it being on the inside and three-quarters of an inch thick at the base. A singular peculiarity in this eve was the excessive pain of extraction. Small as was the attachment, it was uncommonly firm; and the patient, a working man, was laid up with nervous prostration for two weeks after the operation. CHEMICAL CONSTITUENTS OF SALIVARY CALCULUS. Salivary calculus is composed of phosphate of lime and aninu! matter, combined in various proportions, accordingly as it is hard or soft; consequently no two analyses will yield the same result. The followin...
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