. Principles and practice of filling teeth. into the pathology of this subject, and yet it would seem desirable 10 PEINCIPLES AND PRACTICE OF FILLING TEETH. to briefly indicate some of the deleterious effects produced by de-posits when allowed to remain. The encroachment of calculus along the neck and root of atooth, if left unchecked, results in an absorption of the gum, theperidental membrane, and even the alveolar process, so thatfinally the support of the tooth is destroyed, and it is allowed totopple over and fall out. It is estimated by many observant prac-titioners that more teeth are l
. Principles and practice of filling teeth. into the pathology of this subject, and yet it would seem desirable 10 PEINCIPLES AND PRACTICE OF FILLING TEETH. to briefly indicate some of the deleterious effects produced by de-posits when allowed to remain. The encroachment of calculus along the neck and root of atooth, if left unchecked, results in an absorption of the gum, theperidental membrane, and even the alveolar process, so thatfinally the support of the tooth is destroyed, and it is allowed totopple over and fall out. It is estimated by many observant prac-titioners that more teeth are lost as the result of diseased conditionsin the tissues surrounding them than from decay of the teeththemselves; and, if this be true, it is very important that dentistsshould pay especial attention to the agencies calculated to bringabout such conditions. It is undeniably a fact that calculus in amouth subject to its continual formation will, if allowed toaccumulate, sooner or later work the destruction of the teeth. Fig. 3. Fig. 1. Fig. 2. Figs. 1, 2, and 3 illustrate some extreme cases of calculusformation about the teeth. Figs. 1 and 2 show the mesial anddistal aspects of two lower incisors with calculus attached, actualsize. Fig. 3 is a mass of calculus detached from the buccal sur-face of an upper molar. The patient applied to her dentist forexamination relative to some growth which she said was formingin her mouth, and the result was the removal of this piece ofcalculus; here reproduced in two views, actual size. It must beapparent that in the specimens shown the teeth need not neces-sarily have been lost if early attention had been given to thesedeposits. There was not the slightest indication of caries uponany of them, and it is safe to conclude that had the patients sought DEPOSITS ON THE TEETH. 11 and obtained proper dental service in the initial stages of theaffection the teeth might have been preserved for many years ofusefulness. It is true that in these particular
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