Excerpt from The Dental Advertiser, Vol. 11: January, 1880
The cementum resembles the dentine in being a living tissue, but it receives its vitality through the pericementum. It is true that a few of the smaller branches of the fibrils of the dentine enter the cementum, but it must live independent of the pulp of the tooth, as we often find living cementum in contact with dentine which has long been dead.
Nutrition and absorption usually go hand in hand, and in this respect the teeth form no exception to the rule. It is a well established fact that in pregnancy or in long continued emaciation, the teeth suffer with the rest of the system. Absorption is a living process, and although the cell which nature desires to rid herself of may possibly be dead, the avenue through which this cell is removed must be alive. If we extract the teeth, nature sets up a process by which the alveolar process is absorbed, but if in the operation a piece is so injured that it dies, it will not be absorbed, but must be removed, either by chemical or mechanical means.
In considering the deciduous teeth, we should remember that they differ from the permanent teeth chieﬂy in being more vascular. If, then, the deciduous teeth are composed of living vascular tissues, is it not reason able to assume that the absorption of their roots resembles the absorption of other vital tissues?
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