SECTION III. 
AFFECTIONS OF THE MOUTH AND TONGUE. 
CHAPTER I. 
DENTITION. 
In puppies the eruption of the teeth is not attended by any of those disturbing 
symptoms so often noted in children. Commencing soon after birth, it goes on 
rapidly, and generally by the end of the first month the temporary or milk-teeth 
are through. These are twenty-eight in number, and consist of twelve incisors, 
four canines, and twelve molars, evenly divided between the jaws. 
Like the first teeth of children, they are much less dense and durable than 
those which come later; moreover, they are smaller and sharper, and set wider 
apart. 
The shedding of these teeth commences about the fourth month, and they 
may all be replaced by the permanent set in the course of a month or six weeks; 
but generally this final dentition ends in the sixth month, although in some 
instances it is not completed before the eighth month. 
The permanent teeth are forty-two in number; and in the upper jaw there 
are six incisors, two canines, and twelve molars ; while in the lower jaw there is 
the same number of each kind, excepting the molars, of which there are two 
more, or fourteen. But the number of permanent teeth may exceed forty-two ; 
indeed, as many as eight supernumeraries have appeared irregularly in the jaws; 
but this is far from common, and seldom are more than one or two such found. 
AFFECTIONS OF THE TEETH. 
That the teeth are but a part of the one great system, and, like all organs 
and functions, to some extent at least, they share in the general health and in- 
firmities, is a fact which many people fail to appreciate until pain has forced it 
upon them. Strangely, ere that they evidently consider these highly important 
parts as separable, and incapable of injury excepting when it is inflicted directly 
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