DERANGEMEJTTS OF THE TEETH. 305 



can be discovered. Instances liave occurred, and tlie facts are 

 recorded, where Caries has extended to the fangs of a molar 

 tooth of a top jaw, and ulcerated through its socket into the 

 nasal chambers above ; and matter being discharged out of the 

 nose has given rise to the opinion of the animal so affected 

 being glandered, and afterwards being destroyed in consequence. 



The common symptoms of Tooth Ache are — the animal 

 refuses its food, attended with fetor of the mouth ; dribbling of 

 saliva from the lips ; and swelling of the cheek. 



A carious tooth will generally be hollow, and its cavity 

 filled with half-masticated food, the fetor from which will be 

 very offensive. The glands of the sub-maxillary space will also 

 be enlarged, but rarely or ever adherent to the jaAv, unless as a 

 consequence of maltreatment. Fetor from the mouth is not at 

 all times indicative of a carious tooth. Sometimes it arises from 

 the corners of the molar teeth being sharp, and lacerating the 

 inner surface of the cheek, and the sores thus produced sup- 

 purating ; and sometimes it arises from the molar teeth having 

 spaces between them, in which half-masticated hay will collect 

 and so remain, until by its presence the gums become inflamed 

 and purulent matter is exuded. Little or no difficulty need be 

 experienced in detecting a carious tooth ; its hollowness, and 

 the fetor of its contents, together with the pain which the 

 animal experiences if a finger of the examiner be forced into its 

 cavity, are all unquestionable proofs of its existence. 



Teeatment. — The treatment of a carious tooth is a matter 

 readily determined upon : it should be extracted ; and in order 

 to do so the patient will need to be cast and turned upon his 

 back, and there retained, by means of large bundles of straw, 

 as long as may be necessary. The operator is then to forcibly 

 open the mouth by means of a ball iron, and while an assistant 



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