DISEASES OF THE TEETH. 



OPERATIONS ON THE TEETH. The oldest on record is 

 * chewing the rasp' a practice of the old farriers, who, in 

 order to remove the sharp edges on the molar teeth of horses, 



on the tooth, it being split into two pieces and a portion bulging out- 

 wards ; I therefore knocked one half of it out. 



" Jan. 3rd, 1837. No discharge from the nostril this morning, but 

 during the week it has been much the same as before. Knocked out 

 the other half of the broken tooth. 



" 30th. The discharge has returned and become offensive. 



"Feb. 1th. Animal destroyed as glandered, by order of a special 

 committee. 



" Appearance of the head after dea'h. The last molar tooth but one 

 on each side of the superior maxilla affected with caries. That on the 

 near side I had partly extracted ; the off side one was split parallel 

 with the jaw, and bulged out as that on the near side when I knocked 

 off the broken pieces. A communication existed between the mouth 

 and cavities of the head, through the diseased action set up, and a 

 quantity of food was in one of the cavities. Immediately over the 

 fang of the near tooth was a polypus about the size of a small hen's 

 egg, extending into the nostril. The mucous membranes throughout 

 the head were very much discoloured and injected, but more particu- 

 larly that covering the septum. There is no doubt but that the diseased 

 tooth was the cause of the discharge from the nostrils, and also led to 

 the formation of the polypus. The lungs were not much diseased. 

 " A SIMILAR CASE. 



" The horse arrived at Leypore, 4th December, 1835, 



" Symptoms. Discharge copious and offensive from the right nostril ; 

 the left nostril also discharges, but not near sc much ; the glands are 

 swollen, and those on the right side very considerably. A committee 

 assembled in the evening and condemned the animal to be shot : in 

 their opinion it was a case of glanders. 



" Post-mortem appearance of the head. The Schneiderian membrane 

 lining the septum on both sides was highly injected, and of a pale blue 

 colour ; the right maxillary sinus was full of fetid pus, and a mass of 

 apparently ossific matter existed there, which was connected with a 

 diseased or carious tooth " 



Cases like the above are of frequent occurrence 



