120 



VETERINARY DENTAL SURGERT. 



28 represent shells which have become separated 

 from the tooth. They are very thin and only made 

 up of cement and dentine. The symptoms presented 

 in the two cases were similar ; there 

 was great emaciation, bulging of the 

 cheek, quidding of the food, fetid 

 odor emanating from the mouth; 

 great difficulty was experienced in 

 masticating the food. On examin- 

 ing the mouth large quantities of 

 partially masticated food were found 

 FIG 27 lodged between the two portions of 



Portion of ex- the tooth. This had become sour 



and had very disagreeable odor. 



become separated After its rem oval the separated por- 

 from a molar 



tooth, 



section. 



view. 



, cross tion of the tooth could be easily felt 

 , lateral 



and was removed with the forceps. 



Fractures of the teeth may be produced in various 

 ways. External injury such as a 

 blow or a kick, biting gravel, small 

 stones, sticks, nails, bolts, burrs, 

 pieces of iron, &c. Fractures of the 

 molars also frequently take place 

 after the incisors have been dressed FIG 2 g 

 down, especially if enough has been removed to keep 

 them from coming together. Longitudinal fractures 

 of perfectly sound teeth are sometimes seen in voung 

 horses, the cause of which is rather imperfectly 

 understood. I have on several occasions been called 



