VETERINARY DENTAL SURGERY. 161 



with the cutters if judiciously handled, and 

 not allowed to grasp too much of the tooth. 



The plates of the tooth rasp if separate 

 can be removed and new ones substituted at 

 ! any time when the old ones become worn 

 out. Fig. 42 represents one of these rasps. 

 For convenience in carrying, the handles 

 may be made with a joint so that they can 

 be separated. 



If it is not deemed advisable to use the 

 cutter, a rasp which is punched will cut 

 away the tooth much faster than a cut rasp, 

 but its use should be followed by a smooth 

 rasp. 



SPECIAL OPERATIONS. 



Horses which are put to different uses re- 

 quire operations on their teeth that will fit 

 them for the work which they are required to 

 perform. We should aim to put the teeth in 

 such a condition that they will not lacerate the 

 tongue and cheeks. In trotting and running 

 horses which often get excited, or that have 

 the bit frequently shifted, there is a tendency 



to cut the cheek opposite the first upper or 

 FIG. 41. 



HOUSE'S lower molar. This is very often prolonged 

 BLE RASP.* sucn an extent that the animal becomes un- 

 manageable and utterly useless for the work he was 

 intended to perform. If such a condition is present in 



