VETERINART DENTAL SURGERT. 53 



The permanent teeth are cut in pairs, two in 

 either jaw, the upper teeth preceding the lower by 

 some weeks, with the exception of the canine teeth, 

 which first show below. It is the cutting of the per- 

 manent teeth that inconveniences the animal, and 

 often symptoms are noticed in the horse similar to 

 those which occur in children during their first or 

 temporary dentition. 



FIG. 15. 



i' 2' 3', Incisors; i," Canine; i, 2, 3, 4, 5, 6, Molars, , Posi- 

 tion for trephining for 5 lower molar teeth. 



The respective pairs of incisor teeth are usually 

 cut at intervals at from ten to fourteen months ; that 

 is, the lateral incisors are cut ten to fourteen months 

 later than the central, and the corner, ten to fourteen 

 months later than the lateral. The same rule is not 

 applicable to the molars, for they are all cut (twen- 

 ty-four), during the same period the incisor teeth 

 (twelve), are cut. 



