OPERATIONS ON THE TEETH. 



357 



Fig. 359.— Bourrel's Mode of Filing Dog's Teeth. 



flow of saliva, of a characteristic and putrid smell ; mastication 

 becomes impossible, and the animal becomes a regular martyr to 

 the lack of attention of his dental apparatus. The formation of 

 these concretions can be prevented in animals in the same way and 

 with the same care that is exercised in respect to the human when 

 teeth- washing, brushing, etc., with some of the properly com- 

 pounded tooth powders, will remove a slight coat of the offensive 

 deposit, but if the accumulation is quite large, it must be scraped 

 off with proper instiniments (Fig. 360), carefully avoiding, if prac- 

 ticable, any injury to the gums, or the loosening of the teeth. 



Fig. 360.— Tooth Scrapers. 



