THE ANGULAR OR SHARP MOUTH. 



277 



inside of the cheeks may be wounded. The further limitation thus 

 placed on movements of the jaw aggravates the production of sharp 



Fig. 275.— Tooth 

 rasp w i t h 



9 



Figs. 27<i. 277. 

 |Tooth chisels. 



edges, and the mischief increases. It is easy to operate on the sharp 

 edges and points of the teeth, but this does not remove the cause, 

 and the malady is liable to recur. The sharp edges of the lower 



