VETERINARY DENTAL SURGERT. 



183 



walls of the alveolus, which are gradually broken 

 down. By this means an opening is ultimately made 

 through the socket, as Fig. 44', when the pus coming 



FIG. 44'. 



External surface of lower jaw of a hog showing open- 

 ing formed by an abscess. 



FIG. 44. 

 Table surface of same teeth. 



in contact with the soft structures presses upon them 

 and causes their absorption, furnishing an outlet for 

 the imprisoned pus, if in the lower jaw usually 

 externally and inferiorly, if in the upper jaw into 

 the sinus opposite the tooth which is affected. 



The opening is usually opposite the tooth. In 

 fact all cases that have thus far come under my 

 observation were so situated; but we can readily 

 understand that the pus may escape from some other 

 and more remote point; indeed such is the frequent 



