ANIMAL DENTISTRY. 



167 



4. Septicaemia is the result of improper method of op- 

 erating, the use of septic irrigation fluids, or neglect to irri- 

 gate properly. 



5. Deglutition pneumonia results from the flow of blood, 

 antiseptic fluid or pus into the lower air passages during the 

 operation. It is caused either from anaesthesia or the use 



Fig. 117. 



Molar Denture of a Young Horse, in Which Extraction is Difficult, Owing 



to the Deep Implantation. 



of the speculum, which prevents deglutition of fluids which 

 fall into the pharynx. 



(3) REMOVAL OF THE EXTERNAL ALVEOLAR PLATE. 



(Williams' Operation). 



Equipment: — Bone chisel, narrow-blade saw, scalpel, 

 dissecting forceps, artery forceps, mouth speculum, anti- 

 septics, and mouth gag. 



