ANIMAL DENTISTRY. 



165 



Repulsion of the Tooth:— The right hand is placed in the 

 mouth with a finger pressing firmly against the tooth while 

 the left hand directs the punch. The assistant is then di- 

 rected to strike firmly with the mallet until the impression 

 of the blow is felt by the finger against the tooth, and then 

 forcibly until it is driven from its cavity. Failure to trans- 

 mit an impression into the mouth is an indication that the 

 punch is not advantageously located. 



Fig. ii6. 



Cut Representing the Proper and the Improper Methods of Placing the 



Punch to a Tooth to Be Repulsed. 



A. Proper method; punch on a straight line with tooth. 



B. Improper method. 



Aftercare: — As soon as the tooth is removed the patient 

 is made to resume the standing position. The frontal sinus, 

 maxillary sinus and nasal fossa are then freely opened into 

 each other by breaking down the fragile septa separating 

 them. The cavities are then emptied, irrigated, and wadded 

 with antiseptic cotton. Daily irrigation with 3 per cent zinc 



