CHAPTER I. 



ANATOMY OF THE SUPERIOR MAXILLA, THE 



PRE-MAXILLA AND INFERIOR MAXILLA. 



SINUSES OF THE HEAD. 



In no branch of Veterinary Science is it more 

 important to possess an accurate knowledge of the 

 conditions which are present in a state of health as 

 well as disease, than in the care and treatment of the 

 teeth. It is only by a thorough knowledge of the 

 appearance of an organ during health, that the prac- 

 titioner is able to recognize a diseased condition. 

 And in order that he may remedy that defect and 

 restore the structure to a healthy state, it is necessary 

 that he should thoroughly understand the nature and 

 extent of the disease. 



ANATOMY. 



In discussing the anatomical relations of the bones 

 of the face and head of the horse only those will be 

 mentioned which are directly involved in diseases of 

 the teeth. These are the superior maxilla, the pre- 

 maxilla and the inferior maxillary bones. 



The superior maxilla (Fig. 1-4) is situated at the 

 side of the face, irregular in form somewhat triangu- 

 lar, and elongated from before backwards. It affords 



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