-99 — 



The position of how the hand can be placed in the 

 mouth to guide the instruments is taken up under 

 the following headings : 



How to Float the Right Upper Molars. 



Place the left hand into the interdental 

 space on the right side of the mouth, in front of 

 the first molar. The palm of the left hand must 

 be turned upward, so that the outer surface of 

 the fingers can be used to guide the float while 

 you are filing the edges of the molars with the 

 float in the right hand. While floating the mol- 

 ars, keep the file flat against the outside edges of 

 the teeth, and not upon the teeth surface. 



Floating the Left Upper Molars. 



The left hand is passed through the mouth, 

 from the right side to the left, into the inter- 

 dental space, with the palm of the hand turned 

 up. The thumb is placed in front of the left up- 

 per molar and also against the upper jaw, which 

 is called the left upper branch of the premaxilla. 

 Placing your thumb in that position, it puts you 

 on your guard to keep your hand from slipping 

 between the animal's teeth if the animal should 

 happen to slightly turn its head. The file is 

 worked alongside of the left molars with the 

 right hand, and guided with the fingers of the 

 left. 



Floating the Right Lower Molars. 



In floating the right lower jaw teeth, place 

 your right hand in the mouth the same as you did 

 heretofore, and the float should be worked with 

 the left hand. You will find that it will be some- 

 what awkward, for you to work the float with 



