216 MECHANICAL APPLIANCES 



backs of the teeth with small incline strips of 

 gold resting on the edges of the misplaced teeth, 

 and holes in the bars for ligatures or elastic bands 

 operating on the other teeth at the same time. 



A modification of these plans I made use of 

 some few years since, in a case where the under- 

 teeth projected before the upper: in this I 

 capped with gold the back teeth of the under 

 jaw, uniting the caps on both sides of the 

 mouth by a narrow, stout, gold band, passing 

 in front and resting against the anterior teeth, 

 to the buccal sides of the caps ; to the side of 

 the cap from about the second bicuspid to 

 the first half of thQ first molar, was soldered a 

 stout piece of gold plate, projecting upwards about 

 half an inch, cut at about an angle of sixty degrees, 

 sloping upwards from the bicuspid to a parallel 

 line from the middle of the molar. The upper 

 plate was made capping the back teeth, and cover- 

 ing a portion of the lingual surfaces of the anterior 

 teeth. A small thick piece of gold was soldered 

 to the buccal sides of the caps, into which was 

 screwed a strong gold pin, which, on any effort to 

 close the mouth, rubbed against the inclined edge 

 of the under piece, forcing the under jaw back. 

 As the caps came into contact, the points were 

 filed away, until the teeth themselves nearly met. 

 In the course of about three weeks, the under 

 teeth were, on closing the mouth when the 

 apparatus was out, fully one eighth of an inch 



