132 ON THE CHEOPLASTIC METHOD 



The teetli used for it and best adapted, althongli 

 all teetli can be well mounted by it, are so formed 

 by means of grooves, dovetails, and holes, that the 

 metal runs into and about them in such a manner 

 as to render their removal impossible, except by 

 remelting or breaking; permitting teeth to be 

 remounted any number of times, care being used 

 in regulating the comparative equality of heat of 

 the teeth and metal, when pouring the metal into 

 them. 



It is least expensive, as costing about one 

 eighth of gold, the same character of teeth rating 

 at the same value as for old processes ; the metal 

 costing but 5s. per ounce, and being capable of 

 remelting any number of times, not necessarily 

 attended by any material loss. The time required 

 in mounting depends greatly upon the facility of 

 the practitioner, but can be safely stated as not 

 employing one eighth of the time used in gold, 

 five to eight hours being sufl&cient to mount any 

 ordinary set of teeth; as sets have been made 

 in much less time, as well as much longer, de- 

 pending upon peculiar difficulties in the grinding, 

 as well as the perfection of finish. Suffice it, that 

 this statement of time is a liberal one, as all 

 partial pieces require much less time pro- 

 portionally than full, which is not so in other 

 methods. 



The piece when completed represents a solid 

 mass, free from all apertures or open joints, and 



