save  time,  by  limiting  the  use  of  the  wax-knife  and  brushes,  and
give  a  more  uniform  plate.  In
proportion  as  this  part  of  the
operation  is  n(>atly  and  skilfully
executed,  will  the  labor  of  finish-
ing, al'ter  the  metal  has  been
poured,  be  lessened.  An  upper
set  of  single  gum  teeth,  thus
arranged  on  a  wax  or  gutta-
percha plate  upon  the  model,  is
represented  in  Fig.  302.  If  there
is  any  doubt  as  to  the  proper
adjustment  of  tlie  teeth,  the  piece
may  now  be  tried  in  the  mouth ;
any  necessary  alteration  must  be
made  before  proceeding  farther
with  the  work.
When   single   teeth    without

Fig.  303.
650


CHEOPLASTIC    PROCESS.
