Where  ligatures  are  required,  the
vulcanite  plate  affords  an  easy  means
of  attaching  them  in  any  desired  posi-
tion ;  passing  them  through  holes  and
tying;  looping  them  over  projecting
knobs  of  vulcanite,  or  over  small  metal
hooks  set  in  the  plate ;  or  stretching  them  through  slits  sawn  in  the
plate.
If  a  band  is  to  be  carried  for  any  purpose  in  front  of  the  arch,  it
may  be  connected  with  the  plate  on  the  inside  of  the  arch,  through,
any  spaces  occurring  between  the  bicuspids  or  molars  ;  if  there  are  no
such  spaces,  or  if  they  are  to  be  closed  up  in  the  process  of  regulation,
the  cap  which  is  often  required  to  pass  over  the  molars  will  connect
the  two.  But  the  outside  band  is  not  often  necessary.  The  inside
I^late  is  less  awkward  to  the  patient;  it  is  out  of  sight;  and  almost,  if
not  quite,  every  required  movement  can  be  obtained  from  it,  even  to
the  exclusion  of  the  inclined  plane  of  Catalan.
