Flexible sheets
are bone sheets made flexible through a proprietary demineralisation process.
  
Flexibility means easy adaptation to curve profiles
with no need for shaping with rotating instruments.
  
Spongy sheets remodel in 4-6 months
and are therefore recommended for two-step implant placements, where second surgery time must be predictable.
 
Cortical sheets remodel in more than 12 months.
The proper use is for one-step implant placement.
  
Both grafts need proper, stable fixation.
Proper flap management is mandatory.