Which of the following implant design is suitable for Division–C bone
Subperiosteal bone
Disk design implants
Ramus frame implant
All of the above
Seven implant treatment options are available for Division C bone: 

Osteoplasty (C-w bone) before implant insertion 
Root-form implants 
Subperiosteal implants (C-h and C-a bone in mandible) 
Augmentation procedures 
Disk design implants (posterior mandible or anterior maxilla) 
Ramus frame implants (C-h bone, completely edentulous mandible) 
Transosteal implants (C-h bone anterior).