Monthly Archives: November 2010

Divisions of Available Bone for Dental Implants

There are four divisions of available bone based on width, height, length, angulation and crown height in the edentulous site.

1. Division A edentulous ridge offer abundant bone in all dimensions.
2. Division B bone may provide adequate width for narrower, small diameter root form endosteal implants.
3. Division C edentulous ridge exhibits moderate resorption and presents more limiting factors for predictable endosteal implants.
4. Division D edentulous ridge basal bone loss and severe atrophy, resulting in dehiscent mandibular canals or a completely flat maxilla.

Misch CE: Dental Implant Prosthetics, Mosby Inc 2005