Type II bone is located in which region?

Type II bone is located in which region?

• A. Posterior mandible
• B. Anterior maxilla
• C. Posterior maxilla
• D. Anterior mandible

Answer: (C)

Type II bone describes a pattern where the cortical bone layer is relatively thick and the underlying cancellous (trabecular) bone is still dense. This combination provides good initial implant stability because the strong cortical shell offers mechanical support while the dense cancellous bed beneath supports healing and osseointegration. The posterior maxilla commonly shows this mix, with a solid cortical plate over a well-vascularized cancellous core, so it fits Type II best. Regions with either very dense bone with little cancellous or very porous, thin cortex tend to align with different classifications, making them less consistent with Type II.

Type II bone describes a pattern where the cortical bone layer is relatively thick and the underlying cancellous (trabecular) bone is still dense. This combination provides good initial implant stability because the strong cortical shell offers mechanical support while the dense cancellous bed beneath supports healing and osseointegration. The posterior maxilla commonly shows this mix, with a solid cortical plate over a well-vascularized cancellous core, so it fits Type II best. Regions with either very dense bone with little cancellous or very porous, thin cortex tend to align with different classifications, making them less consistent with Type II.