Type I bone is located in which region?

Type I bone is located in which region?

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

Answer: (A)

Type I bone means dense, homogeneous cortical bone. This density is most characteristic of the anterior mandible, where the bone is the thickest and most compact. That dense cortical structure provides excellent primary stability for implants, which is why the anterior mandible is the region most commonly associated with Type I bone. In contrast, maxillary bone and other jaw regions tend to have less dense bone (more trabecular), aligning with Type II–IV bone patterns. So the best fit for Type I bone is the anterior mandible.

Type I bone means dense, homogeneous cortical bone. This density is most characteristic of the anterior mandible, where the bone is the thickest and most compact. That dense cortical structure provides excellent primary stability for implants, which is why the anterior mandible is the region most commonly associated with Type I bone. In contrast, maxillary bone and other jaw regions tend to have less dense bone (more trabecular), aligning with Type II–IV bone patterns. So the best fit for Type I bone is the anterior mandible.