INBDE (Integrated National Board Dental Examination) Practice Exam

What is considered type 3 bone?

1. Anterior mandible

2. Posterior mandible

3. Anterior maxilla

4. Posterior maxilla

The correct answer is: Anterior maxilla

Type 3 bone is considered to be the most challenging bone quality for dental implant treatment. This type of bone is typically found in the anterior maxilla. It is characterized by having a thin cortical layer surrounding a dense trabecular bone. Due to its lower density and poorer quality compared to other bone types, such as type 1 and type 2, special care and techniques are often needed when placing dental implants in type 3 bone to ensure successful osseointegration and long-term stability. The other options (A. Anterior mandible, B. Posterior mandible, D. Posterior maxilla) do not represent type 3 bone. The anterior mandible is typically considered type 1 bone, which is dense and offers good stability for implants. The posterior mandible is often type 2 bone, with a thicker cortical layer and good bone density. The posterior maxilla can vary but is generally considered type 2 bone, similar to the posterior mandible.