Australian Dental Council (ADC) Practice Test 2026 - Free ADC Practice Questions and Study Guide

Question: 1 / 1390

A periapical x-ray of the 11 and 12 region reveals the vimen and the floor of the nasal fossa. What feature is also visible?

Maxillary sinus

B. Incisive foramen

In a periapical x-ray focused on the region of teeth 11 (upper right central incisor) and 12 (upper right lateral incisor), the incisive foramen is indeed a prominent anatomical feature that can be observed. The incisive foramen is located at the midline of the anterior maxilla, posterior to the maxillary incisors. It serves as an important landmark and is often visible in radiographs taken of this area.

The presence of the incisive foramen in the x-ray allows for a better understanding of the anatomy of the anterior maxilla and its relation to adjacent structures such as the nasal fossa. Typically, the maxillary sinus is located more posterior in the dental arch and may not be distinctly visible in a focused periapical view of the anterior teeth, making the incisive foramen a more relevant observation in this specific image.

This understanding of the anatomy aids in clinical evaluations and surgical planning, ensuring that dental professionals can avoid complications related to the foramen during procedures such as extractions or placing implants in the anterior maxilla.

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Zygomatic process

Wall of maxillary sinus

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