National Dental Assisting Examining Board (NDAEB) Practice Exam

What does Luxation involve in dental terms?

1. Fracture of a tooth

2. Displacement or dislodging of a tooth

3. Separation of the periodontal ligament

4. Exploration of the tooth enamel

The correct answer is: Displacement or dislodging of a tooth

Luxation in dental terms refers specifically to the displacement or dislodging of a tooth from its natural position within the dental arch. This condition typically occurs due to trauma, such as a blow to the face, and may involve partial or complete movement of the tooth from its socket in the alveolar bone. When a tooth undergoes luxation, it may not only move but also potentially damage surrounding tissues, including the periodontal ligament and bone structure. Understanding this condition is crucial in dental practice, as it helps practitioners effectively manage and treat injuries resulting from dental trauma, ensuring proper stabilization and recovery of the affected tooth. In contrast, a fracture of a tooth involves a break in the tooth structure itself, which is a different concern than the displacement that defines luxation. The separation of the periodontal ligament is also related to dental trauma but is more focused on the connective tissue rather than the position of the tooth. Lastly, exploration of the tooth enamel does not correlate with luxation, as this involves examining the surface of the tooth rather than its position or displacement.