An 8-year-old fell off a bicycle. Tooth 1.1 is tender to tapping and has increased mobility, and there is bleeding from the gingival sulcus. The tooth is not displaced, and the periapical radiograph looks normal. What is the most likely diagnosis?

This question is one of 15 in AFK practice: Oral surgery, trauma and orofacial pain. Test yourself on all of them.

Explanations

Subluxation is an injury to the supporting tissues with abnormal loosening but no displacement, often with sulcular bleeding. A concussion is also tender to percussion, but mobility is normal.

Source: IADT Guidelines for the Management of Traumatic Dental Injuries: 1. Fractures and Luxations (2020) link — oneguy