Horizontal root fracture with displacement in the primary dentition.

Root fractures in the primary dentition are uncommon and little information is available concerning adequate treatment and prognosis. The most recently published guidelines recommend more invasive approaches but also discuss the need for further studies. This article examines how a horizontal root fracture in the primary dentition of a 3-year-old girl was treated by reducing the coronal fragment, followed by semi-rigid containment for 21 days.