Prognosis of luxation injury with associated crown fracture in permanent teeth: A systematic review

Objectives: To evaluate the prognosis of luxation injuries associated with crown fractures in permanent anterior teeth, focusing on pulp necrosis and resorptive complications. Methods: A PROSPERO-registered systematic review was conducted following comprehensive database searches. Observational studies were included and assessed using Joanna Briggs Institute critical appraisal tools. Qualitative synthesis was performed. Results: Nine studies were included. Luxation injuries with crown fractures showed higher pulp necrosis incidence (28%) compared to those without fractures (22%). Mature apex teeth demonstrated greater pulp necrosis rates than immature teeth. Resorptive complications showed no statistically significant differences. Conclusions: Concomitant crown fracture increases the risk of pulp necrosis following luxation injury. Early diagnosis and careful monitoring are critical to improve long-term prognosis.