Journal of Oral Science Research ›› 2026, Vol. 42 ›› Issue (5): 446-449.DOI: 10.13701/j.cnki.kqyxyj.2026.05.015

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Complex Crown-root Fracture Treated with Modified Crown Lengthening: A Case Report

LIU Yanqing, XU Qiang*   

  1. Department of Stomatology, Chongqing Hospital of The First Affiliated Hospital of Guangzhou University of Chinese Medicine (Chongqing Beibei Traditional Chinese Medical Hospital), Chongqing 400700, China.
  • Received:2025-06-25 Published:2026-05-25

Abstract: Crown root fracture is often accompanied by damage to the tooth body, pulp, and periodontal tissue, presenting complex clinical symptoms and posing significant challenges for treatment and restoration. In most cases, the affected tooth needs to be extracted. This article reports a case of complex crown-root fracture of lateral incisor. The function and aesthetics were well restored, following modified crown lengthening surgery and providing clinical experience for the diagnosis and treatment of patients with complex crown root fracture.

Key words: crown-root fracture, modified crown lengthening surgery