Stomatology ›› 2026, Vol. 46 ›› Issue (3): 206-209.doi: 10.13591/j.cnki.kqyx.2026.03.008

• Case Analysis • Previous Articles     Next Articles

Microscopic root canal therapy combined with intentional replantation for the treatment of palatogingival groove in the maxillary lateral incisor with two root canals: A case report

CHEN Wanjing1,2,3, LI Chengxi4, WEI Xin1,2,3(), MA Ming1,2,3()   

  1. Department of Conservative Dentistry and Endodontics, The Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
  • Received:2025-09-19 Online:2026-03-28 Published:2026-03-31

Abstract:

Palatogingival groove (PGG) is a developmental anatomical defect located on the lingual root surface, frequently observed in maxillary lateral incisors. The periodontal attachment in this region is delicate, which makes it vulnerable to plaque accumulation and increases the risk of periodontal inflammation, leading to combined periodontal-endodontic lesions. This article reports a case of a combined periodontal-endodontic lesion in a left maxillary lateral incisor caused by PGG. The tooth was successfully preserved through microscopic root canal therapy combined with intentional replantation. Additionally, a literature review was performed to highlight the key diagnostic features and treatment strategies for PGG.

Key words: intentional replantation, palatogingival groove, double root canals, maxillary lateral incisor

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