Management of a Rare 4-Rooted Maxillary First Molar With 5 Canals and an Endo-Periodontal Lesion: A Case Report

02 September 2026 : Case report China

Unusual or unexpected effect of treatment

Yifan Wang^{ACDEF 1}, Hong Jiang^{ABF 2}, Yanhong Hao^{AB 2}, Zhen Fang^{BC 3}, Shige Liu^{B 2}, Jie Pan^{ACD 4}, Huan Jing^{ABCDG 2*}

DOI: 10.12659/AJCR.953554

Am J Case Rep 2026; 27:e953554

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Figure 5 The working length verification radiograph of tooth 16.

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