Management of ectopic eruption of bilateral mandibular first permanent molars: a case report and literature review Authors Dandan Zhang Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China Qiongling Shi Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China Linxian Fang Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China Wenxiang Jiang Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China Jie Han Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China Zhifang Wu Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China DOI: https://doi.org/10.47391/JPMA.6989 Keywords: Ectopic eruption, Mandibular first permanent molar, Modified lingual arch Abstract Ectopic eruption of the first permanent molars is a local eruption disturbance. The frequency of ectopically erupted first permanent molars is predominant in boys and primarily affects the maxilla. Interceptive treatment for irreversible ectopic eruptions should be initiated early to prevent space loss and the impaction of the second premolars. Herein, we report the case of a six-year-old girl with irreversible ectopic eruption of the bilateral mandibular first permanent molars treated with a modified lingual arch. The mandibular first permanent molars were successfully distalised after six months of treatment, and one year of follow-up showed a satisfactory outcome. The modified lingual arch satisfies not only the clinical aspects of treatment but also the patient’s well-being. However, the lingual arch may disturb tooth eruption in the mixed-dentition stage. Key words: Ectopic eruption; Mandibular first permanent molar; Modified lingual arch. Downloads Full Text Article Published 2023-08-15 How to Cite Zhang, D., Shi, Q., Fang, L., Jiang, W., Han, J., & Wu, Z. (2023). Management of ectopic eruption of bilateral mandibular first permanent molars: a case report and literature review. Journal of the Pakistan Medical Association, 73(9), 1897–1899. https://doi.org/10.47391/JPMA.6989 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 73 No. 9 (2023): SEPTEMBER Section CASE REPORT License Copyright (c) 2023 Journal of the Pakistan Medical Association This work is licensed under a Creative Commons Attribution 4.0 International License.