An unusual impaction of the permanent mandibular first molar – Report of a rare entity 

References

1. Ishiyama M, Namaki S, Tamura H, Hase K, Kikuiri T. Impaction of mandibular first molar by tooth-like hard tissue. Cureus. 2024;16(4):e59304. https://doi.org/10.7759/cureus.59304
   [Google Scholar]
2. TenCate AR. Oral Histology: Development, structure and function. 4th ed. Toronto: CV Mosby; 1989.
3. Sonpal PM, Mundada BP, Bhola ND, Kamble R, Mathew J. Impacted mandibular first molar: a rare riddle. Cureus. 2022;14(11):e31680. https://doi.org/10.7759/cureus.31680
   [Google Scholar]
4. Joshi M, Kasat V. Variations in impacted mandibular permanent molars: report of three rare cases. Contemp Clin Dent. 2011;2(2):124–6. https://doi.org/10.4103/0976-237X.83079
   [Google Scholar]
5. Fu PS, Wang JC, Chen CH, Huang TK, Tseng CH, Hung CC. Management of unilaterally deep impacted first, second, and third mandibular molars. Angle Orthod. 2012;82(3):565–71. https://doi.org/10.2319/062411-409.1
   [Google Scholar]
6. Lee DY, Song JS, Lee JH, Choi BJ, Kim SO. Eruption guidance of impacted mandibular first molar. J Korean Acad Pediatr Dent. 2010;37:226–32.
7. Nagaveni NB, Ashwini KS. Impaction of primary molars in Indian children – a retrospective radiographic study and upgraded new classification system. Clin Radiol Ima J. 2024;8(1):000217. https://doi.org/10.23880/crij-16000217
   [Google Scholar]
8. Kwon SO, Lee S, Lee N. Treatment of combined primary impaction of primary second molars and permanent first molars. Pediatr Dent. 2016;38(7):143–7.
9. Morita Y, Koga Y, Nguyen TA, Yoshida N. Biomechanical considerations for uprighting impacted mandibular molars. Korean J Orthod. 2020;50(4):268–77. https://doi.org/10.4041/kjod.2020.50.4.268
   [Google Scholar]
10. Tsironi K, Inglezos E, Vardas E, Mitsea A. Uprighting an impacted permanent mandibular first molar associated with a dentigerous cyst 250 Nagaveni NB et al. / International Journal of Oral Health Dentistry 2025;11(3):246–250 and a missing second mandibular molar-a case report. Dent J (Basel). 2019;7(3):63. https://doi.org/10.3390/dj7030063
    [Google Scholar]
11. Tamer İ, Öztaş E, Marşan G. Up-to-date approach in the treatment of impacted mandibular molars: a literature review. Turk J Orthod. 2020;33(3):183–91. https://doi.org/10.5152/TurkJOrthod.2020.19059
    [Google Scholar]
12. Machado AW, McComb R, Wu K, Moon W. Early mixed dentition treatment of bilateral impaction of permanent mandibular first molars. Pediatr Dent. 2013;35(5):E134–6.
13. Paleczny G. Treatment of the ankylosed mandibular permanent first molar: a case study. J Can Dent Assoc. 1991;57(9):717–9.
14. Sun CX, Li ZH, Zhou ZQ. Distal horizontal impaction of right mandibular first molar: a case report. Hua Xi Kou Qiang Yi Xue Za Zhi. 2019;37(1):106–8.
15. Moca RT, Moca AE, Juncar RI, Vaida LL, Janosy AM, Juncar M. Prevalence and patterns of positional dental anomalies in first permanent molars: insights from a study in Oradea, Romania. Diagnostics (Basel). 2024;14(13):1460. https://doi.org/10.3390/diagnostics14131460
    [Google Scholar]
16. Patel PS, Shah JS, Dudhia BB, Butala PB, Jani YV, Macwan RS. Comparison of panoramic radiograph and cone beam computed tomography findings for impacted mandibular third molar root and inferior alveolar nerve canal relation. Indian J Dent Res. 2020;31(1):91–102. https://doi.org/10.4103/ijdr.IJDR_540_18
    [Google Scholar]
17. Safi Y, Moshfeghi M, Ahsaie MG, Zameni M, Sahafi SA. Relationship between impacted mandibular third molars and the mandibular canal on CBCT scans. J Long Term Eff Med Implants. 2024;34(3):65–74. https://doi.org/10.1615/JLongTermEffMedImplants.2022042569
    [Google Scholar]
18. Hung KF, Yeung AWK, Wong MCM, Bornstein MM, Leung YY. Comparing standard- and low-dose CBCT in diagnosis and treatment decisions for impacted mandibular third molars: a non- inferiority randomised clinical study. Clin Oral Investig. 2024;28(12):647. https://doi.org/10.1007/s00784-024-06022-5
    [Google Scholar]
19. Dias MJ, Franco A, Junqueira JL, Fayad FT, Pereira PH, Oenning AC. Marginal bone loss in the second molar related to impacted mandibular third molars: comparison between panoramic images and cone beam computed tomography. Med Oral Patol Oral Cir Bucal. 2020;25(3):e395–402. https://doi.org/10.4317/medoral.23443
    [Google Scholar]
20. Zambrano-De la Peña LS, Aliaga-Del Castillo A, Rodríguez- Cárdenas YA, Ruiz-Mora GA, Arriola-Guillén LE, Guerrero ME. Bucco alveolar bone thickness of mandibular impacted third molars with different inclinations: a CBCT study. Surg Radiol Anat. 2020;42(9):1051–6. https://doi.org/10.1007/s00276-020-02447-1
    [Google Scholar]