Ectopic Eruption of Mandibular Permanent First Molar Correction: A Case Report

Lowphruckmanee Wanna

Ectopic eruption of permanent first molars occurs due to the molar’s abnormal mesioangular eruption path, resulting in an impaction at distal prominence of the primary second molar’s crown. The objective of this article was to report a six-year-old girl who had ectopic eruption of left mandibular permanent first molar and corrected by using Halterman appliance designed to move left mandibular permanent first molar distally with elastic chain. The molar had been successfully treated and uprighted.

1. American Academy of Pediatric Dentistry. Guideline on management of the developing dentition and occlusion in pediatric dentistry. Pediatr Dent 2017; 38(6): 289-301.


2. Dean JA, McDonald RE, Avery DR. Management of the developing occlusion. In: McDonald RE, Avery DR, Dean JA, ed: Dentistry for the Child and Adolescent. 8th ed. Maryland Heights, Mo: Mosby Elsevier; 2004: 625-683.

3. Casamassimo PS, Christensen JR, Fields HW. Examination, diagnosis, and treatment planning. In: Pinkham JR, Casamassimo PS, McTigue DJ, Fields HW, Nowak AJ, ed: Pediatric Dentistry: Infacy Through Adolescence. 4th ed. St. Louis, Mo: Elsevier Saunders; 2005: 477-512.

4. Prasad MG, Mamidi D, Radhakrishna AN, Santosh Kumar KVK. Modified Halterman appliance-a key to alter bilateral ectopic eruption of maxillary permanent first molars. Int J Current Adv Res 2017; 6(6): 4362-4365.

5. Abu-Hussein M, Watted N, Abdulgani A. Halterman technique for the treatment of ectopically erupting permanent first molars. IOSR-J Dent Med Sci 2015; 14(12): 72-78.

6. Chintakanon K, Boonpinon P. Ectopic eruption of the first permanent molars: prevalence and etiologic factors. Angle Orthod 1998; 68(2): 153-160.

7. Yaseen SM, Naik S, Uloopi KS. Ectopic eruption – a review and case report. Contemp Clin Dent 2011; 2(1): 3-7.

8. Hsiao CC, Boynton JR. Etiology, classification and management of ectopic eruption of permanent first molars. J Mich Dent Assoc 2016; 98(1): 26-30.

9. Christensen JR, Fields HW. Treatment planning and management of orthodontic problems. In: Pinkham JR, Casamassimo PS, McTigue DJ, Fields HW, Nowak AJ, ed: Pediatric Dentistry: Infacy Through Adolescence. 4th ed. St. Louis, Mo: Elsevier Saunders; 2005: 608-648.

10. Rajesh R, Naveen V, Amit S, Baroudi K, Sampath Reddy C, Namineni S. Treatment of ectopic mandibular second permanent molar with elastic separators. Case Rep Dent 2014; 2014: 621568.

11. Huang WJ, Childers NK. Clinical aid in placing brass wires to treat ectopically erupting permanent first molars. Pediatr Dent 1995; 17(2): 122-123.

12. Kim YH, Park KT. Simple treatment of ectopic eruption with a triangular wedging spring. Pediatr Dent 2005; 27(2): 143-145.

13. Jun H, Lee HS, Song JS, Lee JH, Choi BJ, Kim SO. The Rect-spring: a new device for treating ectopically erupting permanent molars. Pediatr Dent 2014; 36(7): 143-146.

14. Poornima P, Pathak S, Bharath KP, Roopa KB. Simple treatment of ectopic eruption with a stainless steel crown. Chrismed J Health Res 2015; 2(3): 289-291.

15. Lin YT. Ectopically erupting mandibular first permanent molar: treatment of a case. J Clin Pediatr Dent 1996; 21(1): 31-33.

16. Nam OH, Ahn HJ, Kim MS, Park JH. Treatment of ectopic permanent maxillary first molar using a K-loop. J Clin Pediatr Dent 2015; 39(4): 387-391.

17. Sharma PS, Rypel TS. Ectopic eruption of permanent molars and their management. Quintessence Int 1978; 9: 47-52.

18. Halterman CW. A simple technique for the treatment of ectopically erupting permanent first molars. J Am Dent Assoc 1982; 105(6): 1031-1033.

19. Kennedy DB. Clinical tips for the Halterman appliance. Pediatr Dent 2007; 29(4): 327-329.

20. Raveli TB, Raveli DB, de Mathias Almeida KC, Pinto ADS. Molar uprighting: A considerable and safe decision to avoid prosthetic treatment. Open Dent J 2017; 11: 466-475.

21. Kennedy DB. Management of an ectopically erupting permanent mandibular molar: a case report. Pediatr Dent 2008; 30(1): 63-65.

22. Romano FL, Arid J, de Queiroz AM, Bezerra Segato RA, Filho PN. A modified Nance palatal arch for the treatment of ectopically erupting permanent first molars. J Dent Child 2016; 83(3): 161-166.

23. Mitsuhata C, Konishi Y, Kaihara Y, Kozaia K. Treatment of ectopic eruption of permanent mandibular first molars with innovative dental appliances. Eur J Paediatr Dent 2014; 15(2): 181-183.

Lowphruckmanee W. Ectopic Eruption of Mandibular Permanent First Molar Correction: A Case Report: A case reports/series. CM Dent J [Internet]. 2020 Jan 01 [cited 2024 Nov 01];41(1):109-118. Available from: https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=48

& Lowphruckmanee, W. (2020). Ectopic Eruption of Mandibular Permanent First Molar Correction: A Case Report. CM Dent J, 41(1), 109-118. Retrieved from: https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=48

Lowphruckmanee, W., . 2020. "Ectopic Eruption of Mandibular Permanent First Molar Correction: A Case Report." CM Dent J, 41(1), 109-118. https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=48

Lowphruckmanee, W. et al. 2020. 'Ectopic Eruption of Mandibular Permanent First Molar Correction: A Case Report', CM Dent J, 41(1), 109-118. Retrieved from https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=48

and Lowphruckmanee, W. "Ectopic Eruption of Mandibular Permanent First Molar Correction: A Case Report", CM Dent J, vol.41, no. 1, pp. 109-118, Jan. 2020.

Lowphruckmanee Wanna "Ectopic Eruption of Mandibular Permanent First Molar Correction: A Case Report." CM Dent J, vol.41, no. 1, Jan. 2020, pp. 109-118, https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=48