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Clinical Considerations for Dental Management of Children with Molar-Root Incisor Malformations

  • Min Jin Kim1
  • Ji-Soo Song1
  • Young-Jae Kim1
  • Jung-Wook Kim1
  • Ki-Taeg Jang1
  • Hong-Keun Hyun1,*,

1Department of Pediatric Dentistry, Dental Research Institute,School of Dentistry, Seoul National University, Seoul, Republic of Korea

DOI: 10.17796/1053-4625-44.1.10 Vol.44,Issue 1,January 2020 pp.55-59

Published: 01 January 2020

*Corresponding Author(s): Hong-Keun Hyun E-mail: hege1@snu.ac.kr

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Abstract

Molar root-incisor malformation (MRIM) or molar-incisor malformation (MIM) is a new type of dental anomaly characterized by dysplastic roots of permanent first molars, occasionally second primary molars, and the crowns of maxillary central incisors. MRIM involving permanent first molars and second primary molars is characterized by normal crowns with short, thin, and narrow roots, whereas MRIM involving permanent maxillary central incisors exhibits constrictions of the crown in the cervical area. In the first case, we extracted the affected first permanent molars at the optimal timing to minimize space deficiencies and induce space closure. In addition, composite resin restorations were performed on the anterior central incisors. In the second case, a mandibular lingual arch was used to stabilize the affected teeth in order to mitigate discomfort by reducing rotational biting forces.


Keywords

Molar root-incisor malformation; Molar-incisor malformation; Root malformation

Cite and Share

Min Jin Kim,Ji-Soo Song,Young-Jae Kim,Jung-Wook Kim,Ki-Taeg Jang,Hong-Keun Hyun. Clinical Considerations for Dental Management of Children with Molar-Root Incisor Malformations. Journal of Clinical Pediatric Dentistry. 2020. 44(1);55-59.

URL:

https://www.jocpd.com/articles/10.17796/1053-4625-44.1.10

References

1. Witt CVA, Hirt T, Rutz G, Luder HU. Root malformation associated with a cervical mineralized diaphragm–a distinct form of tooth abnormality?. Oral Surg Oral Med Oral Pathol Oral Radiol 117(4): 311-319, 2014.

2. Luder HU. Malformations of the tooth root in humans. Front Physiol 27: 4-5, 2015.

3. Lee HS, Kim SH, Kim SO, Lee JH, Choi HJ, Jung HS, Song JS. A new type of dental anomaly: molar-incisor malformation (MIM). Oral Surg Oral Med Oral Pathol Oral Radiol 118(1): 101-109, 2014.

4. Lee HS, Kim SH, Kim SO, Choi BJ, Cho SW, Park W, Song JS. Microscopic analysis of molar-incisor malformation. Oral Surg Oral Med Oral Pathol Oral Radiol 119(5): 544-552, 2015.

5. Wright JT, Curran A, Kim KJ, Yang YM, Nam SH, Shin TJ, Hyun HK, Kim YJ, Lee SH, Kim JW. Molar root-incisor malformation: considerations of diverse developmental and etiologic factors. Oral Surg Oral Med Oral Pathol Oral Radiol 121(2): 164-172, 2016.

6. O Carroll MK, Duncan WK, Perkins TM. Dentin dysplasia: review of the literature and a proposed subclassification based on radiographic findings. Oral Surg Oral Med Oral Pathol 72(1): 119-125, 1991.

7. Toomarian L, Mashhadiabbas F, Mirkarimi M, Mehrdad L. Dentin dysplasia type I: a case report and review of the literature. J Med Case Rep 4: 1-6, 2010.

8. Fanibunda KB, Soames JV. Odontodysplasia, gingival manifestations, and accompanying abnormalities. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 81(1): 84-88, 1996.

9. Crawford PJ, Aldred MJ. Regional odontodysplasia: a bibliography. J Oral Pathol Med 18(5): 251-263, 1989.

10. Weerheijm KL. Molar Incisor Hypomineralisation (MIH). Eur J Paediatr Dent 4(3): 115-120, 2003.

11. Crombie F, Manton D, Kilpatrick N. Aetiology of molar-incisor hypomineralization: a critical review. Int J Paediatr Dent 19(2): 73-83, 2009.

12. McCreedy C, Robbins H, Newell A, Mallya SM. Molar-incisor malformation: Two cases of a newly described dental anomaly. J Dent Child 83(1): 33-37, 2016.

13. Thunold K. Early loss of the first molars 25 years after. Rep Congr Eur Orthod Soc 349-365, 1970.

14. Cobourne MT, Williams A, Harrison M. National clinical guidelines for the extraction of first permanent molars in children. Br Dent J 217(11): 643-648, 2014.

15. Patel S, Ashley P, Noar J. Radiographic prognostic factors determining spontaneous space closure after loss of the permanent first molar. Am J Orthod Dentofacial Orthop 151(4): 718-726, 2017.

16. Skaare AB, Maseng Aas AL, Wang NJ. Enamel defects in permanent incisors after trauma to primary predecessors: inter-observer agreement based on photographs. Dent Traumatol 29(2):79-83, 2013.

17. Coll JA, Sadrian R. Predicting pulpectomy success and its relationship to exfoliation and succedaneous dentition. Pediatr Dent 18(1):57-63, 1996.

18. Yue W, Kim E. Nonsurgical endodontic management of a Molar-Incisor Malfor- mation-affected mandibular first molar: A case report. J Endod 42(4): 664-668, 2016.

19. Brusevold IJ, Bie TMG, Baumgartner CS, Das R, Espelid I. Molar incisor malformation in six cases: Description and diagnostic protocol. Oral Surg Oral Med Oral Pathol Oral Radiol 124(1): 52-61, 2017.

20. Welbury R, Duggal MS, Hosey MT. Paediatric Dentistry, 4th edition. Oxford, UK: Oxford university press, 284-288, 2012.

21. Kathariya R, Devanoorkar A, Golani R, Shetty N, Vallakatla V, Bhat MY. To Splint or Not to Splint: The Current Status of Periodontal Splinting. J Int Acad Periodontol 18(2): 45-56, 2012.

22. Bernal G, Carvajal JC, Muñoz-Viveros CA. A review of the clinical management of mobile teeth. J Contemp Dent Pract 3(4): 10-22, 2002.


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