Prevalence and characteristics of ectopic eruption of the first permanent molar and predictive factors for clinical outcome

Document Type : Original Article

Authors

1 Department of Pediatric Dentistry, Gaziantep University, Gaziantep, Türkiye

2 Department of Surgery and Pediatric Dentistry, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkestan, Kazakhstan

3 Department of Pediatric Dentistry, Alanya Alaaddin Keykubat University, Antalya, Türkiye

Abstract

Background: The primary objective of this study was to assess the occurrence, distribution, and features of ectopic first permanent molars (FPMs), as well as to investigate the clinical outcomes associated with ectopic eruption based on the degree of root resorption observed in primary second molars.
Methods: This study was performed retrospectively by examining panoramic radiographs of 7070 patients aged 5 to 12 years. The gender and age of the patients, the number, location, and distribution mode of ectopic FPMs, the resorption degree of the distal roots of primary second molars, and the clinical outcome of ectopic eruption were evaluated. Descriptive statistics and chi-square test were performed on the obtained data using SPSS version 22 (SPSS Inc, Chicago, IL, USA).
Results: In 144 of 7070 cases, a total of 221 ectopic permanent first molar teeth were detected (2% prevalence). The mean age of the 144 patients was 8.04 years. Ectopic eruption was most common in patients aged 7–8 years (48.63%), which was statistically significant (P < 0.05). Ectopic eruptions were more common in females (58.30%) than males (41.70%; P < 0.05). Of the ectopic permanent first molars, 78 (35.30%) were in the mandible, and 143 (64.70%) were in the maxilla. The relationship between the degree of resorption and the type of ectopic eruption was statistically significant (P < 0.05).
Conclusion: The increase in the severity of root resorption in the primary second molars was a significant predictor for the prognosis of ectopic eruption in the present study. Early diagnosis and treatment of ectopic FPMs are of great importance to preventing premature loss of primary second molars resulting in malocclusion.

Keywords

Main Subjects

References

  1. Barberia-Leache E, Suarez-Clúa MC, Saavedra-Ontiveros D. Ectopic eruption of the maxillary first permanent molar: characteristics and occurrence in growing children. Angle Orthod. 2005;75(4):610-5. doi: 10.1043/0003-3219(2005)75[610:eeotmf]2.0.co;2.
  2. Hali H, Salehi M, Molania Jelodar T, Farahbod F, Maghfouri H. Prevalence of ectopic eruption of first permanent molars in panoramic images of 5-8-year-old children in Sari, Mazandaran province, north of Iran in 2013-2020. Int J Pediatr. 2021;9(5):13591-7. doi: 10.22038/ijp.2020.54228.4288.
  3. Chapman H. First upper permanent molars partially impacted against second deciduous molars. Int J Orthod Oral Surg Radiogr. 1923;9(5):339-45. doi: 10.1016/s0099-6963(23)80023-0.
  4. Mendoza-Mendoza A, Villalon-Rivero G, González-Mallea E, Caleza-Jiménez C, Solano-Mendoza B, Yañez-Vico R, et al. Ectopic eruption of the permanent maxillary first molar: study in a population of 505 South European children. Edorium J Dent. 2014;1:7-11. doi: 10.5348/d01-2014-2-oa-2.
  5. Çalışkan S, Tuloglu N, Ozdemir C, Kizilaslan S, Bayrak S. Ectopic eruption of maxillary permanent first molars: predictive factors for self-corrected and impacted outcome. Int J Clin Pract. 2021;75(3):e13880. doi: 10.1111/ijcp.13880.
  6. Helm A, Martín-Vacas A, Molinero-Mourelle P, Caleya AM, Gallardo NE, Mourelle-Martínez MR. Ectopic eruption of maxillary first permanent molars: preliminary results of prevalence and dentoskeletal characteristics in Spanish paediatric population. Children (Basel). 2021;8(6):479. doi: 10.3390/children8060479.
  7. Güven Y. Prevalence of ectopic eruption of first permanent molars in a Turkish population. Eur Oral Res. 2018;52(1):1-5. doi: 10.26650/eor.2018.45227.
  8. Rah Y, Lee J, Ra J. Association between ectopic eruption of the maxillary first permanent molar and skeletal malocclusion. J Korean Acad Pediatr Dent. 2017;44(2):147-53. doi: 10.5933/jkapd.2017.44.2.147.
  9. Chen X, Huo Y, Peng Y, Zhang Q, Zou J. Ectopic eruption of the first permanent molar: predictive factors for irreversible outcome. Am J Orthod Dentofacial Orthop. 2021;159(2):e169-e77. doi: 10.1016/j.ajodo.2020.09.020.
  10. Young DH. Ectopic eruption of the first permanent molar. J Dent Child. 1957;24:153-62.
  11. Bjerklin K, Kurol J. Prevalence of ectopic eruption of the maxillary first permanent molar. Swed Dent J. 1981;5(1):29-34.
  12. Carr GE, Mink JR. Ectopic eruption of the first permanent maxillary molar in cleft lip and cleft palate children. J Dent Child (Chic). 1965;32:179-88.
  13. Bjerklin K, Kurol J. Ectopic eruption of the maxillary first permanent molar: etiologic factors. Am J Orthod. 1983;84(2):147-55. doi: 10.1016/0002-9416(83)90179-3.
  14. Ambriss B, Moukarzel C, Noueiri B. Management of bilateral ectopically erupting maxillary molars: a case report. Int J Clin Pediatr Dent. 2019;12(2):153-6. doi: 10.5005/jpjournals-10005-1602.
  15. Pulver F. The etiology and prevalence of ectopic eruption of the maxillary first permanent molar. ASDC J Dent Child. 1968;35(2):138-46.
  16. Kupietzky A. Correction of ectopic eruption of permanent molars utilizing the brass wire technique. Pediatr Dent. 2000;22(5):408-12.
  17. Salbach A, Schremmer B, Grabowski R, Stahl de Castrillon F. Correlation between the frequency of eruption disorders for first permanent molars and the occurrence of malocclusions in early mixed dentition. J Orofac Orthop. 2012;73(4):298-306. doi: 10.1007/s00056-012-0083-2.
  18. Canut JA, Raga C. Morphological analysis of cases with ectopic eruption of the maxillary first permanent molar. Eur J Orthod. 1983;5(3):249-53. doi: 10.1093/ejo/5.3.249.
  19. Özdemir DS, Altan H. Ectopic eruption of permanent first molar teeth. Yeditepe Dent J. 2021;17(1):69-75.
  20. Mooney GC, Morgan AG, Rodd HD, North S. Ectopic eruption of first permanent molars: presenting features and associations. Eur Arch Paediatr Dent. 2007;8(3):153-7. doi: 10.1007/bf03262586.
  21. Tirali RE, Yalçınkaya Erdemci Z, Çehreli SB. Eruption anomalies. GÜ Diş Hek Fak Derg. 2011;28(3):217-23.
  22. Hennessy J, Al-Awadhi EA, Dwyer LO, Leith R. Treatment of ectopic first permanent molar teeth. Dent Update. 2012;39(9):656-8, 60-1. doi: 10.12968/denu.2012.39.9.656.
  23. Yaseen SM, Naik S, Uloopi KS. Ectopic eruption - a review and case report. Contemp Clin Dent. 2011;2(1):3-7. doi: 10.4103/0976-237x.79289.
  24. Anoush K, Valizadeh Haghi H, Vahedi H, Nemati R, Mikaeeli Khyiavi H. A study on the frequency of ectopic eruption of permanent first molar and canine in patients presenting to the university of Ardabil school of dentistry, 2016- 2018. J Ardabil Univ Med Sci. 2019;18(4):497-505. doi: 10.29252/jarums.18.4.497. [Persian].
  25. Shojaeipoor R, Ghorbani-Gandomani M, Madani F, Malek-Mohammadi T. The inter relationships among growth parameters (weight, height) and ectopic eruption of permanent first molars of children aged 6-9 years in Kerman, Iran. J Oral Health Oral Epidemiol. 2018;7(3):107-12. doi: 10.22122/johoe.v7i3.416.
  26. Cheyne VD, Wessels KE. Impaction of permanent first molar with resorption and space loss in region of deciduous second molar. J Am Dent Assoc. 1947;35(11):774-87. doi: 10.14219/jada.archive.1947.0391.
  27. Mucedero M, Rozzi M, Cardoni G, Ricchiuti MR, Cozza P. Dentoskeletal features in individuals with ectopic eruption of the permanent maxillary first molar. Korean J Orthod. 2015;45(4):190-7. doi: 10.4041/kjod.2015.45.4.190.
  28. Rai A, Kumar T, Rai S, Kumari M, Chaudhary P. Evaluation of ectopic eruption in teeth’s of childrens from 5 to 12 years age group. Int J Med Biomed Stud. 2019;3(11):245-51. doi: 10.32553/ijmbs.v3i11.767.
  29. Dabbagh B, Sigal MJ, Tompson BD, Titley K, Andrews P. Ectopic eruption of the permanent maxillary first molar: predictive factors for irreversible outcome. Pediatr Dent. 2017;39(3):215-8.
  30. Sun J, Nam O, Kim M, Lee H, Choi S. Predictive factors of ectopic eruption of the maxillary first permanent molar. J Korean Acad Pediatr Dent. 2016;43(3):284-91. doi: 10.5933/jkapd.2016.43.3.284.
  31. Chintakanon K, Boonpinon P. Ectopic eruption of the first permanent molars: prevalence and etiologic factors. Angle Orthod. 1998;68(2):153-60. doi: 10.1043/0003-3219(1998)068 < 0153:eeotfp > 2.3.co;2.
Journal of Oral Health and Oral Epidemiology
Volume 12, Issue 2
July 2023
Pages 89-94

Files

History

  • Receive Date: 13 August 2021
  • Revise Date: 12 October 2021
  • Accept Date: 22 January 2022

Share

How to cite

Statistics