CODS - Journal of Dentistry

Register      Login

VOLUME 10 , ISSUE 1 ( January-June, 2018 ) > List of Articles


A Case Report of Occurrence of Type B Radix Entomolaris in Permanent Mandibular First Molars

Yanina Singh

Keywords : Bilateral, Permanent first molar teeth, Radix entomolaris

Citation Information : Singh Y. A Case Report of Occurrence of Type B Radix Entomolaris in Permanent Mandibular First Molars. CODS J Dent 2018; 10 (1):21-23.

DOI: 10.5005/jp-journals-10063-0040

License: CC BY-NC 4.0

Published Online: 01-04-2020

Copyright Statement:  Copyright © 2018; The Author(s).


Aim: To present a case of occurrence of type B radix entomolaris in permanent mandibular first molars. Background: Radix entomolaris is a condition where an extra root is present distolingually to the distal root in the tooth. It can be seen in primary as well as permanent teeth. Case description: An 8-year-old patient reported with complaint of pain in lower left and right back tooth region since one month. On clinical examination, deep occlusal caries (ICDAS 5) was seen with respect to 36 and 46. On radiographic examination, an extra root was seen along with distal root in left and right mandibular first molar tooth. Conclusion: Knowledge of dental anomalies is very important from the perspective of pedodontist and endodontist. If any of the anomalies is missed by the clinician, there are high chances of failure of the treatment. Upon caries excavation, pulp was not exposed so indirect pulp capping treatment was done for 36 and 46. Clinical significance: Radix entomolaris is considered as an important condition from endodontic point of view and for providing good treatment especially in cases of root canal therapy.

  1. Nagaveni NB, Umashankara KV. Radix entomolaris and paramolaris in children: a review of the literature. J Indian Soc Pedod Prev Dent 2012;30(2):94–102. DOI: 10.4103/0970-4388.99978.
  2. De Moor RJ, Deroose CA, Calberson FL. The radix entomolaris in mandibular first molars: an endodontic challenge. Int Endod J 2004;37(11):789–799. DOI: 10.1111/j.1365-2591.2004.00870.x.
  3. Nagaveni NB, Poornima P, Valsan A, et al. Prevalence of three-rooted primary mandibular first molars in children of Davangere, Karnataka, India. CODS J Dent 2017;9(1):7–9. DOI: 10.5005/jp-journals-10063-0025.
  4. Nagaveni NB, Poornima P, Valsan A, et al. Prevalence of three-rooted primary mandibular second molars in Karnataka (South Indian) population. Int J Pedod Rehabil 2018;3(1):33–35. DOI: 10.4103/ijpr.ijpr_23_17.
  5. Nagaveni NB, Bajaj M, Shruthi AS, et al. Radix paramolaris (supernumerary third root) in primary mandibular second molar: report of two cases. Niger J Exp Clin Biosci 2014;2(2):134–137. DOI: 10.4103/2348-0149.144861.
  6. Nagaveni NB, Umashankara KV, Radhika NB. A retrospective analysis of accessory roots in mandibular molars of Indian pediatric patients. Int J Dent Anthropol 2012;20:38–46.
  7. Różyło TK, Piskórz MJ, Różyło-Kalinowska IK. Radiographic appearance and clinical implications of the presence of radix entomolaris and radix paramolaris. Folia Morphologica 2014;73(4):449–454. DOI: 10.5603/FM.2014.0067.
  8. Nagveni NB, Poornima P, Mathew MG. Radix entomolaris in the permanent mandibular first molars of Davangere children: a prevalence study. Niger J Exp Clin Biosci 2017;5:11–15. DOI: 10.4103/njecp.njecp_28_15.
  9. Tu MG, Tsai CC, Jou MJ, et al. Prevalence of three-rooted mandibular first molars among Taiwanese individuals. J Endod 2007;33(10): 1163–1166. DOI: 10.1016/j.joen.2007.07.020.
  10. Carlsen O, Alexandersen V. Radix entomolaris: identification and morphology. Scand J Dent Res 1990;98(5):363–373. DOI: 10.1111/j.1600-0722.1990.tb00986.x.
  11. Nagaveni NB, Chandani GR, Kothari S, et al. Radix entomolaris in children—A challenge to pedodontist-A report of case series with literature review. Int J Contemp Dent Med Rev 2015;2015: 360115.
  12. Calberson FL, De Moor RJ, Deroose CA. The radix entomolaris and paramolaris: clinical approach in endodontics. J Endod 2007;33(1): 58–63. DOI: 10.1016/j.joen.2006.05.007.
  13. Song JS, Kim SO, Choi BJ, et al. Incidence and relationship of an additional root in the mandibular first permanent molar and primary molars. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009;107(1):e56–e60. DOI: 10.1016/j.tripleo.2008.09.004.
  14. Nagaveni NB, Umashankar KV, Radhika NB, et al. Third root (radix entomolaris) in permanent mandibular first molars in pediatric patients–an endodontic challenge. J Oral Health Comm Dent 2011;5(1):49–51. DOI: 10.5005/johcd-5-1-49.
  15. Gupta S, Nagaveni NB, Chandranee NJ. Three-rooted mandibular first primary molar: report of three cases. Contemp Clin Dent 2012;3(Suppl 1): S134–S136. DOI: 10.4103/0976-237X.95126.
  16. Nagaveni NB, Umashankar KV. Radix entomolaris in permanent mandibular first molars: case reports and literature review. Gen Dent 2009;57(3):e25–e29.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.