Dental and Medical Problems

Dent Med Probl
Index Copernicus (ICV 2021) – 132.50
MEiN – 70 pts
CiteScore (2021) – 2.0
JCI (2021) – 0.5
Average rejection rate (2022) – 79.69%
ISSN 1644-387X (print)
ISSN 2300-9020 (online)
Periodicity – quarterly

Download PDF

Dental and Medical Problems

2016, vol. 53, nr 4, October-December, p. 566–569

doi: 10.17219/dmp/64496

Publication type: clinical case

Language: English

Download citation:

  • BIBTEX (JabRef, Mendeley)
  • RIS (Papers, Reference Manager, RefWorks, Zotero)

Creative Commons BY-NC-ND 3.0 Open Access

Clinical Management of Primary Mandibular First Molars with Atypical Morphology: Report of Two Cases

Postępowanie kliniczne w dwóch przypadkach pierwszych mlecznych zębów trzonowych o nietypowej budowie

Vignesh Palanisamy1,B,D, Ashwin Rao1,E,F, Arathi Rao1,F

1 Department of Pedodontics and Preventive Dentistry, Manipal College of Dental Sciences, Mangalore, Manipal University, India


Though variations in dental development are not uncommon, dental anomalies are rarer in primary dentition than in permanent dentition. Diagnosing such anomaly remains a challenge for the clinician. Primary mandibular first molars usually have two roots – mesial and distal. This article is a report of two cases with atypical crown and root morphology of the primary mandibular first molars. Both cases discussed had a bilateral crown and root variations where 3 roots were found in the primary mandibular first molars. All the teeth reported in this case report had a broader occlusal table resembling a primary maxillary molar, which posed a challenge during the dental treatment and required certain modifications from the routine procedures. The article focuses on diagnosis and modifications in the routine clinical procedures to be followed for such cases. The article also emphasizes the importance of preoperative radiographs in alerting the clinician to the presenting clinical challenge.

Key words

primary molar, tooth root, dental anomalies

Słowa kluczowe

mleczny ząb trzonowy, korzeń zęba, nieprawidłowości zębowe

References (10)

  1. Tratman E.K.: Three rooted lower molars in man and their racial distribution. Br. Dent. J. 1938, 64, 264–274.
  2. Tu M.G., Liu J.F., Dai P.W., Chen S.Y., Hsu J.T., Huang H.L.: Prevalence of three-rooted primary mandibular first molars in Taiwan. J. Formos Med. Assoc. 2010, 109, 69–74.
  3. Liu J.F., Dai P.W., Chen S.Y., Huang H.L., Hsu J.T., Chen W.L., Tu M.G.: Prevalence of 3-rooted primary mandibular second molars among Chinese patients. Pediatr. Dent. 2010, 32, 123–126.
  4. Song J.S., Kim S.O., Choi B.J., Choi H.J., Son H.K., Lee J.H.: Incidence and relationship of an additional root in the mandibular first permanent molar and primary molars. Oral Surg. Oral Med. Oral Pathol. 2009, 107, e56–60.
  5. American Academy of Pediatric Dentistry: Guideline on prescribing dental radiographs for infants, children, adolescents, and persons with special health care needs. Pediatr. Dent. 2012, 34, 189–191.
  6. Sharaf A.A.: Evaluation of mandibular infiltration versus block anesthesia in pediatric dentistry. J. Dent. Child. 1997, 64, 276–281.
  7. Mathewson R.J., Primosch R.E.: Fundamentals of pediatric dentistry. Edition, Quintessence Publishing Co, 2014, 241.
  8. Ramamurthy N., Srinivasan I.: Bilateral three rooted primary lower molars. Ind. J. Dent. Res. 2012, 23, 700.
  9. Gupta S., Nagaveni N.B., Chandranee N.J.: Three-rooted mandibular first primary molar: Report of three cases. Contemp. Clin. Dent. 2012, 3, 134–136.
  10. Poornima P., Pathak S., Nagaveni N.B., Roopa K.B.: Unusual morphology of primary mandibular first molar. Niger. J. Exp. Clin. Biosci. 2015, 3, 57–58.