Rare Morphology of The Third Maxillary Molar and Potential Complications in its Extraction


  • Siti Mazlipah Ismail Department of Oro-Maxillofacial Surgical & Medical Sciences, Faculty of Dentistry, University Malaya
  • Firdaus Hariri Department of Oro-Maxillofacial Surgical & Medical Sciences, Faculty of Dentistry, University Malaya


Maxillary third molar, Root morphology, difficult extraction


There is a wide variation in the morphology of third maxillary molar which can be difficult to be identified radiographically. We present a case of a 26 year-old Yemeni female patient presented with difficult extraction of her left maxillary third molar. The extracted tooth showed a rare variation of root morphology, having four roots with three roots curving palatally at the apices. This report emphasized the potential complex morphological variation of maxillary third molar which may lead to the difficulty of a routine straight forward procedure thus needing careful extraction maneuvering to prevent any complications.


Download data is not yet available.


1. Tronstad L. Clinical Endodontics. A textbook. George Thieme Verlag, New York. 1991:195.
2. Stock C, Walker R, Gulabivala K. Endodontics. 3rd ed, Elsevier Mosby, Edinburgh. 2004:131.
3. Berkovictz BKB, Holland GR, Moxham BJ. Oral anatomy, histology and embryology. Mosby Elsevier, Edinburgh. 2009:22.
4. Zhang W, Tang Y, Liu C, Shen Y, Feng X, Gu Y. Root and root canal variations of the human maxillary and mandibular third molars in a Chinese population: A micro-computed tomographic study. Arch Oral Biol. 2018;95:134-140.
5. Ditty JM, Murugam S, Kareem N. Root morphology of maxillary and mandibular third molars – a potential cause for trans-alveolar extractions. Int J Res Pharm Sc. 2020;11(3):1393-1398.
6. Iwata E, Hasegawa T, Kobayachi M, Tachibana A, Takata N, Oko T, et al. Can CT predict the development of oroantral fistula in patients undergoing maxillary third molar removal? Oral Maxillofac Surg. 2020. https://doi.org/10.1007/s10006-020-00878-z
7. Mace T, Khan A, Dechaufour P, Kun-Darbois JD. An extremely rare case of a displaced third molar into the infratemporal fossa associated with a textiloma. J Stomatol Oral Maxillofac Surg. 2020;121(6):746-748.






Case Report

Most read articles by the same author(s)