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AuthorAl-Qudah, Aladdin Ahmad
AuthorBani Younis, Hamzeh A. Barakat
AuthorAwawdeh, Lama Adel
AuthorDaud, Alaa
Available date2023-05-15T06:13:54Z
Publication Date2023
Publication NameScientific Reports
ResourceScopus
ISSN2045-2322
URIhttp://dx.doi.org/10.1038/s41598-023-34134-7
URIhttp://hdl.handle.net/10576/42692
AbstractRestorative and prosthetic considerations usually necessitates endodontic treatment of third molars in order to retain them as a functional component of the dental arch. However, the anatomy of third molars has been described as unpredictable. To date, there has been little published work on root and canal morphology of third molars, with an adequate sample size. The aim of this study was to investigate root and canal morphology of third molars. Maxillary and mandibular third molars were gathered from dental surgeries within north Jordan. Following access cavity preparation, pulp tissue was removed and root canals stained. Teeth were subject to examination after rendering them clear by immersion in methyl salicylate, and the following features evaluated: (1) number of roots; (2) number and type of root canals; (3) number and position of lateral canals; and (4) presence of inter-canal communications. Out of the examined 592 maxillary third molars, 69.9% had three roots, 10.81% had one, 9.79% had two, 9.12% had four, and 0.34% had five roots. Most had three (52.36%) and four canals (28.2%) with less frequency of two (11.48%), one (5.91%) and five canals (2.03%). Of the 639 mandibular third molars, 89.76% had two roots, 7.35% had three, 2.5% had one, and 0.47% had four roots. Most had three (55.71%) and two canals (29.42%) with less frequency of four (13.61%), one (1.09%) and five canals (0.15%). The majority of maxillary third molars had 3 roots, while the majority of mandibular third molars had two. Overall, nearly half of the maxillary and mandibular third molars had three canals. New canal configurations, not previously described in the literature nor included in Vertucci's classifications, were identified in both maxillary and mandibular third molars. 2023, The Author(s).
SponsorThe authors wish to thank Jordan University of Science & Technology for supporting this project.
Languageen
PublisherNature Research
SubjectAnatomy
Oral anatomy
TitleRoot and canal morphology of third molar teeth
TypeArticle
Issue Number1
Volume Number13
dc.accessType Open Access


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