Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2021 Apr-Jun;62(2):593-598.
doi: 10.47162/RJME.62.2.28.

Supernumerary permanent maxillary canine - a rare finding: case report and literature review

Oana Cella Andrei  1 , Mirela Ileana Dinescu, Cătălina Farcaşiu, Adriana Bisoc, Daniela Ioana Tărlungeanu, Livia Alice Tănăsescu, Magdalena Natalia Dina, Mihai Burlibaşa, Ruxandra Mărgărit
Affiliations
Review

Supernumerary permanent maxillary canine - a rare finding: case report and literature review

Oana Cella Andrei et al. Rom J Morphol Embryol. 2021 Apr-Jun.

Abstract

Supernumerary teeth are dental units that appear in addition to the regular number of teeth. Their most frequent location is the anterior maxilla, especially on the maxillary midline, being called mesiodens, but also paramedian or in the position of a lateral incisor. On the other hand, the permanent canine is one of the most stable teeth regarding the number, with very few cases reported about hypo- or hyperdontia. This article reviews the few data found in the literature about the supernumerary permanent maxillary canine and also presents the case of an 8-year-old female patient with a supplemental permanent canine in the upper left maxilla. The patient was non-syndromic and did not present any other supernumerary teeth in the permanent dentition; she had only one in the temporary dentition. Using cone-beam computed tomography (CBCT) of the region, we were able to evaluate the position, structure, and shape of the supplemental canine and also to establish a treatment plan. The aim of this paper was to present this extremely rare case of a non-syndromic Romanian adult female patient with a unilateral supplemental permanent maxillary canine, and to include a literature review of the few reported such cases.

PubMed Disclaimer

Conflict of interest statement

The authors declare that they have no conflict of interests.

Figures

Figure 1
Figure 1
Initial panoramic X-ray, aspect of the left lateral supplemental deciduous incisor
Figure 2
Figure 2
(a and b) Supernumerary left canine; CBCT aspect of both permanent and supernumerary canines in the left maxilla. CBCT: Cone-beam computed tomography
Figure 3
Figure 3
Aspect of the left central incisor presenting a coronal cyst and of the lateral incisor palatally displaced and blocked by the supernumerary canine
Figure 4
Figure 4
(a and b) The relationship between the temporary canine, the supernumerary permanent canine, and the normal permanent canine; CBCT aspect of the impacted and displaced central incisor, the palatally situated lateral incisor, the supernumerary canine, the first and second premolars and first molar. CBCT: Cone-beam computed tomography
Figure 5
Figure 5
The left upper maxilla: 3D reconstruction on CBCT. 3D: Three-dimensional; CBCT: Cone-beam computed tomography
Figure 6
Figure 6
(a–c) Clinical examination – 2.1 still not erupting: frontal view; right lateral view; left lateral view
Figure 7
Figure 7
Occlusal view of the upper arch
See this image and copyright information in PMC

References

    1. Mallineni SK. Supernumerary teeth: review of the literature with recent updates. Conf Pap Sci. 2014;2014:764050–764050.
    1. Primosch RE. Anterior supernumerary teeth - assessment and surgical intervention in children. Pediatr Dent. 1981;3(2):204–215. - PubMed
    1. Mitchell L, Carter NE. An introduction to orthodontics. 1. Oxford, UK: Oxford University Press; 1996. pp. 23–25.https://www.worldcat.org/title/introduction-to-orthodontics/oclc/4900693...
    1. Garvey MT, Barry HJ, Blake M. Supernumerary teeth – an overview of classification, diagnosis and management. J Can Dent Assoc. 1999;65(11):612–616. - PubMed
    1. Dăguci C, Burlibaşa M, Mărgărit R, Tănăsescu LA, Dăguci L, Bătăiosu M, Scrieciu M, Andrei OC. Maxillary distomolars: case reports, differential diagnosis and literature review. Rom J Morphol Embryol. 2017;58(4):1617–1622. - PubMed