Imaging Sci Dent.  2012 Mar;42(1):47-54. 10.5624/isd.2012.42.1.47.

Unusual intraosseous transmigration of impacted tooth

• Kumar S
• Urala AS
• Kamath AT
• Jayaswal P
• Valiathan

• KMID: 1974407
• DOI: http://doi.org/10.5624/isd.2012.42.1.47

Abstract

Transmigration of an impacted tooth through the symphyseal suture is a rare and special developmental anomaly of unknown etiology that is unique to the mandibular canine. Maxillary canine transmigration is even rarer. Transmigrated canines are particularly significant due to the aesthetic and functional importance. A maxillary lateral incisor crossing the mid-palatal suture has never been reported in the literature. The aim of this report is to present the first case of simultaneous transmigration of a lateral incisor and canine in the maxilla. The paper also reports four unusual cases of unilateral canine transmigration in the maxilla and mandible and successful eruption of one of the transmigrated mandibular canines following orthodontic traction. Etiology of transmigration and its clinical considerations are also discussed.

Keyword

Cuspid; Tooth, Impacted; Tooth Migration

MeSH Terms

Cuspid
Incisor
Mandible
Maxilla
Sutures
Tooth Migration
Tooth, Impacted
Traction

Figure

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  Fig. 1 Maxillary Occlusal radiograph shows a horizontally impacted upper right lateral incisor and canine crossing the mid palatal suture with pericoronal radiolucency in relation to canine.

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  Fig. 2 CT sections show a transmigrated maxillary right lateral incisor and canine with pericoronal radiolucency.

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  Fig. 3 The extracted maxillary right lateral incisor and canine.

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  Fig. 4 Maxillary occlusal radiograph shows normal healing state after 8 months.

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  Fig. 5 Panoramic and maxillary occlusal radiograph show a transmigrated upper right canine horizontally impacted with its cusp tip against the root of the upper left central incisor.

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  Fig. 6 A. Intraoral photographs show missing lateral incisor and canine in the right upper quadrant. B. Panoramic, maxillary occlusal, and periapical radiographs show an impacted upper right canine and transmigration of a lower left canine with its crown located below the apices of the right central incisor.

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  Fig. 7 Successful eruption of the impacted canines following orthodontic traction.

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  Fig. 8 Panoramic radiograph shows a transmigrated horizontally impacted left canine near inferior border of the mandible with its crown's position below the root apices of right second premolar and first molar.

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  Fig. 9 Panoramic radiograph shows a transmigrated lower left canine with its crown located below the apices of right premolars.

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