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Radicular dens invaginatus in a mandibular premolar: cone-beam computed tomography findings of a rare anomaly

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Abstract

Dens invaginatus is a rare developmental anomaly and its etiology remains controversial. Radicular dens invaginatus is an unusual dental anomaly. The aims of this paper are to report the radiographic and tomographic findings of a case of radicular dens invaginatus and to discuss the relevant features associated with this dental anomaly. A 16-year-old female was referred to a private oral radiology clinic for orthodontic evaluation. Radiographically, a morphological alteration to the root portion of the right mandibular first premolar and the presence of a discrete radiolucent periapical lesion were observed. The diagnosis was only elucidated after cone-beam computed tomography (CBCT). The CBCT images revealed enlargement of the root, and a dilated invagination with limited enamel that had its open site along the lateral portion of the root without evidence of buccal and lingual expansion. The diagnosis of radicular dens invaginatus was then established.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Oral Diagnosis, State University of Campinas, Piracicaba Dental School, Av Limeira, 901, Areião, Piracicaba, SP, 13414-903, Brazil

    Frederico Sampaio Neves, Marco Antônio Gomes Frazão & Solange Maria de Almeida

  2. Department of Oral Diagnosis, School of Dentistry, Pernambuco University, Av Gal Newton Cavalcanti, 1650, Camaragibe, Recife, PE, Brazil

    Andréa dos Anjos Pontual

  3. Department of Oral Radiology, School of Dentistry, Federal University of Bahia, Av Araújo Pinho, 72, Canela, Salvador, BA, Brazil

    Paulo Sérgio Flores Campos

  4. Department of Oral Radiology, School of Dentistry, Federal University of Pernambuco, Cidade Universitária, Av Professor Moraes Rego, 1235, Recife, PE, Brazil

    Flávia Maria de Moraes Ramos-Perez

Authors
  1. Frederico Sampaio Neves
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  2. Andréa dos Anjos Pontual
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  3. Paulo Sérgio Flores Campos
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  4. Marco Antônio Gomes Frazão
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  5. Solange Maria de Almeida
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  6. Flávia Maria de Moraes Ramos-Perez
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Corresponding author

Correspondence to Frederico Sampaio Neves.

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Neves, F.S., dos Anjos Pontual, A., Campos, P.S.F. et al. Radicular dens invaginatus in a mandibular premolar: cone-beam computed tomography findings of a rare anomaly. Oral Radiol 29, 70–73 (2013). https://doi.org/10.1007/s11282-012-0101-5

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  • DOI: https://doi.org/10.1007/s11282-012-0101-5

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