A rare presentation of dens invaginatus in a mandibular lateral incisor occurring concurrently with bilateral maxillary dens invaginatus: Case report and review of literature

Abstract

Background: Dens Invaginatus (DI), commonly known as dens in dente, is a developmental malformation of tooth that most commonly affects permanent maxillary lateral incisor teeth. Deciduous teeth are infrequently affected. Presence of DI in mandibular permanent teeth is extremely rare. Further, the presence of DI bilaterally in the maxillary lateral incisors of the same patient is even more unusual. Methods: In this article, an unusual case of DI affecting a mandibular lateral incisor tooth is described. This malformation was uncovered after a full mouth radiographic examination when the patient presented for dental treatment unrelated to this finding. In addition, the various radiographic appearances of DI as they present within the maxillary and mandibular teeth are described. Essential clinical considerations and treatment options are presented. A review of the pertinent literature is undertaken and a table summarizing previous published findings of mandibular DI is presented. Results: A review of the literature indicates that DI in mandibular teeth is extremely rare with only 10 other cases involving 13 teeth reported previously. Conclusions: Although this is an extremely rare case, DI is an anomaly that should be familiar to all practising dentists due to the clinical implications of potential sequelae of pulpal involvement.

Developmental anomalies affecting the morphology of teeth – a review

“…The classical radiographic appearance of coronal DI is a pear shaped invagination of enamel and dentin with a narrow constriction at the opening on the surface of the tooth. The infolding of the enamel lining is more radio-opaque than the surrounding tooth structure aiding easy identification [50].…”

Maksi̇ller 2.MOLAR Di̇şte İzlenen Dens Invaji̇natus: Olgu Sunumu

“…1,7 Bizim vakamızda ise dişin anatomisi ve pulpanın durumu göz önünde bulundurularak çekim kararı verilmiştir.…”

“…[1][2][3] İnvajinasyon kökte ve kronda görülebilen bir anomalidir. Oehlers 4 DI'u invajinasyon derinliğine göre 3 grup altında sınıflandırmıştır: Tip 1: Mine sement birleşimini geçmeyen, kron ile sınırlı invajinasyonun minör formu Tip 2: Mine sement sınırını geçen fakat kök içerisinde kalan, kör boşluğun olduğu invajinasyon…”

“…[10][11][12][13] Bu vaka raporunda 18 yaşındaki kadın hastada, maksiller 2.molar dişte oldukça nadir rastlanan tip III DI olgusu sunulmuştur. ve enfeksiyon 1,3 gibi diğer eksternal faktörler potansiyel sebepler olarak bildirilmiştir.…”

Permanent mandibular incisor with multiple anomalies - report of a rare clinical case

“…It is seen predominantly in the maxilla and the most commonly affected tooth is the maxillary lateral incisor, followed by the maxillary central incisor, premolar, canine and molar (3). It usually occurs unilaterally, but bilateral cases have also been reported (4). Occurrence of dens invaginatus in mandibular teeth is very rare.…”