Dentin dysplasia Type I: A rare case report

Abstract

Dentin dysplasia (DD) is an uncommon developmental disturbance affecting dentin, resulting in enamel with atypical dentin formation and abnormal pulpal morphology. Type I (radicular) and Type II (coronal) are the two types of DD. Type I is more common, and both types include single or multiple teeth in primary and permanent dentition. Combinations of both types have also been described in literature. Four distinct forms of Type I and one form of Type II were identified. This case report documents one such rarity of DD in an 11-year-old female with clinical and radiographical findings and management aspects.

Keywords: Atypical dentin; dental anomaly; dentin dysplasia; pulp obliteration; pulp stones; rootless teeth.

Figure 1

Intraoral photograph showing Ellis Class II fracture with respect to 11 and 21 with normal color, texture and shape of teeth

Figure 2

Radiovisiography showing obliterated pulp chambers and crescent-shaped pulp chambers having dentinal mass in the middle third of the root with defective root formation (a) upper incisors and (b) lower incisors

Figure 3

Orthopantomogram showing generalized dentin dysplasia Type I with obliterated pulp chambers with short/absence of roots with pulp stone and taurodontism-like appearance in molars

Figure 4

Cone-beam computed tomography scan of dentin dysplastic teeth showing the obliterated crescent-shaped pulp chambers with pulp stones defective root formation. (a) Coronal section of the 1^st premolar, (b) coronal section of the 2^nd premolar, (c) coronal section of lower anteriors, and (d) sagittal section of 42