Dens evaginatus on maxillary first premolar: Report of a rare clinical case

Abstract

Dens evaginatus (DE) is an odontogenic developmental anomaly that can be defined as a tubercle or protuberance from the involved surface of the affected tooth consisting of an outer layer of enamel, a core of dentin, and may contain a slender extension of pulp tissue. Early diagnosis and management of DE is important in order to prevent occlusal interference, compromised esthetics, carious developmental grooves, periodontal problems due to excessive occlusal forces, or irritation of the tongue during speech and mastication. DE usually affects the mandibular second premolars as an accessory cusp or a protuberance between the buccal and lingual cusps. Reports of DE on maxillary premolar are rare in the literature. We report one such extremely rare case of DE on maxillary first premolar.

The Effect of Etiology on the Function of Hertwig\'s Epithelial Root Sheath in Regenerative Endodontic Procedures—A Review of Literature

“…18 In dens evaginatus or evaginatus odontoma which commonly involves mandibular premolars and maxillary lateral incisors bilaterally can be identified by a raised tubercle of around 3.5 mm in the occlusal surface of premolars and 6.0 mm in the palatal surface of anterior teeth. 19 This raised tubercle consists of enamel and dentin layer and sometimes may have the pulpal extension, 20 which makes these teeth more prone to early pulpal involvement following caries or occlusal trauma and this usually happens at a faster rate even before the completion of the root.…”

Endodontic treatment of dens evaginatus by performing a splint guided access cavity

“…Dens evaginatus (DE), which includes malformations such as interstitial cusp, tuberculated premolar, odontoma of the axial core type, evaginated odontoma, occlusal enamel pearl, occlusal anomalous tubercle, supernumerary cusp, and Leong's premolar, is defined as an unusual dental malformation arising during the odontogenesis process …”

“…dens evaginatus, guided endodontics, chairside system 1 | I NTR OD U CTI ON Dens evaginatus (DE), which includes malformations such as interstitial cusp, tuberculated premolar, odontoma of the axial core type, evaginated odontoma, occlusal enamel pearl, occlusal anomalous tubercle, supernumerary cusp, and Leong's premolar, is defined as an unusual dental malformation arising during the odontogenesis process. 1 Dens evaginatus is thought to originate from an abnormal proliferation and folding of the inner portion of the enamel epithelium and subjacent ectomesenchymal cells of dental papilla into the stellate reticulum of the enamel organ during the bell stage of tooth formation.…”