title: A Case Report of Dilacerated Crown of a Permanent Mandibular Central Incisor.
abstract: Trauma to primary teeth can lead to devastating sequels in development of permanent successors. The disturbance may range from enamel hypoplasia and/or hypo-calcification to arrest of dental bud development. Crown dilaceration of permanent teeth is one of the consequences of trauma to deciduous teeth mainly due to intrusion or avulsion. This report presents a mandibular central incisor with dilacerated crown and yellowish discoloration with symptomatic apical abscess. History revealed avulsion of primary mandibular central incisors. The purpose of this report is to present: 1. Reasons of dilacerated crown, yellowish discoloration and necrotic pulp in this case, 2. Treatment options in different types of crown dilacerations and also in this case. The tooth was successfully managed by nonsurgical root canal therapy and restoration with composite resin to restore esthetics. We emphasize that trauma to deciduous teeth should not be understated, and regular follow up is essential.
authors.affiliation: Associate Professor, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Behnam
authors.initials: B
authors.lastname: Bolhari
authors.affiliation: Assistant Professor, Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Salma
authors.initials: S
authors.lastname: Pirmoazen
authors.affiliation: Student, Department of Surgery, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Ensieh
authors.initials: E
authors.lastname: Taftian
authors.affiliation: Assistant Professor, Department of Endodontics, School of Dentistry, Alborz University of Medical Sciences, Karaj, Iran.
authors.forename: Somayeh
authors.initials: S
authors.lastname: Dehghan
keywords: Tooth; Tooth Abnormalities; Tooth Avulsion; Tooth, Deciduous