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Article: Volume 46 Number 2 Page 158 - February 2019

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  Dent Update 2019; 46: 158-165

Dental Anatomy:  Taurodontism Part 1: History, Aetiology and Molecular Signalling, Epidemiology and Classification

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Abstract: Taurodontism is a developmental morphological anomaly that affects the internal anatomy of the multi-rooted teeth; hence, it is difficult to distinguish from a normal tooth structure based only on external appearance. In this defect, the teeth have elongated and cylindrical pulp cavities, a deep furcation and short roots. This article aims to address an important problem related to the cause of taurodontism. Although it is a well-held belief that taurodontism is caused by delayed or failed invagination of Hertwig’s Epithelial Root Sheath (HERS), the molecular mechanism that signals this delay or failure had not been well understood until recently. This article discusses the history, aetiology, prevalence and classification of this morphological disorder, whereas part 2 of this 2-part series will discuss the biomechanics of taurodontic teeth, differential diagnosis and congenital disorders that mimic taurodontism, relevant syndromes, clinical implications and management.

Clinical relevance: In order to treat cases presenting taurodontism, it is essential to understand this anomaly along with its history, aetiology and associated epidemiology. This will provide clinicians with a deeper understanding when they encounter a relatively unnoticeable anomaly.

Author notes: Muhammad Hasan, BDS, FCPS, Assistant Professor and Head, Department of Operative Dentistry, Sir Syed College of Medical Sciences (Dental Section), Karachi, Pakistan.

Objective: To understand taurodontism and its associated epidemiology.

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