Critical analysis of a new system to classify root and canal morphology — A systematic review

Abstract

A novel system to classify root and canal morphology was recently introduced (Ahmed et al. 2017). This systematic review aimed to answer the following research question: Does the Ahmed et al. system provide a more accurate and practical classification of root and canal anatomy compared to other classifications? A literature search was conducted in Google Scholar, Scopus and Wiley Online Library to identify the citation counts for the article entitled ‘A new system for classifying root and root canal morphology; doi.org/10.1111/iej.12685’. After removal of duplicates and unrelated articles, 15 studies were included and analysed. All studies compared the Ahmed et al. system with the Vertucci classification. Results revealed that both systems were able to classify simple canal configurations in single‐rooted anterior and premolar teeth, disto‐buccal and palatal roots of maxillary molars. However, the Ahmed et al. system provided more accurate and comprehensive categorisations of single‐rooted teeth with complex canal anatomy, multi‐rooted maxillary and mandibular premolars and the mesio‐buccal root of maxillary molars. Further evidence on the utility of the Ahmed et al. system is required using other diagnostic devices especially in molars.

A Proposal to Develop a New Classification for Pulp Chamber Anatomy

“…The root and canal coding system introduced by Ahmed et al ( 64 ) was based on a critical analysis of the literature and the identification of deficiencies in previous classifications, such as the inability to define the number of roots in anterior and premolar teeth, inability to address complex canal configurations, etc. These issues have been discussed in a recent systematic review ( 70 ). However, it is obvious that the same strategy cannot be applied when attempting to classify pulp chamber anatomy because of the limited number of classifications used to characterise the anatomy of the pulp chamber (which are only related to the pulp chamber floor), and the limited literature available on the topic using high resolution imaging devices (such as micro-CT and CBCT).…”

Cone-beam Computed Tomography Analysis of the Root Canal Morphology of Mandibular Incisors Using Two Classification Systems in a Spanish Subpopulation: A Cross-Sectional Study

“…Furthermore, mandibular incisors have not been previously assessed in the Spanish population. Though the Vertucci classification ( 14 ) has been used widely, the Ahmed et al ( 13 ) classification has been purported to describe the root and canal morphology more accurately and practically ( 15 ), as allows to characterize all canal configurations and tooth anomalies ( 16 ). Similarly, the level of canal splitting has attracted attention due to its outstanding clinical relevance as it would support canal location when required ( 15 , 17 ).…”