Accessory roots and root canals in human anterior teeth: a review and clinical considerations

Ahmed, Hany Mohamed Aly; Hashem, Ahmed Abdel Rahman

doi:10.1111/iej.12508

Cited by 59 publications

(69 citation statements)

References 99 publications

(287 reference statements)

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“…Based on the results of the present study, the mean of pulp-to-tooth volume ratios in maxillary and mandibular canines was higher than that in other teeth, which is expected by taking account of the anatomy, morphology and the size of canines and the minor effect of irritating factors on secondary dentin formation (18). …”

Section: Discussionsupporting

confidence: 59%

“…there is a decrease in pulp volume with aging. Such a correlation was stronger in the maxillary central incisors and canines compared to other teeth, which might be explained by less internal anatomical variations in these teeth (18). In addition, it is easier and more accurate to separate the pulpal area in teeth with one root canal with longer dimensions using software techniques.…”

Section: Discussionmentioning

confidence: 99%

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Relationship between pulp-tooth volume ratios and chronological age in different anterior teeth on CBCT

2017

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BackgroundThe CBCT imaging technique exhibits proper accuracy to determine the internal anatomy of teeth. Therefore, this technique can use to estimate age by measuring the amount of decrease in the volume of the pulpal cavity of teeth. The aim of the present study was to evaluate the correlation between chronological age and pulp-to-tooth volume ratios in anterior teeth with the use of the CBCT technique and to determine a regression model to estimate human age.Material and MethodsIn this present descriptive-analytical study, 122 subjects (46 males and 76 females), with an age range of 13-70 years, were evaluated. The MIMICS software program was used to determine the pulp-to-tooth volume ratios in 732 anterior teeth. Regression analysis was used to assess the correlation between age and pulp to tooth volume ratios.ResultsIn all the teeth evaluated, there was an inverse and significant correlation between age and the pulp-to-tooth volume ratios in males and females, with a stronger correlation in males. In addition, such a correlation was stronger in maxillary central incisors and canines. In the model in which the mean of ratios in anterior teeth was used to estimate age the correlation was stronger compared to that in single tooth.ConclusionsIn general, the results of the present study showed that it is advisable to use the mean of all the ratios of anterior teeth in forensics to estimate age. Key words:Age estimation , cone-beam CT, forensic dentistry, secondary dentin, pulp cavity.

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Section: Discussionsupporting

confidence: 59%

Section: Discussionmentioning

confidence: 99%

Relationship between pulp-tooth volume ratios and chronological age in different anterior teeth on CBCT

2017

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“…In the human dentition, a wide range of anatomical variations in each tooth type has been reported in terms of the number and shape of roots and root canals (Vertucci , Ahmed & Abbott , Versiani et al . , , Ahmed , Ahmed & Hashem ). For many decades, this topic has been the subject of numerous experimental and clinical reports, and it is clear that root and canal morphology vary greatly between populations, within populations and even within the same individual (Vertucci , Ahmed & Cheung , Ahmed , Versiani et al .…”

Section: Introductionmentioning

confidence: 99%

A new system for classifying root and root canal morphology

et al. 2016

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Ahmed HMA, Versiani MA, De-Deus G, Dummer PMH. A new system for classifying root and root canal morphology. International Endodontic Journal, 50, 761-770, 2017. Knowledge of root and root canal morphology is a prerequisite for effective nonsurgical and surgical endodontic treatments. The external and internal morphological features of roots are variable and complex, and several classifications have been proposed to define the various types of canal configurations that occur commonly. More recently, improvements in nondestructive digital image systems, such as conebeam and micro-computed tomography, as well as the use of magnification in clinical practice, have increased the number of reports on complex root canal anatomy. Importantly, using these newer techniques, it has become apparent that it is not possible to classify many root canal configurations using the existing systems. The purpose of this article is to introduce a new classification system that can be adapted to categorize root and root canal configurations in an accurate, simple and reliable manner that can be used in research, clinical practice and training.

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“…, Cleghorn et al . , Musale & Hegde , Ahmed , Ahmed & Hashem ), especially double‐rooted primary maxillary canines (Mochizuki et al . ).…”

Section: Reviewmentioning

confidence: 99%

Application of a new system for classifying tooth, root and canal morphology in the primary dentition

Ahmed

Musale²,

Shahawy

et al. 2019

Int Endodontic J

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Knowledge of root and canal morphology is essential for the effective practice of root canal treatment. Paediatric endodontics aims to preserve fully functional primary teeth in the dental arch; however, pulpectomy procedures in bizarre and tortuous canals encased in roots programmed for physiologic resorption are unique challenges. A new coding system for classifying the roots and main canals (https://doi.org/10.1111/iej.12685), accessory canals (https://doi.org/10.1111/iej.12800) and developmental anomalies (https://doi.org/10.1111/iej.12867) has been introduced recently. This paper discusses challenges for describing root and canal morphology in primary teeth and describes the potential application of the new classification system for root canals in the primary dentition.

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Accessory roots and root canals in human anterior teeth: a review and clinical considerations

Cited by 59 publications

References 99 publications

Relationship between pulp-tooth volume ratios and chronological age in different anterior teeth on CBCT

Relationship between pulp-tooth volume ratios and chronological age in different anterior teeth on CBCT

A new system for classifying root and root canal morphology

Application of a new system for classifying tooth, root and canal morphology in the primary dentition

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