Racial predilection of C-shaped canal configuration in the mandibular second molar

Abstract

Aim: The purpose of this article is to determine the racial predilection of C-shaped canal configuration in a mandibular second molar. Background: Unusual root canal anatomy always poses a diagnostic and treatment challenge. Identification of such variation is important for the success of root canal treatment outcome. C-shaped canal configuration is such an aberrant morphology of molar teeth that vary in different population and is commonly seen in a mandibular second molar. Thus, knowledge of racial predilection of C-shaped canal configuration in different population for early diagnosis is obligatory. Materials and Methods: An exhaustive search was undertaken to identify published research articles related to C-shaped canal configuration in mandibular second molars. Forty-three research articles were analyzed which included 12,481 mandibular second molars. Chi-square test using value of P < 0.05 was performed to assess the statistical significance of this anomalous anatomic variation among the different population. Results: Statistical test revealed a significant variation between the Asian and nonAsian population. The highest incidence of racial predilection was observed in China (Asia) with 93.1%, and the minimum was observed in America with 2.7%. Conclusion: This research reported that racial predilection of C-shaped canal configuration in mandibular second molar varies significantly.

Prevalence of C‐shaped canals and three‐rooted mandibular molars in the Iranian population by using cone‐beam computed tomography

“…According to previous studies, the C‐shaped canal configuration is observed more frequently in Asian populations (Alfawaz et al, 2019 ; Duman et al, 2019 ; Hajihassani et al, 2017 ; Nie et al, 2013 ; Pan et al, 2019 ; Singh et al, 2022 ; Sirawut et al, 2021 ; Suzuki et al, 2015 ). The frequency of C‐shaped canals in mandibular second molars was reported to be more prevalent in the Chinese population than in other races (Fernandes et al, 2014 ; Roy et al, 2019 ; von Zuben et al, 2017 ). A literature review showed that the Lebanese population had a higher incidence of C‐shaped canals in mandibular second molars in comparison with other West‐Asian populations, including the Iranian population (Fernandes et al, 2014 ).…”

“…Many studies reported a significantly high prevalence of C‐shaped canals in mandibular second molars (Haddadi et al, 2019 ; Madani et al, 2017 ; Martins et al, 2019 ; Roy et al, 2019 ; Yang et al, 2021 ; Zheng et al, 2011 ; von Zuben et al, 2017 ). According to previous studies, the C‐shaped canal configuration is observed more frequently in Asian populations (Alfawaz et al, 2019 ; Duman et al, 2019 ; Hajihassani et al, 2017 ; Nie et al, 2013 ; Pan et al, 2019 ; Singh et al, 2022 ; Sirawut et al, 2021 ; Suzuki et al, 2015 ).…”