Root and canal anatomy of mandibular  first molar teeth of an Indian population

Atram, Jatin; Banga, Kulvinder Singh; Gupta, Pankaj

doi:10.4103/endo.endo_71_19

Cited by 3 publications

(2 citation statements)

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“…Various studies conducted using conventional radiographs on Indian populations have shown a prevalence of DLR in MFMs to be 13.3% 1 , 9.1% 49 , 7.67% 50 , 13% 51 , and 13.16% 52 . This finding corroborated our study results, which showed a prevalence rate of 5.5–7.8%, with a higher occurrence on the right side.…”

Section: Discussionmentioning

confidence: 99%

Distolingual root prevalence in mandibular first molar and complex root canal morphology in incisors: a CBCT analysis in Indian population

Sheth,

Banga,

Pawar

et al. 2024

Sci Rep

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Cone-beam computed tomography was used to understand the possible correlation between the prevalence of distolingual root (DLR) in permanent mandibular first molars (MFMs) and the associated complicated mandibular incisor’s root canal morphology (MIs) in an Indian population. A total of 400 scans were evaluated for MFMs and MIs. The prevalence of DLRs and root canal anatomy of MIs were assessed based on Vertucci’s classification, and then the sample were grouped according to age, sex and side. Statistical analysis was used to evaluate the possible correlation between the presence of DLRs in the first molar and root canal morphology of incisors. Chi square test was used to evaluate the correlation between the root canal configurations of MIs with the existence of DLRs in MFMs. There was no statistically significant difference between sexes or ages for the prevalence of DLRs in the first molars (p > 0.05), which was 6.62%, with the right side having a greater frequency of DLRs (7.8%) than the left (5.5%). Vertucci Type I canal configuration was most common for the mandibular central (66.75%) and lateral incisors (58.62%). Vertucci Type III was the most common complicated canal morphology, followed by Types V, II, and IV for MIs, with no statistically significant difference in the studied sample's age and sex. (p < 0.05). No association was observed between the presence of DLRs in first molars and complicated root canal configurations in MIs. Taken together, the possibility of complicated root canal configuration in MIs was lesser in the presence of DLRs in MFMs among the Indian population.

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Section: Discussionmentioning

confidence: 99%

Distolingual root prevalence in mandibular first molar and complex root canal morphology in incisors: a CBCT analysis in Indian population

Sheth,

Banga,

Pawar

et al. 2024

Sci Rep

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“…The incidence of various types of isthmuses reported in previous studies has demonstrated signi cant variability, indicating the in uence of factors such as population demographics, study methodology, and root-level considerations [18,23]. Current knowledge on the prevalence of isthmus and its variations in the Indian population is sparse, with few studies conducted using either destructive techniques or lowresolution imaging methods [24,27] .Thus, it is necessary to obtain a comprehensive understanding of this anatomic feature through non-destructive techniques with high resolution. To the best of our knowledge, this is the rst study to evaluate the prevalence of isthmus patterns in mandibular molars of the Indian population using micro-computed tomography.…”

Section: Introductionmentioning

confidence: 99%

Prevalence and Morphological Analysis of Isthmuses in Mandibular Molars of Indian Population: A Micro-Computed Tomographic Study

Lavanya

Tewari

Ali

et al. 2023

Preprint

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Objectives This study evaluated the prevalence, configurations, and correlation of isthmuses at coronal, middle, and apical root thirds in mandibular molars of the Indian population using micro-computed tomography. Materials & Methods 105 permanent mandibular molar teeth were scanned under micro-CT. The axial sections were analyzed at the coronal, middle, and apical thirds of the root for isthmus types and classified according to Hsu and Kim's classification. Descriptive statistics for each isthmus type were calculated. The correlations between the apical, middle, and coronal thirds of the root were determined using Pearson's correlation coefficient. Results Type IV isthmus was most common in the coronal third of mesial root of mandibular first molar (42.9%), while type V was prevalent in coronal third of mesial root of second molar (42.9%). Type I isthmus was found to be highly prevalent in the middle third (71.4%) and apical third (61.9%) of mesial roots of first molars, and in the middle third (71.4%) and apical third (42.9%) of mesial roots of second molars. Type V isthmus was the most prevalent in all the thirds of the distal roots of both first and second molars, ranging from 40–50%. Also, a strong correlation of 0.965 (P < 0.01) was found between the isthmuses in the apical and middle thirds of roots. Conclusion There are variations in the prevalence and type of isthmuses across different sections of the root, including the presence of atypical isthmuses. Micro-CT with high-resolution imaging and 3D reconstruction is crucial for investigating root canal morphology. Clinicians could benefit from considering demographic characteristics to better predict the presence of isthmus variations. Clinical relevance: The isthmus configurations and frequency differs at each section of mandibular teeth.

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Geographic patterns of the number of root canals in permanent molars. A Systematic Review

Chaple Gil,

Santiesteban Velázquez,

Afrashtehfar

2024

Preprint

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IntroductionThe variability in the distribution and number of root canals in human permanent molars makes endodontic therapy difficult if the prevalence of these patterns is not well known.ObjectiveTo synthesize scientific evidence on geographical variations in the number of root canals in permanent molars.MethodsA study conducted at the University of Medical Sciences of Havana analyzed the number of root canals in permanent molars. We searched for primary studies published in English, Spanish, or Portuguese that reported the number of canals in each tooth. We excluded clinical case studies, editorials, and studies that did not provide specific information on duct anatomy. A sensitivity analysis was performed to assess the impact of the methodological quality of the studies in the two groups. The findings were synthesized by grouping the studies by geographical region and describing the prevalence of different root canal configurations.ResultsData on permanent molars were collected from 93 studies that contributed 60402 molars studied. In Africa, the first and second upper molars commonly have three root canals (45.62% and 41.31%, respectively), similar to the first and second lower molars (59.79% and 67.55%, respectively). In America, the upper first molar most frequently has four root canals (56.66%). In Asia, it is more common to find that all molar groups have three canals (51.09%– 65.58%), except for the lower thirds, which may have two or three canals (42.88% and 57.12%). In Europe, all molars are frequently present with three canals, except for the lower third. In Oceania, the first upper molars commonly have six root canals (65%).ConclusionSignificant variations in the number of root canals in permanent molars according to geographic region were observed. Distinct patterns were observed in the Americas, Asia, Africa, Europe, and Oceania, with varying prevalences of different root canal configurations.

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Root and canal anatomy of mandibular first molar teeth of an Indian population

Cited by 3 publications

References 0 publications

Distolingual root prevalence in mandibular first molar and complex root canal morphology in incisors: a CBCT analysis in Indian population

Distolingual root prevalence in mandibular first molar and complex root canal morphology in incisors: a CBCT analysis in Indian population

Prevalence and Morphological Analysis of Isthmuses in Mandibular Molars of Indian Population: A Micro-Computed Tomographic Study

Geographic patterns of the number of root canals in permanent molars. A Systematic Review

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