Retrospective study of root canal configurations of maxillary third molars in Central India population using cone beam computed tomography Part- I

ABSTRACT Objective: The aim of this study was to investigate the root and canal morphology of maxillary third molars in Central India population using cone-beam computed tomography (CBCT) analysis. Materials and Methods: CBCT images of 116 maxillary third molars were observed, and data regarding the number of roots, the number of canals, and Vertucci's Classification in each root was statistically evaluated. Results: Majority of Maxillary third molars had three roots (55.2%) and three canals (37.9%). Most MB root (43.8%), DB root (87.5%), and palatal root (100%) of maxillary third molars had Vertucci Type I. Mesiobuccal root of three-rooted maxillary third molars had Vertucci Type I (43.8%) and Type IV (40.6%) configuration. Overall prevalence of C-shaped canals in maxillary third molars was 3.4%. Conclusion: There was a high prevalence of three-rooted maxillary molars with three canals.

Download Full-text

Cone Beam Computed Tomography of Mesiobuccal Root and Canal Morphology of Maxillary Molars in Delhi-NCR Population- A Retrospective Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2021/49780.15364 ◽

2021 ◽

Author(s):

Jaynit Tandon ◽

Sonali Taneja ◽

Vidhi Kiran Bhalla ◽

Akshay Rathore

Keyword(s):

Computed Tomography ◽

Retrospective Study ◽

Cone Beam Computed Tomography ◽

Anatomic Variation ◽

Cone Beam ◽

Type I ◽

Type Ii ◽

Type Iv ◽

Maxillary Molars ◽

Canal Morphology

Introduction: Adequate knowledge of the anatomic variation and root canal morphology is paramount for long term endodontic success. The presence of two canals in Mesiobuccal (MB) root is commonly associated with maxillary molars in various populations. Aim: To retrospectively evaluate the prevalence of a second mesiobuccal canal (MB2) in maxillary first and second molars in Delhi-National Capital Region (NCR) population using Cone Beam Computed Tomography (CBCT) analysis. Materials and Methods: This retrospective study evaluated the records of complete maxillary CBCT scans of 204 maxillary first and second molars from January 2016 till May 2019 from different CBCT centres in Delhi-NCR region to determine the anatomy and morphology in June 2019. The prevalence of second MB2 canals was recorded and associated with age, gender and symmetry. The z-test for proportions was used to assess the differences among the subgroups. Results: The number of roots in 204 teeth in both maxillary molars were determined. The prevalence of 3-rooted configuration was 98.55% in maxillary first molars and 79.4% in maxillary 2nd molars. Also, in maxillary 2nd molars, 7.4% were single rooted and 13.2% had 2-rooted configuration. Three rooted configuration and variable canal number was commonly reported in maxillary molars. Prevalence of MB2 canal was 87.2% in maxillary 1st molars and 64.2% in maxillary 2nd molars. Also, the prevalence was 87.2% bilaterally in maxillary first molars and 65.7% on the right and 53.9% on the left in maxillary second molars respectively. Type IV canal configuration was most prevalent in 44.60% of maxillary first molars and type 1 configuration (35.78%) for the maxillary second molars. Conclusion: Prevalence of MB2 canals in maxillary first and second molars was found to be high in North Indian population and the clinician should suspect its presence in all cases. Prevalence of MB2 had bilaterally symmetrical distribution without any association with age or gender. The MB roots were more likely to exhibit type IV and type II canal configurations in maxillary first molars and type I and type II configurations in second molars.

Download Full-text

Endodontic Management of a Maxillary First Molar with Two Palatal Canals and a Single Buccal Canal: A Case Report

Case Reports in Dentistry ◽

10.1155/2012/389387 ◽

2012 ◽

Vol 2012 ◽

pp. 1-4 ◽

Cited By ~ 2

Author(s):

Leila Atash biz Yeganeh ◽

Mamak Adel ◽

Reza Vahedi ◽

Maryam Tofangchiha

Keyword(s):

Computed Tomography ◽

Treatment Outcome ◽

Case Report ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Root Canals ◽

Type Iv ◽

Maxillary Molars ◽

Root Canal Morphology ◽

Canal Morphology

Thorough knowledge of root canal morphology is essential for the endodontic therapy. There are rare variations in canal number and configuration in maxillary molars, which could affect treatment outcome. This paper presents the endodontic management of a maxillary first molar with two palatal canals in one root (Vertucci type IV) and a single buccal canal. In this paper cone-beam computed tomography was made to asses this morphology. This paper is intended to reinforce clinician’s awareness of the rare morphology of root canals.

Download Full-text

Agger Nasi Cells Versus Lacrimal Cells and Uncinate Bullae in Cone-Beam Computed Tomography

Ear Nose & Throat Journal ◽

10.1177/0145561319840836 ◽

2019 ◽

Vol 98 (6) ◽

pp. 334-339 ◽

Cited By ~ 5

Author(s):

Mugurel C. Rusu ◽

Cristina J. Sava ◽

Adrian C. Ilie ◽

Mihai Săndulescu ◽

Dănuţ Dincă

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Uncinate Process ◽

Cone Beam ◽

Type I ◽

3 Dimensional ◽

Multiplanar Reconstructions ◽

Type Iv ◽

Frontal Process ◽

Type V

The maxillary bone’s frontal process, lacrimal bone, and ethmoidal labyrinth’s uncinate process can each harbor pneumatizations, referred to as agger nasi cells (ANCs), lacrimal cells (LCs), and uncinate bullae (UBs), respectively. Different studies have failed to differentiate ANCs from LCs. We aimed at studying these 3 anatomic sites to establish the anatomical patterns that could be encountered. We performed a retrospective study on cone-beam computed tomography scans of 36 patients (72 sides); the anatomic identification was supported by bidimensional multiplanar reconstructions (MPRs) in all 3 planes and 3-dimensional volume renderings. We established 6 patterns of pneumatization as follows: (1) type I: single LCs (47%), (2) type II: distinctive adjacent LCs and ANCs (8%), (3) type III: LCs expanded as UBs (6%), (4) type IV: ANCs adjacent to LCs expanded with UBs (1%), (5) type V: ANCs expanded as LCs (27%), and (6) type VI: ANCs expanded as LCs and further expanded as UBs (11%). In a type I pattern case, we found a cell-in-cell aspect on sagittal MPRs, which was further demonstrated as being an anterolateral recess of the middle nasal meatus projected in front of an LC. Such an “agger nasi recess” of the middle meatus was not previously described. For an accurate anatomical diagnosis, computed tomography studies should use complementary MPRs in all anatomical planes, as well as 3-dimensional models, to avoid confusing ANCs with LCs and better document the drainage pathways.

Download Full-text

Evaluation of Root Canal Configuration of Mandibular First Molars in a Palestinian Population by Using Cone-Beam Computed Tomography: An Ex Vivo Study

International Scholarly Research Notices ◽

10.1155/2014/583621 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7

Author(s):

Raed Hakam Mukhaimer

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Root Canal ◽

Ex Vivo ◽

Cone Beam ◽

Type I ◽

Type Ii ◽

Type Iv ◽

Reported Data ◽

Palestinian Population

Aim. The purpose of this study was to investigate the number of canals and variations in root canal configuration in the mandibular permanent first molar teeth of a Palestinian population using cone-beam computed tomography (CBCT). Methods. A sample of 320 extracted double-rooted mandibular permanent first molars from Palestinian population was collected for this study and scanned with CBCT scanner. The following observations were made: number of root canals per root and canal configuration in each root based on Vertucci’s classification. Results. Of the 320 mandibular first molars analyzed, 174 (54.4%) had three canals, 132 teeth (41.3%) had four canals, and only four teeth had two canals. The most common canal configuration in the mesial roots was Vertucci type IV (53.8%) followed by type II (38.8%). In the distal roots, the most prevalent canal configuration was Vertucci type I (57.5%) followed by type II ( 22.5%) and type III (10.6%). Conclusion. Our results showed that the number of canals and canal configuration in Palestinian population were consistent with previously reported data. The present study also indicates that CBCT is helpful as a diagnostic tool for the investigation of root canal morphology.

Download Full-text

Anatomical Evaluation of Mandibular Molars in a Saudi Population: An In Vivo Cone-Beam Computed Tomography Study

International Journal of Dentistry ◽

10.1155/2021/5594464 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Mohammed Mashyakhy ◽

Ahmad Jabali ◽

Fatimah Saleem Alabsi ◽

Abdulaziz AbuMelha ◽

Mazen Alkahtany ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Type I ◽

Saudi Population ◽

Significance Level ◽

Mandibular Molars ◽

Type Iv ◽

The Right

Objective. This study assessed the canal configuration of mandibular molars according to Vertucci’s classification of a Saudi population using cone-beam computed tomography (CBCT). Methods. A total of 290 first and 367 second mandibular molars were analyzed. The CBCT images were evaluated in three sections to inspect the number of roots and canals and canal system. The data are presented as frequencies and percentages. The chi-squared test was used to assess differences between both sides. SPSS was used for analysis, with a significance level of α ≤ 0.05. Results. Among the first molars, 95.4% of the teeth had two roots, and 64.5% had three canals. Approximately 57.9% showed Vertucci type IV mesial roots. Between the second molars, 89.6% of teeth had two roots and 80.4% had three canals. The frequency of Vertucci type IV (39.4%) was the highest in mesial roots. The first molars showed a high prevalence of 3-rooted teeth (5.5%). Both the right and left sides showed teeth with similar external and internal anatomy p < 0.05 . Conclusion. Most of the mandibular first and second molars had two roots and three canals. In the first mandibular molars, similar to the second mandibular molars, the majority of the mesial canals had Vertucci type IV, while the distal canals had Vertucci type I.

Download Full-text

Evaluation of the anatomical relationship between mandibular third molars and the mandibular canal using Cone Beam Computed Tomography

Research Society and Development ◽

10.33448/rsd-v10i6.15659 ◽

2021 ◽

Vol 10 (6) ◽

pp. e55710615659

Author(s):

Magno Vincíus Silva Batista ◽

Joel Motta Junior

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Statistical Significance ◽

Mandibular Canal ◽

Cone Beam ◽

Type I ◽

Third Molars ◽

Virtual Planning ◽

The Third ◽

Anatomical Relationship

Objective: This study aims to establish the anatomical relationship between the mandibular canal and the third molars, based on analysis by Cone Beam Computed Tomography. Methodology: Computed Tomography analysis of 67 third molars was performed using Blue Sky Plan 4 virtual planning software. The anatomical dispositions of the third molars and mandibular canal were evaluated, as well as the factors that favor the contact between these structures. Result: There was a prevalence of 76.1% for biradicular third molars, 52.2% for class 1 and 71.6% class A. Vertical and mesioangulated teeth had a higher prevalence, with 38.8% and 35.8% respectively. Sicher and Tandler's classification presented 41.8% of the canals as type I, while in the buccal-lingual positioning, 89.5% of the canals were located through the buccal. 44.8% of the teeth had contact with the canal and the factors with statistical significance were: female gender (p = 0.019), number of roots (p = 0.019), class 3 (p = 0.004) and C (p = 0.012) teeth and lingual positioning of the mandibular canal (p = 0.016). About the anatomical delimitations, the mean diameter of the canal was 3.14 mm and the distances related to the dental roots, lingual, buccal and inferior cortical bony were 2.77, 3.53, 4.56 and 8.32 milimeters, respectively. Conclusion: Therefore, the assessment of third molars by computed tomography is essential during preoperative planning, as it identifies anatomical relationships that favor contact between the tooth and the mandibular canal and helps to reduce the incidence of sensorineural disorders.

Download Full-text

Evaluation of number of roots and root anatomy of permanent mandibular third molars in a Korean population, using cone-beam computed tomography

European Journal of Dentistry ◽

10.4103/1305-7456.115413 ◽

2013 ◽

Vol 07 (03) ◽

pp. 296-301 ◽

Cited By ~ 4

Author(s):

Jun-Beom Park ◽

NamRyang Kim ◽

Seojin Park ◽

Youngkyung Ko

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Anatomical Variations ◽

Root Anatomy ◽

Korean Population ◽

Cone Beam ◽

Third Molars ◽

Significant Difference ◽

High Prevalence ◽

Mandibular Third Molars

ABSTRACT Objective: The purpose of this study was to investigate the morphology and number of roots of Korean mandibular third molars, and to evaluate the prevalence of C-shaped, two-rooted, and three-rooted mandibular third molars using cone-beam computed tomography (CBCT). Materials and Methods: Serial axial CBCT images of the mandibles were gathered from 137 Korean patients. The total number of roots in the mandibular third molars of these patients was measured, and both the incidence and the correlations between left- and right-side occurrences, as well as between males and females, were analyzed. Results: Most of the mandibular third molars either had two roots (56.5%) or one root (37.9%). There was no significant difference regarding the incidence of the different types of roots according to gender (female versus male) or topology (right versus left side). A higher percentage (80.5%) of the patients had similar root morphology on both sides. Conclusion: The morphology and number of 214 mandibular third molars were examined using CBCT. There was a high prevalence of two-rooted mandibular and one-rooted mandibular third molars from this Korean population. Even though the anatomical variations in the mandibular third molars may not be high, these data regarding the occurrence and morphology of the roots will provide useful information to dentists performing these procedures.

Download Full-text

Cone-beam computed tomography study of root number and root canal configuration of premolars in Serbian population

Medicinski pregled ◽

10.2298/mpns1804100p ◽

2018 ◽

Vol 71 (3-4) ◽

pp. 100-107 ◽

Cited By ~ 1

Author(s):

Milica Popovic ◽

Milos Papic ◽

Aleksandar Acovic ◽

Suzana Zivanovic ◽

Tatjana Kanjevac

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Root Canal ◽

Statistical Significance ◽

Preoperative Assessment ◽

Cone Beam ◽

Type I ◽

Root Canals ◽

Type Iv ◽

Computed Tomography Images

Introduction. The aim of this study was to establish the number of roots and present the root canal configuration in the maxillary and mandibular premolar teeth, and evaluate the relations among these characteristics with gender and teeth position in the Serbian population using cone-beam computed tomography. Material and Methods. Cone-beam computed tomography images of 570 teeth of 150 patients were evaluated. Teeth were classified into the following groups: maxillary first premolars, maxillary second premolars, mandibular first premolars and mandibular second premolars, and the number of roots and root canals per tooth, whereas root canal configurations were examined along with the tooth position and patients? gender. The root canal configuration was classified using Vertucci?s classification. Statistical significance was obtained using Chi square test. Results. In maxillary first premolars, two roots (53.5%) and two root canals (84.5%) were the most prevalent, as well as type IV configuration (58.9%). In maxillary second premolars, most teeth had one root (88.1%) and one root canal (59.6%). In regard to gender, complex configurations with multiple canals were more prevalent in males. Higher incidence of type IV configuration in maxillary first premolars was present on the right side of the jaw (70.2%). Most mandibular first premolars had one root (98.5%). In mandibular second premolar, all teeth had one root and most had type I configuration (96.2%). Males showed higher incidence of two canals in mandibular first premolars. Conclusion. Cone-beam computed tomography is a useful tool for obtaining valuable information on root canal morphology of premolar teeth. Patient?s gender should be considered when performing the preoperative assessment of endodontic treatment.

Download Full-text

Root Canal Morphology of Maxillary First and Second Molars in a Qatari Population: A Cone-Beam Computed Tomography Study

European Dental Research and Biomaterials Journal ◽

10.1055/s-0041-1731625 ◽

2021 ◽

Vol 2 (01) ◽

pp. 34-38

Author(s):

Maryam Mohammed Al-Obaid ◽

Fatima Abdullah Al-Sheeb

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Root Canal ◽

Bilateral Symmetry ◽

Cone Beam ◽

Type I ◽

Type Ii ◽

Second Molar ◽

Single Root ◽

Type Iv

Abstract Objective The purpose of this study was to evaluate the number of roots and canal configuration of maxillary first and second molars in Qatari population. Materials and Methods A total of 544 cone-beam computed tomography (CBCT) records of Qatari patients were included in this study. The CBCT images were reviewed by two endodontists. The age, sex, bilateral symmetry, root number, and canal configuration according to Vertucci were tabulated. Results About 97.5% maxillary first molars had three roots and 2.5% had two roots. Maxillary second molar showed 88.2% three roots, 7.3% two roots, 3.3% single root, and 1.2% four roots. For maxillary first molars, the most common Vertucci classifications for the mesiobuccal root were type IV (2-2, 35.9%) and type II (2-1, 21.1%). For maxillary second molars, the most common Vertucci classifications for the mesiobuccal root were type IV (2-2, 27%), type III (1-2-1, 21.3%), type I (1, 19.6%), and type II (2-1, 18.9%). In maxillary first molar, 53.1% right is different from the left and in maxillary second molars, 60.2% right is different from the left. Conclusions In Qatari population, three roots are common in maxillary molars. Mesiobuccal root of maxillary first molars is predominant with Vertucci type IV (2-2) and type II (2-1). Maxillary second molars showed variable Vertucci classification. High bilateral asymmetry was found in canal configuration of the same individuals that should be considered during root canal treatment of two opposite molars.

Download Full-text