Influence of Demographic Factors on the Prevalence of a Second Root Canal in Mandibular Anterior Teeth – A Systematic Review and Meta-Analysis of Cross-Sectional Studies Using Cone Beam Computed Tomography

ABSTRACT Objective: The aim of this study was to determine the root and canal morphology of the maxillary and mandibular anterior teeth in a Turkish population by analyzing cone-beam computed tomography (CBCT) images. Materials and Methods: CBCT images of 417 females and 410 males with a mean age of ranging from 14 to 70 years were examined in this study. A total of 1453 maxillary central incisors, 1504 maxillary lateral incisors, 1523 maxillary canines, 1582 mandibular central incisors, 1603 mandibular lateral incisors, and 1604 mandibular canines were analyzed. The number of root canals and the canal configurations were investigated and then were classified according to Vertucci's classification. The data were analyzed with the Pearson Chi-square test. Results: The Type 1 canal configuration was most prevalent in the maxillary anterior teeth (96.8-99.7%). The Types 2, 3, 4, and 5 canal configurations were observed within the range of 0-1.3%, 0-0.8%, 0-0.7%, and 0-1.8%, respectively. In the mandibular anterior teeth, the Type 1 canal configuration was most prevalent (77-95%). The Types 2, 3, 4, and 5 canal configurations were observed within a range of 0.2-2.7%, 0.2-1.6%, 0.9-5.9%, and 1.8-14.4%, respectively. The prevalence of two canals was higher in males than in females both in the maxillary and mandibular anterior teeth (P < 0.05). Conclusions: Type 1 was the most prevalent canal configuration of maxillary and mandibular anterior teeth in the Turkish population. Type 5 was the most frequently observed canal configuration of the two canalled teeth. The incidence of root canal numbers and configurations differed with sex.

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Evaluation of orthodontically induced external root resorption following orthodontic treatment using cone beam computed tomography (CBCT): a systematic review and meta-analysis

European Journal of Orthodontics ◽

10.1093/ejo/cjy027 ◽

2018 ◽

Vol 41 (1) ◽

pp. 67-79 ◽

Cited By ~ 10

Author(s):

Aikaterini Samandara ◽

Spyridon N Papageorgiou ◽

Ioulia Ioannidou-Marathiotou ◽

Smaragda Kavvadia-Tsatala ◽

Moschos A Papadopoulos

Keyword(s):

Computed Tomography ◽

Systematic Review ◽

Cone Beam Computed Tomography ◽

Orthodontic Treatment ◽

Root Resorption ◽

Meta Analysis ◽

Cone Beam ◽

External Root Resorption

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Cone beam computed tomography for the diagnosis of vertical root fractures: a systematic review of the literature and meta-analysis

Oral Surgery Oral Medicine Oral Pathology and Oral Radiology ◽

10.1016/j.oooo.2014.07.014 ◽

2014 ◽

Vol 118 (5) ◽

pp. 593-602 ◽

Cited By ~ 32

Author(s):

Stefano Corbella ◽

Massimo Del Fabbro ◽

Aviad Tamse ◽

Eyal Rosen ◽

Igor Tsesis ◽

...

Keyword(s):

Computed Tomography ◽

Systematic Review ◽

Cone Beam Computed Tomography ◽

Meta Analysis ◽

Cone Beam ◽

Review Of The Literature ◽

Root Fractures

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Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2021/49776.15410 ◽

2021 ◽

Author(s):

Cristiane Martins Rodrigues Bernardes ◽

Luiz Eduardo Gregoris Rabelo ◽

Cyntia Rodrigues DE Araújo Estrela ◽

Orlando Aguirre Guedes ◽

Brunno Santos DE Freitas Silva ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Root Morphology ◽

Cross Sectional Study ◽

Cone Beam ◽

P Value ◽

Sectional Study ◽

Cross Sectional ◽

Anterior Teeth ◽

Maxillary Incisors

Introduction: The prevalence of Apical Root Resorption (ARR) after orthodontic treatment is high. It is associated with several factors, such as tooth group, type and duration of treatment, applied force and root morphology. Aim: To evaluate the apical root morphology of maxillary incisors in a Brazilian subpopulation using Cone Beam Computed Tomography (CBCT) images. Materials and Methods: In this retrospective and cross-sectional study, 400 maxillary incisors from 167 patients registered in the data base of Dental Radiology Clinics between January 2012 and April 2017 were analysed. The apical root configuration was verified by navigating 0.1 mm/0.1 mm, in the three planes, axial, coronal, and sagittal sections on CBCT images, from the root canal entrance to the apical foramen, as well as from the apical direction to the crown. The standard reference for apical root form corresponded to the long axis of the tooth. The root forms and their frequency were characterised according to the classification proposed by Levander and Malmgren (1988). The qualitative variables were analysed by the Chi-square test. The level of significance was p-value <0.05. Results: A total of 400 maxillary anterior teeth (central and lateral incisors; n=200 each) from 167 patients (101 women; mean age was 41.8±16.20 years) were analysed. The most common apical root form presented in the central incisors was the blunt root {99 (49.5%)}, followed by pipette-shaped root {69 (34.5%)}. The less frequent was the short root {13 (6.5%)} (p-value <0.001). In the lateral incisors, the highest frequency presented was lacerated root {111 (55.5%)}, followed by blunt root {47 (23.5%)}, and pipette- shaped root {37 (18.5%)} (p-value <0.001). Conclusion: Maxillary central incisors had a higher frequency of rhomboid (blunt) root morphology, while lateral incisors had a higher frequency of curved (lacerated) root form.

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Prevalence of root canal system configurations in the brazilian population analyzed by cone-beam computed tomography – a systematic review

Revista Portuguesa de Estomatologia Medicina Dentária e Cirurgia Maxilofacial ◽

10.24873/j.rpemd.2021.03.829 ◽

2021 ◽

Vol 62 (2) ◽

Author(s):

Emmanuel Silva ◽

◽

Marina Prado ◽

Marco Duarte ◽

Marco Versiani ◽

...

Keyword(s):

Computed Tomography ◽

Systematic Review ◽

Cone Beam Computed Tomography ◽

Root Canal ◽

Cone Beam ◽

Free Text ◽

Prevalence Studies ◽

Root Canals ◽

Mesh Terms ◽

Wide Range

Objectives: This study performed a systematic review of anatomy prevalence studies using cone-beam computed tomography to comprehend the root and root canal configuration types in Brazilian sub-populations. Methods: This systematic review followed PRISMA’s statements. Four electronic databases (PubMed, ScienceDirect, Lilacs, and Cochrane Collaboration) were accessed using MeSH terms and free-text keywords. The studies were selected according to predefined criteria. References of the collected studies, three peer-reviewed endodontic journals, and two peer-reviewed evidence-based dentistry journals were hand searched. The authors were contacted for additional information, if necessary. Eligible studies were submitted to a scientific merit assessment by two evaluators independently, who reached a final consensus for each study score using the Joanna Briggs Institute Critical Appraisal tool for prevalence studies. Results: A total of 2266 studies were identified. After analysis, 20 full-text articles were accessed for eligibility and 17 were included for qualitative synthesis. A high prevalence of mandibular incisors presenting two root canals was noted (~35.0% – 40.0). Moreover, a high proportion of two-rooted (17.0% – 28.4%) and two root canals (50.1% – 75.0%) morphologies were identified in maxillary second premolars. A wide range and a high percentage of a second mesiobuccal canal were detected for both maxillary first (37.1% – 88.5%) and second molars (21.8% – 83.4%). A second root canal prevalence ranging from 12.4% to 23.4% was observed in the distal root of mandibular first molars. Conclusions: In conclusion, different Brazilian sub-populations may present divergent characteristics regarding the root and root canal configurations. Clinicians should be aware of these variations for proper planning of endodontic treatment.

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