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Middle mesial root canals in mandibular molars: prevalence and correlation to anatomical aspects based on CBCT imaging.
Barros-Costa, Matheus; Ferreira, Matheus Diniz; Costa, Felipe Ferreira; Freitas, Deborah Queiroz.
Afiliação
  • Barros-Costa M; Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil.
  • Ferreira MD; Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil.
  • Costa FF; Department of Oral Diagnosis, São Paulo Dental School, University of São Paulo (USP), São Paulo, Brazil.
  • Freitas DQ; Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Sao Paulo, Brazil.
Dentomaxillofac Radiol ; 51(8): 20220156, 2022 Dec 01.
Article em En | MEDLINE | ID: mdl-35926079
OBJECTIVES: To determine the prevalence of middle mesial root canal (MMC) in a Brazilian subpopulation, verify whether its presence is related to anatomical characteristics of the tooth, and propose a classification using cone-beam computed tomography (CBCT). METHODS: CBCT scans of 284 patients were evaluated by 2 radiologists to determine the presence of the MMC in mandibular first and second molars. Subsequently, the mesiodistal and buccolingual measurements of the mesial roots were obtained; the measurements between the root canals, and from MMC to the mesiobuccal canal and to the mesiolingual canal were also obtained. The MMC was classified according to its relationship with mesiobuccal and mesiolingual canals. The data were analyzed using χ2 and Fisher's exact test, multiple logistic regression analysis, Student's t-test, κ and intraclass correlation coefficient (p < 0.05). RESULTS: The intraexaminer agreements for the presence of the MMC and the measurements were considered almost perfect (0.953 and 0.999, respectively). Of 216 mandibular first molars, 11.1% had the MMC, and of 228 mandibular second molars, only 1.75% had the MMC. The presence was significant higher in the mandibular first molar (p < 0.0001). The buccolingual measurement and the measurement between mesiobuccal and mesiolingual canals were higher in teeth with MMC (p = 0.024 and p = 0.005, respectively). It was possible to classify the configuration of MCC into four types: independent (60.7%), confluent (14.3%), mesiolingual confluent (14.3%), and mesiobuccal confluent (10.7%). CONCLUSIONS: The prevalence of MMC is more pronounced in mandibular first molars and anatomical measurements, such as greater measurement between mesiobuccal and mesiolingual canals, may alert clinicians to its presence. It was found four types of configurations of MMC.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cavidade Pulpar / Tomografia Computadorizada de Feixe Cônico Espiral Tipo de estudo: Prevalence_studies / Risk_factors_studies Limite: Humans Idioma: En Revista: Dentomaxillofac Radiol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cavidade Pulpar / Tomografia Computadorizada de Feixe Cônico Espiral Tipo de estudo: Prevalence_studies / Risk_factors_studies Limite: Humans Idioma: En Revista: Dentomaxillofac Radiol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido