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Root Anatomy and Canal Configuration of Maxillary Molars in a Brazilian Subpopulation: A 125-μm Cone-Beam Computed Tomographic Study.
Eur J Dent 2019; 13(1):82-87EJ

Abstract

OBJECTIVE

Knowledge of internal anatomy of the teeth is of great importance in endodontics, leading to success in root canal therapy (RCT). The aim of this study was to assess the root anatomy and canal configuration of maxillary molars in a Brazilian subpopulation using tomographic images using a voxel size of 125 μm.

MATERIALS AND METHODS

This in vivo retrospective study assessed 651 cone-beam computed tomographic scans from 328 maxillary first molars and 323 maxillary second molars. The images were assessed by two endodontists and an oral radiologist. Only permanent molars with fully developed roots and with no signs of RCT were included.

RESULTS

Maxillary first and second molars presented three separated roots in 99.39 and 90.09% of the cases, respectively. The presence of mesiolingual canals in the mesiobuccal roots was 64.22% for maxillary first molars and 33.56% for maxillary second molars. Distobuccal canals in the maxillary first and second molars presented Vertucci's Type I configuration in 99.39 and 99.66%, respectively, and palatal canals in the maxillary first and second molars presented Vertucci's Type I configuration in 99.69 and 99.68%, respectively. Maxillary second molars were more subjected to anatomical variations than first molars. Female patients presented higher prevalence of mesiolingual canals in the maxillary second molars.

CONCLUSIONS

The most prevalent morphology in the maxillary first and second molars was three root canals. The presence of only one or two roots is more likely to occur in the maxillary second molars than in the maxillary first molars. Mesiolingual canals in mesiobuccal roots are more frequent in the maxillary first molars than in the maxillary second molars, and the occurrence of two distobuccal or two palatal canals is rare.

Authors+Show Affiliations

Department of Endodontics, São Leopoldo Mandic School of Dentistry, Campinas, SP, Brazil.Department of Endodontics, São Leopoldo Mandic School of Dentistry, Campinas, SP, Brazil.Department of Endodontics, State University of Campinas, Piracicaba, SP, Brazil.Department of Endodontics, São Leopoldo Mandic School of Dentistry, Campinas, SP, Brazil.Department of Endodontics, State University of Campinas, Piracicaba, SP, Brazil.Department of Endodontics, State University of Campinas, Piracicaba, SP, Brazil.Department of Endodontics, São Leopoldo Mandic School of Dentistry, Campinas, SP, Brazil.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31170761

Citation

Mohara, Nelson Tsutomu, et al. "Root Anatomy and Canal Configuration of Maxillary Molars in a Brazilian Subpopulation: a 125-μm Cone-Beam Computed Tomographic Study." European Journal of Dentistry, vol. 13, no. 1, 2019, pp. 82-87.
Mohara NT, Coelho MS, de Queiroz NV, et al. Root Anatomy and Canal Configuration of Maxillary Molars in a Brazilian Subpopulation: A 125-μm Cone-Beam Computed Tomographic Study. Eur J Dent. 2019;13(1):82-87.
Mohara, N. T., Coelho, M. S., de Queiroz, N. V., Borreau, M. L. S., Nishioka, M. M., de Jesus Soares, A., & Frozoni, M. (2019). Root Anatomy and Canal Configuration of Maxillary Molars in a Brazilian Subpopulation: A 125-μm Cone-Beam Computed Tomographic Study. European Journal of Dentistry, 13(1), pp. 82-87. doi:10.1055/s-0039-1688736.
Mohara NT, et al. Root Anatomy and Canal Configuration of Maxillary Molars in a Brazilian Subpopulation: a 125-μm Cone-Beam Computed Tomographic Study. Eur J Dent. 2019;13(1):82-87. PubMed PMID: 31170761.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Root Anatomy and Canal Configuration of Maxillary Molars in a Brazilian Subpopulation: A 125-μm Cone-Beam Computed Tomographic Study. AU - Mohara,Nelson Tsutomu, AU - Coelho,Marcelo Santos, AU - de Queiroz,Nathalia Valle, AU - Borreau,Marcelle Louise Sposito, AU - Nishioka,Marko Massao, AU - de Jesus Soares,Adriana, AU - Frozoni,Marcos, Y1 - 2019/06/06/ PY - 2019/6/7/pubmed PY - 2019/6/7/medline PY - 2019/6/7/entrez SP - 82 EP - 87 JF - European journal of dentistry JO - Eur J Dent VL - 13 IS - 1 N2 - OBJECTIVE: Knowledge of internal anatomy of the teeth is of great importance in endodontics, leading to success in root canal therapy (RCT). The aim of this study was to assess the root anatomy and canal configuration of maxillary molars in a Brazilian subpopulation using tomographic images using a voxel size of 125 μm. MATERIALS AND METHODS: This in vivo retrospective study assessed 651 cone-beam computed tomographic scans from 328 maxillary first molars and 323 maxillary second molars. The images were assessed by two endodontists and an oral radiologist. Only permanent molars with fully developed roots and with no signs of RCT were included. RESULTS: Maxillary first and second molars presented three separated roots in 99.39 and 90.09% of the cases, respectively. The presence of mesiolingual canals in the mesiobuccal roots was 64.22% for maxillary first molars and 33.56% for maxillary second molars. Distobuccal canals in the maxillary first and second molars presented Vertucci's Type I configuration in 99.39 and 99.66%, respectively, and palatal canals in the maxillary first and second molars presented Vertucci's Type I configuration in 99.69 and 99.68%, respectively. Maxillary second molars were more subjected to anatomical variations than first molars. Female patients presented higher prevalence of mesiolingual canals in the maxillary second molars. CONCLUSIONS: The most prevalent morphology in the maxillary first and second molars was three root canals. The presence of only one or two roots is more likely to occur in the maxillary second molars than in the maxillary first molars. Mesiolingual canals in mesiobuccal roots are more frequent in the maxillary first molars than in the maxillary second molars, and the occurrence of two distobuccal or two palatal canals is rare. SN - 1305-7456 UR - https://www.unboundmedicine.com/medline/citation/31170761/Root_Anatomy_and_Canal_Configuration_of_Maxillary_Molars_in_a_Brazilian_Subpopulation:_A_125-μm_Cone-Beam_Computed_Tomographic_Study DB - PRIME DP - Unbound Medicine ER -