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Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation

BACKGROUND: To determine the frequency of missed second mesiobuccal canals (MB2) and apical periodontitis in maxillary molars of a Chilean subpopulation using cone beam computed tomography (CBCT). MATERIAL AND METHODS: Two previously calibrated operators evaluated CBCTs with a total of 588 upper mol...

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Autores principales: Peña-Bengoa, Fernando, Cáceres, Carolina, Niklander, Sven-Eric, Meléndez, Patricio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medicina Oral S.L. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10062462/
https://www.ncbi.nlm.nih.gov/pubmed/37008247
http://dx.doi.org/10.4317/jced.60156
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author Peña-Bengoa, Fernando
Cáceres, Carolina
Niklander, Sven-Eric
Meléndez, Patricio
author_facet Peña-Bengoa, Fernando
Cáceres, Carolina
Niklander, Sven-Eric
Meléndez, Patricio
author_sort Peña-Bengoa, Fernando
collection PubMed
description BACKGROUND: To determine the frequency of missed second mesiobuccal canals (MB2) and apical periodontitis in maxillary molars of a Chilean subpopulation using cone beam computed tomography (CBCT). MATERIAL AND METHODS: Two previously calibrated operators evaluated CBCTs with a total of 588 upper molars, of which 179 endodontically treated molars were selected. Axial tomographic slices were used to study the frequency and association between the presence of apical periodontitis and untreated MB2 canals. RESULTS: Of the 179 endodontically treated molars, 45.78% (84) presented MB2 missed canals. Of the upper molars that presented MB2 missed canals, 70% were associated with apical periodontitis, which was statistically significant (p< 0.0001). Sixty-two corresponded to first molars (74%) and 22 to second molars (26%). Of the first molars, 34 (54.8%) presented with apical periodontitis and MB2 missed canals (p< 0.0001), while 12 (54.4%) of the second molars presented this association (p = 0.081). CONCLUSIONS: MB2 missed canals are associated with a high degree of apical periodontitis and may be an important predictor of endodontic prognosis of upper molars. Key words:Endodontics, apical periodontitis, cone beam computed tomography, missed canals, maxillary molars.
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spelling pubmed-100624622023-03-31 Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation Peña-Bengoa, Fernando Cáceres, Carolina Niklander, Sven-Eric Meléndez, Patricio J Clin Exp Dent Research BACKGROUND: To determine the frequency of missed second mesiobuccal canals (MB2) and apical periodontitis in maxillary molars of a Chilean subpopulation using cone beam computed tomography (CBCT). MATERIAL AND METHODS: Two previously calibrated operators evaluated CBCTs with a total of 588 upper molars, of which 179 endodontically treated molars were selected. Axial tomographic slices were used to study the frequency and association between the presence of apical periodontitis and untreated MB2 canals. RESULTS: Of the 179 endodontically treated molars, 45.78% (84) presented MB2 missed canals. Of the upper molars that presented MB2 missed canals, 70% were associated with apical periodontitis, which was statistically significant (p< 0.0001). Sixty-two corresponded to first molars (74%) and 22 to second molars (26%). Of the first molars, 34 (54.8%) presented with apical periodontitis and MB2 missed canals (p< 0.0001), while 12 (54.4%) of the second molars presented this association (p = 0.081). CONCLUSIONS: MB2 missed canals are associated with a high degree of apical periodontitis and may be an important predictor of endodontic prognosis of upper molars. Key words:Endodontics, apical periodontitis, cone beam computed tomography, missed canals, maxillary molars. Medicina Oral S.L. 2023-03-01 /pmc/articles/PMC10062462/ /pubmed/37008247 http://dx.doi.org/10.4317/jced.60156 Text en Copyright: © 2023 Medicina Oral S.L. https://creativecommons.org/licenses/by/2.5/This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Peña-Bengoa, Fernando
Cáceres, Carolina
Niklander, Sven-Eric
Meléndez, Patricio
Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation
title Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation
title_full Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation
title_fullStr Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation
title_full_unstemmed Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation
title_short Association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a Chilean subpopulation
title_sort association between second mesiobuccal missed canals and apical periodontitis in maxillary molars of a chilean subpopulation
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10062462/
https://www.ncbi.nlm.nih.gov/pubmed/37008247
http://dx.doi.org/10.4317/jced.60156
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