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Aplicação clínica da classificação de Ahmed e Vertucci em segundos molares mandibulares na clínica dentária Egas Moniz
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Abstract(s)
Objetivo: Avaliar e comparar a anatomia dentária radicular interna e externa dos segundos molares mandibulares segundo a classificação de Vertucci e de Ahmed com recurso a CBCTs.
Materiais e Métodos: A amostra consistiu em 153 Tomografias Computorizadas de Feixe Cónico (CBCTs), num total de 251 segundos molares mandibulares realizados na Clínica Dentária Egas Moniz no período compreendido entre 1 de janeiro de 2020 a 31 de janeiro de 2022. As imagens radiográficas foram analisadas através do software Sidexis 4.
Resultados: Dos 251 segundos molares mandibulares analisados 242, foram classificados segundo a classificação de Vertucci. Apresentaram um total de 7 configurações diferentes, raiz mesial do tipo II (61,80%) e na raiz distal tipo I (87,12%), unirradiculares tipo I (44,4%). A distribuição por género apresentou os seguintes resultados mais prevalentes: género masculino na raiz mesial do tipo II (33,47%), raiz distal género feminino (40,63%), unirradiculares tipo I género feminino (33,33%). Segundo a classificação de Ahmed foram analisados e classificados 251 segundos molares mandibulares que apresentaram um total de 31 configurações diferentes com maior frequência do código 2MM M2-1D1 (52,58%) e uma percentagem mais elevada no género masculino (28,68%). Nas anomalias, as mais frequentes foram os radix RP (5,57%), com percentagem mais elevada no género feminino (5,16%). Os canais em forma de “C” com fusão radicular (5,19%), foram mais frequentes no género masculino (0,79%); a fusão radicular foi encontrada apenas no género feminino (2%). Nas anomalias de um modo geral, o género mais prevalente foi o feminino (9,16%). Dos dentes incluídos na amostra, os mais prevalentes com duas raízes (87,25%) foram do género masculino (44,22%); os dentes com quatro raízes (1,19%) foram observados apenas no género feminino. Nos dentes com três canais (80,87%), os mais frequentes foram observados no género masculino (41,03%). Os dentes menos com cinco canais foram os menos frequentes (1,59%) e em ambos os géneros. Conclusões: A anatomia dentária dos segundos molares mandibulares é muito variada, com os códigos 2MM M2-1D1, (CsCII) 1MM M/D1, (RPI) 3MM M2 MV1 D1 de Ahmed sendo as mais frequentes e da tipologia tipo II e tipo I de Vertucci, em sua maioria. Os dentes analisados apresentavam uma, duas, três e quatro raízes, sendo a grande maioria com duas raízes, com dois canais na raiz mesial e um na raiz distal
Objective: To evaluate and compare the internal and external root dental anatomy of mandibular second molars according to the Vertucci and Ahmed classification using CBCTs. Materials and Methods: The sample consisted of 153 Cone-Beam Computed Tomography (CBCT) scans of a total of 251 mandibular second molars carried out at the Egas Moniz Dental Clinic between 1 January 2020 and 31 January 2022. The radiographic images were analysed using Sidexis 4 software. Results: 242 of the 251 mandibular second molars examined were categorized according to Vertucci's classification, yielding 7 distinct configurations. The prevalence of type II mesial root (61.80%) and type I distal root (87.12%) was noted, along with type I uniradicular (44.4%). Analysis of gender-based distribution revealed that type II mesial root was most prevalent in males (33.47%), whereas type II distal root (40.63%) and type I uniradicular (33.33%) were most common among females. Ahmed's classification was used to examine and categorise 251 second molars in the mandible. The study revealed 31 distinct configurations, with the most common being code 2MM M2-1D1 (52.58%), which was found more frequently in males (28.68%). The most prevalent anomalies were radix paramolaris (5.57%), with a higher occurrence in females (5.16%). C-shaped canals with root fusion (5.19%) were more common in males (0.79%) and root fusion was solely present in females (2%). Regarding anomalies in general, females constituted the predominant gender (9.16%). In conclusion, these findings suggest a distinct correlation between gender and dental anatomical features. Teeth with two roots (87.25%) were the most frequent among males (44.22%), while teeth with four roots were only observed in females (1.19%). Teeth with three canals (80.87%) were more frequent in males (41.03%), whereas teeth with five canals were the least common for both genders (1.59%). Conclusions: The morphology of mandibular second molars display considerable variation. The most common coding systems used to classify this variation are Ahmed's codes 2MM M2-1D1, (CsCII) 1MM M/D1, and (RPI) 3MM M2 MV1 D1. Additionally, Vertucci's type II and type I are prevalent. The number of roots found in the teeth studied ranged from one to four, with the majority possessing two roots, consisting of two canals in the mesial root and one in the distal root.
Objective: To evaluate and compare the internal and external root dental anatomy of mandibular second molars according to the Vertucci and Ahmed classification using CBCTs. Materials and Methods: The sample consisted of 153 Cone-Beam Computed Tomography (CBCT) scans of a total of 251 mandibular second molars carried out at the Egas Moniz Dental Clinic between 1 January 2020 and 31 January 2022. The radiographic images were analysed using Sidexis 4 software. Results: 242 of the 251 mandibular second molars examined were categorized according to Vertucci's classification, yielding 7 distinct configurations. The prevalence of type II mesial root (61.80%) and type I distal root (87.12%) was noted, along with type I uniradicular (44.4%). Analysis of gender-based distribution revealed that type II mesial root was most prevalent in males (33.47%), whereas type II distal root (40.63%) and type I uniradicular (33.33%) were most common among females. Ahmed's classification was used to examine and categorise 251 second molars in the mandible. The study revealed 31 distinct configurations, with the most common being code 2MM M2-1D1 (52.58%), which was found more frequently in males (28.68%). The most prevalent anomalies were radix paramolaris (5.57%), with a higher occurrence in females (5.16%). C-shaped canals with root fusion (5.19%) were more common in males (0.79%) and root fusion was solely present in females (2%). Regarding anomalies in general, females constituted the predominant gender (9.16%). In conclusion, these findings suggest a distinct correlation between gender and dental anatomical features. Teeth with two roots (87.25%) were the most frequent among males (44.22%), while teeth with four roots were only observed in females (1.19%). Teeth with three canals (80.87%) were more frequent in males (41.03%), whereas teeth with five canals were the least common for both genders (1.59%). Conclusions: The morphology of mandibular second molars display considerable variation. The most common coding systems used to classify this variation are Ahmed's codes 2MM M2-1D1, (CsCII) 1MM M/D1, and (RPI) 3MM M2 MV1 D1. Additionally, Vertucci's type II and type I are prevalent. The number of roots found in the teeth studied ranged from one to four, with the majority possessing two roots, consisting of two canals in the mesial root and one in the distal root.
Description
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Keywords
CBCT Ahmed Vertucci Cassificação