Incidence of C-shaped root canal systems in mandibular second molars in the native Chinese population by analysis of clinical methods / 国际口腔科学杂志·英文版
International Journal of Oral Science
;
(4): 161-165, 2012.
Artigo
em Inglês
| WPRIM
| ID: wpr-358220
ABSTRACT
The aims of the study were to investigate the incidence of C-shaped root canal systems in mandibular second molars in a native Chinese population using radiography and clinical examination under microscope and to compare the relative efficacies of these methods. For the recognition of C-shaped root canal system, 1 146 mandibular second molars were selected and examined. Teeth with C-shaped canal systems were categorized by using the radiographic classification criteria and the modified Melton's method. C-shaped canals were identified in 397 (34.64%) mandibular second molars by radiography (type I, 31.23%; type II, 38.29%; type III, 30.48%). Clinical examination showed that 449 (39.18%) cases exhibited C-shaped canal systems (C1, 22.94%; C2, 48.11%; C3a, 15.59%; C3b, 13.36%). As for the result of the radiographic and clinical combined examination, C-shaped root canals were found in 473 (41.27%) mandibular second molars (C1, 21.78%; C2, 45.67%; C3a, 16.70%; C3b, 15.86%). The incidence of C-shaped root canal diagnosed by radiographic method was statistically different from that by clinical examination and the combined examination (P<0.05). The study indicated a high incidence of C-shaped canal system in a Chinese population. The combination of microscopic and radiographic examination is an effective method in identifying the C-shaped root canal system.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Raiz Dentária
/
Diagnóstico por Imagem
/
Radiografia Dentária
/
Distribuição de Qui-Quadrado
/
China
/
Cavidade Pulpar
/
Povo Asiático
/
Variação Anatômica
/
Mandíbula
/
Microscopia
Tipo de estudo:
Estudo diagnóstico
/
Estudo de incidência
/
Estudo prognóstico
Limite:
Adulto
/
Idoso
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
International Journal of Oral Science
Ano de publicação:
2012
Tipo de documento:
Artigo
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