Root and canal morphology of mandibular first and second molar teeth in a Jordanian population.
Int Endod J
; 42(9): 775-84, 2009 Sep.
Article
en En
| MEDLINE
| ID: mdl-19549153
ABSTRACT
AIM:
To examine the root and canal morphology of mandibular permanent first and second molar teeth in a Jordanian population.METHODOLOGY:
A total of 685 extracted mandibular first and second permanent molar teeth were collected from dental clinics within north Jordan. The teeth were examined visually and the root number and morphology were recorded. After that, access cavities were prepared, pulp tissue dissolved by sodium hypochlorite and the root canals injected with Indian ink. Stained teeth were decalcified with 10% nitric acid, dehydrated with ascending concentrations of alcohol and rendered clear by immersion in methyl salicylate. The following observations were evaluated (i) number of canals per root; (ii) number of root canals per tooth; (iii) canal configuration in each root; (iv) number and location of lateral canals and (v) presence of intercanal communications.RESULTS:
Of 330 mandibular first molars, the majority had three (48%) or four (46%) canals, whilst 4% had a third disto-lingual root. Of 355 mandibular second molars, 58% had three canals, 19% two and 17% had four canals, whilst 10% had C-shaped roots. The most prevalent canal configuration in the mesial root of both first (53%) and second (40%) molars was type IV, and in distal roots was type I (54% in first and 79% in second molars).CONCLUSIONS:
Jordanian mandibular first and second molar teeth exhibit features close to the average Caucasian root and canal morphology.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Raíz del Diente
/
Cavidad Pulpar
/
Diente Molar
Tipo de estudio:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Risk_factors_studies
Límite:
Humans
País/Región como asunto:
Asia
Idioma:
En
Revista:
Int Endod J
Año:
2009
Tipo del documento:
Article
País de afiliación:
Jordania