IADR Abstract Archives
Computed tomography investigation of root canal morphology in pre-contemporary Australian Aboriginal dentitions of the Narungga tribe, Yorke Peninsula, South Australia
Objectives: To evaluate root canal morphology of permanent teeth in an Aboriginal population using medical computed tomography.
Methods: From 47 pre-contemporary skulls of Australian Aboriginal origin, 906 teeth were examined on three-dimensional (3D) medical computed tomography (CT) reconstructions. The teeth were scored for number of canals per tooth and pulp chamber morphology for each root according to Vertucci’s classification.
Results: The majority of anterior teeth in both upper and lower arch had a single root canal. Generally, first and second maxillary premolars had a two canal system, whilst mandibular first and second premolars usually have a single root canal. The respective numbers for first and second molars were: 4 and 4 for maxilla and 4 and 3 for mandible. No C-shaped canals were found in mandibular molars, however 6.4% of mandibular premolars showed a C-shaped canal.
Conclusions: Naurngga people present with root canal mor[hological features normally present in caucasian and mongoloid people.
Methods: From 47 pre-contemporary skulls of Australian Aboriginal origin, 906 teeth were examined on three-dimensional (3D) medical computed tomography (CT) reconstructions. The teeth were scored for number of canals per tooth and pulp chamber morphology for each root according to Vertucci’s classification.
Results: The majority of anterior teeth in both upper and lower arch had a single root canal. Generally, first and second maxillary premolars had a two canal system, whilst mandibular first and second premolars usually have a single root canal. The respective numbers for first and second molars were: 4 and 4 for maxilla and 4 and 3 for mandible. No C-shaped canals were found in mandibular molars, however 6.4% of mandibular premolars showed a C-shaped canal.
Conclusions: Naurngga people present with root canal mor[hological features normally present in caucasian and mongoloid people.