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- Title
Root and canal morphology of maxillary first and second permanent molar teeth in a Ugandan population.
- Authors
Rwenyonyi, C. M.; Kutesa, A. M.; Muwazi, L. M.; Buwembo, W.
- Abstract
Aim To investigate the root and canal morphology of permanent maxillary molar teeth from a Ugandan population. Methodology Maxillary first ( n = 221) and second molar ( n = 221) teeth were collected from patients attending dental clinics in Kampala. Teeth were prepared using a clearing technique: the pulp chambers were accessed and the teeth placed consecutively into 5% sodium hypochlorite, 10% nitric acid, then methyl salicylate. Indian ink was injected into the pulp chambers to demonstrate the canal system. Results In the first molars, 95.9% of the teeth had separate roots. The mesiobuccal root was fused with the palatal root in 3% of specimens and with the distobuccal root in 0.5% of teeth. In the second molars, 86% of the teeth had separate roots. The mesiobuccal root was fused with the palatal root in 6.3% of specimens and with the distobuccal root in 6.8% of teeth. Apical deltas were more frequent in the mesiobuccal root when compared with distobuccal and palatal roots of both the first and second molars. A type I canal configuration (>75%) was the most frequent in all the roots of both the first and second molars. Canal intercommunications and lateral canals were more frequent in the mesiobuccal root when compared with other roots. Conclusions The mesiobuccal root tended to have more variations in the canal system followed by the distobuccal root, whereas the palatal root had the least. The findings in root and canal morphology of this Ugandan population were different from previous studies, which may partly be attributed to racial differences.
- Subjects
KAMPALA (Uganda); UGANDA; DENTAL pulp cavities; MOLARS; MAXILLARY expansion; SODIUM hypochlorite; NITRIC acid
- Publication
International Endodontic Journal, 2007, Vol 40, Issue 9, p679
- ISSN
0143-2885
- Publication type
Article
- DOI
10.1111/j.1365-2591.2007.01265.x