Root and Canal Morphology of Maxillary First and Second Permanent Molar Teeth in a Ugandan Population
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Date
2007
Journal Title
Journal ISSN
Volume Title
Publisher
International Endodontic Journal
Abstract
To investigate the root and canal morphology of permanent maxillary molar teeth from a Ugandan population.Maxillary first (nā=ā221) and second molar (nā=ā221) 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.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.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.
Description
Keywords
clearing technique, maxillary molars, morphology, root canal
Citation
Rwenyonyi, C. M., Kutesa, A. M., Muwazi, L. M., & Buwembo, W. (2007). Root and canal morphology of maxillary first and second permanent molar teeth in a Ugandan population. International Endodontic Journal, 40(9), 679-683.https://doi.org/10.1111/j.1365-2591.2007.01265.x