engleski

Pulp space aberration of mandibular second permanent molars

Canal configuration of mandibular second permanent molars shows irregularities due to variations in root morphology. It is to be expected that during partial or total fusion of roots, pulp space may also merge. This investigation aimed to examine the appearance of pulp space aberration ('C-shaped' root canals) and to classify different root canal types when roots of mandibular second molars fuse. A total of 112 randomly chosen mandibular second molars after extraction due to periodontal disease were prepared and analysed. Contrast liquid (0.1% methylene blue) was injected into prepared teeth. Each tooth was cut into slices to allow better understanding of root canal morphology. Results of analysis revealed fusion, either total or partial in 14 cases (12.5%); total fusion occurred in seven teeth. Fusions were bucco-lingual or only on the buccal side of the root. Various appearances were classified into five types: 'C-shaped' along the root canal, 'O-shaped', 'C-shaped' distal root canal, 'C-shaped' mesial root canal, and 'H-shaped' each had a different degree of manifestation.

pulp space; mandibular molars

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