A New Methodology to Determine the Orifice for Root Canal Configurations in First Permanent Molar Root and Canal Morphologies Using Micro-Computed Tomography.

BACKGROUND: The distinction between where the pulp chamber ends and the root canal system begins is poorly defined within the existing literature. METHODS: This paper aimed to describe a range of accurate methods to define the transition from pulp chamber to root canal in different first molar root morphologies using micro-focus computed tomography (micro-CT). METHODS: The sample consisted of 86 mandibular and 101 maxillary first molars from the skeletal collections housed in the Department of Anatomy and Histology of the Sefako Makgatho Health Sciences University and the Pretoria Bone Collection. A stepwise approach using the cemento-enamel junction (CEJ) and dedicated landmarks was followed to create an automated cross-sectional slice. RESULTS: Transition from pulp chamber to root canal could be accurately determined on maxillary and mandibular teeth. The occurrence of two separate roots in mandibular molars was 97.7%, with the remaining 2.3% having an additional disto-lingual root, with no mandibular molars displaying fused roots. In the maxillary molars, 92.1% had three separate roots and 7.9% displayed root fusion. Within this group, one tooth displayed a C-shaped root canal configuration and one a mesotaurodont-type morphology. CONCLUSION: The suggested methodology to determine orifice location was found to be appropriate in all morphological types.

Defining dental operative skills curricula: An ADEE consensus paper.

This paper reports on the recent activity of the pan-European consensus of the ADEE Special Interest Group for Pre-Clinical Operative Skills. Following the previous recommendations from the group, and in order to support teachers and to harmonise the delivery of skills training across Europe, a more formal curriculum relating to pre-clinical operative skills needs to be created. This paper reports European consensus surrounding the categorisation (level of importance, and difficulty) of basic operative dental clinical skills within the undergraduate curriculum and provides recommendations relating to session structure and timing of curricular elements for basic operative dental clinical skills teaching.