Lesson 7: Obturation

Endodontic obturation: Techniques, materials to enhance success

Overview

This video discusses the importance of obturation in endodontics, emphasising its role as a reflection of canal preparation, a barrier against re-colonisation, and a measure of treatment outcome. It covers various obturation techniques, sealer types, and clinical tips to achieve a successful three-dimensional fill.

Key topics covered

• The importance of obturation in preventing re-colonisation of the root canal
• Triad of successful obturation: technique, sealer choice, and execution
• Comparison of traditional (cold lateral compaction) and modern obturation techniques
• Differences between older and newer gutta-percha (GP) cone formulations (rolled vs. injection-moulded)
• The use of gauging to determine the apical diameter of the canal
• Different sealer categories: zinc oxide eugenol, resin-based, and hydraulic cements
• Importance of disinfecting the operative field and GP cones before obturation

Clinical relevance

The video offers guidance to dentists on optimising their obturation techniques for improved long-term success. It highlights the necessity of matching GP cones to canal anatomy, selecting appropriate sealers, and implementing infection control measures to minimise the risk of treatment failure. This practical advice assists in achieving predictable and reliable obturation.

Learning outcomes

After watching this video, dentists will be able to:

• Understand the key principles and goals of effective root canal obturation
• Select appropriate obturation techniques and materials based on individual case requirements
• Gauge and modify GP cones to ensure an accurate apical fit
• Implement effective infection control protocols to improve obturation outcomes