Description

This article discusses the importance of correctly determining (1) the apical cleaning limit to clean the canal, and (2) the shaping limit in order to keep the obturation in a biologic level for periapical healing.

Learning Objectives:

• Be able to describe the apical cleaning working length and apical shaping limit
• Learn the techniques for determining foramen position
• Know certain precautions to overcome false or absent readings when using electronic measurements
• Identify the common myths involving apex locators