Working Lengths and Troubleshooting Apex Locators – PDP216

Protrusive Dental Podcast

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What makes apex locators reliable—or completely misleading? How do you determine the true working length of a root canal? Why is relying solely on radiographs for endo success a risky move? Dr. Samuel Johnson joins Jaz for a game-changing episode that will make you rethink everything you know about endodontics. In this first part of a two-part special, they dive into the nuances of apex locators, the difference between the radiographic apex and apical constriction, and why our radiographs might be lying to us. They also explore the power of glide path files, how to improve your endodontics workflow, and an incredible way to consent patients—something that extends beyond just root canals. Because mastering endodontics isn’t just about technique—it’s about communication, precision, and making the right calls for long-term success. Stay tuned for Part 2, where we go even deeper into endo essentials! https://youtu.be/M2z8Dl_g4XY Watch PDP216 on Youtube Protrusive Dental Pearl: Buy a small whiteboard and marker for patient communication. Draw details, highlight the treatment plans, and list pros, cons, and fees. This builds trust, improves consent, and makes treatment clearer. Snap a photo and upload it to the patient’s records. https://amzn.to/3DzUJfn Key Takeaway: Understanding the difference between radiographic and anatomical apex is crucial. Apex locators are essential tools for accurate working length measurements. The anatomy of the root canal system is complex and requires careful navigation. A well-informed patient is more likely to have realistic expectations about treatment. Glide path files can significantly reduce treatment time. Avoid forcing files into hard stops to prevent damage. Complicated anatomy can lead to unexpected challenges during treatment. Taking radiographs can help clarify uncertain situations. Need to Read it? Check out the Full Episode Transcript below! Highlights of this Episode: 01:40 Protrusive Dental Pearl: Patient Communication 02:39 Welcoming Dr. Samuel Johnson 04:36 Samuel's Passion for Endodontics 07:07 Reliability of Radiographic Measurements vs. Apex Locators 11:15 Canal Anatomy 14:30 Overextension vs Overfilling 16:23 Combining Apex Locators and Radiographs 20:52 Apex Locators and Hypochlorite: The Perfect Combination? 24:00 Efficiency in NHS Dentistry 26:10 Transitioning from NHS to Private Practice 27:42 Understanding Radiographic vs Anatomical Apex 29:26 The Importance of Consent in Endodontics 33:07 Mastering Apex Locators: Tips and Tricks 37:07 The Role of Glide Path Files in Endodontics 39:19 Troubleshooting Endodontic Challenges Watch and learn from Dr. Samuel Johnson on Instagram and YouTube! If you loved this episode, be sure to watch Elective Endodontics? It’s all about Communication – PDP202 #PDPMainEpisodes #EndoRestorative #BreadandButterDentistry This episode is eligible for 0.75 CE credit via the quiz on Protrusive Guidance. This episode meets GDC Outcomes B and C. AGD Subject Code: 070 ENDODONTICS (Emerging concepts, techniques, therapies and technology) This episode aimed to enhance clinicians' understanding of endodontic diagnostics and workflow, focusing on apex locators, working length determination, and effective patient communication. By refining these skills, practitioners can improve treatment accuracy, efficiency, and patient outcomes. Dentists will be able to - 1. Differentiate between the radiographic apex and the apical constriction and understand why radiographs alone can be misleading. 2. Evaluate the reliability of apex locators and recognize factors that affect their accuracy. 3. Apply the use of glide path files to improve efficiency and reduce treatment time in root canal procedures. Want More Clinical Gems? Join the Protrusive Guidance App to get access to masterclasses, premium videos,

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