Should you be re-treating that root canal—or referring it out?

What are the red flags that scream “specialist only”?

How do you confidently remove GP without compromising disinfection?

Dr. Ayman Al-Sibassi joins Jaz in this endo-packed episode to help you navigate the tricky world of root canal re-treatments. From solvent selection and GP removal techniques to assessing case difficulty, they break down everything a GDP needs to know to make smart, confident decisions.

You’ll learn how to spot the cases you should be tackling, which ones to send to your endodontist, and what tools and techniques will make the re-treatment process smoother and safer. Because not all re-treatments are created equal—and some are surprisingly simple once you know what to look for.

https://www.youtube.com/watch?v=apMtcuNTLqIWatch PDP233 on YouTubeProtrusive Dental Pearl: A crack in a bonded ceramic restoration isn’t necessarily a failure!

Just like we accept cracks in natural enamel, we can also accept cracks in ceramics—as long as it’s been properly bonded.

Shoutout to Dr. Pascal Magne for this powerful mindset shift!

Need to Read it? Check out the Full Episode Transcript below!

Key Takeaways

• Specialist training in endodontics includes a variety of surgical skills.
• The complexity of root canal retreatments varies significantly.
• General dentists can perform some retreatments, but should assess complexity carefully.
• Patient consent is essential, especially regarding potential unrestorability.
• Communication about fees should be clear and upfront with patients.
• Red flags for retreatment include poor coronal seal and previous treatment quality.
• CBCT imaging is becoming increasingly important in endodontic practice.
• Collaboration between general dentists and specialists enhances patient outcomes. Many referrals stem from straightforward cases that are poorly managed.
• Using solvents can aid in GP removal but should be approached cautiously.
• Single visit treatments are often preferred for patient convenience.
• Adequate disinfection is crucial, sometimes necessitating a second visit.
• The survival rate of root canal-treated teeth is comparable to implants.
• Patient age and overall health should guide treatment decisions.
• Understanding the difference between success and survival in endodontics is essential.

Highlights of this episode:

• 00:00 Introduction
• 05:02 — Protrusive Dental Pearl: Cracks in enamel vs. dentine
• 06:34 — Guest Introduction: Dr. Ayman Al-Sibassi and his journey into Endo
• 11:03 Assessing the complexity of re-treatments and when to refer
• 15:21 The role of CBCT in diagnosis and treatment planning
• 17:47 Ethical and financial dilemmas: charging for unrestorable teeth
• 22:05 Red flags in root canal re-treatments
• 34:55 Techniques for GP removal and file selection
• 47:07 Cost vs. predictability: re-treatment vs. implants and long-term outcomes

Take a look at this Endodontic Complexity Assessment Tool to help you evaluate how challenging a root canal case really is.

If you enjoyed this episode, you’ll definitely want to check out: Stop Being Slow at Root Canals! Efficient RCTs with Dr. Omar Ikram – PDP163

This episode is eligible for 1 CE credit via the quiz on Protrusive Guidance.

This episode meets GDC Outcomes B and C.

AGD Subject Code: 070 ENDODONTICS (Non-surgical treatment)

#PDPMainEpisodes #EndoRestorative

Aim:

To provide clinicians with a structured approach to diagnosing, planning, and executing simple Re-Root Canal Treatments (Re-RCTs), while recognizing case limitations and improving treatment outcomes.

Dentists will be able to:

1. Identify clinical situations where Re-RCT is appropriate and distinguish them from cases requiring referral or alternative treatment.
2. Describe the potential challenges such as canal blockages, separated instruments, or apical complications, and know when to refer.
3. Communicate effectively with patients regarding prognosis, risks, and treatment expectations, including the need for possible referral.

Click below for full episode transcript:Teaser: So if it's higher up on the attached gingiva, I'm thinking more about a root fracture. If it's lower down in the buccal sulcus, then it's more likely to be coming from the apex. And that is a, I'm not saying it's less, probably less likely to be a fracture, whereas if it's really high up, you're thinking maybe a furcation, sorry.Teaser: Fractures somewhere in the root essentially. If we come back to what I said about why most these more straightforward cases, why they fail a lot of the time. As I said, it’s because the gps already not that well condensed to begin with. So in terms of removing the gp, my first go-to in those kind of cases would always kind of be- so the reason I say that is ’cause they’re handfull, so they’re probably a lot safer than using sort of rotary files. You can control it a bit better as well.

Jaz’s Introduction:I used to think that root canal re-treatments were only for specialists and that GDPs should not touch them. Well. How wrong was I? When I entered my training post in Sheffield, it was a a dental core trainee post. Now the rest of the world is kind like a residency.

It was like one year attachment with the restorative department, and this was in a dental hostel. I remember seeing a case, it was a central incisor and it already had a root filling, so it was up to me to do the root canal re-treatment. Now, I was scared. I was, oh my God, I’ve never done a re-treatment before.

I’ve never had to remove gp. And also I was learning how to use the scope of the first time. So for me, I was nervous. I was thinking, this is very much specialist treatment. Will I be able to carry it out? Now, when the case actually came in front of me and I saw the radiograph, it literally was like a GP cone floating in this big wide canal.

Just that one sultry master cone. Plenty of air and fluid if you like around it. No wonder it failed and I accessed the tooth. I literally, with my tweezers, could see so clearly that GP cone, I picked it out and I carried out the root canal treatment and that was the easiest root canal re-treatment ever.

And it just made me realize that had this limiting belief that not all re-treatments are the same. So I guess the point of this episode and what we’ll learn with my guest Dr. Ayman Al-Sibassi, is how to know which re-treatments GDPs should totally get involved with and how to know where perhaps this is one to refer to our specialist colleagues.

You’ll find out the best ways to remove the gutta percha. Is it gutta percha or is it gutta Perker? Honestly, endo is not my thing so much anymore, so I don’t even know how to say it anymore, but you know what I mean. The GP. Which is the best instrument, which is the best solvent? And interestingly, how much solvent should he actually be using?

Like should you be flooding your canal with solvent or should you be just using tiny drops on your instrument? And related to what I just said earlier, I want you to understand more about risk and predictability of re-treatments. What are the red flags that you should not pass go? We cover all this and so much more in this episode.

Now, if you’re new to the podcast, welcome. My name is Jaz Gulati, and therefore you are called affectionately the Protruserati. We are the community of the nicest and geekiest dentist in the world. So if you wanna join that community, head over to www.protrusive.app. The idea is that we don’t want anyone to feel isolated, that they can’t ask for advice.

If anyone’s feeling nervous or unsure about certain treatments, well check the whole backlog of all the episodes we’ve done. But also having peers, like-minded Protruserati to support you is exactly what you’ve created on our app. Now those of you who are returning viewers and listeners, please do hit that subscribe button.

Dental PearlAnd as you know, every PDP episode, I give you a Protrusive Dental Pearl. Now by the time episodes come out to publish, it’s actually probably been a few months sometimes what I’m kind of doing now is like early spring now, and I’m kind of getting ahead so that I can enjoy my summer with my family.

But you guys all get an episode once a week. That is the dream. And one thing that you guys ask me all the time is Jaz, how do you do it? How do you stay motivated with your podcast? How do you get it done? How do you balance family, children, clinical dentistry, and of course watching cricket, which I love doing.

How do I make it all happen? Well, I’ll tell you something guys. Something just from the heart. I have a big team now and they help me so much. It is a real team effort to get every episode out. Every episode that has CPD or CE especially, has probably been through about four different people and about three of those are dentists before it actually reaches publication.

That’s so that we can actually quality control the CPD questions, the learning outcomes, and produ...