A lower molar with a new crown, a growing periapical radiolucency, and furcation bone loss can feel like a coin flip: saveable infection or a hidden vertical root fracture? We talk through a real case and the exact decision-making that turns uncertainty into a plan, starting with access design that lets us inspect the pulpal floor and internal walls where fractures often show themselves.

From there, we get practical about root canal disinfection. We break down an irrigation protocol built around sodium hypochlorite, EDTA, and ultrasonic irrigation activation with EndoUltra, including why ultrasonic energy behaves differently than sonic systems and why you can still transmit cleaning energy to the apex even when the tip is a few millimeters short. We also explain the “pressure washer vs garden hose” analogy and why activation time, fresh irrigant replenishment, and tip movement matter for cleaning isthmuses, fins, and apical microanatomy.

Then we add the missing piece: measurement. We walk through ATP-based indicator scoring (EndoScore), how the swab and tube workflow fits into the final rinse, and how we use the number to decide whether to obturate, re-irrigate and reactivate, or place calcium hydroxide for a second visit. We also tackle sealer puffs and extrusion near the inferior alveolar nerve, how bioactive sealer like Regen changes the risk conversation, and what one-year radiographic healing can look like when the canal system is genuinely clean.

If you’re looking to improve root canal outcomes with a repeatable, evidence-based endodontic irrigation and verification workflow, hit subscribe, share this with a colleague, and leave us a review with your go-to activation time and your target EndoScore.

Recurrent decay is the silent killer of a lot of “good” composite work, especially at the gingival floor of a Class II box where patients simply cannot keep things clean. Dr. Michael Miyasaki lays out a practical, repeatable bioactive dentistry workflow designed to boost restoration longevity by improving isolation, controlling bleeding, and building a stronger seal where failures usually start. If you’ve been looking for a clearer clinical playbook for deep direct restorations, this is a step-by-step listen.

We start with field control that actually holds up under real conditions: rubber dam isolation, then predictable hemostasis using Quickstat-Free, a clear aluminum chloride solution that helps stop bleeding without discoloring esthetic areas. From there, we move into the exact sequence for cleaning and etching with Clean and Boost, plus how and when we add Desensimax in deeper preparations to support comfort, antimicrobial protection, fluoride delivery, and long-term bond durability.

The core of the technique is bioactive restorative materials built around bioglass, including Regen Universal Adhesive and a Regen flowable composite liner used as a reservoir. We talk through why this “universal” adhesive is not self-etching, how the liner supports adaptation and margin sealing, and how deep curing with the PinkWave curing light fits into polymerization confidence. You’ll also hear practical handling tips like warming composite (including Exquisite) for better adaptation and using a wetting resin like Seam-Free for cleaner sculpting and contour.

Finally, we get into the decision-making that matters chairside: open sandwich vs closed sandwich, and the remin open sandwich technique that intentionally brings bioactive flowable up to demineralized contact areas to help prevent the next cavity. If this helps you think differently about margins, deep dentin, and adjacent tooth risk, subscribe, share the episode with a colleague, and leave a review so more clinicians can find the workflow.

A root canal can look flawless on a radiograph and still hurt like crazy. We dig into a real retreatment case where the “good” root canal is the one failing, and the only way forward is to stop guessing and start measuring what might still be living inside the canal system.

Dr. Ryan Walsh joins me to break down how he approaches access through an existing crown, gutta percha removal, patency confirmation with an apex locator, and why a quick ATP-based indicator test can change the plan. We talk through EndoScore basics, what the 1 to 100 scale is actually reflecting, and the practical thresholds that guide decision-making before obturation. When the first reading comes back high, we use calcium hydroxide and reassess, expecting the score to fall if the canal system is truly disinfected.

Then the twist: the score stays higher than it should, which pushes a deeper look at anatomy. By troughing the mesial groove, we uncover a mid-mesial canal, a common enough variation to matter and a sneaky enough space to keep bacteria protected. Once that canal is shaped and cleaned, the score drops dramatically, giving both clinical confidence and a clear, simple story to share with the patient.

If you want more predictable endodontics, better ways to explain persistent symptoms, and a practical framework for using objective data in root canal retreatment, listen through to the end. Subscribe, share this with a colleague, and leave a review with your biggest takeaway.