Success in endodontics is built step by step. While shaping, cleaning, and obturation are fundamental, long-term outcomes ultimately depend on one critical factor: the coronal seal. Without a reliable seal coronally, even the most carefully performed root canal treatment can be compromised.
Preventing bacterial recontamination from the oral environment is essential for maintaining the integrity of the root canal system and supporting periapical healing. A durable coronal seal protects the clinician’s endodontic investment and plays a decisive role in the longevity of the treated tooth.
Why Coronal Seal Matters
Once access is gained, the pulp chamber becomes a potential pathway for bacterial ingress. Research has shown that coronal leakage can occur rapidly if sealing is delayed or inadequate. Marginal gaps, temporary restorations, or materials that do not bond predictably can all allow contamination to reach the canal system, increasing the risk of post-treatment disease.
What should a predictable coronal seal deliver?
- Minimises bacterial penetration and microleakage
- Protects the obturation and canal system
- Supports periapical healing
- Enhances long-term restorative success
- For these reasons, coronal sealing should be considered an integral part of the endodontic workflow
How to improve coronal seal with proven Root to Crown workflow solutions:
Dentsply Sirona supports a system-based approach to endodontic treatment, offering integrated solutions designed to work together seamlessly from access through to final restoration. By aligning shaping, obturation and restoration, clinicians can reduce complexity and improve predictability.
At the shaping stage, WaveOne® Gold continues to set the standard. Now celebrating 10 years of clinical success, this single-file reciprocating system has earned the trust of clinicians worldwide. Its gold heat-treated alloy delivers enhanced flexibility and resistance to cyclic fatigue, enabling efficient shaping while respecting canal anatomy.
After a decade of use, WaveOne® Gold remains a proven choice, not because it is new, but because it consistently delivers reliable results. Predictable shaping creates the ideal foundation for effective irrigation, obturation and, critically, a durable coronal seal.
Obturation That Supports Long-Term Outcomes
A strong coronal seal depends on what lies beneath it. Dentsply Sirona obturation solutions are designed to provide excellent adaptation, dimensional stability and long-term sealing ability. Conform Fit™ gutta‑percha points are precisely matched to the WaveOne® Gold system, supporting efficient, predictable cone selection and a reliable fit within the prepared shape. When paired with AH Plus®, the 30-year established gold‑standard epoxy resin sealer known for its excellent sealing ability, low solubility and durable long‑term stability, clinicians gain an obturation foundation they can trust.
By helping to minimise gaps and limit potential pathways for bacterial ingress, these materials form a coordinated system that protects against reinfection. When obturation and restorative materials are designed to work together, clinicians can confidently seal the tooth from apex to crown.
SDR®: 15 Years of Proven Performance
Once obturation is complete, immediate and effective coronal sealing is essential. For 15 years, SDR has been a trusted solution for clinicians seeking a predictable, durable coronal seal following endodontic treatment.
SDR® flow+ is a bulk-fill flowable composite engineered to significantly reduce polymerisation stress, one of the key contributors to marginal breakdown and microleakage. By helping maintain the integrity of the adhesive interface, it supports a tight, long-lasting seal over the pulp chamber and canal orifices.
Key benefits of SDR flow+ include:
- Low polymerisation stress, helping to reduce gap formation
- Excellent flow and adaptation to complex cavity anatomy
- Bulk-fill placement up to 4 mm for efficient workflows
- Radiopacity for easy post-operative evaluation
By flowing intimately into internal irregularities, SDR flow+ helps seal potential pathways for bacterial ingress, protecting the root filling and supporting long-term endodontic success.
Immediate Coronal Seal as a Standard of Care
Evidence increasingly supports the placement of an immediate definitive coronal seal following obturation. Delays can expose the canal system to contamination, undermining treatment outcomes. SDR® enables clinicians to place a reliable core build-up efficiently, even prior to full cuspal coverage, helping safeguard the tooth during the restorative phase.
Used within an appropriate adhesive protocol and followed by a definitive restoration, SDR flow+ acts as a stress-absorbing foundation that protects both the tooth and the endodontic work beneath.
Tried, Tested, and Trusted
In dentistry, longevity matters. Products that stand the test of time do so because they deliver consistent performance in everyday clinical practice. WaveOne® Gold, with 10 years of proven shaping success, SDR®, celebrating 15 years of excellent bulk‑fill technology, and AH Plus®, commemorating 30 years of clinical success, recognised for its long‑term sealing reliability, exemplify Dentsply Sirona’s commitment to evidence‑based innovation.
Together, they support a workflow focused on:
- Efficient and conservative canal shaping
- Predictable obturation
- Immediate, durable coronal sealing
Coronal seal is a cornerstone of endodontic success. By choosing proven, system‑based solutions, clinicians can protect their work, reduce the risk of reinfection and deliver predictable long‑term outcomes.
With WaveOne® Gold, AH Plus® and SDR® flow+, Dentsply Sirona offers trusted solutions that have supported clinicians for decades, helping ensure that every root canal treatment is sealed for success from the Root to Crown.
Try the WaveOne GOLD and SDR Flow+ Procedure Kit and get your trusty favourites in one place
WaveOne GOLD and SDR Flow+ Procedure Kit from Dentsply Sirona includes 15 WaveOne Gold Sequence Files and 15 SDR Flow+ Compules for optimised coronal seal workflows.
Dentsply WaveOne GOLD and SDR Flow+ Procedure Kit focuses on the Coronal Seal element of the R2C workflow, utilising the full WaveOne Gold file sequence (Handfile, Glider & Primary), and SDR® flow+ Bulk Fill Composite.
