CD-4 Barrier or Sieve - Are Resin-Based Materials Appropriate Canal Orifice Barriers for Establishing Coronal Seal?
CE Hours: 1.0
Description: An intact coronal seal is important for maintaining the integrity of a root canal filling and preventing reinfection. Coronal leakage provides a source of viable microorganisms and nutrients that initiate and sustain periradicular inflammation. Despite research supporting the effectiveness of coronal barriers, a universally accepted protocol that incorporates a coronal barrier after root canal treatment is non-existent. Different materials have been advocated for use as canal orifice barriers, including temporary or intermediate filling materials, zinc oxide-eugenol cements, amalgam, glass-ionomer cements, resin composites, flowable resin liners and tricalcium silicate cements. While each of these materials has its own benefits and limitations, the appropriateness of using resin-based materials as long-term canal orifice barriers will be examined in this presentation by correlating their barrier properties with their physicochemical and antibacterial characteristics, as well as the durability of the bonds created in dentin to retain these materials.
- State the rationale for placement of a coronal seal immediately after root canal treatment.
- Identify the merits and limitations of using resin-based materials as canal orifice barriers.
- Perform a reasonably durable coronal seal using an antibacterial self-etch adhesive and a radiopaque resin composite.
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Franklin Tay, B.D.S., PhD
I am an academic clinician and researcher in the field of dental medicine who currently holds the titles of Professor and Chairman in the Department of Endodontics at the Dental College of Georgia – Augusta University. I also serve as a professor in the Department of Oral Biology and the College of Graduate Studies at the same institution. My extensive research interests are demonstrated by my substantial grant acquisitions and prolific publications. I've led groundbreaking research projects in dentin bonding and in the biomineralization of collagen matrices. My scholarly work has significantly impacted the field, as evidenced by numerous publications in peer reviewed journals and presentations at prestigious international conferences. I am presently ranked 79th among top scientists in the field of Materials Science in the United States and 182nd in the world. I have 617 publications and 59,385 citations.
Disclosure(s): No financial relationships to disclose
Franklin Tay, B.D.S., PhD
I declare that I have no proprietary, financial, or other personal interest of any nature or kind in any product, service, course, and/or company, or in any firm beneficially associated therewith, that will be discussed or considered during the proposed presentation