Continuous Chelation Concept in Endodontics

Abstract

Background:Continuous chelation can be defined as the concept of using a single mix of a weak chelator with NaOCL throughout the entire root canal preparation procedure without causing a reduction in the antimicrobial and proteolytic activity of NaOCL. Etidronic acid, also known as "1-Hydroxyethylidene-1, 1-Bisphosphonate" HEBP, or HEDP, is a soft biocompatible chelator utilized in direct combination with sodium hypochlorite to form an all-in-one deproteinizing, disinfecting, and chelating solution. It's the only chelator available as a certified commercial product, "Dual Rinse HEDP," approved for endodontic usage. This review aims to analyze and bring up-to-date data about the continuous chelation protocol using a combination of HEDP with sodium hypochlorite in endodontic irrigation. Data: only papers that were published electronically were searched within the review. Sources: “Google Scholar”,” PubMed” websites were used for searching data by using the following keywords: : Bisphosphonates, Continuous chelation, Dual rinse HEDP, Etidronate, HEBP. The most relevant papers related to the topic were chosen, specifically the original articles and clinical studies, including only English-language articles from 2005 to September 2022. Conclusion:Combining a weak chelator with NaOCL solution, a single irrigation solution mixture with soft tissue dissolving ability and antibacterial properties with chelating capability can be created, which can be considered a good alternative to the conventional irrigation protocol (sequential irrigation) with NaOCL followed by using a strong chelator such as EDTA. The obvious benefit is that only one solution is required for root canal cleansing and decontamination, also decreasing the time for irrigation and providing better conditioning of root canal walls for root-filling materials

Root Resorption in the Permanent Teeth. A Review

“…Calcium hydroxide has been used as a dressing between appointments to eliminate microorganisms successfully that persist following chemomechanical instrumentation. 25,26 Thermoplasticized techniques are recommended to enhance the seal of the internal resorption defect. If the resorption defect has perforated the root canal wall, bioactive hydraulic calcium silicate materials such as Biodentine or Mineral trioxide aggregate (MTA) must be used to repair the resorptive perforation defects.…”

Assessment of Bacterial Load and Post-Endodontic Pain after One-Visit Root Canal Treatment Using Two Types of Endodontic Access Openings: A Randomized Controlled Clinical Trial

“…The primary objectives of root canal treatment revolve around addressing and preventing apical periodontitis, achieved through thorough cleaning, and the shaping of root canals to eradicate microbes [1][2][3]. Creating access to the pulp chamber and root canal system stands as an initial and crucial stage in effective endodontic treatment [4,5].…”