Impact of sodium hypochlorite with calcium hydroxide dressing on root canal disinfection and periapical tissue response

Document Type

News Article


Before a root canal system can be filled during a root canal procedure, it should be freed of necrotic pulp remnants and biofilm as thoroughly as possible. To dissolve these entities, alkaline proteolytic agents are applied: sodium hypochlorite (NaOCl) in aqueous solution as an irrigant and/or a calcium hydroxide (Ca(OH)2) suspension as an interim dressing. To let the NaOCl exert its effects passively in the root canal system has not gained the attention it probably deserves. This research aims to assess the impact of passively placed NaOCl with a calcium hydroxide dressing in teeth with primary apical periodontitis in adult patients.

  1. doi:10.1111/iej.13129
  2. https:



Publication Date

Spring 10-1-2022