Endodontic Irrigation Techniques
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Questions and Answers

What is the Smear Layer composed of?

  • Only dentin particles
  • Only retained irrigants
  • Dentin particles, pulp tissue remnants, bacterial components, and retained irrigants (correct)
  • Only bacterial components

Why is it important to remove the Smear Layer?

  • To allow medicaments to penetrate dentinal tubules (correct)
  • To prevent pulp tissue removal
  • To clean the infected areas
  • To dissolve necrotic tissue

What is the most commonly used irrigating solution in root canal treatment?

  • Sodium chloride (NaCl)
  • Sodium iodide (NaI)
  • Sodium hypochlorite (NaOCl) (correct)
  • Sodium hydroxide (NaOH)

What is the ability of Sodium hypochlorite (NaOCl)?

<p>Dissolve pulp tissue and biofilms (B)</p> Signup and view all the answers

What is the mode of action of Sodium hypochlorite (NaOCl)?

<p>Contacts tissue proteins; peptide links are fragmented and proteins disintegrate (C)</p> Signup and view all the answers

What is the result of peptide links being fragmented and proteins disintegrate?

<p>Hydrogen in the amino groups (-NH-) is replaced by chlorine (-NCl-) (C)</p> Signup and view all the answers

What is formed when Sodium hypochlorite (NaOCl) contacts tissue proteins?

<p>Nitrogen, formaldehyde, and acetaldehyde (B)</p> Signup and view all the answers

What is the importance of Sodium hypochlorite (NaOCl) in endodontics?

<p>It is the most commonly used irrigant (A)</p> Signup and view all the answers

What is the characteristic of an ideal irrigant?

<p>It should have most of the preferred characteristics (B)</p> Signup and view all the answers

What is the result of using Sodium hypochlorite (NaOCl) in root canal treatment?

<p>Necrotic tissue and pus are dissolved and the antimicrobial agent can better reach and clean the infected areas (D)</p> Signup and view all the answers

Flashcards

Smear Layer Components

Dentin particles, pulp tissue remnants, bacterial components, and retained irrigants form the smear layer.

Smear Layer Removal Importance

Removing the smear layer lets medicaments reach dentinal tubules.

Common Root Canal Irrigant

Sodium hypochlorite (NaOCl) is the most common irrigating solution in root canal treatment.

Sodium Hypochlorite's Ability

Sodium hypochlorite (NaOCl) dissolves pulp tissue and biofilms.

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NaOCl Mode of Action

Sodium hypochlorite (NaOCl) disrupts tissue proteins by fragmenting peptide links.

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Protein Disintegration Result

Replaced chlorine atoms (-NCl-) replace hydrogen atoms (-NH-) in proteins.

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NaOCl Tissue Protein Contact

When Sodium hypochlorite (NaOCl) contacts proteins, nitrogen, formaldehyde, and acetaldehyde form.

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NaOCl in Endodontics

Sodium hypochlorite (NaOCl) is the main irrigant used in endodontics.

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Ideal Irrigant Characteristics

An ideal irrigant should have desirable characteristics for effectiveness.

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NaOCl Root Canal Treatment Result

Sodium hypochlorite (NaOCl) dissolves necrotic tissue, pus, and enhances the reach of antimicrobial agents for infection removal.

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