Factors Affecting Irrigants in Dentistry
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Questions and Answers

What is the key objective of instrumentation and irrigation from a biological point of view?

  • To remove all hard tissue from the root canal system
  • To eradicate microorganisms in the root canal system (correct)
  • To prevent the flow of irrigants into inaccessible areas
  • To solely dissolve necrotic tissue and debris

Which of the following is NOT an ideal requirement for an irrigation solution?

  • Weakening tooth structure (correct)
  • Being cost-effective and easily available
  • Having broad spectrum antimicrobial properties
  • Being a good lubricant

What is one of the functions of irrigants in the root canal system?

  • Inactivate endotoxin (correct)
  • Encourage the formation of hard tissue
  • Promote the growth of microorganisms
  • Weaken tooth structure

Which property is important for an irrigation solution to effectively flow into inaccessible areas?

<p>High surface tension (B)</p> Signup and view all the answers

Why are irrigants important in endodontic treatment?

<p>To facilitate removal of necrotic tissue and microorganisms from the root canal (D)</p> Signup and view all the answers

What is the main function of using irrigants in root canal treatment?

<p>Opening dentinal tubules by removing smear layer (D)</p> Signup and view all the answers

Which factor does not modify the activity of irrigants?

<p>Air pressure used during irrigation (C)</p> Signup and view all the answers

What is one advantage of using normal saline as an irrigating solution?

<p>Biocompatible and no adverse effects if extruded periapically (B)</p> Signup and view all the answers

What factor directly affects the antimicrobial effect of sodium hypochlorite in root canal irrigation?

<p>Contact time with sodium hypochlorite (B)</p> Signup and view all the answers

Which chemical compound is commonly used to dissolve pulpal remnants and organic components of dentin in endodontics?

<p>Ethylene diamine tetraacetic acid (EDTA) (A)</p> Signup and view all the answers

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