NEET MDS

The Power Course

The major disadvantage of diluting Sodium hypochlorite irrigant is:



Choices

1 ) Reduced antibacterial effect
2 ) Decreased tissue lytic effect
3 ) Increased cavitation
4 ) All of the above

Explanation


The disadvantage of diluting sodium hypochlorite as root canal irrigant:

Sodium hypochlorite is the one of the best choices as an endodontic irrigant due to its better antimicrobial effect and tissue lytic effect. Its concentration for root canal irrigants varies from 0.5% to 5.25%. But, a higher concentration of NaOCl dissolves even the vital soft tissue which is an undesired effect. To avoid the untoward effect of hypochlorite it is diluted by adding saline. The diluted sodium hypochlorite shows reduced antimicrobial effect and tissue lytic effect too. But, when compared to its antimicrobial effect, the major problem of the diluted NaOCl is the greater decrease in tissue lytic effect on the necrosed pulp. 

To overcome such shortcomings, nowadays it is advised to use warm hypochlorite at 500. By doing warming, the potency of NaOCl will increase along with improved antimicrobial effect. But the warming of NaOCl also increases its side effects. 


Answer

Decreased tissue lytic effect

Last Modified : 02-Dec-2019

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