Sodium Hypochloride

Question 1

Do you want low surface tension for an irrigation solution?

Answer 1

Yes

Question 2

What does EDTA do?

Answer 2

• Remove the smear layer

- Chelator

Question 3

Does chlorhexidine remove the smear layer?

Answer 3

-No

Question 4

Does chlorhexidine have an effect on necrotic tissue?

Answer 4

-No

Question 5

What is the Best proteolytic agent used for irrigation?

Answer 5

-Sodium Hypochlorite

Question 6

What does Sodium hypochlorite do?

Answer 6

-Breaks down proteins into amino acids through free chlorine

Question 7

What can sodium hypochlorite dissolve?

Answer 7

• Organic debris

- Inorganic debris

Question 8

T/F Chlorhexidine is effective against E. Faecali

Answer 8

True

Question 9

If you use chlorhexidine with NaOCl what can occur?

Answer 9

-A precipitate is formed

Question 10

How long does it take for the smear layer dissolve?

Answer 10

-60 seconds

Question 11

How often do you irrigate?

Answer 11

-After every 2-3 file changes

Question 12

What usually causes NaOCl accidents?

Answer 12

-It gets outside the canal

Question 13

How quickly does swelling occur when NaOCl gets out the canal?

Answer 13

-Immediate with bleeding and tissue necrosis