What is the difference between AH+ and AH-26 sealers ?

[Dr.Dohaithem]

AH-26 is cytotoxic due to formaldehyde release ( Not in AH+)

[al-nasser]

Thats what been published
but the reality is AH+ still release formaldehyde but to lesser extent
as far as I remeber That AH26 release 24 ?? ( cant remember the measure)
while AH+ release 18??

Reference --> Larz Spangberg Citation in MSD 2008

[Reham Khaled]

so doc al-Nasser if both release formaldehyde >> which is cytotoxic ..
why they are used nowadays ???

[al-nasser]

so doc al-Nasser if both release formaldehyde >> which is cytotoxic ..
why they are used nowadays ???

b/c they are used inside the canals not outside
+
their cytotoxicity is within 24 hrs. i.e they dont posses toxic effect when they are already set but during setting they do :)

[Reham Khaled]

:D ok now i understand better
thank you so much :)

[Wajih]

THere are suggestions that the cytotoxic effect can infact be benificial for being antibacterial as well as causing macrohphage induced phagocytosis. This self degradation comes helpful when accidental extrusion occurs.