-----Original Message-----

From: bounce-roots-5492@ls.canaden.com

[mailto:bounce-roots-5492@ls.canaden.com]On Behalf Of Dr. Arnaldo

Castellucci

Sent: Monday, September 03, 2001 10:32 AM

To: ROOTS

Subject: [roots] Re: Here I am !

Dear Laura,

I am glad to answer your questions.

1. - The % of sodium hypochlorite i use both in vital and necrotic cases is

5%.

2. - The time is never less than 30 minutes. That means that, for istance, if

I am working on an upper molar (which means 4 canals), I schedule my patient

for a two hour appointment just for cleaning and shaping, or if we want to be

more precise, for shaping and cleaning: we know that with rotary

instrumentation the canal is shaped in a few minutes, but the irrigants need

more time, so we first shape and then we let the irrigants clean the root

canal. So, going back to our patient, the first root canal I am working on

(the palatal) will be irrigated for one and half hour, while the MB2 will be

"only" for half an hour. According to the literature, this should be enough.

3, 4 - The solution I use is warm, 50°C, which is about 120°F. For this

purpose, I use a very cheap "coffee cup warmer", the same that in USA is used

to keep warm the brown liquid that the American call "coffee"!

5.- As a final irrigation, after alternating NaOCl and EDTA 17%, after a

final irrigation for 5 minutes with EDTA, I neutralize the EDTA with NaOCl

and then, in order to have a root canal absolutely dry before the obturation,

I irrigate with ethyl alcohol 96% and dry the canal with paper points and air

(very very low pressure) with the Stropko irrigator. This is something I

learned from John Stropko and from Gary Carr.

Thank s for your interest and best regards.

Arnaldo

Laura Tolosa wrote:

> Dear Dr. Castellucci:

> >From Chile, we give to you many thanks for to stay a day on Roots.

> A question for you:

> 1.- For cleaning a necrotic pulp canal, what % of Sodium Hipoclorite

> solution do you use?

> 2.- How much time it must be inside the canal.

> 3.- Do you use warm the solution?

> 4.- At what temperature?

> 5.- Do you use also isopropilic alcohol with it?

> Many thanks to you again dear Doctor and best regards.

> Laura Tolosa

> General Dentist

SUMMIT II - San Diego June 6th - 9th, 2002

Hosted by Sybron Endo

Coordinators - Fred Barnett, Peter Cancellier

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