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Gustavo Dedeus hand filing tehnique
From: Sergiu Nicola
Sent: Friday, February 20, 2009 10:20 PM
Subject: [roots] 2 cases from today, hand files only Gustavo Dedeus hand filing tehnique
hi rooters, I have thrown away rotaries in theese 2 cases, i wanted
to practice dedeus filing tehnique. so x gates+ss k files 08-80 Check
them out - Sergiu
Hi Sergiu, At first, your cases are very well-done. Congratulations.
My English is not really good, so, I am unable to get what you mean:
'I wanted to practice dedeus fillings technique'. Please, make it
clear for me - Gustavo
copy paste castelluccci vol II page 484
Method of DeDeus
This may be deemed to be an obscure method; however, most clinician
probably employee some variation of the technique. The method was
described to the author by the late Quintiliano DeDeus, a reknowned
endodontist from Brazil, while taking a walk in San Francisco one evening
in the fall of 1990. To my knowledge, a description of the method has
yet to be published. The method employs the use of a precurved file
used in a rocking or oscillatory manner. As the instrument is manipulated,
it is moved apically through the length of the canal until it meets
resistance . The instrument is, then, turned slightly counter- clockwise
to retrieve or unlock it. It is then turned lightly in a clockwise
direction to capture debris. This instrument is followed by larger
and larger instruments used progressively deeper and deeper in the canal.
This sequence of instruments is repeated until the desired diameter,
and shape, of the preparation is complete. It is an extremely safe
and effective method of enlargement, however, painstaking. The shapes
can be narrower than in other techniques, but follows the path of the
root canal well.
Are you that dedeus? - Sergiu
wouldn't be nice if every rooter should "forget" that he has rotaries
in his office at least once a month and approach a good old hand
fshaping - schilder/roane/dedeus endodontics? - Sergiu
Sergiu,Your comment it is very well-timed.
The first time that I have talked with Schoeffel he made the same question.
In fact, Prof. Quintiliano De Deus and I are just homonymous by the surname.
Castelluccci is fully correct. Prof. Quintiliano De Deus was a superb
professor and a real innovator from his time. I had the opportunity to
attend some unforgettable lectures given by him.
He was responsible for a large advance in the Brazilian Endodontics. He was
a great spreader of the single-visit endodontics concept as well as he have
developed simple but effective hand-instrumentation technique. In addition,
he was the first professor that I saw claiming by the use of an M or MF cone
as the master cone in order to increase the amount of gutta-percha and,
consequently reduce the sealer component.
The hand-instrumentation technique which Castelluccci refereed is indeed
very interesting. The technique is based on the quadrate cross-section of
the ordinal K-files. The instrumentation kinematics is based on a kind of
sight oscillatory movement; actually, ¼ to the right and ¼ to the left.
In this way, a whole turn is easily and safety completeted.
Lamentably, Castelluccci is also correct regard to publication of those
techniques. In his time, international publication was not a common routine
for a Brazilian professor. His thoughts and techniques were described only
in text his excellent text book in Portuguese. He has done another superb
work about anatomy which his most famous work worldwide. The abstract is below.
Unfortunately, Prof. Quintiliano De Deus passed away too early, in the end
of 90'. - Gustavo
Frequency, location, and direction of the lateral, secondary, and accessory canals.
De Deus QD.
J Endod. 1975 Nov;1(11):361-6.
Faculdade de Odontologia da U.C.-MG, Belo Horizonte, Brazil.
Observation of 1,140 transparent teeth of adult humans was made to verify
the frequency, location, and direction of the accessory, secondary, and
lateral canals located at the radicular-apical area, at the body of the root,
and in the base of the root. In 27.4% of the teeth studied, some type of
ramification was observed; these ramifications were usually located in the
apical area of the root. The premolars and molars showed the greatest
variety of ramifications.
PMID: 10697487 [PubMed - indexed for MEDLINE]