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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 sure 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, to the right and 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]


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