O Prof. Carlos E. da Silveira Bueno esteve em Belo Horizonte
neste último dia 30 de maio
participando do Dental Canal 2013.
sexta-feira, 31 de maio de 2013
quarta-feira, 29 de maio de 2013
EEC/Prof. Carlos Fontana no IV Congreso Latino Americano de Líderes de Opinión Colténe / México - Lima HyFlex
Prof. Carlos Fontana esteve na compania dos amigos e também Professores Celso Kenji , Alexandre Câmara, Fernando dos Reis , Celso Caldeira, Marcelo Mangelli e Sônia Mendes.
Professora e ex-aluna do Curso de Mestrado em Endodontia da
EEC Patrícia Escobar (Paraguai) esteve no evento
Hands-on do Sistema Rotatório Hyflex CM
Prof. Antonis Chaniotis (Grécia) e Prof. Carlos Fontana (Equipe de Endodontia de Campinas)
Int Endod J maio 2013 - Efficacy of reciprocating and rotary techniques for removing filling material during root canal retreatment
Abstract
Zuolo AS, Mello JE Jr, Cunha RS, Zuolo ML, Bueno
CES. Efficacy of reciprocating and rotary techniques for
removing filling material during root canal retreatment.
International Endodontic Journal.
To compare the efficacy of reciprocating and
rotary techniques with that of hand files for removing
gutta-percha and sealer from root canals.
Methodology
The root canals of fifty-four human
extracted maxillary central incisors were cleaned and
shaped using a crown-down technique to a size 40 and
filled with gutta-percha and a zinc oxide–eugenol-based
sealer using a lateral compaction technique. Teeth
were divided into three groups according to the
technique used for removing the root filling material:
group I – Gates–Glidden burs and stainless steel hand
files up to size 50; group II – rotary technique with
NiTi Mtwo R files and additional Mtwo files to size
50, 0.04 taper; group III – reciprocating technique
with the Reciproc instrument R50, size 50, 0.05
taper. Chloroform was used as a solvent in all groups.
Teeth were then split longitudinally and photo-
graphed under 89 magnification. The images were
transferred to a computer, and the total canal space
and remaining filling material were quantified. The
ratio of remaining filling material to root canal periphery was computed with the aid of Image Tool
3.0 software. The mean percentages of remaining
filling material and time required to remove it were
compared using the Kruskal–Wallis and Mann–Whitney
tests (P < 0.05).
Results
The mean percentage of remaining filling
material was significantly higher (P < 0.05) in group
II, with Mtwo rotary files (12.17%), than in group I,
with the hand file technique (7.19%), and group III,
with Reciproc instruments (4.57%), which were sta-
tistically similar (P > 0.05). The time required to
remove filling material was significantly shorter
(P < 0.05) in group III (194 s), followed by group II
(365 s) and group I (725 s) (P < 0.05).
Conclusion
Remaining endodontic filling material
was observed on the canal walls of all teeth regardless
of the technique used. Hand files combined with
Gates–Glidden burs (group I) and the reciprocating
technique (group III) removed more filling material
from the canal walls than the Mtwo R files. The recip-
rocating technique was the most rapid method for
removing gutta-percha and sealer, followed by the
rotary technique and the hand file technique.
Keywords: nickel–titanium, Reciproc files, reciprocat-
ing motion, root canal retreatment, rotary instruments.
Received 24 July 2012; accepted 2 February 2013
terça-feira, 28 de maio de 2013
domingo, 26 de maio de 2013
EEC no ENDO MEETING ABO-OSASCO 28/JUNHO
Participe e envie seu resumo concorrendo na categoria de
painéis de caso clínico ou trabalho científico !!!
International Endodontic Journal may 2013 - Shaping ability of different single-file systems in severely curved root canals of extracted teeth
Aim
To compare the shaping ability of three different
single-file systems with Mtwo rotary instruments dur-
ing the preparation of curved root canals in extracted
teeth.
Methodology
A total of 80 root canals with cur-
vatures ranging between 25° and 35° were divided
into four groups of 20 canals. Based on radiographs
taken prior to instrumentation, the groups were
balanced with respect to the angle and the radius of
canal curvature. Canals were prepared to the follow-
ing apical sizes: Mtwo: size 30 using the single-length
technique; Reciproc, F360, and OneShape: size 25.
Using pre- and post-instrumentation radiographs,
straightening of the canal curvatures was determined
with a computer image analysis programme. Prepara-
tion time, changes in working length, and instrument failures were also recorded.
Results
During preparation, no file fractured. All
instruments maintained the original canal curvature
well with no significant differences between the
instrument systems (P = 0.792). Instrumentation
with Reciproc and OneShape was significantly faster
than with F360 and Mtwo (P < 0.05), while F360
was significantly faster than Mtwo (P < 0.05). No
significant differences were obtained regarding
changes in working length during instrumentation
with the different instruments (P = 0.784).
Conclusion
Under the conditions of this study, all
instruments respected the original canal curvature
well and were safe to use. The use of Reciproc and
OneShape instruments required less time to prepare
the curved canals compared with Mtwo and F360.
domingo, 19 de maio de 2013
Prof. Carlos Bueno no CONAO / Salvador-Bahia día 17/05/2013
Aula no Conao dia 17/05/2013
"Do tratamento ao retratamento: novos conceitos em endodontia."
congressistas presentes
Prof. Carlos Bueno ao centro com o Prof. Luis Rasquin (UNIME / presidente do evento) e sua esposa Profa. Fabíola Carvalho (UFBA) e também Profa. Tamara Schiavotelo (UNIME) - ex-aluna do Mestrado de Excelência em Endodontia da EEC e Cíntia Araújo (Dentsply)
Prof. Carlos Bueno com os alunos do Prof. Luis Rasquin e Profa. Tamara Schiavotelo
quarta-feira, 15 de maio de 2013
Nova Turma de Especialização em Endodontia da Equipe de Endodontia de Campinas
Sejam Todos Muito Bem Vindos!
domingo, 12 de maio de 2013
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