Título: | CHARACTERIZATION OF MATERIALS AND PROCEDURES EMPLOYED IN TWO ROOT CANAL SYSTEM OBTURATION TECHNIQUES | ||||||||||||||||||||||||||||||||||||||||||||
Autor: |
PATRICIA DO NASCIMENTO MARTINS |
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Colaborador(es): |
ROBERTO RIBEIRO DE AVILLEZ - Orientador SIDNEI PACIORNIK - Coorientador |
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Catalogação: | 29/AGO/2003 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||||||||||||||||||||||||||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=3838&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=3838&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.3838 | ||||||||||||||||||||||||||||||||||||||||||||
Resumo: | |||||||||||||||||||||||||||||||||||||||||||||
The aim of this in vitro study was to evaluate the quality
of endodontics obturations in relation to apical and
marginal sealing comparing two obturation techniques:
lateral condensation and vertical condensation of warm
gutta-percha. Forty samples were used and submitted to
passive penetration of a 50% silver nitrate solution. The
samples were divided in two equal-sized groups. For each
group a different methodology was used. Group 1, with half
of the samples obturated by each different technique, was
prepared for optical microscopy (OM), digital image
processing (DIP) and atomic absorption spectrometry (AAS).
Group 2, again with half of the samples obturated by each
technique, was prepared for scanning electron microscope
(SEM). Using OM and DIP, the quality of the obturation was
evaluated and the percent of gutta-percha and sealer
present was quantified. Using AAS, the leakage of silver
was quantified. Finally, the marginal adaptation of
obturation materials in the root canal walls was evaluated
with SEM. Statistical analysis showed significant
differences in apical sealing produced by the two
obturation techniques and in the quality of obturation
fillings. In SEM observations, the vertical condensation
method showed a better adaptation to the dentin walls when
compared with lateral condensation at some regions of the
root canal.
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