Detalhes bibliográficos
| Ano de defesa: |
2016 |
| Autor(a) principal: |
Pacheco, Paulo de Tarso Gondim |
| Orientador(a): |
Silva, Emmanuel João Leal Nogueira da |
| Banca de defesa: |
Moreira, Edson Jorge Lima,
Antunes, Henrique dos Santos,
Kalil, Marcos da Veiga |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade do Grande Rio
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Odontologia
|
| Departamento: |
Unigranrio::Odontologia
|
| País: |
Brasil
|
| Palavras-chave em Português: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://localhost:8080/tede/handle/tede/131
|
Resumo: |
The present study evaluated the canal transportation and the centering ability of ProTaper Next (PTN) and Twisted File Adaptive (TFA) systems using micro- computed tomographic (micro-CT) imaging. Twenty isthmus-containing mesial roots of mandibular molars were anatomically matched based on similar morphological dimensions using micro-CT evaluation (resolution of 14.25 μm) and assigned to 2 experimental groups (n = 10) according to the system used for root canal preparation: PTN and TFA groups. Then, the specimens were scanned again and the matched images of the mesial canals, before and after preparation, were examined at 3 cross-section levels (3-mm, 5-mm and 7-mm from the apical end of the root) to analyze the canal transportation and the centering ratio. Independent samples t-test was used to compare the canal transportation and centering ratio between the groups. All statistical procedures were performed with a significance level set at 5%. Root canals prepared with either PTN or TFA systems were found to present similar canal transportation and centering ratio at all levels (p > 0.05). Both systems presented similar results regarding canal transportation and centering ability. |
