| Texto completo | |
| Autor(es): |
Pinto, Jader Camilo
;
Esteves Torres, Fernanda Ferrari
;
Santos Jr, Airton Oliveira
;
Medina Carita Tavares, Karina Ines
;
Guerreiro-Tanomaru, Juliane Maria
;
Tanomaru-Filho, Mario
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | BRAZILIAN ORAL RESEARCH; v. 35, p. 7-pg., 2021-01-01. |
| Resumo | |
The aim of this study was to assess the influence of micro-computed tomography (micro-CT) voxel size on the evaluation of debris accumulation after passive ultrasonic irrigation (PUI) in curved root canals prepared with rotary nickel-titanium files. Mesial root canals (n = 24) of mandibular molars with curvature between 25 degrees and 35 degrees were prepared using ProDesign Logic 30/.05 (PDL) or HyFlex EDM 25/.08 (HEDM). PUI was performed after root canal preparation of all root canals. The specimens were scanned using high-resolution (5 mu m voxel size) micro-CT imaging before and after experimental procedures. The percentage of debris was analyzed in the middle and apical thirds using images with 5,10 and 20 mu m voxel sizes. Data were compared using unpaired and paired Student's t-test, ANOVA and Tukey's statistical tests (alpha = 0.05). There were no differences among the debris analyses performed at different voxel sizes (5, 10 and 20 mu m) (p > 0.05). The percentage of debris was similar between the root canals prepared by PDL and HEDM before and after PUI (p > 0.05). In both groups, the percentage of debris decreased in the middle third after PUI (p < 0.05). Within the limitations of this ex vivo study, it can be concluded that the voxel sizes evaluated did not have a significant impact on the analysis of accumulated debris. However, the results showed a tendency for detection of more debris in the analysis performed using a lower voxel size. PUI decreased the debris accumulation in the middle third of curved root canals. (AU) | |
| Processo FAPESP: | 18/19665-6 - Efeito da aquisição e análise das imagens em micro-CT na avaliação das diferentes etapas do tratamento endodôntico em molares inferiores |
| Beneficiário: | Jáder Camilo Pinto |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 17/19049-0 - Avaliação das etapas do tratamento de canais radiculares, e das propriedades físico-químicas e biológicas de materiais à base de silicato tricálcico |
| Beneficiário: | Mario Tanomaru Filho |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |