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Micro‐CT evaluation of filling of flattened root canals using a new premixed ready‐to‐use calcium silicate sealer by single‐cone technique
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2020-12-05 , DOI: 10.1002/jemt.23658 Karina I M C Tavares 1 , Jáder C Pinto 1 , Airton O Santos-Junior 1 , Fernanda F E Torres 1 , Juliane M Guerreiro-Tanomaru 1 , Mário Tanomaru-Filho 1
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2020-12-05 , DOI: 10.1002/jemt.23658 Karina I M C Tavares 1 , Jáder C Pinto 1 , Airton O Santos-Junior 1 , Fernanda F E Torres 1 , Juliane M Guerreiro-Tanomaru 1 , Mário Tanomaru-Filho 1
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The aim of this study was to evaluate the filling ability of a new premixed ready‐to‐use calcium silicate‐based sealer, in comparison with an epoxy resin‐based sealer by the single‐cone technique in flattened root canals. Thirty‐two flattened root canals of maxillary second premolars with buccal‐lingual diameter 4 or more times larger than the mesio‐distal diameter at 9 mm from the radiographic apex were selected. Root canals were prepared using Hyflex EDM 25/0.08 and additional preparation with ultrasonic tip Flatsonic and ProDesign Logic 25/0.03. After preparation, the root canals were filled with two root canal sealers (n = 16): Bio‐C Sealer or AH Plus using the single‐cone technique. Scanning was performed before and after root canal obturation using a Skycan 1176 micro‐computed tomography (micro‐CT) with an isotropic voxel size of 8.74 μm. The percentage of voids was analyzed in the cervical/middle thirds and in the apical third. Data were submitted to the Mann–Whitney test at a significance level of 5%. There was no statistical difference between Bio‐C Sealer and AH Plus (p > .05). The percentage of voids in the cervical/middle thirds was 8.94% (1.33–39.95) for Bio‐C Sealer and 9.30% (1.19–18.00) for AH Plus (p > .05). In the apical third, this percentage was 11.84% (4.85–27.00) for Bio‐C Sealer and 9.21% (1.34–28.78) for AH Plus (p > .05). By using the single‐cone technique, neither Bio‐C Sealer nor AH Plus provided a voids‐free root canal filling. Both sealers had similar filling ability in flattened root canals.
中文翻译：
使用新型预混即用型硅酸钙封闭剂单锥技术对扁平根管充填的显微 CT 评估
本研究的目的是评估一种新型预混即用型硅酸钙基封闭剂与采用单锥技术的环氧树脂基封闭剂在扁平根管中的充填能力。选择了 32 颗上颌第二前磨牙的扁平根管，其颊舌直径比 X 线顶点 9 mm 处的近远中直径大 4 倍或更多。使用 Hyflex EDM 25/0.08 准备根管，并使用超声波尖端 Flatsonic 和 ProDesign Logic 25/0.03 进行额外准备。准备好后，用两根根管封闭剂填充根管（n= 16)：Bio-C Sealer 或 AH Plus 使用单锥技术。使用 Skycan 1176 微型计算机断层扫描 (micro-CT) 进行根管充填前后扫描，各向同性体素大小为 8.74 μm。分析了宫颈/中三分之一和根尖三分之一的空隙百分比。数据以 5% 的显着性水平提交给 Mann-Whitney 检验。Bio-C Sealer 和 AH Plus 之间没有统计学差异（p > .05）。Bio-C Sealer 宫颈/中三分之一处的空隙百分比为 8.94% (1.33-39.95)，AH Plus 为 9.30% (1.19-18.00) ( p > .05)。在根尖三分之一处，Bio-C Sealer 的这一百分比为 11.84% (4.85-27.00)，AH Plus 的这一百分比为 9.21% (1.34-28.78) ( p > .05）。通过使用单锥技术，Bio-C Sealer 和 AH Plus 都没有提供无空隙的根管填充。两种封闭剂在扁平根管中具有相似的填充能力。
更新日期：2020-12-05
中文翻译：
使用新型预混即用型硅酸钙封闭剂单锥技术对扁平根管充填的显微 CT 评估
本研究的目的是评估一种新型预混即用型硅酸钙基封闭剂与采用单锥技术的环氧树脂基封闭剂在扁平根管中的充填能力。选择了 32 颗上颌第二前磨牙的扁平根管，其颊舌直径比 X 线顶点 9 mm 处的近远中直径大 4 倍或更多。使用 Hyflex EDM 25/0.08 准备根管，并使用超声波尖端 Flatsonic 和 ProDesign Logic 25/0.03 进行额外准备。准备好后，用两根根管封闭剂填充根管（n= 16)：Bio-C Sealer 或 AH Plus 使用单锥技术。使用 Skycan 1176 微型计算机断层扫描 (micro-CT) 进行根管充填前后扫描，各向同性体素大小为 8.74 μm。分析了宫颈/中三分之一和根尖三分之一的空隙百分比。数据以 5% 的显着性水平提交给 Mann-Whitney 检验。Bio-C Sealer 和 AH Plus 之间没有统计学差异（p > .05）。Bio-C Sealer 宫颈/中三分之一处的空隙百分比为 8.94% (1.33-39.95)，AH Plus 为 9.30% (1.19-18.00) ( p > .05)。在根尖三分之一处，Bio-C Sealer 的这一百分比为 11.84% (4.85-27.00)，AH Plus 的这一百分比为 9.21% (1.34-28.78) ( p > .05）。通过使用单锥技术，Bio-C Sealer 和 AH Plus 都没有提供无空隙的根管填充。两种封闭剂在扁平根管中具有相似的填充能力。
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