Long-term sealing ability of Pulp Canal Sealer, AH-Plus, GuttaFlow and Epiphany
Long-term sealing ability of Pulp Canal Sealer, AH-Plus, GuttaFlow and Epiphany
复制标题
DOI：
10.1111/j.1365-2591.2007.01343.x
复制
发表时间：
2008-03-01
影响因子：
5
通讯作者：
Wataha, J. C.
中科院分区：
文献类型：
--
作者：
Bouillaguet, S.;Shaw, L.;Wataha, J. C.
目的评价4种现代牙髓封闭剂（Pulp Canal Sealer，PCS）、AH-Plus、GuttaFlow和Epiphany）的长期封闭能力。方法选择40颗人上颌磨牙的腭根，采用冠下技术（根尖尺寸40，锥度6%）进行根管预备。根用3%NaOCl、17%EDTA溶液灌溉，并用蒸馏水冲洗。使用单锥技术，用PCS、AH-Plus、GuttaFlow或Epiphany填充根管（n = 8）。填充后24小时，将根部连接到在压力（0.2巴）下填充有双蒸水的自动流量记录装置（Flodec（R）System）上以测量泄漏。流速进行了评估，在6，12或24小时和1年的storage.Results后，没有材料完全阻止流体流动。液体流量在6 h后减少，并在12 h后进一步减少。24小时后，PCS和AH-Plus允许的液体流量显著高于GuttaFlow和Epiphany。1年后，PCS允许比其他材料显著更多的液体流动。结论GuttaFlow和Epiphany允许较少的液体运动沿着填充直牙根。
Aim To evaluate the long-term sealing ability of four contemporary endodontic sealers [Pulp Canal Sealer (PCS), AH-Plus, GuttaFlow and Epiphany] using a fluid filtration technique.Methodology The palatal roots of 40 human maxillary molar teeth were selected and the root canal was prepared using a crown-down technique (apical size 40, 6% taper). Roots were irrigated with 3% NaOCl, 17% EDTA solution and rinsed with distilled water. Canals were filled with either PCS, AH-Plus, GuttaFlow or Epiphany using a single-cone technique (n = 8). Twenty-four hours after filling, the roots were connected to an automatic flow-recording device (Flodec((R)) System) filled with double-distilled water under pressure (0.2 bar) to measure leakage. Flow rates were assessed at 6, 12 or 24-h and after 1-year of storage.Results None of the materials fully prevented fluid flow. Fluid flow decreased after 6 h and decreased further after 12 h. After 24 h, PCS and AH-Plus allowed significantly more fluid flow than GuttaFlow and Epiphany. After 1 year, PCS allowed significantly more fluid flow than the other materials. No significant changes in leakage occurred between 24 h and 1 year.Conclusions GuttaFlow and Epiphany allowed less fluid movement along filled straight roots.