Antunes Thiago Bessa Marconato, Bronzato Juliana Delatorre, Graciani Joice, Janini Ana Cristina Padilha, Fontenele Rocharles Cavalcante, Neto Francisco Haiter, de Almeida Gomes Brenda Paula Figueiredo, da Silva Marina Angélica Marciano
Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil.
Department of Stomatology, Public Health, and Forensic Dentistry, Ribeirão Preto School of Dentistry, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil.
Restor Dent Endod. 2025 May;50(2):e20. doi: 10.5395/rde.2025.50.e20. Epub 2025 May 21.
This study aimed to evaluate whether the agitation protocols using ultrasonic inserts or the XP-endo Finisher R file improved the removal of two different endodontic sealer remnants and the bond strength of fiberglass posts to dentin.
Seventy-two human teeth were selected. The canals were prepared with Reciproc 50 and Easy ProDesign 30/.10 and root filled according to the endodontic sealer groups: AH Plus or EndoSequence BC Sealer HiFlow. The samples were kept at 37ºC and 95% humidity for 28 days. During the post space preparation, the obturation was removed with Largo burs, and the groups were divided according to the irrigant agitation protocols (n = 12): no agitation, agitation with R1-Clearsonic associated with E1-Irrisonic ultrasonic inserts, or agitation with XP-endo Finisher R file. The fiberglass posts were cemented with RelyX ARC. The roots were sectioned into slices and submitted to the push-out test. Micro-computed tomography analysis was used to check the effectiveness of irrigating solution agitation in the elimination of remnants.
The cleaning protocols with agitation were more effective in increasing the bond strength of posts to dentin for both sealer groups compared to non-agitation (p < 0.05). There was no difference between the same cleaning protocols for the different sealers. Among the different thirds, there was no statistical difference for the same sealer in the different cleaning protocols (p > 0.05).
Both agitation protocols effectively clean root-filled canals sealed with resin-based and calcium silicate-based sealers during fiberglass post space preparation. These protocols result in improved bond strength compared to non-agitation methods.
本研究旨在评估使用超声插入物或XP-endo Finisher R锉的冲洗方案是否能更好地去除两种不同的根管封闭剂残留，以及玻璃纤维桩与牙本质之间的粘结强度。
选取72颗人牙。使用Reciproc 50和Easy ProDesign 30/.10对根管进行预备，并根据根管封闭剂组别进行根管充填：AH Plus或EndoSequence BC Sealer HiFlow。将样本置于37℃、湿度95%的环境中保存28天。在制备桩道时，用大的车针去除充填物，并根据冲洗液搅拌方案将样本分组（n = 12）：不搅拌、使用与E1-Irrisonic超声插入物相关的R1-Clearsonic搅拌，或使用XP-endo Finisher R锉搅拌。用RelyX ARC粘结玻璃纤维桩。将牙根切成薄片并进行推出试验。使用微计算机断层扫描分析来检查冲洗液搅拌在清除残留方面的有效性。
与不搅拌相比，两种封闭剂组中采用搅拌的清洁方案在提高桩与牙本质的粘结强度方面更有效（p < 0.05）。不同封闭剂的相同清洁方案之间没有差异。在不同的三分之一区域中，相同封闭剂在不同清洁方案下没有统计学差异（p > 0.05）。
在玻璃纤维桩道预备过程中，两种搅拌方案都能有效清洁用树脂基和硅酸钙基封闭剂充填的根管。与不搅拌方法相比，这些方案能提高粘结强度。
