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Custom and prefabricated PolyEtherKetoneKetone (PEKK) post-core systems bond strength: Scanning electron microscopy evaluation.
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2020-03-13 , DOI: 10.1002/jemt.23471 Melahat Çelik Güven 1 , Süleyman Çağatay Dayan 2 , Gülhan Yıldırım 1 , Emre Mumcu 3
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2020-03-13 , DOI: 10.1002/jemt.23471 Melahat Çelik Güven 1 , Süleyman Çağatay Dayan 2 , Gülhan Yıldırım 1 , Emre Mumcu 3
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The present study evaluated the bond strengths of prefabricated PolyEtherKetoneKetone (PEKK) posts, PEKK posts custom‐configured according to root‐canal size, and conventional fiber posts. A total of 30 maxillary incisors were randomly divided into three groups, as follows: Group 1: fiber posts; Group 2: prefabricated PEKK posts; Group 3; custom‐made PEKK posts. Following endodontic treatment, post spaces were prepared, and posts were cemented with resin cement. Push‐out bond strength testing was performed using a universal testing machine, and fractures modes were examined under a scanning electron microscope. Data were analyzed using One‐way ANOVA and Tukey's HSD tests, with the level of significance set at .05. The highest bond‐strength values in the cervical section were observed with the custom‐made PEKK post (17.3470 MPa), whereas the highest bond‐strength values in the middle and apical sections were observed with the conventional fiber posts (11.5375 MPa and 6.8625 MPa, respectively). Bond‐strength values for all posts systems decreased in a cervical to apical direction. PEKK posts are a suitable alternative to fiber posts. Although custom‐made PEKK posts demonstrated better bond strength than prefabricated PEKK posts, further studies are needed to evaluate their clinical performance.
中文翻译：
定制和预制的PolyEtherKetoneKetone（PEKK）后核系统粘合强度：扫描电子显微镜评估。
本研究评估了预制的PolyEtherKetoneKetone（PEKK）桩，根据根管尺寸定制配置的PEKK桩和常规纤维桩的粘结强度。将总共30颗上颌切牙随机分为三组：第1组：纤维桩；第2组：预制PEKK职位；第3组；定制的PEKK帖子。牙髓治疗后，准备桩位，并用树脂水泥固结桩。使用万能测试机进行推出粘结强度测试，并在扫描电子显微镜下检查断裂模式。使用单向方差分析和Tukey的HSD测试分析数据，显着性水平设置为0.05。使用定制的PEKK桩（17.3470 MPa）观察到了宫颈切片中的最高粘结强度值，而在常规纤维桩中，中部和根部的粘结强度最高（分别为11.5375 MPa和6.8625 MPa）。所有桩系统的粘结强度值从颈椎向根尖方向降低。PEKK柱是纤维柱的合适替代品。尽管定制的PEKK桩表现出比预制PEKK桩更好的粘结强度，但仍需要进一步研究以评估其临床性能。
更新日期：2020-03-13
中文翻译：
定制和预制的PolyEtherKetoneKetone（PEKK）后核系统粘合强度：扫描电子显微镜评估。
本研究评估了预制的PolyEtherKetoneKetone（PEKK）桩，根据根管尺寸定制配置的PEKK桩和常规纤维桩的粘结强度。将总共30颗上颌切牙随机分为三组：第1组：纤维桩；第2组：预制PEKK职位；第3组；定制的PEKK帖子。牙髓治疗后，准备桩位，并用树脂水泥固结桩。使用万能测试机进行推出粘结强度测试，并在扫描电子显微镜下检查断裂模式。使用单向方差分析和Tukey的HSD测试分析数据，显着性水平设置为0.05。使用定制的PEKK桩（17.3470 MPa）观察到了宫颈切片中的最高粘结强度值，而在常规纤维桩中，中部和根部的粘结强度最高（分别为11.5375 MPa和6.8625 MPa）。所有桩系统的粘结强度值从颈椎向根尖方向降低。PEKK柱是纤维柱的合适替代品。尽管定制的PEKK桩表现出比预制PEKK桩更好的粘结强度，但仍需要进一步研究以评估其临床性能。
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