Custom and prefabricated PolyEtherKetoneKetone (PEKK) post-core systems bond strength: Scanning electron microscopy evaluation

Guven M. C., Dayan S. Ç., Yildirim G., Mumcu E.

MICROSCOPY RESEARCH AND TECHNIQUE, cilt.83, ss.804-810, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 83
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1002/jemt.23471
  • Dergi Adı: MICROSCOPY RESEARCH AND TECHNIQUE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), Biotechnology Research Abstracts, CAB Abstracts, Communication Abstracts, EMBASE, MEDLINE, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.804-810
  • Anahtar Kelimeler: fiber post, PEKK post, push-out, SEM, ENDODONTICALLY TREATED TEETH, ADHESIVE RESIN CEMENTS, FRACTURE-RESISTANCE, FIBER POST, STRESS-DISTRIBUTION, MICROTENSILE, RESTORATION, PLACEMENT, BEHAVIOR, AGENTS
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

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.