Article Type

Original Article


Restorative Dentistry



To study the impact of two surface treatments (air abrasion and piranha solution), and different manufacturing techniques of Polyetheretherketone (PEEK) compared with Fiber Post as a controlled group on the shear bond strength of the endodontically treated teeth.


35 single-rooted maxillary incisors were divided into five groups of 7 each. The fiber post was silanated according to manufacture and then bonded with dual-cure resin cement. While PEEK posts were made using various fabrication methods (Computer-aided design/computer-aided manufacturing (CAD/CAM) and Press), and were exposed to two surface treatments (air abrasion and piranha solution).


The study materials did not play a role in bond strength. The strength of the push-out bond varied significantly across 3 locations of the altered PEEK post. While the mean push-out test for fiber posts showed no significant difference, the mean push-out test for the acid etching PEEK was much greater than the air-abraded one.


Push-out bond strength of a PEEK post to resin cement when treated with piranha solution differs in a statistically significant way. The average push-out bond strength of the specially reconfigured PEEK post and fiber post varied significantly in each of the three areas (coronal, apical, and middle regions), with the cervical region exhibiting the greatest bond strength.


fiber posts, Polyetheretherketone posts, resin cement, shear bond strength