OBJECTIVE: To evaluate the appropriate intraoral repair procedures in PEEK (polyetheretherketone) restorations when there is a veneer fracture. STUDY DESIGN: The study groups were formed according to the presence or absence of fractured veneer material of PEEK restorations. PEEK specimens (N=91) were prepared with CAD/CAM in dimensions of 5× 5.4×13 mm and divided into 13 groups including the positive control group. 5000 thermocyclic was applied to the specimens, and then the repair bond strength (RBS) was made at a speed of 0.5 mm/min. The fracture surfaces of the specimens were examined under a stereomicroscope. SEM, EDX, XRD, AFM, and surface contact angle analyses were performed in terms of roughened surfaces of PEEK (N=16). Oneway ANOVA and independent sample t test were used for data analysis (α=0.05). RESULTS: The efficiency of surface treatment, the roughness and wettability of the acid and CoJet groups have increased. Acid etching was found to be the most effective surface treatment. The RBS values of the SuperBond groups in the repair procedures were found to be higher than the Visio.link group and were statistically significant (p=0.002). When evaluating failure modes, the mode most encountered among all groups was the mixed mode, and least was the cohesive mode. CONCLUSION: The presence or absence of fractured veneer during the repair of PEEKbased restorations does not affect the values of repair bond strength, and RBS values were also not statistically significant. © Science Printers and Publishers, Inc.