Effect of ultrasonic scaling and air polishing on the surface roughness of polyetheretherketone (PEEK) materials.

Dental instruments affect the different PEEK materials, as well as causing surface roughness in many restorative materials used in dentistry. Surface roughness that occurs in dental restorations can cause bacterial adhesion. It is clinically important to choose the dental instrument according to the type of PEEK used for dental implant or prosthetic restoration in the clinic.