PEEK in Dental Implantology: Properties and Clinical Indications

PEEK is the dark horse of implant prosthetics: a 90 MPa polymer that, unlike zirconia, will not abrade a titanium abutment.

Why PEEK for implants

Its elastic modulus (~3–4 GPa) is close to bone, reducing stress shielding, and it is radio-lucent so the peri-implant bone stays visible on X-ray. That matters for year-over-year monitoring.

Where it fits

• Temp abutments during healing — gentle on soft tissue.
• Hybrid provisional frameworks on multi-unit abutments.
• Patient-specific bars where metal allergy is a concern.

PEEK is not a zirconia replacement for the crown — it is the smart choice for the substructure and temporary stages.

Explore machinable PEEK discs validated for implant provisionals.

Why the mouth likes PEEK

PEEK's elastic modulus (3–4 GPa) sits between bone (about 20 GPa) and titanium (110 GPa). A PEEK abutment flexes with load instead of shielding bone, which some clinicians prefer for narrow ridges.

Clinical placement checklist

1. Confirm the implant platform and pick a matching PEEK crestal module.
2. Silica-coat the coronal 2 mm if you will bond a crown.
3. Torque to the manufacturer value; PEEK sleeves need the exact driver.
4. Avoid in patients with a confirmed PEEK allergy (rare but documented).

PEEK is a partner to the implant, not a replacement for a titanium base.