Torque values for implant-supported prostheses: table and protocol
Correct torque is the main controllable factor in the longevity of a screw-retained prosthesis. Reference values and application protocol below.
Reference values
| Component | Torque | Note |
|---|---|---|
| Impression transfer | 10 Ncm | Stabilisation only, hand-tight |
| CAD/CAM scan body | 10 Ncm | Do not exceed |
| Abutment / Mini Abutment on implant | 32 Ncm | Calibrated torque wrench |
| Prosthetic screw on Mini Abutment | 10 Ncm | Passive framework required |
| Hex abutment screw | 32 Ncm | Per system reference |
Tightening protocol
- Clean, dry interface.
- Hand-tighten to full seating, radiographically confirmed in multiple-unit cases.
- Apply final torque with a calibrated wrench.
- Use a cross sequence on multiple-unit frameworks.
- Re-torque to the same value after 10 minutes to compensate settling.
Frequently asked questions
- What torque applies to the prosthetic screw on a Mini Abutment?
- 10 Ncm with a passive framework. The Mini Abutment itself is torqued to 32 Ncm on the implant.
- Can the prosthetic screw be reused?
- No. The definitive screw is a consumable; plastic deformation reduces preload on subsequent tightening.