What might be noticed?
Movement or an altered feeling in the restoration, which cannot establish a diagnosis alone.
← All explanationsImplant screw loosening
Why can an implant crown become loose?
Implant screw loosening occurs when a screw connection loses its secure seating. The crown or abutment may then move even while the implant body remains anchored in bone. The affected component and underlying cause need assessment.
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A connection between components
A screw may join the abutment to the implant or the restoration to its abutment. Controlled tightening creates preload that helps hold the connection together.
Movement needs attention
Loss of secure seating can allow movement. Continued loading may contribute to further component damage. Loosening is not a normal maintenance condition to ignore.
More than tightening alone
Fit, components and loading are assessed before repair. The appropriate technique and tightening torque depend on the implant system.
Read the full explanation
A connection between components
A screw may join the abutment to the implant or the restoration to its abutment. Controlled tightening creates preload that helps hold the connection together.
Movement needs attention
Loss of secure seating can allow movement. Continued loading may contribute to further component damage. Loosening is not a normal maintenance condition to ignore.
More than tightening alone
Fit, components and loading are assessed before repair. The appropriate technique and tightening torque depend on the implant system.
Notes on the teaching images
- Fictional teaching illustration, not a patient case or treatment result.
At a glance
What is the next step?
Arrange prompt assessment and avoid additional loading meanwhile.
What is planned?
Correction matched to the cause and the implant system.
Knowledge in motion
Explained in 36 seconds.
Three steps. No audio.
Each scene can also be selected manually.
Silent educational film with German on-screen text and simplified teaching images. Not a patient case or a promised treatment outcome. The full English explanation is available as text.
Often confused
Loosening or fracture?
A loose screw is not the same as a fractured screw. Both can cause movement; component examination identifies the problem.
Quick answers
Does this mean the implant itself is loose?
Not necessarily. Movement can originate from a connection above the implant body. Examination determines whether the implant in bone is also affected.
Can I tighten the screw myself?
No. Access, appropriate instruments, component condition and the system-specific torque require professional assessment. Home attempts can damage the restoration.
Is retightening always enough?
No. Incorrect fit or loading and damaged components may require further correction. The cause should also be assessed.
At the practice
For the appointment
You can bring this question to your appointment:
Why has the connection loosened, and are the screw, abutment and crown intact?
An examination can clarify the finding and any need for referral.
Arrange an assessmentAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- Preload
- The clamping force generated in a screw connection during controlled tightening.
- Torque
- The turning effect applied during tightening; specifications depend on the system.
Make the distinction
A loose screw is not the same as a fractured screw. Both can cause movement; component examination identifies the problem.
Sources and context
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.