Prospective multicenter observational study assessing whether dental implants undergo three-dimensional positional change between placement (T0) and pre-loading after osseointegration (T1). Two intraoral scans (STL) will be superimposed to quantify linear (mm) and angular (degrees) displacement. Clinical variables include insertion torque, primary and secondary ISQ, anatomical site, placement timing, operator-perceived bone density (Lekholm \& Zarb), bruxism, and night guard use. The primary endpoint is the 3D displacement at \~3-4 months. Multivariable analyses will explore associated factors.
Eligibility
Sex
ALL
Min age
18 Years
Max age
—
Healthy volunteers
No
Inclusion Criteria:
* Adults aged 18 years or older.
* Indication for a single implant-supported restoration.
* Good general health and absence of active periodontal disease.
* Willingness to provide written informed consent and to undergo two intraoral scans (immediately after implant placement - T0 - and before prosthetic loading - T1).
Exclusion Criteria:
* Uncontrolled systemic disease or any medical condition contraindicating implant surgery.
* High-risk antiresorptive therapy (e.g., intravenous bisphosphonates or denosumab).
* Pregnancy or breastfeeding, if applicable to local policy.
* Inability to attend the T1 follow-up visit or contraindication to intraoral scanning (e.g., limited mouth opening, severe gag reflex).
Primary outcome measure(s)
3D positional change (linear and angular) from T0 to T1 — 3-4 months post-placement (pre-loading visit). Linear displacement (mm) and angular change (degrees) assessed by superimposing post-surgical (T0) and pre-loading (T1) intraoral STL scans using certified software.
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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