Movement of Dental Implants During Osseointegration

NCT ID: NCT07297147

Last Updated: 2025-12-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2026-01-01

Study Completion Date

2027-10-01

Brief Summary

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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.

Detailed Description

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This is a prospective multicenter observational study designed to evaluate whether dental implants undergo measurable three-dimensional positional changes during the osseointegration period. The study will be conducted in three private dental clinics in Spain, each led by an experienced implantologist. Consecutive adult patients indicated for a single implant-supported restoration will be enrolled after providing written informed consent.

Immediately after implant placement (T0), a reference intraoral scan (STL format) will be obtained using a validated scanner. A second intraoral scan will be performed after approximately 3 to 4 months, prior to prosthetic loading (T1). The two STL datasets will be superimposed using certified metrology software to calculate both linear (mm) and angular (degrees) displacement of the implant position relative to stable reference structures. The software alignment protocol ensures a reproducible and rigid registration of both scans.

Clinical and procedural variables collected at surgery include insertion torque value (ITV), primary implant stability (ISQ1), implant site (maxilla or mandible; anterior, premolar, or molar region), timing of placement (immediate or delayed), and operator-perceived bone density according to the Lekholm and Zarb classification. At the pre-loading visit (T1), secondary stability (ISQ2) will be recorded together with information on bruxism and the use of night guards.

The primary outcome is the 3D positional change (linear and angular) of the implant between T0 and T1. Secondary outcomes include the evolution of implant stability (ISQ2-ISQ1), correlations between displacement and insertion torque, and the influence of anatomical and patient-related variables (site, bone quality, bruxism, and loading protocol) on implant micromotion.

All data will be anonymized and analyzed at the implant level. Descriptive statistics will summarize means, standard deviations, and confidence intervals. Paired comparisons will be used to test within-subject changes, and multivariable linear regression models will explore predictors of displacement. Statistical significance will be set at p \< 0.05.

The results of this study are expected to contribute to understanding whether clinically relevant implant micromovement occurs during osseointegration and to identify factors influencing this phenomenon, potentially guiding decisions on early loading and implant design optimization.

Conditions

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Dental Implants Osseointegration

Keywords

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Dental implants Osseointegration Intraoral scan Micromotion ISQ Insertion torque Bruxism

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Adults receiving a single dental implant

Consecutive adults indicated for a single implant-supported restoration treated in three private clinics in Spain. Care follows standard practice; no investigational interventions are mandated. The exposure of interest is the osseointegration period between implant placement (T0) and pre-loading (T1, \~3-4 months). At T0 and T1, intraoral scans (STL) are acquired and rigidly superimposed with certified software to quantify 3D positional change (linear, mm; angular, degrees). Clinical variables recorded include insertion torque, ISQ1/ISQ2, anatomical site (jaw/region), placement timing (immediate/delayed), operator-perceived bone density, and bruxism/night-guard use. Analyses are performed at the implant level (one implant per participant).

No interventions assigned to this group

Eligibility Criteria

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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).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Aula Dental Avanzada

OTHER

Sponsor Role lead

Responsible Party

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Guillem Esteve-Pardo

PhD

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Clínica Dental Esteve

Alicante, Alicante, Spain

Site Status

Clínica Dental Sánchez Nicolás

Cabezo de Torres, Murcia, Spain

Site Status

Clínica Dental García Marí

Santa Cruz de Tenerife, Tenerife, Spain

Site Status

Countries

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Spain

Central Contacts

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Guillem Esteve-Pardo, PhD

Role: CONTACT

Phone: +34 965215755

Email: [email protected]

Guillem Esteve-Pardo, PhD

Role: CONTACT

Facility Contacts

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Guillem Esteve-Pardo, PhD

Role: primary

Jose Antonio Sánchez-Nicolás, DDS

Role: primary

Antonio Luis García-Marí, DDS

Role: primary

Antonio Luis García-Marí, DDS

Role: backup

Other Identifiers

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MOVSOI

Identifier Type: -

Identifier Source: org_study_id