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Active, not recruitingNCT04006782Updated Feb 27, 2025

Narrow Dental Implants in Multiple Fixed Prosthesis: A Controlled Clinical Trial

An interventional study of Narrow dental implants in Edentulous Alveolar Ridge, sponsored by Fundación Eduardo Anitua. Active, not recruiting at 1 site in Spain. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-27.

Sponsored by Fundación Eduardo Anitua · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jan 2026, 8 months ago, but the record still lists the study as active, not recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
48
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The objective of this study is to evaluate the survival of narrow dental implants (≤ 3,5 mm) in multiple fixed prostheses in comparison with standard diameter dental implants (≥ 3,75 mm) after 5 years of follow-up. The hypothesis of the study is that narrow dental implants under the evaluated conditions, have the same survival rate and clinical performance than the standard diameter implants.

02

Conditions studied

  • Edentulous Alveolar Ridge

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Keywords

  • edentulous
  • narrow alveolar ridges
03

In context

Mouth, Edentulous

244 studies on the registry are indexed under Mouth, Edentulous; 37 are open to participants now.

This study's enrollment of 48 is above the median of 30 across 187 interventional studies indexed under Mouth, Edentulous.

Browse Mouth, Edentulous studies →

Lead sponsor

Fundación Eduardo Anitua is the lead sponsor of 11 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Patients of legal age (>18 years) of both sexes.
  • Clinical need of multiple fixed alveolar ridge rehabilitations.
  • Clinical suitability to insert, at least, one narrow dental implant splinted to a standard diameter dental implant.
  • Signature of the informed consent

Exclusion criteria

Exclusion Criteria:

  • Presence of an active infection
  • Being under active treatment with, or have received in the las 30 days treatment with radiotherapy, chemotherapy, immunosuppressors, systemic corticosteroids and/or anticoagulants.
  • Presence of severe haematologic disorders.
  • Chronic treatment with non steroidal anti-inflammatory drugs (NSAID) or other aniinflammatory drugs.
  • Previous diagnosis of chronic hepatitis or liver cirrhosis.
  • Presence of Diabetes mellitus with improper metabolic control (glycosylated haemoglobine higher that 9%).
  • Patients subjected to dialysis.
  • Presence of malignant tumours, haemangioma or angioma in the surgical area.
  • History of ischaemic cardiopathy in the las year.
  • Pregnancy or plan to getting pregnant during the study.
  • Metabolic bone disease
  • Patientd receiving treatment with oral or intravenous biphosphonates.
  • Any other condition incompatible with the participation in the study,
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
48 participants (actual)

Study arms

  • Other
    Narrow dental implants in multiple fixed prosthesis

    Device: Narrow dental implants

Interventions

  • DeviceNarrow dental implants

    Insertion of narrow dental implants in multiple fixed prosthesis

06

What researchers measure

Primary outcomes

  1. Survival after 5 years of follow-up

    Implant survival after 5 years of follow-up

    Time frame: 5 years in comparison with the baseline

Secondary outcomes

  1. Marginal Bone Loss

    Evolution of the peri-implant bone level along the study follow up

    Time frame: 1, 3 and 5 years in comparison with the baseline

07

Study locations

1 site
  • Clínica Dental Eduardo Anitua
    Vitoria, Spain
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 27, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04006782
Lead sponsor
Fundación Eduardo Anitua
Responsible party
Sponsor
First posted
Jul 5, 2019
Start date
Aug 1, 2019
Primary completion
Jan 31, 2026 (estimated)
Completion
Jan 31, 2026 (estimated)
Last update
Feb 27, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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Discussion

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