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Full Arch Rehabilitations Through the Contemporary All-on-4 Concept

NCT04769921 · Status: ACTIVE_NOT_RECRUITING · Type: OBSERVATIONAL · Enrollment: 43

Last updated 2025-08-21

No results posted yet for this study

Summary

It is necessary to generate more evidence on the outcome of contemporary protocols for full-arch rehabilitations supported by implants in immediate function in areas with limited quantity and density bone.

This research project aims to investigate the outcome of fixed prosthetic restorations supported by implants in immediate function for full-arch rehabilitation through the All-on-4 concept contemporary protocol, specifically: implant survival and success, prosthetic survival, marginal bone level and marginal bone level changes, soft tissue health parameters (Plaque index, Bleeding index, Pocket depth), incidence of biological and mechanical complications. A prospective cohort study design will be used in the investigation.

The sample of this study is estimated to consist in 43 patients rehabilitated with full-arch fixed prosthetic rehabilitations supported by implants in immediate function (All-on-4 concept) with 144 dental implants.

The cohort will be evaluated between baseline and 3 years of follow-up.

Conditions

  • Edentulous Jaw

Interventions

DEVICE

dental implants and abutments from Nobel Biocare

The implants will be inserted in an All-on-4 configuration; Abutments will be connected to the implants and serve as support for a full-arch implant-supported restoration.

Sponsors & Collaborators

  • Nobel Biocare

    collaborator INDUSTRY

  • Malo Clinic

    lead OTHER

Principal Investigators

  • Miguel A de Araújo Nobre, PhD · Malo Clinic

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-02-19
Primary Completion
2022-07-08
Completion
2025-08-31
FDA Device
Yes

Countries

  • Portugal

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04769921 on ClinicalTrials.gov