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Mandibular Overdentures vs All-on-4 With PEEK

NCT07137533 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 40

Last updated 2025-08-22

No results posted yet for this study

Summary

This study compares long-term peri-implant outcomes between two mandibular full-arch rehabilitation approaches-four-implant-retained overdentures and All-on-4 fixed prostheses-when both are fabricated with polyetheretherketone (PEEK) frameworks. While overdentures and All-on-4 prostheses are widely used, evidence on the clinical performance of PEEK frameworks in these modalities is scarce. By evaluating marginal bone loss and other peri-implant parameters, the research aims to clarify whether prosthetic design influences biological outcomes when using this high-performance polymer.

Conditions

  • Bone Loss in Jaw

Interventions

OTHER

Mandibular Four-Implant-Retained Overdenture (PEEK Framework); Mandibular All-on-4 Fixed Prosthesis (PEEK Framework)

Group I: Four-implant-retained mandibular overdenture with a CAD/CAM-milled PEEK framework and acrylic denture teeth, retained via attachment mechanisms; implants placed in lateral incisor and first premolar sites; delayed loading protocol. Group II: Mandibular All-on-4 fixed prosthesis with a CAD/CAM-milled PEEK framework and acrylic denture teeth; two anterior straight and two posterior tilted implants placed in lateral incisor and first premolar sites; delayed loading protocol.

Sponsors & Collaborators

  • Mansoura University

    collaborator OTHER

  • Menoufia University

    lead OTHER

Eligibility

Min Age
40 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-08-01
Primary Completion
2025-10-01
Completion
2025-10-25

Countries

  • Egypt

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 NCT07137533 on ClinicalTrials.gov