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Hybrid PEEK-Acrylic Resin Prostheses and the All-on-4 Concept for Full-Arch Rehabilitation - Routine Group

Hybrid Polyetheretherketone (PEEK)-Acrylic Resin Prostheses and the All-on-4 Concept for Full-Arch Rehabilitation - Routine Group

Status
Active, not recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05589493
Acronym
AO4PEEKRG
Enrollment
39
Registered
2022-10-21
Start date
2017-11-13
Completion date
2026-07-31
Last updated
2022-10-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prosthesis Survival

Keywords

prosthesis, PEEK, All-on-4, All-on-four, dental implants

Brief summary

The goal of this observational study is to evaluate the outcome of a Poly-ether-ether-ketone - acrylic resin prosthesis for full-arch rehabilitation of the atrophic maxillae through the All-on-4 concept after five years of follow-up. The main question it aims to answer is: \- What is the survival outcome of the full-arch implant-supported Poly-ether-ether-ketone - acrylic resin prosthesis? The participants already rehabilitated with dental implants will receive a Poly-ether-ehter-ketone prosthesis as a definitive prosthesis.

Detailed description

Following the learning generated during a development study with implant supported fixed prostheses using polyetheretherketone (PEEK) material, it is necessary to evaluate the outcome of implant supported fixed prosthetic rehabilitations using PEEK material in a routine scenario, following optimized laboratory and treatment protocol. The study design will be a prospective single cohort to evaluate the long term outcome of fixed prosthetic implant supported rehabilitations. The cohort will be evaluated at 6 months, 12 months and annually thereafter until 5 years of follow-up. At each follow-up assessments multiple evaluaitons will be performed to assess the overall outcome of the restorations.

Interventions

A prosthetic full-arch rehabilitation of atrophic maxillae using a PEEk-acrylic resin prosthesis supported by dental implants following the All-on-4 Concept arrangement.

Sponsors

Invibio Ltd
CollaboratorINDUSTRY
Malo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Prospective cohort study

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients rehabilitated with immediate function implants for complete edentulous arches through the All-on-4 Concept. * Patients in need of definitive implant-supported restorations. * Written informed consent from each patient to participate in the study.

Exclusion criteria

\- Hindrance to provide written informed consent. (A patient cannot participate if no written consent is given)

Design outcomes

Primary

MeasureTime frameDescription
Survival of the prosthesis5 yearsEvaluation of the survival for the PEEK-acrylic resin implant-supported prosthesis; nominal (survival,failure)

Secondary

MeasureTime frameDescription
Incidence of biological complications5 yearsPeri-implant infection, abscess, fistulae, suppuration, sinus infection, gingival dehiscence; Nominal (no incidence, incidence)
Incidence of mechanical complications5 yearsLoosening or fracture of prosthetic components; Nominal (no incidence, incidence)
Marginal bone resorption5 yearsMeasured through periapical radiographs, in mm between the implant shoulder and the most apical portion of implant-bone contact; Scale
Denture staining5 yearsVeneer discoloration or staining. If JUVORA is exposed same discoloration or staining 0:heavily stained; 10: no stains
In mouth comfort5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Overall chewing feeling5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Oral Health Impact Profile OHIP-145 yearsLikert Scale (0=least impact/never, 4=highest impact/very often)
Patient tissue reaction5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Framework integrity5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Survival of the implants5 yearsEvaluation of the survival for implants supporting the PEEK-acrylic resin implant-supported prosthesis; nominal (survival,failure)
Manufacture issues5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Handling of material compared to metal5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Aesthetics5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Speech5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Fit5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Hygiene around the implants5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Hygiene - how much plaque/calculus adheres to the prosthesis5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Overall classification from KOL5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good
Veneer adhesion5 yearsVisual analogue scale (0-10 cm); 0:very poor; 10: very good

Countries

Portugal

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026