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.
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.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
39
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.
Malo Clinic
Lisbon, Portugal
Survival of the prosthesis
Evaluation of the survival for the PEEK-acrylic resin implant-supported prosthesis; nominal (survival,failure)
Time frame: 5 years
Survival of the implants
Evaluation of the survival for implants supporting the PEEK-acrylic resin implant-supported prosthesis; nominal (survival,failure)
Time frame: 5 years
Incidence of biological complications
Peri-implant infection, abscess, fistulae, suppuration, sinus infection, gingival dehiscence; Nominal (no incidence, incidence)
Time frame: 5 years
Incidence of mechanical complications
Loosening or fracture of prosthetic components; Nominal (no incidence, incidence)
Time frame: 5 years
Marginal bone resorption
Measured through periapical radiographs, in mm between the implant shoulder and the most apical portion of implant-bone contact; Scale
Time frame: 5 years
Denture staining
Veneer discoloration or staining. If JUVORA is exposed same discoloration or staining 0:heavily stained; 10: no stains
Time frame: 5 years
In mouth comfort
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Overall chewing feeling
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
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Time frame: 5 years
Oral Health Impact Profile OHIP-14
Likert Scale (0=least impact/never, 4=highest impact/very often)
Time frame: 5 years
Patient tissue reaction
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Framework integrity
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Veneer adhesion
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Manufacture issues
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Handling of material compared to metal
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Aesthetics
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Speech
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Fit
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Hygiene around the implants
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Hygiene - how much plaque/calculus adheres to the prosthesis
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years
Overall classification from KOL
Visual analogue scale (0-10 cm); 0:very poor; 10: very good
Time frame: 5 years