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All on Four Versus All on Three Implant Treatment Concepts

All On-4 Versus All o-3 Implant Treatment Concepts for Rehabilitation of Atrophied Mandibular Ridge. A Study of Patient Satisfaction

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05912127
Enrollment
30
Registered
2023-06-22
Start date
2022-01-16
Completion date
2023-06-11
Last updated
2023-06-22

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

Conditions

Prosthesis Durability

Brief summary

the evaluation of patient satisfaction of All on-4 versus All on-3 implant treatment concepts rehabilitation of atrophied mandibular ridge.

Detailed description

Patients will be classified into 2 groups according to the implant treatment concept they received: * Group 1 (control group); included patients who received All on 4 implant-supported fixed restoration. The patients received 2 inclined implants anterior to the mental foramina and 2 vertical implants in the lateral incisor/canine areas. * Group 2 (test group); included patients who received All on 3 implant-supported fixed restoration. The patients received 2 inclined implants anterior to the mental foramina and 1 vertical implant in the midline of the mandible.

Interventions

DEVICEimplant supported fixed full arch prosthesis

the patients will receive screw-retained cast metal-ceramic fixed prostheses that replace lost gingival tissues with pink porcelain.

Sponsors

Mansoura University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Intervention model description

Patients will be classified into 2 groups according to the implant treatment concept they received: * Group 1 (control group); included 3 patients who received All on 4 implant-supported fixed restoration. The patients received 2 inclined implants anterior to the mental foramina and 2 vertical implants in the lateral incisor/canine areas. * Group 2 (test group); included 3 patients who received All on 3 implant-supported fixed restoration. The patients received 2 inclined implants anterior to the mental foramina and 1 vertical implant in the midline of the mandible.

Eligibility

Sex/Gender
ALL
Age
45 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* 1\. All patients already have implants inserted in their mandibular ridges According to the All on 4 or All on 3 concepts. 2\. They were healthy, free from any systemic diseases relating to bone resorption such as uncontrolled diabetes or osteoporosis. This was achieved through medical history and clinical examination by the physician. 3\. All patients have sufficient inter-arch space. 4. All patients are of angle class I maxillo-mandibular relationships. 5. All patients had maxillary conventional complete dentures.

Exclusion criteria

1\. Any neuromuscular disorders 2. Uncooperative patients \-

Design outcomes

Primary

MeasureTime frameDescription
patient satisfactionone yearPatient satisfaction was evaluated using a questionnaire based on visual analog scale (VAS)
crestal bone lossTwo yearbone loss was measured around the implants in mm

Countries

Egypt

Outcome results

None listed

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