Prosthetic Management of All on Four Versus All on Six to Rehabilitate Completely Edentulous Maxillary Ridge Opposed by Natural Teeth

Not Applicable

Completed

• Conditions: Prosthesis Survival
• Interventions: Procedure: implant supported maxillary fixed prosthesis

• Registration Number: NCT06114069
• Lead Sponsor: Mansoura University

Brief Summary

the aim of the study to compare the anterior maxillary bone index changes for patient rehabilitated with implant supported fixed prosthesis opposed by natural teeth

Detailed Description

Not available

Study Timeline

• Study Start: 2022-05-10
• Study First Submitted: 2023-10-29
• Study First Submitted QC: 2023-10-29
• Study First Posted: 2023-11-02
• Status Verified: 2024-08
• Primary Completion: 2024-08-14
• Study Completion: 2024-08-14
• Last Update Submitted: 2024-11-19
• Last Update Posted: 2024-11-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

• 1. All patient wearing a maxillary implant supported overdenture or implant supported fixed restoration and mandibular natural teeth or fixed restoration within natural dentition.

  2. All patients were unsatisfied by the maxillary restoration and presented clear preference for a better prosthesis.

  3. They were healthy, free from any systemic diseases relating to bone resorption such as uncontrolled diabetics or osteoporosis. This was achieved through medical history and clinical examination by physician.

  4. At least one year passed after the last restoration. 5. At least 15 mm restorative space must be available (from the mucosa covering the crest of the residual ridge to proposed occlusal plane) to permit construction of all types of tested prosthesis (class I according to Ahuja and Cagna).195 This was detected by a tentative jaw relation.

Exclusion Criteria

• 1. Patients had head and neck radiotherapy, patients with bleeding disorders or hepatic patients.

  2. Patients with metabolic disorders as diabetes mellitus, osteoporosis and hepatic disorders which might affect implant lifespan.

  3. Long term immunosuppress and corticosteroid drug therapy. 4. Patient with abnormal habits as clenching and bruxism. 5. Smoking patient. 6. Uncooperative patients. 7. Neuromuscular diseases. 8. Patient with problems in TMJ.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
all on six group	implant supported maxillary fixed prosthesis	4 patients received 6-implant supported fixed prosthesis
all on four group	implant supported maxillary fixed prosthesis	4 patients received 4-implant supported fixed prosthesis

Primary Outcome Measures

Name	Time	Method
anterior area index	six months	outcome is being evaluated by radiograph

Trial Locations

Locations (1)

Amr Saeed; 🇪🇬 Mansoura, DK, Egypt