An interventional study of four implants inserted in the mandible and distributed in quadrilateral manner and SFI-Bar had been inserted in Patient Satisfaction and Prosthetic Complication, sponsored by Mansoura University. Completed at 1 site in Egypt. Open to participants aged 50 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-02-13.
Sponsored by Mansoura University · Not applicable, Interventional, and Treatment
Purpose: This clinical study aimed to evaluate patient satisfaction and prosthetic complications of different distributions of four implants supported mandibular overdentures using Stress free implant bar (SFI-Bar attachments). Evaluation was done for patient satisfaction and prosthetic complications
Purpose: This clinical study aimed to evaluate patient satisfaction and prosthetic complications of different distributions of four implants supported mandibular overdentures using Stress free implant bar (SFI-Bar attachments). Materials and Methods: thirty completely edentulous patients with insufficient retention and stability of their conventional mandibular denture were eligible for this study. All patients received new maxillary and mandibular dentures. The patients were randomly divided into three groups. (G1): four implants were distributed in interforaminal distance, 2-Implant were inserted in canine region and 2- implant 8mm posterior to canine implants. (G2): 4-implants were distributed in quadrilateral distribution, 2-Implant in canine region and 2-Implant were inserted 26mm posterior to canine implant. Patient satisfaction was evaluated by visual analogue scale and prosthetic complications were evaluated on the patient level and implant patients.
256 studies on the registry are indexed under Patient Satisfaction; 127 are open to participants now.
This study's enrollment of 30 is below the median of 90 across 196 interventional studies indexed under Patient Satisfaction.
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Normal jaw relation Good oral hygiene Patient with class I or class II inter-rach space.
Exclusion Criteria:
Patients with TMJ disorder and heavy smokers for more than 10 cigarettes per day.
Uncooperative patient. Unfavorable occlusion. Limited restoration space (less than 12 mm).
4-implants were distributed in quadrilateral distribution, 2-Implant in canine region and 2-Implant were inserted 26mm posterior to canine implant.
Procedure: four implants inserted in the mandible and distributed in quadrilateral manner and SFI-Bar had been inserted
Receive four implants distributed in interforaminal distance, 2-Implant were inserted in canine region and 2- implant 8mm posterior to canine implants.
Procedure: four implants inserted in the mandible and distributed in quadrilateral manner and SFI-Bar had been inserted
Implant positions were planned at canines for both groups. (Intraforaminal): posterior implants are 8 mm posterior to the canine implants \[minimum allowed inter-implant distance for SFIbars (Quadrilateral): posterior implants are 26 mm posterior to the canine implants \[Maximum allowed inter-implant distance for SFI-bars
Also known as: four implants inserted in the mandible and distributed in curved manner and SFI-Bar had been inserted
patient satisfaction
A visual analog scale (VAS) and oral health-related quality of life (OHRQoL) were used for evaluating patient satisfaction. Participants in the VAS were instructed to draw a vertical line anywhere along a horizontal line that was used as a scale, with 0 mm representing the worst and 100 mm representing the best. at the point that most accurately reflected their perceptions. General satisfaction, denture stability and retention, occlusion, comfort, ease of cleaning, ease of speaking, ease of chewing, bolus quality, and aesthetics
Time frame: one year
prosthetic complications
The complications include (1) complications of attachments: abutment fracture, abutment screw loosening, screw fracture, wear/distortion of retentive components, activation of retentive components, retention loss and replacement of retentive components, and separation of retentive components from the denture base, (2) technical complications of mandibular over-dentures: reline, fracture/remake, teeth wear, teeth separation/fracture, (3) technical complications of maxillary dentures: reline, fracture/remake, teeth wear, teeth separation/fracture, (4) Soft tis-sue complications of mandibular overdentures and maxillary dentures: mucositis, soreness, ulcer decubitus, hyperplasia, and flabbyridge
Time frame: one year
Plan to share: No
This study is completed, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.
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Mansoura University