Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT05079048 |
Other study ID # |
19/5/2020 |
Secondary ID |
|
Status |
Completed |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
July 1, 2017 |
Est. completion date |
November 30, 2019 |
Study information
Verified date |
October 2021 |
Source |
Cairo University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
comparing retention and patient satisfaction of implant-supported mandibular overdentures
retained by conventional nylon clip and metal housings for ball attachments versus PEEK clip
and housings
Description:
Background. Many patients suffer from lack of retention of conventional mandibular
overdentures due to loss of clip retention over time. Computer-aided design-computer-aided
manufacturing (CAD-CAM) milled polyetheretherketone PEEK materials may be used for
construction of retentive housing and clip for improving retention of implant-supported
overdentures.
Objective . To compare retention and patient satisfaction of implant-supported mandibular
overdentures retained by conventional nylon clip and metal housings for ball attachments
versus PEEK clip and housings.
Methods: Twenty-two participants were divided into 2 equal groups (n=11). The conventional
group received implant-supported mandibular overdentures retained by metal housings and nylon
retentive elements, while the PEEK group received implant-supported mandibular overdenture
retained by PEEK retentive element and housings.The PEEK retentive elements were made by
using computer-aided design and computer-aided manufacturing (CAD-CAM).Evaluation included
measuring the retention by applying a gradual pulling up force by forcemeter and patient
satisfaction with a 7-point visual analog scale (VAS) at overdenture insertion , 3,6, and 12
months subsequently by research interviewer.