Abou-Ayash, Samir; Schimmel, Martin; Worni, Andreas; Enkling, Norbert (2023). O-Ring Attachments on One-Piece Mini Dental Implants: In-Vitro Analysis of Retention Force Reproducibility Using Different Pristine Matrix-O-Ring Combinations. The international journal of prosthodontics, 36(1), 59–62. Quintessence Publishing 10.11607/ijp.7055
![[img]](https://boris.unibe.ch/style/images/fileicons/text.png) |
Text
wsMrTj-article.pdf - Accepted Version Restricted to registered users only Available under License Publisher holds Copyright. Download (972kB) |
PURPOSE
To analyze the influence of pristine matrix and O-ring dimensions on retention force and reproducibility in single one-piece mini dental implants (MDIs) with ball patrices under in vitro conditions.
MATERIALS AND METHODS
Three different matrix and O-ring combinations (MH1-MH3) were evaluated (n = 50 per group) on 1.8-mm-diameter implants. The matrices were manually mounted on the implants and were subsequently removed in a vertical linear manner using a metal pin with two strain gauges, recording the maximum force during disconnection. After five disconnections, the O-rings were exchanged, and the mean retention force was calculated, resulting in 50 values for each matrix and O-ring combination. Mean retention forces, SDs, and 95% CI were calculated. Analysis of variance was used to test the global differences, and post hoc pairwise comparisons were subsequently applied. The level of significance was set to P < .05.
RESULTS
ANOVA (global P < .0001) and pairwise comparisons (all P < .0001) demonstrated statistically significant differences among the three different matrix and O-ring combinations, with mean values of 5.18 N (MH 1), 6.73 (MH 2), and 9.08 (MH 3). Within each combination, retention force variations of > 1 N could not be demonstrated; ie, by exchanging O-rings, a similar retention force can be reestablished.
CONCLUSION
Matrix and O-ring dimensions have a significant influence on retention forces in one-piece MDIs. Pristine O-rings demonstrated highly reproducible initial retention forces in all matrices.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology |
UniBE Contributor: |
Abou-Ayash, Samir, Schimmel, Martin, Enkling, Norbert |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
1942-4426 |
Publisher: |
Quintessence Publishing |
Language: |
English |
Submitter: |
Tina Lauper |
Date Deposited: |
04 May 2021 10:17 |
Last Modified: |
14 Mar 2023 00:10 |
Publisher DOI: |
10.11607/ijp.7055 |
PubMed ID: |
33625384 |
BORIS DOI: |
10.7892/boris.153460 |
URI: |
https://boris.unibe.ch/id/eprint/153460 |
Actions (login required)
 |
Edit item |