Biomechanical Effects of Various Bone-Implant Interfaces on the Stability of Orthodontic Miniscrews: A Finite Element Study.
J Healthc Eng
; 2017: 7495606, 2017.
Article
in En
| MEDLINE
| ID: mdl-29065641
ABSTRACT
INTRODUCTION:
Osseointegration is required for prosthetic implant, but the various bone-implant interfaces of orthodontic miniscrews would be a great interest for the orthodontist. There is no clear consensus regarding the minimum amount of bone-implant osseointegration required for a stable miniscrew. The objective of this study was to investigate the influence of different bone-implant interfaces on the miniscrew and its surrounding tissue.METHODS:
Using finite element analysis, an advanced approach representing the bone-implant interface is adopted herein, and different degrees of bone-implant osseointegration were implemented in the FE models. A total of 26 different FE analyses were performed. The stress/strain patterns were calculated and compared, and the displacement of miniscrews was also evaluated.RESULTS:
The stress/strain distributions are changing with the various bone-implant interfaces. In the scenario of 0% osseointegration, a rather homogeneous distribution was predicted. After 15% osseointegration, the stress/strains were gradually concentrated on the cortical bone region. The miniscrew experienced the largest displacement under the no osseointegra condition. The maximum displacement decreases sharply from 0% to 3% and tends to become stable.CONCLUSION:
From a biomechanical perspective, it can be suggested that orthodontic loading could be applied on miniscrews after about 15% osseointegration without any loss of stability.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Orthodontics
/
Osseointegration
/
Orthodontic Appliance Design
/
Bone-Implant Interface
Type of study:
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
J Healthc Eng
Year:
2017
Document type:
Article
Affiliation country: