New Dental Implant with 3D Shock Absorbers and Tooth-Like Mobility-Prototype Development, Finite Element Analysis (FEA), and Mechanical Testing.
ISO 14801
biomaterials
dental implant
fatigue test
finite element analysis
titanium
Journal
Materials (Basel, Switzerland)
ISSN: 1996-1944
Titre abrégé: Materials (Basel)
Pays: Switzerland
ID NLM: 101555929
Informations de publication
Date de publication:
21 Oct 2019
21 Oct 2019
Historique:
received:
16
09
2019
revised:
08
10
2019
accepted:
18
10
2019
entrez:
24
10
2019
pubmed:
24
10
2019
medline:
24
10
2019
Statut:
epublish
Résumé
Once inserted and osseointegrated, dental implants become ankylosed, which makes them immobile with respect to the alveolar bone. The present paper describes the development of a new and original implant design which replicates the 3D physiological mobility of natural teeth. The first phase of the test followed the resistance of the implant to mechanical stress as well as the behavior of the surrounding bone. Modifications to the design were made after the first set of results. In the second stage, mechanical tests in conjunction with finite element analysis were performed to test the improved implant design. In order to test the new concept, 6 titanium alloy (Ti6Al4V) implants were produced (milling). The implants were fitted into the dynamic testing device. The initial mobility was measured for each implant as well as their mobility after several test cycles. In the second stage, 10 implants with the modified design were produced. The testing protocol included mechanical testing and finite element analysis. The initial testing protocol was applied almost entirely successfully. Premature fracturing of some implants and fitting blocks occurred and the testing protocol was readjusted. The issues in the initial test helped design the final testing protocol and the new implants with improved mechanical performance. The new prototype proved the efficiency of the concept. The initial tests pointed out the need for design improvement and the following tests validated the concept.
Sections du résumé
BACKGROUND
BACKGROUND
Once inserted and osseointegrated, dental implants become ankylosed, which makes them immobile with respect to the alveolar bone. The present paper describes the development of a new and original implant design which replicates the 3D physiological mobility of natural teeth. The first phase of the test followed the resistance of the implant to mechanical stress as well as the behavior of the surrounding bone. Modifications to the design were made after the first set of results. In the second stage, mechanical tests in conjunction with finite element analysis were performed to test the improved implant design.
METHODS
METHODS
In order to test the new concept, 6 titanium alloy (Ti6Al4V) implants were produced (milling). The implants were fitted into the dynamic testing device. The initial mobility was measured for each implant as well as their mobility after several test cycles. In the second stage, 10 implants with the modified design were produced. The testing protocol included mechanical testing and finite element analysis.
RESULTS
RESULTS
The initial testing protocol was applied almost entirely successfully. Premature fracturing of some implants and fitting blocks occurred and the testing protocol was readjusted. The issues in the initial test helped design the final testing protocol and the new implants with improved mechanical performance.
CONCLUSION
CONCLUSIONS
The new prototype proved the efficiency of the concept. The initial tests pointed out the need for design improvement and the following tests validated the concept.
Identifiants
pubmed: 31640243
pii: ma12203444
doi: 10.3390/ma12203444
pmc: PMC6829458
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
ID : PCD 7690/67/15.04.2016
Organisme : 'Iuliu Hațieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
ID : 22714/5/06.10.2011
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