|
Title:
|
Influence of the elastic modulus on the osseointegration of dental implants
|
|
Author:
|
Brizuela, Aritza; Herrero Climent, Mariano; Rios Carrasco, Elisa; Rios Santos, José Vicente; Pérez Antoñanzas, Roman; Manero, José María; Gil Mur, Francesc Xavier
|
|
Notes:
|
The load transfer from metallic prosthesis to tissue plays an important role in the success
of a designed device. From a mechanical behavior point of view, the load transfer will be favored
when the elastic modulus between the metallic implant and the bone tissue are similar. Titanium
and Ti-6Al-4V are the most commonly used metals and alloys in the field of dental implants,
although they present high elastic moduli and hence trigger bone resorption. We propose the
use of low-modulus -type titanium alloys that can improve the growth of new bone surrounding the
implant. We designed dental implants with identical morphology and micro-roughness composed
of: Ti-15Zr, Ti-19.1Nb-8.8Zr, Ti-41.2Nb-6.1Zr, and Ti-25Hf-25Ta. The commercially pure Ti cp and
Ti-6Al-4V were used as control samples. The alloys were initially mechanically characterized with a
tensile test using a universal testing machine. The results showed the lowest elastic modulus for the
Ti-25Hf-25Ta alloy. We implanted a total of six implants in the mandible (3) and maxilla (3) for each
titanium alloy in six minipigs and evaluated their bone index contact (i.e., the percentage of new bone
in contact with the metal—BIC%) after 3 and 6 weeks of implantation. The results showed higher
BIC% for the dental implants with lowest elastic modulus, showing the importance of decreasing the
elastic modulus of alloys for the successful osseointegration of dental implants.
postprint |
|
Subject(s):
|
-Implants dentals
-Implant dentures
-Implantes dentales
-Titani--Aliatges
-Titanium alloys
-Titanio--Aleaciones
-616.3 |
|
Rights:
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
|
Document type:
|
Article |
|
Published by:
|
MDPI
|
|
Share:
|
|
