Réflexions sur la reconstruction prothétique de l’Articulation Temporo-Mandibulaire (ATM) à travers une étude biomécanique comparative entre sujets asymptomatique et pathologique

Abstract : This thesis deals with a biomechanical study of the Temporo-Mandibular Joint (TMJ); one of the objectives of this work is the definition of a complete approach, using modern tools, allowing the design of a personalized TMJ prosthesis. First of all, a tribometer reproducing the TMJ physiological conditions was designed and built, in order to study the interactions between porcine bone and a prosthetic material and to quantify their respective wears. Through this device, the relationships between the contact parameters and bone wear were determined. Personalized prosthetic design needs first to carry out “a state-of-the-art”. We defined a non invasive protocol for TMJ characterization. It corresponds to the acquisition of its current geometry and of the mandible elementary motions. In a second step, numerical simulations of rigid bodies and/or finite elements were achieved to obtain the mechanical quantities, such as stresses and strains, necessary for the prosthesis design. The entire protocol was conducted on two subjects: an asymptomatic one and a second one with condylar resorption. Personalized numerical models were built for each case. These models allowed us study the joint functioning of each subject. We made comparisons between these subjects and significant differences were found. It was proved that the changes produced by bone resorption have an impact on muscle activity, as well as contact forces in joints. This work allowed enhancing the fundamental knowledge regarding TMJ operating conditions. It also enabled to validate evaluation tools of the functional state of the joint. The approach developed during this thesis is applied by OBL society, specialized in the design of customed maxillofacial prostheses. The approach proposed in this work can also be used as an evaluation tool of existing prosthetic solutions, as well as future solutions
Document type :
Theses
Complete list of metadatas

https://hal.univ-lorraine.fr/tel-01751572
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 1:21:54 PM
Last modification on : Tuesday, April 10, 2018 - 1:26:58 AM

File

DDOC_T_2014_0335_ALVAREZ_AREIZ...
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01751572, version 1

Collections

Citation

Diego Alvarez Areiza. Réflexions sur la reconstruction prothétique de l’Articulation Temporo-Mandibulaire (ATM) à travers une étude biomécanique comparative entre sujets asymptomatique et pathologique. Autre. Université de Lorraine, 2014. Français. ⟨NNT : 2014LORR0335⟩. ⟨tel-01751572⟩

Share

Metrics

Record views

35

Files downloads

29