TY - JOUR
T1 - Identification of Stress Fields in a Customized Mandibular Reconstruction Based on a Photoelastic Model
AU - Moreno-Garibaldi, Pablo
AU - Beltrán-Fernández, Juan Alfonso
AU - Yescas-Hernandez, Jorge Arturo
AU - González-Rebattu, Mauricio
AU - Carrera-Espinoza, Rafael
AU - Hernández-Gómez, Luis Héctor
AU - López-Liévano, Daniel Ramon
AU - Pava-Chipol, Nefi David
AU - Pava-Chipol, Joel Francisco
AU - Urriolagoitia-Calderon, Guillermo Manuel
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Tumors, trauma and infections are the main reasons for subjecting a patient to a bone reconstruction made with the use of bone grafts or prosthetic elements, using for example components such as osteosynthesis plates, meshes and screws for their stabilization.This study focuses on the photoelastic analysis of a customized prosthesis of the jaw for a patient diagnosed with osteonecrosis. A resin model was manufactured as follows: DICOM files were processed in ScanIP software to obtain an STL file that was used to generate an antagonist model of the healthy section of the jaw using CATIA software, then, models were printed in Acrylonitrile Butadiene Styrene (ABS). Following the resin casting technique, the printed model of the jaw was used to construct a resin model, which is tested to determine its mechanical behavior.After carrying out the photoelastic analysis, it was found that the assembly process generates stress concentration zones. Here, the stress reaches a maximum value after the application of a bite force of 130.9 N in the premolars. In this study near the premolars, 3 stress concentration zones were identified and overlap of stress fields is reveled.The results show the importance of planning in the design and assembly process to obtain the best results in the reconstruction, reducing in this way the risk of a surgical reoperation due to problems of rupture or loosening of the prosthesis.
AB - Tumors, trauma and infections are the main reasons for subjecting a patient to a bone reconstruction made with the use of bone grafts or prosthetic elements, using for example components such as osteosynthesis plates, meshes and screws for their stabilization.This study focuses on the photoelastic analysis of a customized prosthesis of the jaw for a patient diagnosed with osteonecrosis. A resin model was manufactured as follows: DICOM files were processed in ScanIP software to obtain an STL file that was used to generate an antagonist model of the healthy section of the jaw using CATIA software, then, models were printed in Acrylonitrile Butadiene Styrene (ABS). Following the resin casting technique, the printed model of the jaw was used to construct a resin model, which is tested to determine its mechanical behavior.After carrying out the photoelastic analysis, it was found that the assembly process generates stress concentration zones. Here, the stress reaches a maximum value after the application of a bite force of 130.9 N in the premolars. In this study near the premolars, 3 stress concentration zones were identified and overlap of stress fields is reveled.The results show the importance of planning in the design and assembly process to obtain the best results in the reconstruction, reducing in this way the risk of a surgical reoperation due to problems of rupture or loosening of the prosthesis.
UR - http://www.scopus.com/inward/record.url?scp=85074620593&partnerID=8YFLogxK
U2 - 10.1097/SCS.0000000000005901
DO - 10.1097/SCS.0000000000005901
M3 - Artículo
C2 - 31609943
AN - SCOPUS:85074620593
SN - 1049-2275
VL - 30
SP - 2358
EP - 2361
JO - The Journal of craniofacial surgery
JF - The Journal of craniofacial surgery
IS - 8
ER -