Biomechanical performance of an immature maxillary central incisor after revitalization: a finite element analysis

2019 ◽  
Vol 52 (10) ◽  
pp. 1508-1518 ◽  
Author(s):  
C. Bucchi ◽  
J. Marcé‐Nogué ◽  
K. M. Galler ◽  
M. Widbiller
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Central Incisor ◽  
Element Analysis ◽  
Maxillary Central Incisor

scholarly journals Stress evaluation of maxillary central incisor restored with different post materials: A finite element analysis

2020 ◽  
Vol 4 (1) ◽  
pp. 022-027
Author(s):  
Agarwal Samarth Kumar ◽  
Mittal Reena ◽  
Singhal Romil ◽  
Hasan Sarah ◽  
Chaukiyal Kanchan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Central Incisor ◽  
Element Analysis ◽  
Stress Evaluation ◽  
Maxillary Central Incisor

scholarly journals Biomechanical Effects of Different Auxiliary-Aligner Designs for the Extrusion of an Upper Central Incisor: A Finite Element Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
R. Savignano ◽  
R. Valentino ◽  
A. V. Razionale ◽  
A. Michelotti ◽  
S. Barone ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Computer Aided Design ◽  
Imaging Techniques ◽  
Central Incisor ◽  
Element Analysis ◽  
Maxillary Central Incisor ◽  
Force Moment ◽  
Aided Design ◽  
Effective Design

Aim. To evaluate the biomechanical effects of four different auxiliary-aligner combinations for the extrusion of a maxillary central incisor and to define the most effective design through finite element analysis (FEA). Materials and Methods. A full maxillary arch (14 teeth) was modelled by combining two different imaging techniques: cone beam computed tomography and surface-structured light scan. The appliance and auxiliary element geometries were created by exploiting computer-aided design (CAD) procedures. The reconstructed digital models were imported within the finite element solver (Ansys® 17). For the extrusion movement, the authors compared the aligner without an attachment with three auxiliary-aligner designs: a rectangular palatal attachment, a rectangular buccal attachment, and an ellipsoid buccal attachment. The resulting force-moment (MF) system delivered by the aligner to the target tooth and the tooth displacement were calculated for each scenario. Results. The maximum tooth displacement along the z-axis (0.07 mm) was obtained with the rectangular palatal attachment, while the minimum (0.02 mm) was obtained without any attachments. With the ellipsoid attachment, the highest undesired moments Mx and My were found. The rectangular palatal attachment showed the highest Fz (2.0 N) with the lowest undesired forces (Fx = 0.4 N; Fy = −0.2 N). Conclusions. FEA demonstrated that the rectangular palatal attachment can improve the effectiveness of the appliance for the extrusion of an upper central incisor.

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