Mechanical behavior of conceptual posterior dental crowns with functional elasticity gradient

Marcela Moreira Penteado, Joao Paulo Mendes Tribst, Amanda Maria De Oliveira Dal Piva, Pietro Ausiello, Fernando Zarone, Franklin Garcia-Godoy, Alexandre Luiz Souto Borges

Research output: Contribution to journalArticle

Abstract

Purpose: To evaluate the biomechanical behavior of monolithic ceramic crowns with functional elasticity gradient. Methods: Using a CAD software, a lower molar received a full-crown preparation (1.5 mm occlusal and axial reduction). The monolithic crown was modeled with a resin cement layer of 0.1 mm. Four groups were distributed according to the full crown elastic modulus (E):(a) Bioinspired crown with decreasing elastic modulus (from 90 to 30GPa); (b) Crown with increasing elastic modulus (from 30 to 90 GPa); (c) Rigid crown (90 GPa) and (d) Flexible crown (30 GPa). The model was exported to the analysis software and meshed into 385.240 tetrahedral elements and 696.310 nodes. Materials were considered isotropic, linearly elastic, and homogeneous, with ideal contacts. A 300-N load was applied at the occlusal surface and the base of the model was fixed in all directions. The results were required in maximum principal stress criterion. Results: Crowns consisting of layers with increasing elastic modulus presented intermediate results between the rigid and flexible crowns. Compared to the flexible crown, the bioinspired crown showed acceptable stress distribution across the structure with lower stress concentration in the tooth. In dental crowns the multilayer structure with functional elasticity gradient modifies the stress distribution in the restoration, with promising results for bioinspired design.

Original languageEnglish (US)
Pages (from-to)165-168
Number of pages4
JournalAmerican journal of dentistry
Volume32
Issue number4
StatePublished - Aug 1 2019

Fingerprint

Tooth Crown
Elasticity
Crowns
Elastic Modulus
Software
Resin Cements
Ceramics

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Penteado, M. M., Tribst, J. P. M., De Oliveira Dal Piva, A. M., Ausiello, P., Zarone, F., Garcia-Godoy, F., & Borges, A. L. S. (2019). Mechanical behavior of conceptual posterior dental crowns with functional elasticity gradient. American journal of dentistry, 32(4), 165-168.

Mechanical behavior of conceptual posterior dental crowns with functional elasticity gradient. / Penteado, Marcela Moreira; Tribst, Joao Paulo Mendes; De Oliveira Dal Piva, Amanda Maria; Ausiello, Pietro; Zarone, Fernando; Garcia-Godoy, Franklin; Borges, Alexandre Luiz Souto.

In: American journal of dentistry, Vol. 32, No. 4, 01.08.2019, p. 165-168.

Research output: Contribution to journalArticle

Penteado, MM, Tribst, JPM, De Oliveira Dal Piva, AM, Ausiello, P, Zarone, F, Garcia-Godoy, F & Borges, ALS 2019, 'Mechanical behavior of conceptual posterior dental crowns with functional elasticity gradient', American journal of dentistry, vol. 32, no. 4, pp. 165-168.
Penteado MM, Tribst JPM, De Oliveira Dal Piva AM, Ausiello P, Zarone F, Garcia-Godoy F et al. Mechanical behavior of conceptual posterior dental crowns with functional elasticity gradient. American journal of dentistry. 2019 Aug 1;32(4):165-168.
Penteado, Marcela Moreira ; Tribst, Joao Paulo Mendes ; De Oliveira Dal Piva, Amanda Maria ; Ausiello, Pietro ; Zarone, Fernando ; Garcia-Godoy, Franklin ; Borges, Alexandre Luiz Souto. / Mechanical behavior of conceptual posterior dental crowns with functional elasticity gradient. In: American journal of dentistry. 2019 ; Vol. 32, No. 4. pp. 165-168.
@article{a76b418ed83a4632bd911de2e31c83b7,
title = "Mechanical behavior of conceptual posterior dental crowns with functional elasticity gradient",
abstract = "Purpose: To evaluate the biomechanical behavior of monolithic ceramic crowns with functional elasticity gradient. Methods: Using a CAD software, a lower molar received a full-crown preparation (1.5 mm occlusal and axial reduction). The monolithic crown was modeled with a resin cement layer of 0.1 mm. Four groups were distributed according to the full crown elastic modulus (E):(a) Bioinspired crown with decreasing elastic modulus (from 90 to 30GPa); (b) Crown with increasing elastic modulus (from 30 to 90 GPa); (c) Rigid crown (90 GPa) and (d) Flexible crown (30 GPa). The model was exported to the analysis software and meshed into 385.240 tetrahedral elements and 696.310 nodes. Materials were considered isotropic, linearly elastic, and homogeneous, with ideal contacts. A 300-N load was applied at the occlusal surface and the base of the model was fixed in all directions. The results were required in maximum principal stress criterion. Results: Crowns consisting of layers with increasing elastic modulus presented intermediate results between the rigid and flexible crowns. Compared to the flexible crown, the bioinspired crown showed acceptable stress distribution across the structure with lower stress concentration in the tooth. In dental crowns the multilayer structure with functional elasticity gradient modifies the stress distribution in the restoration, with promising results for bioinspired design.",
author = "Penteado, {Marcela Moreira} and Tribst, {Joao Paulo Mendes} and {De Oliveira Dal Piva}, {Amanda Maria} and Pietro Ausiello and Fernando Zarone and Franklin Garcia-Godoy and Borges, {Alexandre Luiz Souto}",
year = "2019",
month = "8",
day = "1",
language = "English (US)",
volume = "32",
pages = "165--168",
journal = "American Journal of Dentistry",
issn = "0894-8275",
publisher = "Mosher and Linder, Inc",
number = "4",

}

TY - JOUR

T1 - Mechanical behavior of conceptual posterior dental crowns with functional elasticity gradient

AU - Penteado, Marcela Moreira

AU - Tribst, Joao Paulo Mendes

AU - De Oliveira Dal Piva, Amanda Maria

AU - Ausiello, Pietro

AU - Zarone, Fernando

AU - Garcia-Godoy, Franklin

AU - Borges, Alexandre Luiz Souto

PY - 2019/8/1

Y1 - 2019/8/1

N2 - Purpose: To evaluate the biomechanical behavior of monolithic ceramic crowns with functional elasticity gradient. Methods: Using a CAD software, a lower molar received a full-crown preparation (1.5 mm occlusal and axial reduction). The monolithic crown was modeled with a resin cement layer of 0.1 mm. Four groups were distributed according to the full crown elastic modulus (E):(a) Bioinspired crown with decreasing elastic modulus (from 90 to 30GPa); (b) Crown with increasing elastic modulus (from 30 to 90 GPa); (c) Rigid crown (90 GPa) and (d) Flexible crown (30 GPa). The model was exported to the analysis software and meshed into 385.240 tetrahedral elements and 696.310 nodes. Materials were considered isotropic, linearly elastic, and homogeneous, with ideal contacts. A 300-N load was applied at the occlusal surface and the base of the model was fixed in all directions. The results were required in maximum principal stress criterion. Results: Crowns consisting of layers with increasing elastic modulus presented intermediate results between the rigid and flexible crowns. Compared to the flexible crown, the bioinspired crown showed acceptable stress distribution across the structure with lower stress concentration in the tooth. In dental crowns the multilayer structure with functional elasticity gradient modifies the stress distribution in the restoration, with promising results for bioinspired design.

AB - Purpose: To evaluate the biomechanical behavior of monolithic ceramic crowns with functional elasticity gradient. Methods: Using a CAD software, a lower molar received a full-crown preparation (1.5 mm occlusal and axial reduction). The monolithic crown was modeled with a resin cement layer of 0.1 mm. Four groups were distributed according to the full crown elastic modulus (E):(a) Bioinspired crown with decreasing elastic modulus (from 90 to 30GPa); (b) Crown with increasing elastic modulus (from 30 to 90 GPa); (c) Rigid crown (90 GPa) and (d) Flexible crown (30 GPa). The model was exported to the analysis software and meshed into 385.240 tetrahedral elements and 696.310 nodes. Materials were considered isotropic, linearly elastic, and homogeneous, with ideal contacts. A 300-N load was applied at the occlusal surface and the base of the model was fixed in all directions. The results were required in maximum principal stress criterion. Results: Crowns consisting of layers with increasing elastic modulus presented intermediate results between the rigid and flexible crowns. Compared to the flexible crown, the bioinspired crown showed acceptable stress distribution across the structure with lower stress concentration in the tooth. In dental crowns the multilayer structure with functional elasticity gradient modifies the stress distribution in the restoration, with promising results for bioinspired design.

UR - http://www.scopus.com/inward/record.url?scp=85071589244&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85071589244&partnerID=8YFLogxK

M3 - Article

C2 - 31436935

AN - SCOPUS:85071589244

VL - 32

SP - 165

EP - 168

JO - American Journal of Dentistry

JF - American Journal of Dentistry

SN - 0894-8275

IS - 4

ER -