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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Biomechanical behavior of titanium and zirconia frameworks for implant-supported full-arch fixed dental prosthesis

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Author(s):
Tiossi, Rodrigo [1] ; Gomes, Erica Alves [2] ; Lapria Faria, Adriana Claudia [2] ; Silveira Rodrigues, Renata Cristina [2] ; Ribeiro, Ricardo Faria [2]
Total Authors: 5
Affiliation:
[1] Univ Estadual Londrina, Sch Dent, Dept Restorat Dent, Rua Pernambuco 540, Londrina, PR - Brazil
[2] Univ Sao Paulo, Dept Dent Mat & Prosthodont, Ribeirao Preto Sch Dent, Ribeirao Preto, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH; v. 19, n. 5, p. 860-866, OCT 2017.
Web of Science Citations: 2
Abstract

Background: The biomechanical behavior of implant-supported titanium and zirconia full-arch fixed dental prosthesis (FAFDP) frameworks require further investigation. Purpose: Strains transferred by implant-supported titanium (Ti) and zirconia (Zr) FAFDP frameworks were analyzed. Materials and Methods: Maxillary 14-unit FAFDPs supported by 6 implants and 12-unit FAFDPs supported by 4 implants were tested. One-piece frameworks were fabricated by computer-aided design/computer-aided manufacturing. Four groups were divided (n=3): G1, Ti-6 implants; G2, Zr-6 implants; G3, Ti-4 implants; G4, Zr-4 implants. A 250 N single-point load was applied on the second premolar. A three-dimensional digital image correlation system recorded framework and maxilla model surface deformation. Results: The following strains (S) averaged over the length of the second premolar were calculated: frameworks, G1 (321.82 +/- 11.29), G2 (638.87 +/- 108.64), G3 (377.77 +/- 28.64), G4 (434.18 +/- 132.21); model surface, G1 (473.99 +/- 48.69), G2 (653.93 +/- 45.26), G3 (1082.50 +/- 71.14), G4 (1218.26 +/- 230.37). Zirconia frameworks supported by 6 implants (G2) presented higher surface strains (P<.05). FAFDPs with titanium frameworks transferred significantly lower strains to the supporting maxilla when 6 implants were used (G1) (P<.05). Both framework materials transferred similar strains when supported by 4 implants (G3 and G4) (P>.05). Conclusions: Zirconia frameworks supported by 6 implants showed higher strains. FAFDPs supported by 6 implants transferred less strains to the supporting maxilla, irrespective of framework material. (AU)

FAPESP's process: 11/01506-0 - A digital image correlation analysis and non-linear 3D-FEM on the strain distribution of screwed and cemented fixed partial dentures fabricated by a CAD/CAM system in titanium and zirconia
Grantee:Ricardo Faria Ribeiro
Support type: Regular Research Grants
FAPESP's process: 10/00124-3 - Influence of mechanical cycling on loosening of retention screw in cemented and screwed fixed partial dentures fabricated with titanium and zirconia cad/cam system. In vitro analysis and non-linear analysis by 3D-FEA.
Grantee:Erica Alves Gomes
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 10/02218-5 - Influence of mechanical cycling on loosening of retention screw in cemented and screwed fixed partial dentures fabricated with titanium and zirconia cad/cam system. In vitro analysis and non-linear analysis by 3D-FEA
Grantee:Ricardo Faria Ribeiro
Support type: Regular Research Grants
FAPESP's process: 10/19221-9 - A digital image correlation analysis and non-linear 3D-FEM on the strain distribution of screwed and cemented fixed partial dentures fabricated by a CAD/CAM system in titanium and zirconia
Grantee:Rodrigo Tiossi
Support type: Scholarships in Brazil - Post-Doctorate