Three-dimensional misfit between Ti-Base abutments and implants evaluated by replica technique

Author(s)

Karina Bergamo Cardoso ^[1] ; Edmara Tatiely Pedroso Bergamo ^[2] ; Vitor De Moraes Cruz ^[3] ; Ilana Santos Ramalho ^[4] ; Lucas Fracassi De Oliveira Lino ^[5] ; Estevam Augusto Bonfante ^[6]

Affiliation

^[1] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Departamento de Prótese e Periodontia - Brasil

^[2] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Departamento de Prótese e Periodontia - Brasil

^[3] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Departamento de Dentística, Endodontia e Materiais Odontológicos - Brasil

^[4] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Departamento de Prótese e Periodontia - Brasil

^[5] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Departamento de Prótese e Periodontia - Brasil

^[6] Universidade de São Paulo. Faculdade de Odontologia de Bauru. Departamento de Prótese e Periodontia - Brasil

• Document type: Journal article
• Source: Journal of Applied Oral Science; v. 28, 2020-11-30.

Abstract

Abstract An important factor affecting the biomechanical behavior of implant-supported reconstructions is the implant-abutment misfit. Objective: This study evaluated the misfit between Ti-Base abutments and implants by means of polyvinyl siloxane replica technique using microcomputed tomography (μCT). Methodology: Volumetric and linear (central and marginal) gaps of four Ti-base abutments (n=10/group): (i) Odontofix LTDA (OD), (ii) Singular Implants (SING), (iii) EFF Dental Components (EFF), and (iv) Control Group (S.I.N implants) compatible with an implant system (Strong SW, S.I.N Implants) were measured using μCT reconstructed polyvinyl siloxane replicas. Results: The results showed significantly lower volume gap for Control S.I.N (0.67±0.29 mm3) and SING (0.69±0.28 mm3) Ti-base abutments relative to OD (1.42±0.28 mm3) and EFF groups (1.04±0.28 mm3) (p<0.033), without significant difference between them (p=0.936). While gap values were homogenous in the central region, EFF presented a significantly higher marginal gap. Accordingly, the Control S.I.N and Singular Ti-base abutments showed improved volumetric and marginal fit relative to Odontofix and EFF. Conclusion: The method of manufacturing abutments influenced the misfit at the implant-abutment interface. (AU)

• FAPESP's process: 19/08693-1 - Experimental glass-infiltrated alumina-zirconia composites: characterization of microstructure, optical and mechanical properties.
• Grantee: Edmara Tatiely Pedroso Bergamo
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/19094-9 - Experimental composits 80%ZrO2 -20%Al2O3: microstructural, optical and survivor characterization
• Grantee: Lucas Fracassi de Oliveira Lino
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 16/18818-8 - Multi-User Equipment approved in grant 2012/19078-7: ElectroPuls E3000 Linear-Torsion All-Electric dynamic test instrument package
• Grantee: Estevam Augusto Bonfante
• Support Opportunities: Multi-user Equipment Program
• FAPESP's process: 12/19078-7 - Development and processing of Al2O3-ZrO2 translucent composite for CAD/CAM monolithic prostheses: the effect of aging on biaxial flexural strength
• Grantee: Estevam Augusto Bonfante
• Support Opportunities: Research Grants - Young Investigators Grants