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Three-dimensional misfit between Ti-Base abutments and implants evaluated by replica technique
Karina Bergamo Cardoso1, Edmara Tatiely Pedroso Bergamo1, Vitor De Moraes Cruz2
1Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Prótese e Periodontia, Bauru, Brasil.
Journal of Applied Oral Science : Revista FOB
|December 2, 2020
Summary
The manufacturing method significantly impacts implant-abutment misfit. Singular Implants and S.I.N. implants demonstrated superior fit compared to Odontofix and EFF dental components.
Area of Science:
- Dental Implantology
- Biomaterials Science
- Biomechanical Engineering
Background:
- Implant-abutment misfit is a critical factor influencing the biomechanical performance of implant-supported dental reconstructions.
- Accurate fit is essential for long-term stability and to prevent complications.
Purpose of the Study:
- To quantitatively assess the misfit between different Ti-Base abutments and dental implants.
- To evaluate the influence of manufacturing methods on implant-abutment interface gaps.
Main Methods:
- Utilized polyvinyl siloxane (PVS) replica technique combined with microcomputed tomography (μCT) for precise gap measurement.
- Measured volumetric and linear (central and marginal) gaps for four groups of Ti-Base abutments (Odontofix, Singular Implants, EFF Dental Components, and S.I.N. implants).
Main Results:
- Control S.I.N. and Singular Implants (SING) Ti-Base abutments exhibited significantly lower volumetric gaps compared to Odontofix (OD) and EFF Dental Components (EFF).
- While central gaps were consistent, EFF showed a significantly higher marginal gap, indicating poorer marginal fit.
- Control S.I.N. and SING demonstrated superior volumetric and marginal fit.
Conclusions:
- The manufacturing process of Ti-Base abutments directly influences the degree of misfit at the implant-abutment interface.
- Specific manufacturing methods result in demonstrably better fit, which is crucial for predictable clinical outcomes in implant dentistry.
