ORIGINAL ARTICLE

Influence of sterilization on the retention forces of lithium disilicate and polymer-infiltrated ceramic-network crowns bonded to titanium base abutments: An in-vitro study

Corresponding Author

Andreina Laforì

[email protected]

orcid.org/0000-0001-5530-5280

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

Correspondence

Andreina Laforì, Division of Fixed Prosthodontics and Biomaterials University Clinics of Dental Medicine, University of Geneva, Michel Servet 1, Geneva 1211-CH, Switzerland.

Email: [email protected]

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Irena Sailer,

Irena Sailer

orcid.org/0000-0002-4537-7624

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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Vincent Fehmer,

Vincent Fehmer

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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Philippe Mojon,

Philippe Mojon

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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Felix Burkhardt,

Felix Burkhardt

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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João Pitta,

João Pitta

orcid.org/0000-0002-2334-4688

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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Andreina Laforì,

Corresponding Author

Andreina Laforì

[email protected]

orcid.org/0000-0001-5530-5280

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

Correspondence

Andreina Laforì, Division of Fixed Prosthodontics and Biomaterials University Clinics of Dental Medicine, University of Geneva, Michel Servet 1, Geneva 1211-CH, Switzerland.

Email: [email protected]

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Irena Sailer,

Irena Sailer

orcid.org/0000-0002-4537-7624

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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Vincent Fehmer,

Vincent Fehmer

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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Philippe Mojon,

Philippe Mojon

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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Felix Burkhardt,

Felix Burkhardt

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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João Pitta,

João Pitta

orcid.org/0000-0002-2334-4688

Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland

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First published: 03 January 2024

https://doi.org/10.1111/clr.14234

Citations: 1

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Abstract

Objectives

The aim of this study was to evaluate the effect of sterilization on the retention forces of lithium disilicate (LD) and polymer-infiltrated ceramic network (PICN) crowns bonded to titanium base (Ti-base) abutments.

Materials and methods

Forty LD and 40 PICN crowns were milled and then bonded to 80 Ti-bases with two resin composite cements: Multilink Hybrid Abutment (mh) and Panavia V5 (pv) for a total of 8 groups (n = 10). Half of the specimens (test) underwent an autoclaving protocol (pressure 1.1 bar, 121°C, 20.5 min) and the other half not (control). Restorations were screw-retained to implants, and retention forces (N) were measured with a pull-off testing machine. The surfaces of the Ti-bases and the crowns were inspected for the analysis of the integrity of the marginal bonding interface and failure mode. Student's t-test, chi-square test, and univariate linear regression model were performed to analyze the data (α = 0.05).

Results

The mean pull-off retention forces ranged from 487.7 ± 73.4 N to 742.2 ± 150.3 N. Sterilized groups showed statistically significant overall higher maximum retention forces (p < .05), except for one combination (LD + mh). Sterilization led to an increased presence of marginal gaps and deformities compared to no-sterilization (p < .001), while no statistically significant relationship was found between failure mode and sterilization (p > .05).

Conclusions

Sterilization may have a beneficial effect on the retention forces of LD and PICN crowns bonded to titanium base abutments, although it may negatively influence the integrity of the marginal bonding interface.

CONFLICT OF INTEREST STATEMENT

Authors declare no conflict of interest.

Open Research

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Citing Literature

Volume35, Issue4

April 2024

Pages 377-385

Influence of sterilization on the retention forces of lithium disilicate and polymer-infiltrated ceramic-network crowns bonded to titanium base abutments: An in-vitro study

Abstract

Objectives

Materials and methods

Results

Conclusions

CONFLICT OF INTEREST STATEMENT

Open Research

DATA AVAILABILITY STATEMENT

REFERENCES

Citing Literature

References

Information

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Influence of sterilization on the retention forces of lithium disilicate and polymer-infiltrated ceramic-network crowns bonded to titanium base abutments: An in-vitro study

Abstract

Objectives

Materials and methods

Results

Conclusions

CONFLICT OF INTEREST STATEMENT

Open Research

DATA AVAILABILITY STATEMENT

REFERENCES

Citing Literature

References

Related

Information