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

Article Article scientifique 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 eng 2024-01-03 2024-04 author Laforì Andreina 0000-0001-5530-5280 Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland. 949633 CUMD - Division de prothèse fixe et biomatériaux - communs (DPFB) author Sailer Irena 0000-0002-4537-7624 Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland. 809246 CUMD - Division de prothèse fixe et biomatériaux - communs (DPFB) author Fehmer Vincent Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland. 833517 CUMD - Div. médecine dentaire régénérative & parodontologie - Communs (DPAR) author Mojon Philippe Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland. 26576 author Burkhardt Félix Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland. 848612 author Pitta Joao 0000-0002-2334-4688 Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland. 846040 CUMD - Clinique de prothèse fixe (CPFI) 377-385 10.1111/clr.14234 38170349 0905-7161 https://onlinelibrary.wiley.com/doi/10.1111/clr.14234 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. CAD–CAM Bonding Implant dentistry Pull‐off Retention force Sterilization Titanium base abutment Titanium Polymers Dental Porcelain Crowns Materials Testing Zirconium Ceramics Dental Stress Analysis Dental Abutments Computer-Aided Design Dewey 617.6 210 Division de prothèse fixe et biomatériaux 24Q2 false 908 Groupe Sailer Iréna 946 Clinical oral implants research 35 4 220812fa-cbb9-4769-aa89-2504c16cafc7 Article (Published version) Restricted Laforì_-_Influence_of_sterilization.pdf 2917058 application/pdf d1b7f9890e4f302a35308b11bbd2fa21b2cd5e448aef61a4d227c63b6247003a restrictedAccess Faculté de médecine / Section de médecine dentaire / Département de réhabilitation oro-faciale / Division de prothèse fixe et biomatériaux

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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	Clinical oral implants research			2024	95	3

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Laforì, Andreina