Quantifying the Adhesion of Silicate Glass–Ceramic Coatings onto Alumina for Biomedical Applications

Baino, Francesco

doi:10.3390/ma12111754

Cited by 6 publications

(4 citation statements)

References 24 publications

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“…21,49 However, in our process, the formation of chemical bonds like Si-O-Si to connect the UGF and Ti plate is formed and gets high bonding strength larger than ~900 mJ/m 2 by just storing the bonded sample in the ambient atmosphere at room temperature. Previous studies 50,51 have shown that a bioactive glass-ceramics coating on a alumina substrate with a bonding strength of ~800 mJ/m 2 had a tensile strength of ~22 MPa. Thus, a tensile strength higher than 22 MPa may have been obtained between the UGF and Ti plate in 9h stored sample in our study, which exceeds the requirement of the international standard for bioactive hydroxyapatite coating implants (15 MPa, ISO 13 779-2).…”

Section: Discussionmentioning

confidence: 99%

Room‐temperature bonding method of bioactive ultrathin glass film on titanium by a dissolution‐polymerization reaction

et al. 2020

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Freestanding ultrathin glass film (UGF) of 45S5 bioglass was successfully bonded on a Ti substrate by the room-temperature bonding method. 45S5 UGFs with a thickness of 1~4 μm were fabricated by the glass-blowing technique, and the UGF was attached on the Ti plate at room temperature with a water layer between them. The bonding strength was about 370 mJ/m 2 just after bonding, and it increased during storing in the ambient atmosphere at room temperature and reached about 900 mJ/ m 2 after 9 hours storage. The interfaces of the UGF and Ti substrate during the bonding process were analyzed by an X-ray photoelectron spectroscopy. The as-prepared UGF was found to have surface layers with a high content of Na 2 O and low content of SiO 2 , and the dissolution of Na 2 O-rich component into water layer induced depolymerization and polymerization of SiO 2 network to form Si-O-Si bonds between the UGF and Ti plate and then to increase the bonding strength during storage. This work presents the simple technique to laminate the bioactive glass layer on the surface of the metal without post heat treatment.

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Section: Discussionmentioning

confidence: 99%

Room‐temperature bonding method of bioactive ultrathin glass film on titanium by a dissolution‐polymerization reaction

et al. 2020

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“…The development of structural defects and microcracks in thicker coatings weakens the interfacial bond. (17) In the same context, Baino (12) concluded that a silica based glass coating thickness below 250 µm was considered convenient for the biomedical purposes. However, Monsalve et al (18) found that decreasing the BAG coating thickness below 80 µm enhanced the adhesive strength of the coating to the substrate.…”

Section: Discussionmentioning

confidence: 99%

Effect of voltage amount used in electrophoretic deposition on the thickness of 70S30C bioglass coating on titanium substrates (in-vitro study).

Darwish

Gad²,

Shimy³

et al. 2022

Alexandria Dental Journal

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INTRODUCTION Although Titanium has high mechanical properties, the lack of its biological activity led to the need for its surface modification. Titanium surface coating is one of the additive surface modifications. Adding new materials to titanium surface can bring new properties to it yet maintaining its original properties. In this study, 70S30C bioglass was used to coat the Titanium substrate by using the electrophoretic deposition technique (EPD). OBJECTIVE Optimizing EPD parameter (voltage amount) for 70S30C bioglass nanoparticles coating on Titanium substrate. The aim of the current study is to evaluate the effect of the voltage amount on the produced coating thickness. METHODS Twenty-four Titanium discs were prepared (10x1.5 mm), sandblasted, and ultrasonically cleaned in ethanol. Bioglass 70S30C was prepared by sol-gel technique followed by ball milling to produce nanoparticle powder. Characterization of the powder was done by transmission and scanning electron microscope. Titanium discs were divided into three groups (G1, G2, and G3) (n=8) each. They were subjected to EPD coating with 10, 30, and 50 Voltage, respectively. The coating thickness was then assessed by SEM images of the cross-section of the used specimens. RESULTS TEM images revealed a highly agglomerated nano-powder with a size range of 8-20 nm. The coating thickness was increased by increasing the voltage amount under the same deposition time. CONCLUSION EPD proved to be a versatile and innovative coating technique with a low cost. The resultant coat thickness is directly proportional to the voltage amount.

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“…In recent years, with the signi cant developments of adhesive and cementation agents, there have been advances in the bonding technology for glass-ceramic [7,8,9]. And using glass-ceramic onlays in the restoration of posterior tooth defect is becoming more popular [10,11].…”

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confidence: 99%

Clinical Performance of Lithium Disilicate Glass-Ceramic Onlays For The Treatment of Tooth Defects

Chen

Zhu

et al. 2021

Preprint

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BackgroundThe aim of this study was to assess the clinical performance of lithium disilicate glass-ceramic onlays for the treatment of tooth defects and to evaluate the clinical performance and whether they are worth more extensive use as that of the full crown. MethodsPatients who received treatment by lithium disilicate glass-ceramic onlays at the Western China Hospital of Stomatology were recalled after 1~4 years. The clinical performance and patients’ satisfaction of onlays for various tooth defects, cracked or uncracked teeth and endodontically treated or vital teeth were retrospectively evaluated with a combination of modified United States Public Health Service Criteria and questionnaire survey. Statistical analysis was performed by using the chi-squared test, Kaplan–Meier analysis and Log-rank test (a = 0.05) where appropriate. ResultsA total of 154 patients with 166 onlays were recalled for clinical examination. Of the 166 onlays examined, 65 (39.19%) were occlusal onlays, 92 (55.42%) were proximal-occlusive onlays and 9 (5.42%) were buccal-or lingual-occlusal onlays. The clinical performance of O and PO onlays was not significantly different (P > 0.05), according to USPHS Criteria. Kaplan-Meier analysis showed that the 4-year survival rate of O and PO onlays was 95.4% and 97.8%, respectively while there was no failure happened in buccal-or lingual-occlusal onlays. Log- rank test showed that the kinds of defects/onlays, tooth vitality and tooth crack had no influence on the survival rate (P > 0.05). The overall satisfaction rate was more than 98%.ConclusionsThis medium-term analysis indicated that lithium disilicate glass-ceramic onlays achieved satisfactory clinical performance for the restoration of different tooth defects. The survival rate of onlays was comparable to that of full crown. Different kinds of tooth defects, tooth vitality and tooth crack did not influence performance.Trial registrationThe study was approved by the Medical Ethics Committee of West China Hospital of Stomatology of Sichuan University with the approval number: WCHSIRB-D-2021-300. Consent to participate was not applicable.

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Quantifying the Adhesion of Silicate Glass–Ceramic Coatings onto Alumina for Biomedical Applications

Cited by 6 publications

References 24 publications

Room‐temperature bonding method of bioactive ultrathin glass film on titanium by a dissolution‐polymerization reaction

Room‐temperature bonding method of bioactive ultrathin glass film on titanium by a dissolution‐polymerization reaction

Effect of voltage amount used in electrophoretic deposition on the thickness of 70S30C bioglass coating on titanium substrates (in-vitro study).

Clinical Performance of Lithium Disilicate Glass-Ceramic Onlays For The Treatment of Tooth Defects

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