Glass-ceramic coating material for the CO 2 laser based sintering of thin films as caries and erosion protection

Bilandžić, Marin Dean; Wollgarten, Susanne; Stollenwerk, Jochen; Poprawe, Reinhart; Esteves‐Oliveira, Marcella; Fischer, Horst

doi:10.1016/j.dental.2017.06.008

Cited by 8 publications

(5 citation statements)

References 28 publications

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“…The literature 17,19,48,49 have shown that cerium did not alter bioactivity behavior when present in glass composition at low concentrations, which is in agreement with our resultshowever, none of them shown that low concentrations of rare earth could promote bioactivity. According to Borges et al, 21 the incorporation of rare earth elements (Gd and Yb) in the glass structure results in an increase of non-bridging oxygens despite their intermediate role in the glass structure, leading to a less connected glass network.…”

Section: Discussionsupporting

confidence: 93%

Dissolution, bioactivity behavior, and cytotoxicity of rare earth‐containing bioactive glasses (RE = Gd, Yb)

Zambanini

Borges

Faria

et al. 2019

Int J Applied Ceramic Tech

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Rare earth‐containing bioactive glasses (RE‐BGs) have been poorly explored in the biomaterials field, although RE has optical, nuclear, and magnetic properties that could be used in different biomedical applications. In order to verify whether these glasses can be promising as biomaterials, we studied the dissolution, bioactivity, and cytotoxicity of RE‐BGs based on the SiO2–Na2O–CaO–P2O5–RE2O3 (RE = Gd, Yb) system. The glasses were obtained by melting‐quenching and their particle size was determined by laser diffraction. Their dissolution behavior was studied in Tris‐HCl, while bioactivity was performed in simulated body fluid solution under physiological conditions during several periods. The cytotoxicity test was performed using glass‐derived conditioned medium and mesenchymal stem cell derived from deciduous teeth. The dissolution results showed that the glasses dissolved under two different kinetics, which are lower for rare earth‐containing glasses, due to the more covalent character of Si–O–RE bonds. The bioactivity results evidenced that all glasses showed bioactivity after 24 hours. However, gadolinium and ytterbium promoted a more calcium phosphate deposition, which contrasts with the slower dissolution kinetics of rare earth‐containing glasses. All the glasses were considered biocompatible, showing cell viability higher than 80%. The overall results showed that RE‐BGs are promising materials for applications that require bioactivity and/or biocompatibility.

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Section: Discussionsupporting

confidence: 93%

Dissolution, bioactivity behavior, and cytotoxicity of rare earth‐containing bioactive glasses (RE = Gd, Yb)

Zambanini

Borges

Faria

et al. 2019

Int J Applied Ceramic Tech

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“…This shift may be associated with a possible formation of SiOP bonds, which would ensure a greater adhesion of the BG on the surface of the dentin as they would be chemically bonded to each other. A study carried out by Bilandzic et al () showed that BG ceramics can be chemically bonded to bovine enamel when CO 2 laser is applied. These findings indicated that chemical bonds between dentin and BGs might not have been excluded.…”

Section: Discussionmentioning

confidence: 99%

Bioactive glass and high‐intensity lasers as a promising treatment for dentin hypersensitivity: An in vitro study

et al. 2019

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This in vitro study aimed to analyze the physical and chemical characteristics of the hypersensitive human dentin‐like surface after application of a bioactive glass (BG) paste (BG/Ac) irradiated or not with high‐power lasers. Dentin specimens were treated with 17% Ethylenediamine tetraacetic acid (EDTA) solution to mimic a hypersensitive dentin and then submitted to neodymium: yttrium–aluminum–garnet (Nd:YAG) laser or CO2 laser irradiation prior and after application of BG/Ac. Characterizations were performed by using X‐ray diffraction, Fourier transformed infrared spectroscopy, scanning electron microscopy, and energy dispersive X‐ray spectroscopy. The results suggested that application of BG/Ac by itself caused some obstructions of dentinal tubules. Nd:YAG laser irradiation reduced the opening of the dentinal tubules with no changes in the collagen structure. CO2 laser irradiation caused dentin melting and resolidification along with cracks and chemical changes in collagen fibers. However, when BG/Ac paste was irradiated with lasers, a sequence of surface reactions between glass and dentin interface led to the formation of an amorphous hydroxyapatite layer, similar to that of an inorganic component of the normal dentin. Moreover, BG/Ac was able to prevent the formation of cracks and degradation of collagen fibers caused by CO2 irradiation. Overall, this study supports that application of BG/Ac paste irradiated by high‐power laser could represent an effective and long‐lasting therapeutic approach for dentin hypersensitivity.

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“…The XRF is used to test the composition of materials, the coating thickness, and to identify elements in dental materials: implant alloy [ 142 ] and ceramics [ 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 ]. XRD is used to obtain information of crystalline structure of solids such as dental ceramics [ 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 ].…”

Section: X-ray Spectroscopymentioning

confidence: 99%

Selected Spectroscopic Techniques for Surface Analysis of Dental Materials: A Narrative Review

et al. 2021

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The presented work focuses on the application of spectroscopic methods, such as Infrared Spectroscopy (IR), Fourier Transform Infrared Spectroscopy (FT-IR), Raman spectroscopy, Ultraviolet and Visible Spectroscopy (UV-Vis), X-ray spectroscopy, and Mass Spectrometry (MS), which are widely employed in the investigation of the surface properties of dental materials. Examples of the research of materials used as tooth fillings, surface preparation in dental prosthetics, cavity preparation methods and fractographic studies of dental implants are also presented. The cited studies show that the above techniques can be valuable tools as they are expanding the research capabilities of materials used in dentistry.

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Glass-ceramic coating material for the CO 2 laser based sintering of thin films as caries and erosion protection

Cited by 8 publications

References 28 publications

Dissolution, bioactivity behavior, and cytotoxicity of rare earth‐containing bioactive glasses (RE = Gd, Yb)

Dissolution, bioactivity behavior, and cytotoxicity of rare earth‐containing bioactive glasses (RE = Gd, Yb)

Bioactive glass and high‐intensity lasers as a promising treatment for dentin hypersensitivity: An in vitro study

Selected Spectroscopic Techniques for Surface Analysis of Dental Materials: A Narrative Review

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