Impact of pH and application time of meta-phosphoric acid on resin-enamel and resin-dentin bonding

Cardenas, Afm; Siqueira, Fabiana Suelen Figuerêdo de; Bandéca, Matheus Coêlho; Costa, Samuel Oliveira; Lemos, Marcelo Victor Sidou; Feitora, V.P.; Reis, Alessandra; Loguércio, Alessandro Dourado; Gomes, João Carlos

doi:10.1016/j.jmbbm.2017.11.028

Cited by 16 publications

(10 citation statements)

References 39 publications

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“…For dentin bonding, the dentin’s collagen fibers provide the main source of bonding force, and the reduced long-term bond durability caused by collagen degradation is the main problem of dentin bonding. 40 Therefore, the activation of metalloproteinases in dentin and the subsequent degradation of collagen or hybrid layer is the main index for evaluation the bonding durability of dentin, which makes long-term water storage a valuable artificial aging technique. 41 Enamel comprises up to 96% inorganic substances; therefore, thermal stress might induce much greater damage around an adhesive layer on enamel than hydrolytic degradation, and thermocycling is thus recommended to simulate in vivo aging.…”

Section: Discussionmentioning

confidence: 99%

“…However, the main cause of clinical failure of restorations is loss of adhesion and/or destruction of edge seal; therefore, the durability of the material is a more important indicator of bonding performance. For dentin bonding, the dentin’s collagen fibers provide the main source of bonding force, and the reduced long-term bond durability caused by collagen degradation is the main problem of dentin bonding . Therefore, the activation of metalloproteinases in dentin and the subsequent degradation of collagen or hybrid layer is the main index for evaluation the bonding durability of dentin, which makes long-term water storage a valuable artificial aging technique .…”

Section: Discussionmentioning

confidence: 99%

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Glycerol Phosphate Dimethacrylate: An Alternative Functional Phosphate Ester Monomer to 10-Methacryloyloxydecyl Dihydrogen Phosphate for Enamel Bonding

et al. 2020

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The bonding performance of a glycerol phosphate dimethacrylate (GPDM)-based, two-step, self-etch (SE) adhesive was experimentally compared to that of 10-methacryloyloxydecyl dihydrogen phosphate (MDP)-based universal adhesives in different application modes for enamel bonding. Microtensile bond strength (μTBS) for adhesives bonded to enamel was measured initially (24 h water storage) and after 10 000 thermocycles plus water storage for 30 days. A GPDM-based, two-bottle, two-step, self-etch adhesive (Optibond Versa, OV) and three one-bottle MDP-based universal adhesives, one self-etching (Tetric N Bond Universal, TNBU) and two with etch-and-rinse (E&R) processing (Single Bond Universal (SBU); Clearfil Universal Bond Quick (CUBQ)), were tested. Scanning electron microscopy (SEM) evaluated nanoleakage at the bonding interfaces. A profilometer determined roughnesses of enamel surfaces after phosphoric acid etching, OV priming, or TNBU conditioning. SEM observed the corresponding surface morphology. NMR and X-ray photoelectron spectroscopy (XPS) characterized chemical bonding in hydroxyapatites (HAps) conditioned with the adhesives. Etch-and-rinse samples had significantly stronger bonding than self-etch samples ( p < 0.05) irrespective of aging. The μTBS values for initial and aged OV were significantly higher than those of TNBU ( p < 0.05). Aging did not significantly decrease μTBS for any sample except TNBU ( p < 0.05), but it significantly aggravated nanoleakage. Etch-and-rinse processing resulted in less nanoleakage than self-etching; the OV samples leaked less than TNBU, both before and after aging. Phosphoric acid etching achieved the highest enamel surface roughness, followed by OV primer. Ca–O–P bonds in hydroxyapatite conditioned with TNBU, SBU, and CUBQ were confirmed by NMR, which showed similar results to XPS observations of conditioned hydroxyapatite powders except OV primer. The GPDM-based, two-step, self-etch adhesive can provide higher micromechanical retention potential, bond strength, and durability than the MDP-based universal adhesive in self-etch mode but lower performance than the MDP-based universal adhesive in etch-and-rinse mode. None of the tested adhesives could avoid nanoleakage after aging.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Glycerol Phosphate Dimethacrylate: An Alternative Functional Phosphate Ester Monomer to 10-Methacryloyloxydecyl Dihydrogen Phosphate for Enamel Bonding

et al. 2020

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“…The prevention of enamel erosion and remineralization of enamel through orthodontic treatment is a crucial issue. [ 2 3 4 8 9 ]…”

Section: Introductionmentioning

confidence: 99%

Impact of fluoride-releasing orthodontic adhesives on the shear bond strength of orthodontic brackets to eroded enamel following different surface treatment protocols

Althagafi¹

2022

Journal of Orthodontic Science

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PURPOSE: To assess the impact of enamel surface treatment protocols and the types of adhesive materials on the shear bond strength (SBS) of brackets to eroded enamel substrate. MATERIALS AND METHODS: Eighty extracted premolars were randomly assigned to four main groups in which group C (no treatment) was the control group. The remaining groups were exposed to an erosion challenge through short-term acidic exposure to HCl solution (0.01 M, pH 2.3) for 30 s, with an agitation speed of 50 rpm at an environmental temperature of 25°C. The eroded enamel surface within each group was treated as follows: group N received no treatment; in group P, the eroded enamel was treated with 35% phosphoric acid (Ultradent Products, South Jordan, UT, USA) for 15 s, followed by a rinse for 10 s; and in group F, the eroded enamel was treated with fluoride gel (Bifluorid 12; Voco-GmbH, Cuxhaven, Germany) for 4 min. The brackets were bonded with either a resin composite adhesive (Transbond XT; light-cure adhesive, 3M Unitek, CA, USA) or resin-modified glass ionomer cement (Fuji Ortho LC-GC Corporation, Japan). The specimens were tested for SBS, and the bond failure was assessed according to the adhesive remnant index (ARI). Analysis of variance (ANOVA) and Tukey's post-hoc tests ( P < 0.05) were used to compare the SBS of the groups. The ARI values between the groups were recorded. RESULTS: Statistically significant differences were found among the tested variables ( P < 0.05). Group P showed the highest mean SBS values regardless of the type of adhesive used, and the difference was statistically significant ( P < 0.05). The application of the fluoride gel showed no statistically significant improvement in SBS values. The failure mode distribution among the test groups indicated that failures at the adhesive–bracket interface were predominant in group C compared with the other study groups. CONCLUSIONS: Fluoride pretreatment, which was used to remineralize the eroded enamel surfaces before bonding, resulted in a decrease in the SBS of the orthodontic brackets in vitro compared with the other treated groups. The use of fluoride-releasing adhesive also enhances bonding to the eroded enamel surfaces.

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“…(4) Application time It seems the same bonding value between 5 and 37% phosphoric acid etching in the range of 15 s to 1 min. It proves good tolerance of enamel etching with different prosthesis (Cardenas et al, 2018;Sai et al, 2018).…”

Section: Adhesion To Enamelmentioning

confidence: 63%

“…(3) Consistency A study showed that gels are as effective as liquid solutions. Therefore, we prefer colored gels that allow precise operation and good visual control (Cardenas et al, 2018).…”

Section: Adhesion To Enamelmentioning

confidence: 99%

Adhesion of Teeth

et al. 2021

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Dental bonding materials are widely used in dentistry and there are several available kinds. However, in recent years, there has been no further research into dental bonding materials, with most dentists focusing on dental implants and orthodontics. In this paper, we systematically review the technology of tooth bonding in recent years and summarize the existing literature for potential innovation and direction of future research. First, the theoretical research on dental assembly materials and bonding mechanism was reviewed. Then, we reviewed the bonding of teeth, the bonding of metal alloy prosthesis, and the measurement of bond strength. Finally, the future development of dental bonding technology was evaluated. It is hoped that more dentists will be able to treat patients and update research on bonding materials in the field of teeth bonding to bring a new era to the restoration of teeth in the future.

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Impact of pH and application time of meta-phosphoric acid on resin-enamel and resin-dentin bonding

Cited by 16 publications

References 39 publications

Glycerol Phosphate Dimethacrylate: An Alternative Functional Phosphate Ester Monomer to 10-Methacryloyloxydecyl Dihydrogen Phosphate for Enamel Bonding

Glycerol Phosphate Dimethacrylate: An Alternative Functional Phosphate Ester Monomer to 10-Methacryloyloxydecyl Dihydrogen Phosphate for Enamel Bonding

Impact of fluoride-releasing orthodontic adhesives on the shear bond strength of orthodontic brackets to eroded enamel following different surface treatment protocols

Adhesion of Teeth

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