Bonding performance of self-etch adhesives to enamel bleached with different peroxide concentrations

Nayif, Maan M.; Otsuki, Masayuki; Tagami, Junji

doi:10.1590/0103-6440202104046

Cited by 2 publications

(5 citation statements)

References 19 publications

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“…Полимеры на основе акриловой и метакриловой кислот используют в стоматологии много лет. Они имеют хорошие механические, биологические (не имеют запаха, не являются ядовитыми) и оптические свойства [41,42]. Наличие двойной связи дает возможность протекать реакции полимеризации.…”

Section: обзорыunclassified

“…Сила сцепления адгегивной системы с эмалью была достаточной, а вот сила сцепления с дентином падала из-за влаги, выделявшейся из дентинных канальцев. Данный адгезив невозможно было применять на коренных зубах, также после его использования возрастала чувствительность зубов [42].…”

Section: обзорыunclassified

“…Смазанный слой (smear layer) возникает при механической обработке (препарировании). Он представляет собой инфицированный слой, состоящий из осколков минеральных и органических тканей, смешанных с зубными и потовыми жидкостями [42]. Его толщина составляет 1-2 мм, он может проникать в дентинные канальцы, что является препятствием для адгезивной системы [43].…”

Section: обзорыunclassified

“…Данная ионная связь быстро разрушается в присутствии жидкости. В результате происходит дебондинг и возникают микроподтекания [42].…”

Section: обзорыunclassified

“…Адгезив все еще нельзя было применять на коренных зубах, появились микроподтекания, проблема чувствительности не исчезла. Механизм остался без изменения по сравнению с адгезивами 1-го поколения [42].…”

Section: обзорыunclassified

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Dynamics of adhesive systems development in dental practice

Bordina

Lopina

Andreev

et al. 2022

Russian Journal of Dentistry

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BACKGROUND: Тhe article presents a review of adhesive systems in terms of their component chemical composition. Seven generations of adhesive systems have been studied. The first generation of adhesive systems emerged in the 1970s. The result of the action was the bond reaction of the adhesive with calcium enamel and dentin. Glycerophosphoric acid dimethacrylate was used. The use of methacrylates in adhesive systems was widespread because polymers with high biological indifference to biological objects are formed when they are polymerized in combination with acrylic resin. The second generation used a lubricated layer to obtain higher adhesion rates. Chloro-substituted phosphate esters of various monomers were used as active groups. The main compound mechanism remained the ionic binding of calcium dentine by chlorophosphate groups. The third generation used a lubricated layer to attach the composite to the dentin in the same way as the second generation. In the chemical composition, aluminosilicates, aluminitrates, hydroxyethylmethacrylate (HEMA), 4-methacryloxyethyltrimethyl anhydride (4-META), and other substances were most often used as active groups. The fourth generation is a multicomponent system that provides a three- and four-step application technique. These systems contain three to four components (conditioner, primer, and adhesive). The technique of their use includes three stages, namely, etching with 37% orthophosphoric acid, priming, and bonding. Adhesive systems of the fifth generation are two-component systems that provide a two-step technique of application. First, acid (etching) is applied to the tooth tissue, and second, the adhesive itself. Adhesive systems of the sixth and seventh generations are one-component self-etching since the adhesive contains acid. From a chemical point of view, these adhesive systems are a mixture of phosphoric esters and adhesive substances. Therefore, analyzing the adhesive composition of seven generations in such way, the mechanism of chemical interaction of adhesive components with hydroxyapatite and dentin has not significantly changed; however, the number of hydrophobic fragments has increased, which significantly increases dentin contact.

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Section: обзорыunclassified

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Dynamics of adhesive systems development in dental practice

Bordina

Lopina

Andreev

et al. 2022

Russian Journal of Dentistry

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Effect of Sodium Ascorbate, Grape Seed Extract, and Aloe Vera Application after In-Office Bleaching on the Bond Strength of Enamel: A 3-Year Evaluation

Mena-Serrano,

Aldás Fierro,

Estrada

et al. 2023

International Journal of Dentistry

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Introduction. Dental bleaching is the first choice to improve smile esthetics, but, in some cases, it needs to be associated with resin composite restoration to obtain a satisfactory result. Unfortunately, the bonding of resin-based materials can be impaired due to residual oxygen molecules, which can decrease the durability of the restoration. Objectives. To evaluate the effect of the antioxidant application on the bond strength of bleached enamel after 24 hr and 3 years of water storage. Methods. In total, 84 bovine teeth were used in this study. Of these, 77 were bleached with 35% hydrogen peroxide in a single session for three cycles of 15 min. Then, the specimens were divided into groups (n = 7 each): control (without bleaching), without antioxidant (WA) use; application of 10% sodium ascorbate (SA) gel, grape seed (GS) extract, and aloe vera (AV). The restorative procedure was performed immediately after bleaching, 7 and 14 days after bleaching. Specimens were sectioned and evaluated using microtensile bond strength (μTBS). Half of the resin-enamel sticks were tested after 24 hr, and the remaining half after 3 years of water storage. µTBS data were analyzed using a three-way analysis of variance, Tukey’s test, and Dunnett’s test. Results. The lowest µTBS values were observed when the restoration was performed immediately after bleaching in the AV, GS, and WA groups when compared with the SA group ( p < 0.005 ). However, no significant differences were observed among all groups after 3 years of water storage ( p < 0.001 ). Conclusions. SA at 10% was the most effective antioxidant agent for improving the immediate bond strength. However, independent of the antioxidant agent used, the bond strength values were maintained or recovered after 3 years of water storage. SA at 10% could be used to avoid delayed bonding procedures after in-office whitening without compromising bond strength over time. Clinical Significance. The use of antioxidants after dental bleaching can be effective in improving the bonding durability of the adhesive restorations.

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Bonding performance of self-etch adhesives to enamel bleached with different peroxide concentrations

Cited by 2 publications

References 19 publications

Dynamics of adhesive systems development in dental practice

Dynamics of adhesive systems development in dental practice

Effect of Sodium Ascorbate, Grape Seed Extract, and Aloe Vera Application after In-Office Bleaching on the Bond Strength of Enamel: A 3-Year Evaluation

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