Post-etching cleaning influences the resin shear bond strength to CAD/CAM lithium-disilicate ceramics

IF 1.68 Q2 Dentistry

Applied Adhesion Science Pub Date : 2017-10-23 DOI:10.1186/s40563-017-0096-6

Greciana Bruzi, Adriana Oliveira Carvalho, Marcelo Giannini, Hamilton Pires Maia, Pascal Magne

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引用次数: 15

Abstract

The hydrofluoric acid (HF) is able to promote selective dissolution of the glassy phase in silica-based ceramic. However, the etching leaves insoluble silica-fluoride salts in the surface that affects negatively the bond, affirming the need of a post-etching cleaning.

Evaluate the shear bond strength (SBS) of composite resin to CAD/CAM lithium-disilicate ceramics after different post-etching cleaning and silane treatments.

Twenty-four 2?mm-thick slices of IPS e.max CAD?(Ivoclar Vivadent, AG, Schann,?Liechtenstein) were crystallized, embedded in acrylic resin, polished and cleaned in an ultrasonic bath. Each specimen was etched with 5% HF for 20?s, rinsed for 60?s, and treatment was completed using surface cleaning and silanization. The cleaning methods were: AW—air/water spray; UB—ultrasonic bath; PA—37% phosphoric acid; and ST—steam cleaning. The cleaned surface received: E—no silane treatment; E/S—silane application for 20?s, air drying for 20?s and hot drying (60?°C) for 20?s; E/S+—silane application for 60?s, air drying for 20?s, hot air drying (60?°C) for 20?s, rinsing with boiling water for 15?s and hot air drying for 20?s. Cylinders of composite resin (n?=?12) (Z100, 3M-ESPE, Saint Paul, MN, USA) were bonded using an adhesive resin (Optibond FL adhesive, Kerr?Corp, Orange, CA, USA). SBS testing was carried out after 24?h of storage in water. Samples for each post-etching cleaning regimen were analyzed by SEM.

According to two-way ANOVA (Bonferroni-corrected post hoc tests, p?<?0.05), the SBS was significantly influenced by the post-etching cleaning, with UB yielding the highest SBS (21?MPa for E/S); other post-etching cleaning regimens showed lower SBS values (12–17?MPa). The type of silane application was not significantly different. The SEM analysis showed a cleaner ceramic surface for UB when compared to the other groups.

Etching lithium disilicate ceramics following by ultrasonic bath cleaning and regular application of a silane is recommended.

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刻蚀后清洗影响树脂与CAD/CAM二硅酸锂陶瓷的剪切结合强度

氢氟酸(HF)能够促进硅基陶瓷中玻璃相的选择性溶解。然而，蚀刻会在表面留下不溶性的氟硅盐，对键产生负面影响，因此需要在蚀刻后进行清洗。评价不同蚀刻后清洗和硅烷处理后复合树脂与CAD/CAM二硅酸锂陶瓷的剪切结合强度(SBS)。24 2 ?IPS e.max CAD?(Ivoclar Vivadent, AG, Schann，?Liechtenstein)结晶，包埋在丙烯酸树脂中，在超声波浴中抛光和清洁。每个样品用5% HF蚀刻20?S，冲洗60分钟?S，表面清洗和硅化处理完成。清洗方法有:aw -空气/水喷雾;UB-ultrasonic浴;PA-37%磷酸;和st蒸汽清洗。清洗后的表面接受:E-no硅烷处理;E/ s -硅烷在20?S，风干20分钟?5℃，热干燥(60℃)20℃;E/S+ -硅烷应用于60?S，风干20分钟?5、热风干燥(60°C) 20?5、用沸水冲洗15?S和热风干燥20? S。复合树脂圆柱体(n?=?12) (Z100, 3M-ESPE，圣保罗，MN，美国)使用粘合树脂(Optibond FL粘合剂，Kerr?公司，奥兰治，加州，美国)。24?H在水中的储存量。对每个蚀刻后清洗方案的样品进行扫描电镜分析。经双因素方差分析(Bonferroni-corrected post- hoc检验，p <?0.05)， SBS受刻蚀后清洗的显著影响，其中UB产生的SBS最高(21?MPa为E/S);其他蚀刻后清洗方案的SBS值较低(12 - 17mpa)。硅烷应用类型无显著差异。扫描电镜分析表明，与其他组相比，UB的陶瓷表面更清洁。建议先蚀刻二硅酸锂陶瓷，然后进行超声波浴清洗并定期使用硅烷。

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来源期刊

Applied Adhesion Science Dentistry-Dentistry (miscellaneous)

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0.00%

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审稿时长

13 weeks

期刊介绍： Applied Adhesion Science focuses on practical applications of adhesives, with special emphasis in fields such as oil industry, aerospace and biomedicine. Topics related to the phenomena of adhesion and the application of adhesive materials are welcome, especially in biomedical areas such as adhesive dentistry. Both theoretical and experimental works are considered for publication. Applied Adhesion Science is a peer-reviewed open access journal published under the SpringerOpen brand. The journal''s open access policy offers a fast publication workflow whilst maintaining rigorous peer review process.