Early Phase Enamel Bond Performance of a Two-step Adhesive Containing a Primer Derived from a Universal Adhesive.

IF 2.5 3区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of Adhesive Dentistry Pub Date : 2022-11-08 DOI:10.3290/j.jad.b3559035

Kei Iwase, Toshiki Takamizawa, Keiichi Sai, Sho Shibasaki, Wayne W Barkmeier, Mark A Latta, Atsushi Kamimoto, Masashi Miyazaki

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引用次数: 0

Abstract

Purpose: To investigate the changes in the enamel bond performance of a two-step adhesive containing a primer derived from a universal adhesive in the early phase before 24 h and compare them to those of other adhesives. The Knoop hardness number (KHN) of the cured adhesive layers and resin composite was measured.

Materials and methods: A new two-step adhesive using universal adhesive technology, G2-Bond Universal, was tested. Two conventional two-step adhesives, Clearfil SE Bond 2 and OptiBond eXTRa, and an established universal adhesive, Scotchbond Universal Plus Adhesive, were used as comparison materials. Twelve specimens per group were used to measure the shear bond strength (SBS) to bovine enamel in different etching modes. The bonded specimens were stored in distilled water at 37°C for 5 min or 1, 6, 12, or 24 h before SBS testing. The KHN of the adhesive layer and resin composite was determined after the same storage periods as for SBS testing.

Results: All adhesives exhibited increased SBS with prolonged storage periods, irrespective of the etching mode. The KHN of the adhesive layer and resin composite increased over time.

Conclusions: There were strong positive correlations between the SBS and KHN of the adhesive layer and resin composite. Phosphoric acid pre-etching of enamel effectively increases enamel bond performance. The two-step adhesive G2-Bond Universal demonstrated significantly higher bond strength in the early phase than the other adhesives in self-etch mode.

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含有从通用粘合剂中提取的底漆的两步粘合剂的早期珐琅粘合性能。

目的：研究一种含有从通用粘合剂中提取的底漆的两步粘合剂在 24 小时前的早期阶段在珐琅粘合性能方面的变化，并将其与其他粘合剂进行比较。测量了固化粘合剂层和树脂复合材料的努氏硬度数（KHN）：测试了一种采用通用粘合剂技术的新型两步粘合剂 G2-Bond Universal。两种传统的两步粘合剂 Clearfil SE Bond 2 和 OptiBond eXTRa 以及一种成熟的通用粘合剂 Scotchbond Universal Plus 粘合剂被用作对比材料。每组十二个试样用于测量不同蚀刻模式下与牛珐琅的剪切粘接强度（SBS）。在 SBS 测试前，粘合试样在 37°C 的蒸馏水中存放 5 分钟或 1、6、12 或 24 小时。在与 SBS 测试相同的储存时间后，测定粘合剂层和树脂复合材料的 KHN：结果：所有粘合剂的 SBS 都随着储存时间的延长而增加，与蚀刻模式无关。粘合剂层和树脂复合材料的 KHN 随时间而增加：结论：粘合剂层和树脂复合材料的 SBS 和 KHN 之间存在很强的正相关性。对珐琅质进行磷酸预蚀刻可有效提高珐琅质的粘接性能。在自酸蚀模式下，两步粘接剂 G2-Bond Universal 在早期阶段的粘接强度明显高于其他粘接剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Adhesive Dentistry 医学-牙科与口腔外科

CiteScore

5.20

自引率

6.10%

发文量

审稿时长

6-12 weeks

期刊介绍： New materials and applications for adhesion are profoundly changing the way dentistry is delivered. Bonding techniques, which have long been restricted to the tooth hard tissues, enamel, and dentin, have obvious applications in operative and preventive dentistry, as well as in esthetic and pediatric dentistry, prosthodontics, and orthodontics. The current development of adhesive techniques for soft tissues and slow-releasing agents will expand applications to include periodontics and oral surgery. Scientifically sound, peer-reviewed articles explore the latest innovations in these emerging fields.