Effect of Surface Treatments of Polyetherketoneketone as a Post Material on Shear Bond Strength to Root Dentin using Two Types of Resin Cement.

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

Journal of Adhesive Dentistry Pub Date : 2022-11-28 DOI:10.3290/j.jad.b3608791

Masaaki Kasahara, Tomoko Someya, Masayuki Hattori

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引用次数: 0

Abstract

Purpose: This study investigated the effects of mechanical and chemical pretreatment of polyetherketoneketone (PEKK) on shear bond strength (SBS) to root dentin using two types of resin cement.

Materials and methods: A total of 100 PEKK specimens were prepared and polished. Sixty specimens were mechanically treated by sandblasting (50-µm Al2O3 for 10 s at 0.2-0.25 MPa), and the remaining 40 were untreated. Self-adhesive resin cement and conventional resin cement were used. PEKK specimens bonded to root dentin using self-adhesive resin cement were classified into three groups by pretreatment method: (1) untreated PEKK, (2) mechanical pretreatment (sandblasted PEKK), and (3) both mechanical and chemical pretreatment (PEKK sandblasting as well as application of Scotchbond Universal; 3M Oral Care). Conventional resin cement was pretreated following the same steps (1-3) as those followed for self-adhesive specimens. Each group included 10 specimens. PEKK specimens after surface treatments were examined using SEM. SBS tests were performed using a universal testing machine, and data were statistically analyzed using one-way ANOVA and Tukey's multiple comparison test (p < 0.05).

Results: No significant difference was observed between cements with and without sandblasting. However, self-adhesive specimens with both mechanical and chemical pretreatments demonstrated higher SBS than other cements with or without pretreatment.

Conclusion: Mechanical pretreatment by sandblasting did not improve the PEKK-root dentin SBS. However, combined mechanical (sandblasting) and chemical pretreatment (ScotchBond Universal) significantly improved the SBS between the PEKK and root dentin.

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聚醚醚酮酮作为柱体材料的表面处理对使用两种树脂水泥的牙根剪切粘接强度的影响

目的：本研究调查了聚醚醚酮酮（PEKK）的机械和化学预处理对使用两种树脂水泥的根牙本质剪切粘结强度（SBS）的影响：共制备并抛光了 100 个 PEKK 试样。其中 60 个试样通过喷砂（50 微米的 Al2O3，10 秒，0.2-0.25 兆帕）进行机械处理，其余 40 个试样未经处理。使用了自粘树脂水泥和传统树脂水泥。按预处理方法将使用自粘树脂水门汀粘接到根部牙本质的 PEKK 试样分为三组：(1) 未经处理的 PEKK，(2) 机械预处理（喷砂处理 PEKK），(3) 机械和化学预处理（PEKK 喷砂处理以及使用思高万能胶；3M 口腔护理产品）。传统树脂水泥的预处理步骤（1-3）与自粘试样的步骤相同。每组包括 10 个试样。使用 SEM 对表面处理后的 PEKK 试样进行检查。使用万能试验机进行 SBS 测试，并使用单因素方差分析和 Tukey 多重比较试验对数据进行统计分析（P < 0.05）：结果：喷砂和未喷砂的水泥之间没有明显差异。然而，经过机械和化学预处理的自粘试样比其他经过或未经过预处理的水泥具有更高的 SBS：结论：通过喷砂进行机械预处理并不能改善 PEKK-牙本质的 SBS。然而，机械预处理（喷砂）和化学预处理（思高邦通用水门汀）联合使用可显著改善 PEKK 与根部牙本质之间的 SBS。

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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.