Chatra Akshatha, Nair Prathap M S, D'Costa Vivian Flourish, Kukkila Jayaprakash, Mayya Arun, Chatra Laxmikanth, Mayya Shreemathi S
Department of Conservative Dentistry and Endodontics, Yenepoya Dental College, Yenepoya (Deemed to be University), Mangalore, Karnataka, India.
Department of Dental Materials, Yenepoya Dental College, Yenepoya (Deemed to be University), Mangalore, Karnataka, India.
J Int Soc Prev Community Dent. 2024 Oct 29;14(5):362-368. doi: 10.4103/jispcd.jispcd_14_24. eCollection 2024 Sep-Oct.
As an emerging yet underexplored innovation in dentistry, self-adhesive flowable composites (SAFCs) represent a promising and enduring advancement in the dental material technology. Our study aims to evaluate the shear bond strength of two SAFCs and the bonding of conventional flowable composite (CFC) to permanent dentin.
Thirty-six teeth were embedded in acrylic blocks, with the occlusal third removed to expose the underlying dentin. A cylindrical mold was positioned on the treated dentin surface and filled with the composite resin material to be evaluated. The prepared permanent dentin surfaces were randomly assigned to three groups based on the following application protocols: Group 1: Axo Uni Flow (AXIMACK, India); Group 2: Constic (DMG, Germany); and Group 3: 37% phosphoric acid etchant + Single Bond Universal + Filtek Z350 XT (3M ESPE, USA). The shear bond strength of the prepared specimens was measured by using a universal testing machine. The data were analyzed with Kruskal-Wallis one-way analysis of variance, followed by Dwass-Steel-Critchlow-Fligner pairwise comparisons.
Filtek Z350 XT (3M ESPE, USA) demonstrated higher shear bond strength values when compared to Constic (DMG, Germany) and Axo Uni Flow (AXIMACK, India). A significant difference was found between these materials. However, the shear bond strength of the two SAFCs tested did not differ significantly.
The investigation's findings suggest that the SAFCs exhibited inferior shear bond strength compared with CFCs when bonded with permanent dentin.
作为牙科领域一项新兴但尚未充分探索的创新技术，自粘型流动复合树脂（SAFCs）代表了牙科材料技术中一项有前景且持久的进步。我们的研究旨在评估两种SAFCs的剪切粘结强度以及传统流动复合树脂（CFC）与恒牙本质的粘结情况。
36颗牙齿嵌入丙烯酸树脂块中，去除咬合面三分之一以暴露下方的牙本质。将圆柱形模具放置在处理过的牙本质表面，并用待评估的复合树脂材料填充。根据以下应用方案，将制备好的恒牙本质表面随机分为三组：第1组：Axo Uni Flow（印度AXIMACK公司）；第2组：Constic（德国DMG公司）；第3组：37%磷酸蚀刻剂+单键通用粘结剂+Filtek Z350 XT（美国3M ESPE公司）。使用万能试验机测量制备标本的剪切粘结强度。数据采用Kruskal-Wallis单向方差分析，随后进行Dwass-Steel-Critchlow-Fligner两两比较。
与Constic（德国DMG公司）和Axo Uni Flow（印度AXIMACK公司）相比，Filtek Z350 XT（美国3M ESPE公司）显示出更高的剪切粘结强度值。这些材料之间存在显著差异。然而，所测试的两种SAFCs的剪切粘结强度没有显著差异。
研究结果表明，SAFCs与恒牙本质粘结时，其剪切粘结强度低于CFCs。
