A comparative in vitro study of different composite materials in terms of aligner attachment accuracy and surface roughness using different curing irradiances

IF 1.8 Q2 DENTISTRY, ORAL SURGERY & MEDICINE International Orthodontics Pub Date : 2024-12-10 DOI:10.1016/j.ortho.2024.100961

Servet Erbas, Ezgi Atik

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Abstract

Background

To evaluate 4 different composite resins in terms of aligner attachment accuracy and surface roughness.

Material and methods

160 premolars were divided into 4 groups (n = 40): Group 1: GC Aligner Connect™; 2: GC Ortho Connect™; 3: 3M ESPE Filtek™ Z350 XT flowable; 4: 3M ESPE Filtek™ Z350 XT Universal. Each group was divided into 2 equal subgroups regarding curing irradiances (Power of 1000 mW/cm² in subgroup A for 10 s, and 3200 mW/cm²in B for 3 s, VALO™ Cordless-LED Curing Light). The primary objective was to compare the realized attachments with those of the virtual with 3D Geomagic software. A contact surface profiler was used for roughness measurement (Ra) as the secondary aim. The data were analysed using the IBM SPSS 25.0. The significance level was set at p < 0.05.

Results

In subgroup A, the mean “excess” accuracy measurement of the 3M ESPE Filtek ™Z350 XT flowable resin was found to be higher than others. In subgroup B, the “excess” accuracy measurements of the 3M ESPE Filtek™Z350 XT flowable (0.24 ± 0.07 mm) and Universal (0.26 ± 0.05 mm) resins were significantly higher than those of the GC Aligner Connect™ resin (0.17 ± 0.06 mm), (p < 0.05). According to the Ra measurements in subgroup A, the measurement of the GC Aligner Connect™ (1.75 ± 1.09 μm), GC Ortho Connect™ (0.99 ± 1.04 μm) and 3M ESPE Filtek™ Z350 XT flowable (1.33 ± 1.16 μm) resins were found to be higher than of the Universal resin (0.07 ± 0.11 μm), (p < 0.05). In subgroup B, the Ra measurement of the GC Aligner Connect™ (1.74 ± 1.81 μm) was found to be higher than that of the 3M ESPE Filtek™ Z350 XT flowable (0.11 ± 0.18 μm) resin (p = 0.010). Ra measurement observed for the 10-second curing factor for the 3M ESPE Filtek™ Z350 XT Flowable resin group was found to be significantly higher than for the 3-second curing factor (p < 0.001).

Conclusion

In terms of “excess” value of accuracy, 3M ESPE Filtek™ Z350 XT flowable composite resin showed a higher value. The lowest surface roughness was observed for Universal restorative resin considering low power irradiation, while was observed for 3M ESPE Filtek™ Z350 XT flowable resin considering high power irradiation.

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不同复合材料在不同固化辐照度下对准器附着精度和表面粗糙度的体外比较研究。

背景：评价4种不同的复合树脂对对准器附着精度和表面粗糙度的影响。材料与方法：160颗前磨牙分为4组（n=40）：第一组：GC Aligner Connect™；2: GC Ortho Connect™；3: 3M ESPE Filtek™Z350 XT可流动；4: 3M ESPE Filtek™Z350 XT Universal每组按固化辐照度分为2个相同的子组（A组功率为1000 mW/cm2，持续10秒，B组功率为3200 mW/cm2，持续3秒，VALO™无绳led固化灯）。主要目的是用3D Geomagic软件将实现的附件与虚拟的附件进行比较。采用接触面轮廓仪作为辅助目标进行粗糙度测量（Ra）。采用IBM SPSS 25.0软件对数据进行分析。结果：在A亚组中，发现3M ESPE Filtek™Z350 XT可流动树脂的平均“超额”精度测量高于其他树脂。在B亚组中，3M ESPE Filtek™Z350 XT可流动树脂的“超额”精度测量值（0.24±0.07mm）和Universal（0.26±0.05mm）均显著高于GC Aligner Connect™树脂（0.17±0.06mm）。(p)结论：3M ESPE Filtek™Z350 XT可流动复合树脂的“超额”精度测量值更高。考虑低功率辐照的通用修复树脂表面粗糙度最低，而考虑高功率辐照的3M ESPE Filtek™Z350 XT可流动树脂表面粗糙度最低。

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来源期刊

International Orthodontics DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

2.50

自引率

13.30%

发文量

审稿时长

26 days

期刊介绍： Une revue de référence dans le domaine de orthodontie et des disciplines frontières Your reference in dentofacial orthopedics International Orthodontics adresse aux orthodontistes, aux dentistes, aux stomatologistes, aux chirurgiens maxillo-faciaux et aux plasticiens de la face, ainsi quà leurs assistant(e)s. International Orthodontics is addressed to orthodontists, dentists, stomatologists, maxillofacial surgeons and facial plastic surgeons, as well as their assistants.