Effect of toothbrushing on surface roughness and gloss of CAD-CAM versus conventional interim materials with different surface treatments.

IF 4.3 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Prosthetic Dentistry Pub Date : 2024-10-28 DOI:10.1016/j.prosdent.2024.10.003
Sarasinee Sattawatthamrong, Krid Kamonkhantikul, Woraporn Homsiang, Mansuang Arksornnukit
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Abstract

Statement of problem: Characterizing interim restorations promotes esthetics. However, studies on the effects of characterization materials on the surface roughness and gloss of interim materials after toothbrushing are lacking.

Purpose: The purpose of this in vitro study was to evaluate the surface roughness and gloss of 5 different interim materials with different surface treatments after 1 year of simulated toothbrushing.

Material and methods: Cuboid specimens (10×12×2 mm) were fabricated from each interim material: autopolymerized polymethyl methacrylate (UNIFAST Trad), autopolymerized bis-acryl composite resin (Protemp 4), light-activated composite resin (REVOTEK LC), milled polymethyl methacrylate block (DD provi P HI), and 3-dimensionally printed methacrylate oligomer (Nextdent C&B MFH). Each material was divided into 3 groups based on surface treatment (n=10): polishing, application of Lite Art and Resin Glaze, and application of OPTIGLAZE color. The specimens were subjected to 5000 and 10 000 cycles of toothbrushing. The surface roughness and gloss were measured and separately analyzed by using 3-way repeated measures ANOVA (α=.05).

Results: Significant interactions of the surface roughness and gloss among interim materials, surface treatments, and toothbrushing durations were found (P<.001). After 5000 and 10 000 cycles, each polished material showed no significant difference in surface roughness compared with baseline: Protemp 4 (P>.999), REVOTEK LC (P>.999, P=.922), and Nextdent C&B MFH (P>.999), except for UNIFAST Trad and DD provi P HI (P<.001). Coating with Lite Art and Resin Glaze, as well as OPTIGLAZE color, significantly reduced surface roughness after both 5000 and 10 000 cycles for all materials (application of Lite Art and Resin Glaze with UNIFAST TRAD (P<.001), Protemp 4 (P<.001), REVOTEK LC (P<.001), DD provi P HI (P<.001), and Nextdent C&B MFH (P<.001, P=.002), and application of OPTIGLAZE color with UNIFAST TRAD (P<.001), Protemp 4 (P<.001), REVOTEK LC (P<.001, P=.002), DD provi P HI (P<.001), and Nextdent C&B MFH (P<.001, P=.008)). Specimens with these treatments also exhibited significantly better gloss compared with the polished specimens (P<.001).

Conclusions: After 5000 to 10 000 cycles of toothbrushing, Protemp 4, REVOTEK LC, and Nextdent C&B MFH, interim materials containing fillers, exhibited smoother surfaces compared with UNIFAST Trad and DD provi P HI, interim materials without fillers. Coating of all materials reduced surface roughness and increased gloss. After 5000 to 10 000 cycles of toothbrushing, the surface roughness of each material remained stable; while the gloss decreased slightly, it remained within clinically acceptable levels.

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刷牙对不同表面处理的 CAD-CAM 与传统临时材料的表面粗糙度和光泽度的影响。
问题陈述:对临时修复体进行表征可促进美观。目的:本体外研究的目的是评估 5 种不同表面处理的临时材料在模拟刷牙 1 年后的表面粗糙度和光泽度:用以下每种临时材料制作立方体试样(10×12×2 毫米):自聚聚甲基丙烯酸甲酯(UNIFAST Trad)、自聚双丙烯酸复合树脂(Protemp 4)、光活化复合树脂(REVOTEK LC)、研磨聚甲基丙烯酸甲酯块(DD provi P HI)和三维印刷甲基丙烯酸酯低聚物(Nextdent C&B MFH)。每种材料根据表面处理分为 3 组(n=10):抛光、涂 Lite Art 和树脂釉以及涂 OPTIGLAZE 颜色。试样分别进行了 5000 次和 10000 次刷牙。对表面粗糙度和光泽度进行了测量,并分别用 3 向重复测量方差分析(α=.05)进行了分析:结果发现,除 UNIFAST Trad 和 DD provi P HI(PConclusions)外,临时材料、表面处理和刷牙持续时间、REVOTEK LC(P>.999,P=.922)和 Nextdent C&B MFH(P>.999)之间的表面粗糙度和光泽度存在显著的交互作用(P.999):经过 5000 到 10000 次刷牙后,与不含填料的临时材料 UNIFAST Trad 和 DD provi P HI 相比,含填料的临时材料 Protemp 4、REVOTEK LC 和 Nextdent C&B MFH 的表面更光滑。所有材料的涂层都能减少表面粗糙度并增加光泽度。在刷牙 5000 到 10000 次后,每种材料的表面粗糙度都保持稳定;虽然光泽度略有下降,但仍在临床可接受的范围内。
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来源期刊
Journal of Prosthetic Dentistry
Journal of Prosthetic Dentistry 医学-牙科与口腔外科
CiteScore
7.00
自引率
13.00%
发文量
599
审稿时长
69 days
期刊介绍: The Journal of Prosthetic Dentistry is the leading professional journal devoted exclusively to prosthetic and restorative dentistry. The Journal is the official publication for 24 leading U.S. international prosthodontic organizations. The monthly publication features timely, original peer-reviewed articles on the newest techniques, dental materials, and research findings. The Journal serves prosthodontists and dentists in advanced practice, and features color photos that illustrate many step-by-step procedures. The Journal of Prosthetic Dentistry is included in Index Medicus and CINAHL.
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