与通用树脂复合材料相比，智能单色树脂复合材料在浸入染色溶液后颜色稳定性和表面粗糙度的评估。

Evaluation of color stability and surface roughness of smart monochromatic resin composite in comparison to universal resin composites after immersion in staining solutions.

作者信息

Kareem Ammar Shawkat Abdul, Abdel-Fattah Wegdan Mohamed, El Gayar Marihan Ibrahim Lotfy

机构信息

Department of Conservative Dentistry, Faculty of Dentistry, Alexandria University, Champollion St, Azarita, 21527, Alexandria, Egypt.

出版信息

BMC Oral Health. 2025 Jul 19;25(1):1211. doi: 10.1186/s12903-025-06555-5.

DOI:10.1186/s12903-025-06555-5

PMID:40684165

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12276654/

Abstract

BACKGROUND

The color stability and surface roughness of resin composites are the primary factors influencing the qualities of restorative materials. This study aimed to assess the color stability and surface roughness of a smart monochromatic resin composite submerged in various staining solutions.

MATERIALS AND METHODS

Ninety-nine disc samples of composite resins (8 mm in diameter and 2 mm in thickness) were prepared and divided into three groups (n = 33): Group A, Omnichroma (Tokuyama Dental, Tokyo, Japan); Group B, Neo Spectra ST HV (Dentsply, Konstanz, Germany); and Group C, Filtek Z350XT (3MESPE) composite resins. The samples were assessed for color stability (M) via a Vita Easyshade spectrophotometer and surface roughness (Ra) with a profilometer before and after thermocycling for a total of 1000 cycles at 5°/55°C with a 15-second dwell time. Each group was subdivided into three subgroups according to immersion solution (n = 11): Subgroup I was submerged in distilled water as a control, Subgroup II was submerged in tea, and Subgroup III was submerged in coffee. Color assessment was performed after immersion periods of T1: 7 days, T2: 15 days, and T3: 30 days with a Vita Easyshade spectrophotometer. A color change (∆E00) was obtained via the CIEDE2000 color difference formula. Surface roughness was assessed with a profilometer after 30 days of submersion in the staining solutions.

RESULTS

Among all the samples in the study groups, Omnichroma had the lowest color change value for all the immersion solutions at different time intervals (p < 0.001). The surface roughness of Omnichroma significantly differed after thermocycling (P = 0.075). However, Omnichroma had the least surface roughness compared with Neo Spectra ST HV (P = 0.026) and Filtek Z350XT (P = 0.024).

CONCLUSION

The color change and surface roughness of the supra-nanofilled (Omnichroma) resin-based composite were inferior to those of the nanohybrid (Neo Spectra) and nanofilled (Filtek Z350XT) composites.

摘要

背景

树脂复合材料的颜色稳定性和表面粗糙度是影响修复材料质量的主要因素。本研究旨在评估一种智能单色树脂复合材料在各种染色溶液中浸泡后的颜色稳定性和表面粗糙度。

材料与方法

制备99个复合树脂圆盘样本（直径8毫米，厚度2毫米），并分为三组（n = 33）：A组，Omnichroma（日本东京德山齿科）；B组，Neo Spectra ST HV（德国康斯坦茨登士柏）；C组，Filtek Z350XT（3M ESPE）复合树脂。在5°/55°C下进行总共1000次循环、保压时间为15秒的热循环前后，使用Vita Easyshade分光光度计评估样本的颜色稳定性（M），并使用轮廓仪评估表面粗糙度（Ra）。根据浸泡溶液将每组再细分为三个亚组（n = 11）：亚组I浸泡在蒸馏水中作为对照，亚组II浸泡在茶中，亚组III浸泡在咖啡中。在浸泡期T1：7天、T2：15天和T3：30天后，使用Vita Easyshade分光光度计进行颜色评估。通过CIEDE2000色差公式获得颜色变化（∆E00）。在染色溶液中浸泡30天后，使用轮廓仪评估表面粗糙度。

结果

在研究组的所有样本中，Omnichroma在不同时间间隔的所有浸泡溶液中颜色变化值最低（p < 0.001）。Omnichroma在热循环后的表面粗糙度有显著差异（P = 0.075）。然而，与Neo Spectra ST HV（P = 0.026）和Filtek Z350XT（P = 0.024）相比，Omnichroma的表面粗糙度最小。