不同光固化强度照射后不同类型光固化复合树脂染色的分光光度评估：一项研究。

Spectrophotometric evaluation of staining of different types of light-cure composite resins after exposure with different light-cure intensities: An study.

作者信息

Pawar Pawan Anil, Gulve Meenal N, Aher Gayatri B, Kolhe Swapnil J, Pramaod J

机构信息

Department of Conservative Dentistry and Endodontics, M.G.V.'s K.B.H. Dental College and Hospital, Nashik, Maharashtra, India.

Department of Conservative Dentistry and Endodontics, AECS Maaruti College of Dental Sciences and Research Center, Bengaluru, Karnataka, India.

出版信息

J Conserv Dent. 2022 Sep-Oct;25(5):510-514. doi: 10.4103/jcd.jcd_214_22. Epub 2022 Jul 5.

DOI:10.4103/jcd.jcd_214_22

PMID:36506619

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9733546/

Abstract

CONTEXT

Relation between the adequate intensity output of curing lights on color stability of composite resin is well accepted.

AIMS

To investigate the effect of different light-curing intensities and its relation to color stability of different polymerized composite resin materials using the spectophotometric analysis.

SETTINGS AND DESIGN

Comparative study done on composite resin discs.

SUBJECTS AND METHODS

A total of 180 discs comprising sixty discs prepared from three different composite resins, namely microhybrid composite resin (Filtek Z100,3M ESPE), nanohybrid composite resin (Filtek Z250 XT, 3M ESPE), and nanofilled composite resin (Filtek Z350 XT,3M ESPE) using three different light curing intensities, viz., 325-425 mW/cm, 750-850 mW/cm, and 1000-1100 mW/cm. Later these discs were stained with 2% methylene blue followed by re-absorption in absolute alcohol for supernatant solution preparation which is used for the spectrophotometric analysis.

STATISTICAL ANALYSIS USED

Spectrophotometric absorption values were analyzed using the one-way ANOVA test for intergroup analysis.

RESULTS

Mean stain absorption was the highest with nanofilled composite resin (Filtek Z350 XT,3M ESPE) after exposure with light-curing intensity of 325-425 mW/cm and least with microhybrid composite resin (Filtek Z100, 3M ESPE) after exposure with light-curing intensity of 750-850 mW/cm and this difference found was highly significant statistically ( < 0.001).

CONCLUSIONS

Microhybrid composite resin (Filtek Z100, 3M ESPE) cured with intensity of 750-850 mW/cm showed least stain absorption indication most color stability and esthetic function.

摘要

背景

固化灯的适当强度输出与复合树脂颜色稳定性之间的关系已得到广泛认可。

目的

使用分光光度分析研究不同光固化强度的影响及其与不同聚合复合树脂材料颜色稳定性的关系。

设置与设计

对复合树脂圆盘进行对比研究。

对象与方法

总共180个圆盘，其中60个圆盘由三种不同的复合树脂制成，即微混合复合树脂（Filtek Z100，3M ESPE）、纳米混合复合树脂（Filtek Z250 XT，3M ESPE）和纳米填充复合树脂（Filtek Z350 XT，3M ESPE），使用三种不同的光固化强度，即325 - 425 mW/cm、750 - 850 mW/cm和1000 - 1100 mW/cm。之后，这些圆盘用2%的亚甲蓝染色，然后在无水乙醇中再吸收以制备用于分光光度分析的上清液。

所用统计分析

使用单向方差分析测试对分光光度吸收值进行组间分析。

结果

在325 - 425 mW/cm光固化强度照射后，纳米填充复合树脂（Filtek Z350 XT，3M ESPE）的平均染色吸收最高；在750 - 850 mW/cm光固化强度照射后，微混合复合树脂（Filtek Z100，3M ESPE）的平均染色吸收最低，并且发现这种差异具有高度统计学意义（<0.001）。