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不同纤维浓度对临时冠和固定局部义齿树脂表面粗糙度的影响。

The effect of different fiber concentrations on the surface roughness of provisional crown and fixed partial denture resin.

作者信息

Zortuk Mustafa, Kılıc Kerem, Uzun Gulay, Ozturk Ahmet, Kesim Bulent

机构信息

Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.

出版信息

Eur J Dent. 2008 Jul;2(3):185-90.

PMID:19212545
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2635901/
Abstract

OBJECTIVES

The aim of this study was to investigate surface roughness in provisional crown acrylics, after polishing, reinforced with different concentrations of glass fibers.

METHODS

A total of 48 disk-shaped specimens were prepared using autopolymerizing acrylic resin. These specimens were divided into four groups according to the level of glass fiber added: Group A (no fiber), Group B (0.5%), Group C (1%) and Group D (2%). After polishing the specimens, an average surface roughness (Ra) value was calculated using a profilometer from four randomly selected points on the surface.

RESULTS

A significant difference was determined among the surface roughness values of provisional crown resins to which different concentrations of fiber had been added (P<.001). Tukey's test was then used to perform paired comparisons of the data between the different groups, and a significant difference was found between Group A (no fiber) and the other groups, between Group B (0.5%) and Group D (2%) and between Group C (1%) and Group D. On the other hand, there was no significant difference between Group B and Group C.

CONCLUSIONS

The reinforcement of provisional crown and fixed partial denture resin with glass fibers increases surface roughness.

摘要

目的

本研究旨在调查经不同浓度玻璃纤维增强的临时冠丙烯酸树脂在抛光后的表面粗糙度。

方法

使用自凝丙烯酸树脂制备48个圆盘形试件。根据添加玻璃纤维的水平将这些试件分为四组：A组（无纤维）、B组（0.5%）、C组（1%）和D组（2%）。对试件进行抛光后，使用轮廓仪从表面随机选取的四个点计算平均表面粗糙度（Ra）值。

结果

添加不同浓度纤维的临时冠树脂表面粗糙度值之间存在显著差异（P<0.001）。然后使用Tukey检验对不同组之间的数据进行配对比较，发现A组（无纤维）与其他组之间、B组（0.5%）与D组（2%）之间以及C组（1%）与D组之间存在显著差异。另一方面，B组和C组之间没有显著差异。

结论

用玻璃纤维增强临时冠和固定局部义齿树脂会增加表面粗糙度。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/fa22e614751f/189_fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/475654051c2c/188_fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/cf961a86cdf5/188_fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/e6bc424836c2/188_fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/93fe42afc6e6/188_fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/c1166e5bab3a/189_fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/a7ab6937df02/189_fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/d3063841a6a1/189_fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/686893c5656a/189_fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/fa22e614751f/189_fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/475654051c2c/188_fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/cf961a86cdf5/188_fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/e6bc424836c2/188_fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/93fe42afc6e6/188_fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/c1166e5bab3a/189_fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/a7ab6937df02/189_fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/d3063841a6a1/189_fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/686893c5656a/189_fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f21b/2635901/fa22e614751f/189_fig9.jpg

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