修整和抛光程序对树脂基复合材料表面粗糙度、光泽度和颜色的影响。

Effect of finishing and polishing procedures on surface roughness, gloss and color of resin-based composites.

作者信息

Paravina Rade D, Roeder Leslie, Lu Huan, Vogel Karin, Powers John M

机构信息

Houston Biomaterials Research Center, Department of Restorative Dentistry and Biomaterials, The University of Texas Health Science Center at Houston Dental Branch, 6516 M.D. Anderson Boulevard, Houston, TX 77030-3402, USA.

出版信息

Am J Dent. 2004 Aug;17(4):262-6.

PMID:15478488

Abstract

PURPOSE

To evaluate the effects of different finishing and polishing procedures on surface roughness, gloss and color of five resin composites: two experimental microhybrid composites - FZ-Dentin (FZD) and FZ-Enamel (FZE), one commercial microhybrid composite - Esthet-X (EX), and two microfilled composites - Heliomolar (HM) and Renamel Microfill (RM).

METHODS

Surface roughness, gloss and color of the disc-shaped specimens (10 mm in diameter and 2-mm thick) were measured as Mylar (baseline), 16-fluted carbide bur and polishing were completed. Sixteen specimens of each composite were randomized to four groups of four. After finishing with a 16-fluted finishing bur, each group was polished by a different system: 1. Astropol (A), 2. Sof-lex disc (S), 3. Po-Go (P), 4. Enhance (E). Average surface roughness (Ra) was measured with a profilometer. Gloss measurements were performed using small-area glossmeter, while color coordinate values were recorded using a spectrophotometer. A deltaE*ab< or =1 was considered to be the limit of perceptibility.

RESULTS

The order of surface roughness ranked according to polishing system (for all five composites together) was: P < S < E < A. The order of surface roughness ranked according to composites was: RM < FZD < FZ < HM < EX. The order of gloss ranked according to polishing system (for all five composites together) was: P > E > A > S. The order of gloss values for the polished composites (for each of four polishing systems) was: RM > FZD > FZE > HM > EX. Fisher's PLSD intervals at the 0.05 level of significance for comparisons of means of surface roughness among five composites and four polishing systems were 0.01 and 0.01 microm, respectively. Fisher's PLSD intervals at the 0.05 level of significance for comparisons of means of gloss among five composites and four polishing systems were 6 and 5 GU, respectively. Color differences (deltaE*ab) among five composites and four polishing methods were found to range from 0.2 to 1.1.

摘要

目的

评估不同的修整和抛光程序对五种树脂复合材料的表面粗糙度、光泽度和颜色的影响，这五种树脂复合材料分别为：两种实验性微混合复合材料——FZ-牙本质（FZD）和FZ-釉质（FZE），一种市售微混合复合材料——Esthet-X（EX），以及两种微填料复合材料——Heliomolar（HM）和Renamel微填料（RM）。

方法

测量圆盘形试件（直径10毫米，厚2毫米）作为聚酯薄膜（基线）的表面粗糙度、光泽度和颜色，完成16刃硬质合金车针修整和抛光。每种复合材料的16个试件随机分为四组，每组四个。用16刃修整车针修整后，每组用不同的系统进行抛光：1. Astropol（A），2. Sof-lex圆盘（S），3. Po-Go（P），4. Enhance（E）。用轮廓仪测量平均表面粗糙度（Ra）。使用小面积光泽仪进行光泽度测量，同时用分光光度计记录颜色坐标值。ΔE*ab≤1被认为是可察觉性的限度。

结果

根据抛光系统（对于所有五种复合材料）排列的表面粗糙度顺序为：P＜S＜E＜A。根据复合材料排列的表面粗糙度顺序为：RM＜FZD＜FZ＜HM＜EX。根据抛光系统（对于所有五种复合材料）排列的光泽度顺序为：P＞E＞A＞S。对于抛光后的复合材料（对于四种抛光系统中的每一种），光泽度值的顺序为：RM＞FZD＞FZE＞HM＞EX。在0.05显著性水平下，用于比较五种复合材料和四种抛光系统表面粗糙度平均值的Fisher最小显著差异区间分别为0.01和0.01微米。在0.05显著性水平下，用于比较五种复合材料和四种抛光系统光泽度平均值的Fisher最小显著差异区间分别为6和5光泽单位（GU）。发现五种复合材料和四种抛光方法之间的颜色差异（ΔE*ab）范围为0.2至1.1。