Effects of different types of molds on the color difference, translucency, surface roughness, and hardness of a maxillofacial silicone elastomer.

IF 1.9 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE
Journal of oral science Pub Date : 2025-01-16 Epub Date: 2024-12-06 DOI:10.2334/josnusd.24-0212
Ceyda B İnal, Merve Bankoğlu Güngör, Bilge Turhan Bal, Seçil Karakoca Nemli
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引用次数: 0

Abstract

Purpose: The purpose of the present study was to evaluate the effects of dental stone molds and three dimensional (3D)-printed molds on the color difference, translucency, surface roughness, and hardness of maxillofacial silicones.

Methods: To prepare molds, a rectangular body 20 mm in diameter and 2 mm in thickness, was designed with computer-aided design software. Two different dental gypsum molds were prepared with the lost-wax technique. Silicone mixture was poured into molds and polymerized at room temperature for 24 h. Color parameters were measured using a spectrophotometer. A profilometer was used for measuring surface roughness, and Shore A values were obtained with a durometer.

Results: Color change (ΔE00) values of the 3D-resin group (1.53 ± 0.35) were significantly lower than others. The highest translucency parameter (TP) values belonged to the stainless steel group (12.44 ± 0.65). Surface roughness values (Ra) of the stainless steel group (0.28 ± 0.06) were significantly lower than other groups. The mean Shore A value of the 3D-resin group (23.90 ± 1.37) was significantly higher than the blue gypsum group (21.53 ± 0.93).

Conclusion: Lower color difference and higher Shore A values were examined with 3D-printed resin molds. The highest TP values and lowest Ra values were obtained when stainless steel was used for molding of maxillofacial silicone.

不同类型的模具对颌面硅胶弹性体的色差、透明度、表面粗糙度和硬度的影响。
目的:本研究的目的是评价牙石模具和三维打印模具对颌面有机硅的色差、半透明、表面粗糙度和硬度的影响。方法:用计算机辅助设计软件制作模具,模具为直径20 mm、厚度2 mm的矩形体。采用脱蜡技术制备了两种不同的牙石膏模具。将硅胶混合物倒入模具中,室温下聚合24小时。用分光光度计测量颜色参数。用轮廓仪测量表面粗糙度,用硬度计测量邵尔A值。结果:3d树脂组的颜色变化(ΔE00)值(1.53±0.35)明显低于其他组。半透明参数(TP)值最高的是不锈钢组(12.44±0.65)。不锈钢组表面粗糙度值Ra(0.28±0.06)显著低于其他组。3d树脂组Shore A平均值(23.90±1.37)明显高于蓝石膏组(21.53±0.93)。结论:3d打印树脂模具具有较低的色差和较高的Shore A值。用不锈钢进行颌面硅胶成型时,TP值最高,Ra值最低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of oral science
Journal of oral science DENTISTRY, ORAL SURGERY & MEDICINE-MATERIALS SCIENCE, BIOMATERIALS
CiteScore
3.80
自引率
0.00%
发文量
58
期刊介绍: Information not localized
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