Effects of the addition of titanium dioxide and silaned silica nanoparticles on the color stability of a maxillofacial silicone elastomer submitted to artificial aging

Pinar CEVİK

Makale detayları

Effects of the addition of titanium dioxide and silaned silica nanoparticles on the color stability of a maxillofacial silicone elastomer submitted to artificial aging

Yazarlar:

Pinar CEVİK

Dergi:

Cumhuriyet Dental Journal 2016 Vol.19 Issue 1, pp.9-15

Belge Tipi:

Makale

Yayın Tarihi:

1/2016

Belge Dili:

Türkçe

Document ID (Org No.):

2000735064

Özet:

 


Objectives: Silicone elastomers require replacement due to degradation of mechanical

properties and deterioration in color over time. Recently, various nanoparticles have been

incorporated into the silicones to reinforce their physical and mechanical properties. The

purpose of this study was to evaluate the effect of nanosized particle addition on the color

stability of a commercial RTV maxillofacial silicone elastomer submitted to an accelerated aging.

Materials and Methods: The nanosized particles (titanium dioxide and silaned silica) were

added, 10% by volume, into a maxillofacial elastomer. The samples (n=10) were polymerized in an

oven according to the manufacturer’s recommendations. Color measurements were performed

using digital spectrophotometry according to the CIE L*a*b* color system. The samples were

subsequently placed into an aging chamber for 168 h. The second color measurement of the

samples was performed after the aging process. Data obtained from the measurement was

recorded and assessed by (ANOVA) (α=0.05).

Results: The highest color stability was obtained with the silica and the TiO2 group samples;

the lowest color stability was obtained with the control group samples in this study. However;

no statistically significant difference in discoloration was observed in the ΔE values between the

groups (p > 0.05).

Conclusions: The results of this pilot study revealed that the addition of nanosized TiO2

and silica particles used as reinforcing agents did not cause any color degradation of an

A-2000 silicone during the first 2 months. Further studies should be done on the effect of such

nanoparticles in long term aging procedures on the color stability of maxillofacial elastomers.

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Makale detayları

Effects of the addition of titanium dioxide and silaned silica nanoparticles on the color stability of a maxillofacial silicone elastomer submitted to artificial aging

Yazarlar: Pinar CEVİK

Dergi: Cumhuriyet Dental Journal 2016 Vol.19 Issue 1, pp.9-15

Belge Tipi: Makale

Yayın Tarihi: 1/2016

Belge Dili: Türkçe

Document ID (Org No.): 2000735064

Sayı

Yazarlar:

Pinar CEVİK

Dergi:

Cumhuriyet Dental Journal 2016 Vol.19 Issue 1, pp.9-15

Belge Tipi:

Makale

Yayın Tarihi:

1/2016

Belge Dili:

Türkçe

Document ID (Org No.):

2000735064