COLOR STABILITY AND MICROHARDNESS OF DIFFERENT GLASS IONOMER CEMENTS

Year 2023, , 500 - 507, 23.09.2023

Uğur Burak Temel , Özge Kam Hepdeniz

https://doi.org/10.17343/sdutfd.1344186

Abstract

Objective
Glass ionomers are preferred in many different
treatment procedures in dentistry due to their positive
features. The aim of this study is to evaluate the
color difference and microhardness values of various
glass ionomer cement after storing them in different
solutions.
Material and Method
A total of 120 samples were prepared, including 40 of
each of the Equia Forte, AHfil Silver, and Ionofil glass
ionomers. Each glass ionomer sample was stored in
distilled water, cola, tea, and coffee solutions. Color
and microhardness measurements of the specimens
were performed before and after a week before it was
immersed in solutions. The color measurements of the
samples were evaluated with a spectrophotometer and
microhardness values were evaluated with Vickers
microhardness device. For color analysis, color
changes (ΔE) were calculated by obtaining the values
of L*, a*, and b* of the samples before and after a week
after being immersed in solutions. The data obtained
were evaluated by variance analysis (ANOVA) and
Tukey’s test.
Results
Except for specimens stored in cola for AHfil Silver,
microhardness values were increased for all materials
immersed in test solutions. The highest color change
was obtained in coffee for Equia Forte, in the samples
immersed in cola for AHfil Silver and Ionophil (p<0.05).
The lowest color change was detected in samples
stored in distilled water, and for Equia Forte and
Ionofil, the color change was below the acceptable
threshold value.
Conclusion
All the materials tested differ in microhardness and
color change values after being immersed in the test
environment. The increase in microhardness value
can be attributed to the increasing maturation of glass
ionomer cement over time, and color change can be
attributed to the amount of yellow dyestuff contained
in the solutions.

Keywords

color stability, microhardness, glass ionomer cement

FARKLI CAM İYONOMER SİMANLARIN RENK STABİLİTELERİ VE MİKROSERTLİKLERİ

Abstract

Amaç
Cam iyonomer simanlar sahip oldukları olumlu özelliklerden
dolayı diş hekimliğinde birçok farklı tedavi prosedüründe
tercih edilmektedir. Bu çalışmanın amacı,
farklı cam iyonomerlerin, farklı solüsyonlarda bekletildikten
sonraki renk farkı ve mikrosertlik sonuçlarını
değerlendirmektir.
Gereç ve Yöntem
Equia Forte, AHfil Silver ve Ionofil cam iyonomerlerin
her birinden 40 tane olmak üzere toplam 120 örnek
hazırlandı. Her cam iyonomere ait örnekler distile su,
kola, çay ve kahve solüsyonlarında bekletildi. Solüsyonlara
daldırılmadan önce ve bir hafta sonra örneklerin
renk ve mikrosertlik ölçümleri yapıldı. Örneklerin
renk ölçümleri bir spektrofotometre ile, mikrosertlik değerleri
ise Vickers mikrosertlik cihazı ile değerlendirildi.
Renk analizi için, solüsyonlara daldırılmadan önce
ve bir hafta sonra örneklerin L*, a* ve b* değerleri elde
edilerek renk değişimleri (ΔE) hesaplandı. Elde edilen
veriler varyans analizi (ANOVA) ve Tukey’s testi ile değerlendirildi.
Bulgular
AHfil Silver için kolada bekleyen örnekler dışında, tüm
materyaller için tüm sıvılarda bekletilen örneklerde
mikrosertlik değerlerinde bir artış gözlendi. En yüksek
renk değişimi Equia Forte için kahvede, AHfil Silver
ve Ionofil için kolada bekletilen örneklerde elde edildi
(p<0.05). En düşük renk değişimi distile suda bekletilen
örneklerde elde edildi ve bu değerler Equia forte ve
Ionofil için, kabul edilebilir renk değişimi eşik değerinin
altındaydı.
Sonuç
Test edilen tüm materyaller, test ortamına daldırıldıktan
sonra mikrosertlik ve renk değişim değerlerinde bir
farklılık göstermiştir. Mikrosertlik değerindeki artış cam
iyonomer simanların zamanla artan maturasyonuna,
renk değişimi ise solüsyonların içinde bulunan sarı boyar
madde miktarına atfedilebilir.

Keywords

renk stabilitesi, mikrosertlik, cam iyonomer siman

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