Yıl 2020, Cilt 11 , Sayı 1, Sayfalar 65 - 70 2020-03-03

Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics

Esra KUL [1] , Funda BAYINDIR [2]


Abstract

Objective: The most common cause of clinical failures in all-ceramic dental restorations is crack formation in the veneering ceramic. The aim of this study was to determine whether graphene doping would change the characteristics of hardness and discoloration of the ceramic veneer surface.

Material-Method:Thirty disk-shaped cores (10 mm in diameter and 0.8 mm in thickness) were prepared. Three different ceramic systems, IPS Empress (E) (Ivoclar Vivadent, Schaan, Liechtenstein), IPS e.max Press (EP)(Ivoclar Vivadent, Schaan, Liechtenstein), and Turkom Cera (TC) (Turcom-Ceramic SDN-BHD, Kuala Lumpur, Malaysia) were tested, each with n=8. The Vickers hardness and color difference (ΔE) values were measured before and after doping with graphene. Surface analysis was performed with XRD, XPS, and SEM. The Wilcoxon signed-rank test was performed to compare hardness values. The Kruskal-Wallis test was performed to compare ∆E values among all groups. The Kruskal-Wallis one-way ANOVA was used for the post hoc tests after the Kruskal-Wallis test (α=.05).

Results: A significant difference was found among the groups and the mean values of ∆E (p = 0.002). According to the post hoc test results, this difference was found between TC and E groups (p = 0.002). Although graphene doping increased hardness significantly in group E, it was also found to decrease in group TC. The mean ∆E values indicated clinically noticeable (over the limit of 3.7) color change in all groups.

Conclusions: Graphene doping may change the surface hardness of dental ceramics depending on the content of the ceramic. Similarly, depending on the content of the ceramic, it may affect its color to varying degrees. Graphene doping increased surface hardness only in group E but negatively affected the color of ceramic. Its application could be useful in the palatal region. 

Keywords: Dentalceramics; Color; Doping; Hardness

Ceramics; Color; Doping; Hardness
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Birincil Dil en
Konular Sağlık Bilimleri ve Hizmetleri
Bölüm Araştırma Makaleleri
Yazarlar

Orcid: 0000-0003-4750-8955
Yazar: Esra KUL (Sorumlu Yazar)
Kurum: ATATÜRK ÜNİVERSİTESİ, DİŞ HEKİMLİĞİ FAKÜLTESİ
Ülke: Turkey


Orcid: 0000-0001-5699-2879
Yazar: Funda BAYINDIR
Kurum: ATATÜRK ÜNİVERSİTESİ, DİŞ HEKİMLİĞİ FAKÜLTESİ
Ülke: Turkey


Tarihler

Yayımlanma Tarihi : 3 Mart 2020

Bibtex @araştırma makalesi { sdusbed634657, journal = {Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi}, issn = {2146-1937}, eissn = {2146-247X}, address = {}, publisher = {Süleyman Demirel Üniversitesi}, year = {2020}, volume = {11}, pages = {65 - 70}, doi = {10.22312/sdusbed.634657}, title = {Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics}, key = {cite}, author = {KUL, Esra and BAYINDIR, Funda} }
APA KUL, E , BAYINDIR, F . (2020). Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi , 11 (1) , 65-70 . Retrieved from https://dergipark.org.tr/tr/pub/sdusbed/issue/52830/634657
MLA KUL, E , BAYINDIR, F . "Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics". Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi 11 (2020 ): 65-70 <https://dergipark.org.tr/tr/pub/sdusbed/issue/52830/634657>
Chicago KUL, E , BAYINDIR, F . "Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics". Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi 11 (2020 ): 65-70
RIS TY - JOUR T1 - Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics AU - Esra KUL , Funda BAYINDIR Y1 - 2020 PY - 2020 N1 - DO - T2 - Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi JF - Journal JO - JOR SP - 65 EP - 70 VL - 11 IS - 1 SN - 2146-1937-2146-247X M3 - UR - Y2 - 2020 ER -
EndNote %0 Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics %A Esra KUL , Funda BAYINDIR %T Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics %D 2020 %J Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi %P 2146-1937-2146-247X %V 11 %N 1 %R %U
ISNAD KUL, Esra , BAYINDIR, Funda . "Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics". Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi 11 / 1 (Mart 2020): 65-70 .
AMA KUL E , BAYINDIR F . Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi. 2020; 11(1): 65-70.
Vancouver KUL E , BAYINDIR F . Effect of thin-layer graphene doping on the color and surface hardness of dental ceramics. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi. 2020; 11(1): 70-65.