Naslov
Effect of Bleaching Agent on Physical and Aesthetic Properties of Restorative Materials

Autori
Šimenc, Nika ; Klarić, Eva ; Rakić, Mario ; Sever, Ivan ; Tarle, Zrinka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Izvornik
J Dent Res 2015 ; 94 (Spec Iss C ) / - , 2015, 236-236

Skup
47th Meeting of Continental European Division of the International Association for Dental Research (CED-IADR)

Mjesto i datum
Antalya, Turska, 15.10.2015. - 17.10.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Restorative Materials ; Bleaching

Sažetak
Objectives To investigate the effect of bleaching agent on microhardness, color and light transmission of different restorative materials. Methods Specimens (n=20) of Tetric EvoCeram (TEC), Tetric EvoCeram Bulk Fill (TECBF) (Ivoclar Vivadent) and Equia (EQUIA) (GC) were randomly subdivided in two groups (n=10). Specimens were treated with Opalesence Boost (Ultradent) during 45 minutes or destilled water. Specimens were immersed in tea solution for 7 and 14 days. Color, microhardness and light transmission were monitored at baseline, after bleaching and after immersion. Microhardness was measured using Vickers tester. Color was measured using VITA Easyshade. Light transmission was measured using Ocean Optics spectrometer. Results Microhardness measurements showed statistically significant difference after bleaching, which was on average the highest TECBF (< 0.001) and of equal intensity when EQUIA and TEC (p < 0.001) were used. No significant difference in color change was observed in TECBF and TEC which was not clinically visible ΔE<2. EQUIA resulted in statistically significant difference after immersion in tea for 7 and 14 days (ΔE>3). The smallest light transmission was measured for TEC kept in tea solution for 7 days. EQUIA samples which were kept in tea solution for 7 and 14 days showed the weakest light transmission, and those values were noticeably greater (they differ from each other by 50%) in regard to TEC and TECBF. Conclusions Bleaching can affect the change in microhardness, color and light transmission of restorative materials and such filling should be sometimes replaced. This study was supported by Croatian Science Foundation.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Dentalna medicina

Napomena
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