Color Stability of Microhybrid and Nanofilled Composite Resins: Effect of Surface Sealant Agents Containing Different Filler Content

This study investigated the effect of sealant application on the color stability of composite resin restorations. Cavities in bovine incisors were restored with composite resin (Opallis; FGM) and the teeth were assigned to 4 groups (n=10). A sealant (Fill Glaze; Vigodent) was applied over the restorations of 2 groups. Baseline color measurements based on the CIEL*a*b* system were carried out using a spectrophotometer. Half the number of specimens was immersed in distilled water, and half was immersed in coffee 4 h/day. Color measurements were repeated after 1 h, 24 h, 7 days and 3 months. Data for each immersion solution were separately subjected to a two-way repeated measures ANOVA and Tukey’s test (α=0.05). For the group without sealant immersed in water, no significant differences were observed among the periods (p≥0.138), but the color was different compared with baseline (p<0.001). For the group with sealant application, the periods baseline, 1 h and 3 months presented similar results (p≥0.924). For groups immersed in coffee, when the sealant was not used, no significant differences were detected between the baseline and the periods 1 h and 24 h (p≥0.499), but the color changed significantly thereafter (p≤0.003). In the group with sealant, significant differences were detected for all periods compared with each other (p<0.001). In conclusion, application of sealant dramatically increased the staining of the restorations exposed to coffee.

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A Study on Repair Restoration of High-Filler-Content Prosthetic Composite Resins. Effect of Surface Treatment Conditions on Bending Bond Strength.

Nihon Hotetsu Shika Gakkai Zasshi ◽

10.2186/jjps.45.632 ◽

2001 ◽

Vol 45 (5) ◽

pp. 632-641 ◽

Cited By ~ 3

Author(s):

Yoshikazu Kawamoto ◽

Norihide Hinokiyama ◽

Mika Nemoto ◽

Hiromitsu Shima ◽

Kazushige Kawahara ◽

...

Keyword(s):

Bond Strength ◽

Surface Treatment ◽

Filler Content ◽

Composite Resins ◽

Treatment Conditions ◽

Effect Of Surface

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Effect of Surface Wetting Resin on the Color Stability and Microhardness of Esthetic Composites

Odovtos - International Journal of Dental Sciences ◽

10.15517/ijds.2021.44391 ◽

2020 ◽

pp. 285-292

Author(s):

Suzan Cangul ◽

Begum Erpacal ◽

Ozkan Adiguzel ◽

Mehmet Unal ◽

Ayse Gunay

Keyword(s):

Statistical Evaluation ◽

Color Stability ◽

Composite Resins ◽

Control Group ◽

Surface Wetting ◽

Surface Microhardness ◽

The One ◽

One Way Anova ◽

Effect Of Surface

Objective: The aim of this study was to evaluate and compare the effects of the superficial application of two different modeling resins on the surface microhardness and discoloration of composite resins. Material and Methods: The present study used two different composites and modeling resins. The composites were placed in plastic molds. Subsequently, the modeling resins were applied on the surface of the two composite groups. The microhardness and color pertaining to all the groups were evaluated. The current study used the One-Way ANOVA and Kruskal Wallis tests, in order to perform the statistical evaluation (p<0.05). Results: The present study compared the microhardness pertaining to the groups and the highest microhardness values were observed in the Estelite Asteria group (none), whereas the lowest values were observed in the GC Essentia group (Ultradent). Moreover, the current study evaluated the color stability and the greatest discoloration was observed in the control group of the GC Essentia group, whereas the least discoloration was observed in the Estelite Asteria group that included the samples prepared using Ultradent Wetting Resin. Conclusions: The results of the present study demonstrated that the use of modeling resins, which facilitate the placement of composite resins, reduced the microhardness and discoloration of composite resins. The aforementioned effect can be attributed to the variations in the structure of the filling. However, further studies are warranted to support and verify the results of the current study.

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Effect of surface polishing and oral beverages on the surface profile and color stability of two composite resins – in vitro

International Journal of Current Advanced Research ◽

10.24327/ijcar.2017.2625.0059 ◽

2017 ◽

Vol 6 (3) ◽

pp. 2619-2625

Author(s):

Deepika Thosre Chandhok ◽

◽

Jasmeet Singh Chandhok ◽

Sanjyot Mulay ◽

Grishmi Niswade ◽

...

Keyword(s):

Surface Profile ◽

Color Stability ◽

Composite Resins ◽

Surface Polishing ◽

Effect Of Surface

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Effect of surface sealant agents on the surface roughness and color stability of denture base materials

Journal of Prosthetic Dentistry ◽

10.1016/j.prosdent.2016.03.007 ◽

2016 ◽

Vol 116 (4) ◽

pp. 610-616 ◽

Cited By ~ 13

Author(s):

Onur Sahin ◽

Aysegül Koroglu ◽

Doğu Ömür Dede ◽

Burak Yilmaz

Keyword(s):

Surface Roughness ◽

Color Stability ◽

Denture Base ◽

Base Materials ◽

Surface Sealant ◽

Effect Of Surface

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Effect of surface sealant on surface roughness and bacterial adhesion of bulk-fill composites

Polymers and Polymer Composites ◽

10.1177/09673911211005586 ◽

2021 ◽

pp. 096739112110055

Author(s):

Gunce Ozan ◽

Meltem Mert Eren ◽

Cansu Vatansever ◽

Ugur Erdemir

Keyword(s):

Surface Roughness ◽

Bacterial Adhesion ◽

Confocal Laser ◽

High Caries Risk ◽

Two Samples ◽

Significant Difference ◽

Restorative Materials ◽

Surface Sealants ◽

Surface Sealant ◽

Effect Of Surface

Surface sealants are reported to ensure surface smoothness and improve the surface quality of composite restorations. These sealants should also reduce the bacterial adhesion on composite surfaces however, there is not much information regarding their performance on bulk-fill composite materials. The aim of this study was to evaluate the effect of surface sealant application on surface roughness and bacterial adhesion of various restorative materials. Disc-shaped samples were prepared from a compomer, a conventional composite and three bulk-fill composites. Specimens of each group were divided into two groups (n = 9): with/without surface sealant (Biscover LV, [BLV]). Surface roughness values were examined by profilometry and two samples of each group were examined for bacterial adhesion on a confocal laser scanning microscope (CLSM). Bacterial counts were calculated by both broth cultivation and microscopic images. Results were analyzed with one-way ANOVA and Bonferroni/Dunn tests. Following the BLV application, there was a decrease in the surface roughness values of all groups however, only Tetric N-Ceram Bulk and Beautifil-Bulk groups showed significantly smoother surfaces (p < 0.001). There were no significant differences among material groups without BLV application. Evaluating bacterial adhesion after BLV application, conventional composite had the lowest values among all followed by the compomer group. Beautifil-Bulk had significantly the highest bacterial adhesion (p < 0.05), followed by Tetric N-Ceram Bulk group. Without BLV application, there was no significant difference among bacterial adhesion values of groups (p > 0.05). CLSM images showed cell viability in groups. Bulk-fill composites showed higher bacterial adhesion than conventional composite and compomer materials. The surface sealant was found to be highly effective in lowering bacterial adhesion, but not so superior in smoothing the surfaces of restorative materials. So, surface sealants could be used on the restorations of patients with high caries risk.

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