Evaluation of liquid sorption and color stability of dental composites after exposure to common lactation teas

Abstract

Aim: To assess the effects of common lactation teas on liquid sorption and color stability of three different dental composites.
 Methodology: A total of 60 samples (n = 5) were examined from three composite materials: Omnichroma (Tokuyama Dental Co., Tokyo, Japan), Estelite Posterior, (Tokuyama Dental Co., Tokyo, Japan), and Mosaic Universal (Ultradent production Inc., South Jordan, UT, USA). Samples measuring 2x6 mm were taken and immersed in three different teas—Humana (Humana, Bremen, Germany), Hipp, (Hipp, Pfaffenhofen, Germany), and Lactamil (Nutricia, Friedrichsdorf, Germany) —as well as artificial saliva. The measurements were recorded at baseline and on the 7th day. A sensitive analytical balance was used to measure liquid sorption, and a VITA Easy Shade device was used for color measurements. Absorption and Delta E values ​​were calculated. The data were analyzed using MANOVA at a significance level of (p<0.05).
 Results: Composite materials, solutions, and their interactions had a statistically significant effect on the sorption and Delta E values (p<0.001). The relative liquid absorption values among the composites were recorded as follows: Tokuyama>Mosaic>Omnichroma. Humana had the highest and Hipp had the lowest mean value among the solutions (p<0.001). For Delta E, Mosaic had the highest mean value among the composites, and Lactamil had the highest mean value among the solutions (p<0.001).
 Conclusion: Lactation teas cause discoloration in dental composites. In vitro and in vivo studies on color changes in dental composites are needed due to the sorption of these fluids.
 
 How to cite this article: Özüdoğru S, Tosun G. Survival and clinical evaluation of various space maintainers used for early primary tooth loss. Int Dent Res 2021;11(Suppl.1):222-7.
 https://doi.org/10.5577/intdentres.2021.vol11.suppl1.32
 
 
 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Effect of coffee on color stability and surface roughness of newly introduced single shade resin composite materials

“…This result could be due to the adsorption and absorption of the yellow stains, which have low polarity. This low polarity of yellow stain can penetrate deeper layers of resin composite [ 21 ], in agreement with many studies [ 4 , 16 ]. On the opposite side, a study found an acceptable color change after immersion in coffee for 48 h E < 3.3; this may be due to differences in immersion solution preparation methods and concentration [ 28 ].…”

“…Recently, many manufacturers introduced a new single-shade resin composite as it has the advantage of reducing chair time and shade selection time [ 15 ]. Moreover, it was reported that any discoloration in the resin composite would affect the aesthetic [ 16 , 17 ]. Hence, the current study presented the problems of color stability of resin composite after exposure to commonly consumed drinks of different storage periods.…”

“…In this study, each step was made to standardize the methodology; the specimens’ thickness of 2 mm for the light cure unit, and the curing time was adjusted to 40 s with 20 s exposure time for the top and 20 s for the bottom, respectively [ 23 ], miller strip and the standardized finishing and polishing procedures. Specimens were immersed in distilled water for 24 h before immersion in the tested solutions to complete polymerization [ 16 ].…”

“…In the current in-vitro study, a static immersion was done for all specimens for one day and 14 days, equivalent to one month and 14 months of consumption, respectively [ 16 ]. The increase in temperature will accelerate color change in the restoration [ 24 ]; specimens were incubated to adjust the temperature at 37°c all the storage time to simulate the oral environment.…”

“…Group O2 and V2 demonstrated unacceptable color change after 14 days of immersion in distilled water which was consistent with a study that had an unacceptable color change of resin composite after immersion in distilled water for five days [ 21 ]. Moreover, it has been reported that the water absorption of composite resins reaches its highest level in 7–60 days [ 16 ]. In contrast to Farah and Elwi, who found that immersion in distilled water for seven days resulted in imperceptible color changes (ΔE ≤ 1) [ 29 ].…”