Effects of air-polishing powders on color stability of composite resins

Abstract

ObjectivesThe purpose of this study was to investigate the effect of different air-polishing powders on the color stability of different types of composite resin restorative materials. Material and methodsThirty cylindrical specimens (15×2 mm) were prepared for each of 7 composite resin restorative materials. All specimens were polished with a series of aluminum oxide polishing discs (Sof-Lex). The prepared specimens of each composite resin were randomly divided into 3 groups of 10 specimens each, for control (Group-C) and two air-powder applications (Group-CP: Cavitron Prophy-Jet; Group-PS: Sirona ProSmile prophylaxis powder). A standard air-polishing unit (ProSmile Handly) was used. All specimens were air-powdered for 10 s at 4-bar pressure. The distance of the spray nosel from the specimens was approximately 10 mm and angulation of the nosel was 90º. Specimens were stored in 100 mL of coffee (Nescafe Classic) for 24 h at 37ºC. Color measurement of all specimens was recorded before and after exposure to staining agent with a colorimeter (Minolta CR-300). Color differences (∆E*) between the 2 color measurements (baseline and after 24 h storage) were calculated. The data were analyzed with a 2-way ANOVA test, and mean values were compared by the Tukey HSD test (p≤0.05). ResultsAccording to the 2-way ANOVA results, composite resin restorative materials, air-polishing powders, and their interaction were statistically significant (p<0.05) For Aelite Aesthetic Enemal, Filtek Z250, Grandio, CeramX Mono, and Quixfil composite resin restorative materials, no significant difference was observed between Group-PS and Group-CP (p>.05) and these groups demonstrated the highest ∆E* values. For Filtek Silorane and IntenS, the highest ∆E* values were observed in Group-PS. The lowest ∆E* values for all composite resin groups were observed in Group-C. When comparing the 7 composite resin restorative materials, Aelite Aesthetic Enemal demonstrated significantly less ∆E* values than the other composite resins tested. The highest ∆E* values were observed in Quixfil. ConclusionExcept for Quixfil, all control groups of composite resins that were polished Sof-Lex exhibited clinically acceptable ∆E values (<3.7). Air-polishing applications increased the color change for all composite resin restorative materials tested. Composite restorations may require re-polishing after air-polishing.

Cosmetic contour: minimally invasive cosmetic reformulation

“…7 Composite resins are widely used in the direct restoration of both anterior and posterior teeth for their esthetic, physical, and mechanical properties. 8 A logical sequence making use of various technical possibilities is desirable, particularly as a way of making the reconstructing process of anterior teeth predictable. 7 The current esthetic characteristics of composite resins and a better understanding of the behavior of dental tissues under light allow an imperceptible restoration to be performed.…”

A Review Of The Color Stability Of Resin Composites: The Etiology, Classification And The Treatment Of Composite Staining

“…Beyazlatma işlemi sırasında bu materyaller sadece dişlerle değil aynı zamanda restoratif materyallerle de temas ederler ve bu da birçok çalışmanın beyazlatma ajanlarının, restoratif materyallerin yüzey mikrosertliği, pürüzlülüğü ve renk stabilitelerine olan etkisi üzerine odaklanma nedenini açıklamaktadır. 76,77 Kompozit materyallerin beyazlatma ajanlarına olan tepkisinin, ajanın konsantrasyonu, türü ve toplam beyazlatma süresi ile ilişkili olabileceği bildirilmiştir. [78][79][80] Crest Night Effects, Colgate Simply White, Opalescence Quick beyazlatma ajanlarının rezin esaslı kompozit materyallerin dış renklenmelerini başarılı bir şekilde ortadan kaldırdıklarını gösteren bir çalışmada, bu ajanların kompozit restorasyonlar üzerindeki etkilerinin dişler kadar iyi olmadığı gözlenmiştir.…”

Mass change of a sodium bicarbonate air-polished nanocomposite exposed to cigarette smoke, coffee, and red wine

“…Its use on composite resin materials is considered a safe procedure in terms of the surface integrity of the material 11,12 . However, the increase in surface roughness 12 , in marginal defects on the composite-resin interface 13 , and changes in surface composition 11 or in optical properties of the composite materials have been described after its exposure to sodium bicarbonate air-polishing 14,15 .…”