Effect of Home Bleaching Agents on Color Stability and Surface Roughness of Hybrid Ceramics: An In Vitro Study

Ünver, Senem; Yildirim, Arzu Zeynep

doi:10.11607/ijp.7373

Cited by 4 publications

(7 citation statements)

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“…The results were in line with previous studies that confirmed an increase in the surface roughness of ceramics after bleaching [35][36][37][38]. The authors explained these higher roughness values to be due to the etching of the ceramic caused by the carbamide peroxide agent and have declared the influence of the bleaching agent to be linked to the depth of its penetration into the restorative materials [35,[37][38][39]. Different penetration levels alter the surface topography of the dental ceramics, which may also affect the final color of the restorations [35,39].…”

Section: Discussionsupporting

confidence: 93%

“…The SEM analysis also confirmed the appearance of a rough porous surface after bleaching, indicating the penetration of the bleaching agent into deeper areas of the surface and resulting in an irregular surface with different levels of heights and depths. The results were in line with previous studies that confirmed an increase in the surface roughness of ceramics after bleaching [35][36][37][38]. The authors explained these higher roughness values to be due to the etching of the ceramic caused by the carbamide peroxide agent and have declared the influence of the bleaching agent to be linked to the depth of its penetration into the restorative materials [35,[37][38][39].…”

Section: Discussionsupporting

confidence: 91%

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Effect of Home Bleaching on the Optical Properties and Surface Roughness of Novel Aesthetic Dental Ceramics

et al. 2023

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The optical qualities of cutting-edge aesthetic dental ceramics are crucial for great aesthetics and may be impacted by various bleaching methods. The objectives of this study were to evaluate how home bleaching affected the translucency parameter (TP), contrast ratio (CR), total color difference (ΔE), and surface roughness (Ra) of various aesthetic dental ceramics, including innovative ultra-translucent zirconia. The three varieties of ceramics that were tested—IPS e.max-Press (IPS); classic zirconia with feldspathic layering (LZr); and translucent zirconia (TZr)—were each represented by seven samples. The samples were bleached at home using 15% carbamide peroxide for six hours a day for seven days. Each specimen’s pre- and post-bleaching CIE L*a*b* values were measured using a spectrophotometer, and the TP, CR, and ΔE were determined. Ra values were measured via 3D profilometry. In comparison to the pre-stage results, statistical analysis showed a significant decrease in TP and increase in CR for LZr and TZr in the post-stage (p < 0.05), but not for IPS (p = 0.398). The results also showed substantial variations in ΔE for the three ceramics (p = 0.020). Ra readings during the post-stage were noticeably greater than those at the pre-stage (p = 0.018). Home bleaching had an impact on the optical characteristics and surface texture of the dental ceramics. Additionally, IPS had greater color stability than LZr and TZr.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 91%

Effect of Home Bleaching on the Optical Properties and Surface Roughness of Novel Aesthetic Dental Ceramics

et al. 2023

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“…Studies report the critical threshold value of R a values of dental restorations in in vivo conditions as being 0.2 μm. It has been argued that restorations with a higher R a value may be particularly prone to discoloration and the formation of microbial dental plaque (Ünver & Yildirim, 2022). However, different studies have shown that the expected negative situations do not occur in restorations with R a values above 0.2 μm (Al‐Wahadni, 2006; Tholt de Vasconcellos et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…discoloration and the formation of microbial dental plaque(Ünver & Yildirim, 2022). However, different studies have shown that the expected negative situations do not occur in restorations with R a values above 0.2 μm (Al-Wahadni, 2006; Tholt de Vasconcellos…”

mentioning

confidence: 99%

Changes in physical properties of universal composites and CAD/CAM materials after bleaching and antioxidant applications: Scanning electron microscope and atomic force microscope evaluation

Tuysuz,

Gurses

2024

Microscopy Res & Technique

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To evaluate the effects of vital bleaching agents and the subsequent application of ascorbic acid (AA) to universal composites and resin‐based CAD/CAM blocks on the physical properties of materials. In the study; G‐enial A'chord (GCA), Filtek Ultimate (FU), Clearfil Majesty (CM) composites, and LAVA Ultimate (LU), Cerasmart (GCC) CAD/CAM blocks were used. The materials were divided into two subgroups based on the applied bleaching type (n = 30/group): office bleaching (OB) and home bleaching (HB). After bleaching, AA was applied to the samples. Surface roughness, microhardness, and color change values of all samples were measured at three stages: initial (I), post‐bleaching (B), and post‐bleaching+AA application (BA). Statistical analysis was performed using 3‐way Mixed ANOVA with Bonferroni correction (p < .05). The BA of the HB group of CM; the B of the HB group of LU; the B roughness values of both the OB and HB groups of GCC were significantly lower than I. The microhardness values of all the materials examined decreased significantly after both bleaching (p < .05). With regard to the AA application, it significantly decreased Ra values in the HB group of CM. In addition, it significantly increased the microhardness values in the HB groups of CM and GCC. Also, the ΔE001 and ΔE002 values for the FU and GCC HB groups were significantly higher than in the OB groups (p < .05). Bleaching and AA application affected the physical properties of the materials. The physical properties of the materials either remained unchanged or improved with the application of AA after bleaching.Research Highlights This article presents in vitro results of a new approach that has not been studied before. Ascorbic acid, used to increase the bond strength between the material‐tooth after bleaching, was used to eliminate the adverse effects of bleaching on the physical properties of aesthetic restorative materials. Additionally, the effects of all procedures on the materials were examined using scanning electron microscopy (SEM) and atomic force microscopy (AFM). As a result of the study, it was concluded that the application of ascorbic acid after bleaching improved the physical properties of some of the materials.

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“…Bu çalışma ile benzer olarak, ev tipi beyazlatmanın hibrid seramiklerdeki renk değişimini değerlendiren bir çalışmada, klinik olarak kabul edilebilir renk farklılıkları meydana gelmiştir. 28 CS, yüksek sıcaklık ve basınç ile polimerize edilmiş bir CAD/CAM kompozit bloğudur. Geleneksel bir kompozit rezine göre daha iyi polimerize edilmiştir ve böylece daha az gözenekli yapı içerir.…”

Section: Discussionunclassified

The Effect of Home Bleaching Application on Different Types of Colored Resin Materials on Color Changes: An In Vitro Study

BATMAZ¹,

Yıldırım²

2022

Turkiye Klinikleri J Dental Sci

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Bu çalışmanın amacı, bir 3B baskılı daimi reçine, bir nanoseramik rezin bilgisayar destekli tasarım/bilgisayar destekli üretim [computer aided design/computer aided manufacturing (CAD/CAM)] bloğu, bir bulk-fill ve bir konvansiyonel kompozit rezinin renklendirici ajan ile renk değişimini ve ev tipi beyazlatmanın etkisini değerlendirmektir. Gereç ve Yöntemler: Toplamda 40 rezin örnek [daimi reçine (DR), Cerasmart (CS), SonicFill (SF), Solare X (SX)] 6 mm çapında ve 2 mm kalınlığında hazırlanmıştır. Başlangıç renk değeri spektrofotometre ile ölçülen örnekler, 30 gün boyunca distile su ve kahvede bekletilmiştir. Renklendirme sonrası spektrofotometre ile ölçüm tekrarlanmış ve örneklere ev tipi beyazlatma ajanı 7 gün boyunca günde 6 saat uygulanmıştır. Beyazlatma uygulamasından sonra da renk değeri spektrofotometre ile ölçülmüştür. Başlangıç, 30 günlük renklendirme ve beyazlatma işleminden sonraki renk değişimi değerleri CIEDE2000 formülü ile hesaplanmıştır. Kompozitler arasındaki renk değişimi farkları tek yönlü ANOVA ve Bonferroni testi ile renklendirici sıvılar arasındaki renk değişimi farkları bağımsız t-testi ile değerlendirildi. Materyallerinin L * , a * ve b * değerlerinin renklendirme sıvılarına ve beyazlatma ajanına bağlı renk değişimleri repeated measure (tekrarlı ölçüm) ANOVA ile analiz edildi. Bulgular: Solüsyonlarda bekletme sonrası en fazla renklenme distile su grubu için DR'de, kahve grubu için ise SX'te görülmüştür. Her iki grupta da en az renklenme CS'de meydana gelmiştir. Beyazlatma sonrasında ise distile su grubunda bekletilen DR, SF ve SX dışında tüm örneklerde eşik değerin üzerinde renk değişikliği gözlenmiştir. Sonuç: DR'nin daha fazla renklenmesi ve beyazlatma yanıtının daha düşük olması estetik bölgede kullanımını güçleştirebilir. Bu çalışmanın sınırları dahilinde, CAD/CAM ile üretilen rezin bloğun renklenmeye karşı daha stabil olduğu ve beyazlatma yanıtının daha iyi olduğu söylenebilir. Anah tar Ke li me ler: Diş beyazlatma; diş renklenmesi;SonicFill; üç boyutlu baskı ABS TRACT Objective:The aim of this study was to evaluate the color change of a 3D printed permanent resin, a nanoceramic resin computer aided design/computer aided manufacturing (CAD/CAM) block, a bulk-fill and a conventional composite resin with a coloring agent and the effect of home bleaching. Material and Methods: A total of 40 resin samples [permanent resin (DR), Cerasmart (CS), SonicFill (SF), Solare X (SX)] were prepared with a diameter of 6 mm and a thickness of 2 mm. The samples were kept in distilled water and coffee for 30 days after the initial color value was measured with a spectrophotometer. After coloring, the measurement with spectrophotometer was repeated and home bleaching agent was applied to the samples for 6 hours a day for 7 days. After bleaching, color measurement was repeated with a spectrophotometer. Color change values after initial, 30-day coloring and bleaching were calculated with the CIEDE2000 formula. Color change differences between composites were evaluated with one-way ANOVA and Bonferroni test,...

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Effect of Home Bleaching Agents on Color Stability and Surface Roughness of Hybrid Ceramics: An In Vitro Study

Cited by 4 publications

References 0 publications

Effect of Home Bleaching on the Optical Properties and Surface Roughness of Novel Aesthetic Dental Ceramics

Effect of Home Bleaching on the Optical Properties and Surface Roughness of Novel Aesthetic Dental Ceramics

Changes in physical properties of universal composites and CAD/CAM materials after bleaching and antioxidant applications: Scanning electron microscope and atomic force microscope evaluation

The Effect of Home Bleaching Application on Different Types of Colored Resin Materials on Color Changes: An In Vitro Study

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