Investigation of different bleaching conditions on the amount of elutable substances from nano-hybrid composites

Durner, Jürgen; Obermaier, Julia; Ilie, Nicoleta

doi:10.1016/j.dental.2013.11.003

Cited by 27 publications

(19 citation statements)

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“…Silane bonding agents, such as 3-methacryloxypropyltrimethoxysilane, are commonly used in dentistry to chemically bond the organic and inorganic structures. The released material after bleaching composite resins was examined in a study by Durner et al (7); the detection of diethoxydimethylsilane in the solution was noted to be a sign that the bleaching agent increased monomer release from recently cured composites. Monomer released from bleached dental composite restorations was examined by Polydorou et al (8) with the observation that bleaching increased the monomer release.…”

Section: Discussionmentioning

confidence: 99%

“…Pinar Gul 1) , Ozcan Karatas 1) , Hamit H. Alp 2) , Ihsan B. Cam 3) , and Nurcan Ozakar-Ilday 1) CP is used in home-type bleaching in concentrations of 6.5-22%, whereas HP is used by dentists in office-type bleaching in concentrations of 25-35% (7). When CP combines with saliva during bleaching, it converts into HP and urea, and HP reacts to form oxygen and water (8).…”

Section: Monomer Release From Nanohybrid Composites After Bleachingmentioning

confidence: 99%

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Monomer release from nanohybrid composites after bleaching

et al. 2019

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The evaluation of the effect of bleaching on monomer release from two composite resins was performed by bleaching two nanohybrid composite resins Filtek Z550 and Tetric N-Ceram using two bleaching products Whiteness HP Maxx and Vivastyle. In total, 20 samples were made from each composite resin from which four groups were fabricated (two for each bleaching product). The samples were stored in a 75% ethanol solution, and the solutions were renewed after 1, 7, and 28 days. The monomer release was analyzed using high performance liquid chromatography. The data were analyzed using repeated measures analysis of variance and least significant difference multiple comparison test (α = 0.05). Monomers were found to be released from both composite resins. The amounts of monomer released were found to decrease over time (P < 0.05); however, the resins were not affected by bleaching, and the released monomers were well below toxic doses.

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Section: Discussionmentioning

confidence: 99%

Section: Monomer Release From Nanohybrid Composites After Bleachingmentioning

confidence: 99%

Monomer release from nanohybrid composites after bleaching

et al. 2019

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“…The whitening mechanism, as it is understood up to now, involves the release of reactive oxygen and its interaction with high molecular weight organic chromophore molecules breaking them into simpler structures with final optical properties that reduce the appearance of stain 1,9,21 . This was clearly observed in specimens of Group C. However, the lack of significant color change in the specimens from groups A and B reinforces the hypothesis that whitening of composites occurs by removal of extrinsic stain, not to intrinsic color change 9,22 .…”

Section: Discussionmentioning

confidence: 99%

Tooth whitening recovers the color of pre-stained composites

et al. 2017

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Aim: To assess the effect of home-whitening on aged and stained composite. Methods: Fifteen discshaped specimens (10 mm diameter x 2 mm thick) of Filtek Z350XT, shade A2E were fabricated, polished and embedded in wax, leaving exposed the top surface. The specimens were allocated to three groups (n=5): A -the specimens remained dry; B -conditioning in distilled water and; C -conditioning in distilled water and coffee. They were next subjected to whitening with 10% carbamide peroxide (Whiteness Perfect) for 4 h daily for 1, 2 and 4 weeks. Shade was measured with a spectrophotometer Easyshade and expressed based on the CIE L*a*b* system (ΔE*). Surface roughness was measured with a roughness meter (Ra-µm). Data were analyzed with two-way ANOVA and Tukey's test (α=0.05). Results: Conditioning, grouping and the interaction between both, influenced the ΔE* (p<0.0001), which exceeded the 3.3 threshold for visible color change after conditioning of Group C in black coffee. Whitening for 1 week significantly reduced ΔE* in this group. There were no significant changes in surface roughness. Conclusions: Home-whitening did not alter significantly the color of the nanocomposite, except when it was previously stained. One-week whitening was sufficient to recover color change to an acceptable level.

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“…Çalışmanın sonuçlarına göre, beyazlatma tekniğinden bağımsız olarak (ev tipi/ofis tipi) yeni yerleştirilmiş kompozitlere beyazlatma uygulanmamalıdır. 56 Beyazlatılmış restorasyonlardaki yüzey düzensizliklerine bağlı olarak beyazlatılmış kompozitler beyazlatılmamışlara kıyasla daha kolay lekelenmektedir. 57 Laboratuar çalışmalarından elde edilen bilgilere göre karbamid peroksid ile temasta olan dental amalgamlarda civa salınımının arttığı gösterilmiştir.…”

Section: Restoratif Materyaller üZerine Etkisiunclassified

Tooth discolorations and bleaching treatments

Özduman¹,

Çelik²

2017

Yeditepe J Dent

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Hastaların daha beyaz ve parlak doğal gülüşlere sahip olma isteği kaçınılmaz bir gerçektir. Daha beyaz dişlere sahip olmanın hastalar ve tüketiciler için önemi geçen yıllar içinde beyazlatma ajanları ve prosedürlerinin sayısında muazzam bir artışa neden olmuştur. Bu ajanlar diş macunları, jeller, bantlar gibi ev tipi ürünler olabildiği gibi profesyonel olarak uygulanan yüksek konsantrasyonlu ofis tipi beyazlatma ajanları da olabilir. Beyazlatma tedavisinin seçimi diş renkleşmesinin tipine, lokasyonuna ve yoğunluğuna göre değişir. Diş hekimini görevi; beyazlatma tedavisi arayışında olan hastaları bilgilendirmek, oral ve sistemik sağlık sınırları içinde en yüksek beyazlatmayı sağlayabilmektir. Diş renkleşmeleri genel olarak iç kaynaklı ve dış kaynaklı sınıflamasına ayrılabilir. Renkleşmenin nedenini bilmek diş hekimini beyazlatma tekniğini planlamasına ve sonuçları tahmin etmesine yardım eder. Böylece bu derlemenin amacı, tedavi edilebilir diş renkleşme nedenlerini değerlendirmek ve güncel tedavi seçenekleri için uygulanan metotların kısa bir tasvirini sağlamaktır. Beyazlatma tedavisinin oral dokulara ve restorasyonlara etkisi ve beyazlatma ajanları ve prosedürlerindeki güncel gelişmeler de ayrıca incelenmiştir.

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Investigation of different bleaching conditions on the amount of elutable substances from nano-hybrid composites

Cited by 27 publications

References 27 publications

Monomer release from nanohybrid composites after bleaching

Monomer release from nanohybrid composites after bleaching

Tooth whitening recovers the color of pre-stained composites

Tooth discolorations and bleaching treatments

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