Effects of polishing techniques on the staining of two nano-tooth coloured materials

Surface polishing affect the staining of nano-tooth coloured materials. Here we studied the effect of tea and coffee staining on polished nano-composite resin and nano-ormocers. Eighty-four discs (5 × 2 mm) of Filtek Z350 and Ceram X were fabricated using acrylic molds and polished with either: (1)...

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Bibliographic Details
Main Authors: Teo, Kui Fei (Author), Zuryati Ab-Ghani (Author), Zaid Hameed Mohammed Ali (Author)
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia, 2018-04.
Online Access:Get fulltext
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042 |a dc 
100 1 0 |a Teo, Kui Fei  |e author 
700 1 0 |a Zuryati Ab-Ghani,   |e author 
700 1 0 |a Zaid Hameed Mohammed Ali,   |e author 
245 0 0 |a Effects of polishing techniques on the staining of two nano-tooth coloured materials 
260 |b Penerbit Universiti Kebangsaan Malaysia,   |c 2018-04. 
856 |z Get fulltext  |u http://journalarticle.ukm.my/12064/1/UKM%20SAINSMalaysiana%2047%2804%29Apr%202018%2017.pdf 
520 |a Surface polishing affect the staining of nano-tooth coloured materials. Here we studied the effect of tea and coffee staining on polished nano-composite resin and nano-ormocers. Eighty-four discs (5 × 2 mm) of Filtek Z350 and Ceram X were fabricated using acrylic molds and polished with either: (1) Sof-lex (2) Enhance/Pogo (3) control (no polishing-Mylar). After polishing, the tests materials were immersed in either tea or coffee (n=7), for 48, 96 and 168 h at 37°C. The colour difference (ΔE) values were assessed with a spectrophotometer (Cecil CE 2021 UV/VIS), the data were analysed using Kruskal-Wallis Test. The results showed that polishing significantly affected the ΔE values of both materials (p<0.05). In all groups, Ceram X showed less staining than Filtek Z350. Both Filtek Z350 and Ceram X also reacted differently in coffee and tea. Significant ΔE values for Filtek Z350 obtained with different polishing techniques exposed to coffee in ascending order: Sof-lex < Enhance/Pogo < Mylar strip. For Ceram X, significant ΔE values obtained in exposure to tea in ascending order: Pogo < Mylar < Sof-lex. Mylar caused more staining in Filtek Z350 whilst Sof-Lex caused the least staining. However, in Ceram X, Enhance/Pogo caused the least staining. In conclusion, Ceram X is more colour stable than Filtek Z350. It may be suggested to always use the polishing system produced by the same company that produces the restorative material for better staining resistant. 
546 |a en