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

Teo, Kui Fei and Zuryati Ab-Ghani, and Zaid Hameed Mohammed Ali, (2018) Effects of polishing techniques on the staining of two nano-tooth coloured materials. Sains Malaysiana, 47 (4). pp. 781-787. ISSN 0126-6039


Official URL: http://www.ukm.my/jsm/malay_journals/jilid47bil4_2...


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.

Item Type:Article
Keywords:Nano-tooth coloured dental materials; Polishing techniques; Staining
Journal:Sains Malaysiana
ID Code:12064
Deposited By: ms aida -
Deposited On:13 Sep 2018 03:36
Last Modified:16 Sep 2018 23:30

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