ISSN 2756-3421
African Journal of Dentistry ISSN 3216-0216 Vol. 7 (1), pp. 001-004, January, 2019. © International Scholars Journals
Full Length Research Paper
In vitro study of staining agents effects on optical properties of esthetic restorative materials
Welingtom Dinelli1*, Renata Vidal Fernandes2, Marcelo Ferrarezi de Andrade3, Norberto Catanzaro Guimaraes4 and Flavia Magnani Bevilacqua5
1School of Dentistry, Sao Paulo State University at Araraquara (UNESP), Araraquara, SP, Brazil.
2Resident in of Restorative Dentistry, Sao Paulo State University at Araraquara (UNESP), Araraquara, SP, Brazil.
3Department of Restorative Dentistry, Sao Paulo State University at Araraquara (UNESP), Araraquara, SP, Brazil.
4Department of Dental Materials and Prosthodontics, Sao Paulo State University at Araraquara (UNESP), Araraquara, SP, Brazil.
5University Center at Araraquara (UNIARA), Araraquara, SP, Brazil.
Accepted 03 November, 2018
Abstract
The authors have studied the effect of four staining agents on the optical properties of esthetic restorative materials through translucency tests. Two commercial brands of composite resins were used: Point 4 (Kerr) and Charisma (Heraeus-Kulzer). The liquids tested were: wine, cola, chlorhexidine solution and nicotine solution. The translucency was measured at different periods of time: P0 – before immersion (baseline), P1 - 1 h after immersion, P2 - 2 h after immersion and successively, P3 – 24 h after immersion up to a period of 7 weeks. ANOVA statistical analysis was applied to the data (p < 0.05). The results lead to the following conclusions: (1) Composite resins submitted to the tested immersion mediums were stained, (2) the lower percentage of translucency was observed for nicotine containing solution, (3) The percentage of translucency decreased with the period of immersion.
Key words: Composite resin, dental materials, translucence.