Effect of Different Acidic Beverages on Microhardness of Nanohybrid Composite, Giomer, and Microhybrid Composite
SK Somayaji, Arul Amalan
Citation Information :
Somayaji S, Amalan A. Effect of Different Acidic Beverages on Microhardness of Nanohybrid Composite, Giomer, and Microhybrid Composite. World J Dent 2016; 7 (3):126-128.
Degradation in the oral cavity is a complex phenomenon, i.e., related to disintegration and dissolution of restorative materials in the oral cavity. Consumption of acidic food, fruit juices, and soft drinks can result in decrease in microhardness and bad esthetic appearance.
Materials and methods
Twenty-four disk-shaped specimens (10 mm in diameter and 2 mm thickness) were made from each nanohybrid composite, giomer, and microhybrid composite. The specimens were dipped in Appy fizz, Nimbooz, and Thumbs Up for 50 seconds and washed with saline. This cycle was continued for six times each day. Such hardness test was carried out in regular intervals, that is, 7, 14, and 21 days.
Results
There was reduction in hardness after 7 and 14 days but no significant difference (p > 0.05). There was significant difference after 21 days of experimental models for giomer, ceramic, and spectra (p < 0.05).
Conclusion
The microhardness of materials was reduced after 7 and 14 days, but significant difference was seen after 21 days.
How to cite this article
Somayaji SK, Amalan A, Ginjupalli K. Effect of Different Acidic Beverages on Microhardness of Nanohybrid Composite, Giomer, and Microhybrid Composite. World J Dent 2016;7(3):126-128.
Effect of soft drinks and fresh fruit juice on surface roughness of commonly used restorative materials. Int J Clin Pediatr Dent 2015 Apr;8(1):1-5.
Characterization of nano filled compared to universal and microfilled composite. Dent Mater 2007 Jan;23(1):51-59.
A clinical evaluation of a self etching primer and giomer restorative material: results at eight years. J Am Dent Assoc 2007 May;138(5):621-627.
Two year clinical performance of occlusal and cervical giomer restorations. Oper Dent 2005 May-Jun;30(3):282-289.
Sports drinks and dental erosion. Am J Dent 2005 Apr;18(2):101-104.
Water absorption characteristics of dental composites incorporating hydroxyapatite filler. Biomaterials 2002 Apr;23(8):1897-1904.
The effects of soft drinks on etched and sealed enamel. Angle Orthod 1996 Dec;66(6):449-456.
Composite degradation in vivo. Dent Mater 1986 Oct;2(5):225-227.
Effect of acidic food and drinks on surface hardness of enamel, dentin, and tooth-coloured filling materials. J Dent 2006 Mar; 34(3):214-220.
Subsurface degradation of resinbased composites. Dent Mater 2007 Aug;23(8):944-951.
Evaluation of Vickers hardness and depth of cure of six composite resins photo-activated with different polymerization modes. J Conserv Dent 2012 Jul;15(3):237-241.
Surface hardness evaluation of different composite resin materials: influence of sports and energy drinks immersion after a short-term period. J Appl Oral Sci 2013 Mar-Apr;21(2):124-131.
Changes in properties of polyacid-modified composite resins (compomers) following storage in acidic solutions. J Oral Rehabil 2003 Jun;30(6):601-607.
Effect of food-simulating liquids on surface characteristics of composite and polyacid-modified composite restoratives. Oper Dent 2000 May-Jun;25(3):170-176.
Water absorption and diffusion characteristics of nanohydroxyapatite (nHA) and poly(hydroxybutyrateco-hydroxyvalerate-) based composite tissue engineering scaffolds and nonporous thin films. J Nanomater 2013;2013:479109.
Surface hardness of different restorative materials after longterm immersion in sports and energy drinks. Dent Mater J 2012;31(5):729-736.
