Influence of Dietary Solvents on the Strength of Nanofill, Microfill and Minifill Composites Singh Ayush Razdan1,*, Khan Raazia2, Rajkumar B3, Dixit K K4, Jethwani Gayathri S5, Mishra Alok6 1Reader, Department of Conservative Dentistry, Saraswati Dental College, Tiwariganj, Lucknow, U.P. 2P.G. Student, Department of Conservative Dentistry, Saraswati Dental College, Lucknow, U.P. 3Professor and Head, BBD Dental University, Tiwariganj, Lucknow, U.P. 4Professor, Department of Conservative Dentistry, Institute of Dental Sciences, Pilibhit Bypass Road, Near Suresh Sharma Nagar, Barielly, U.P. 5Professor, Conservative Dentistry and Endodontics. Triveni Nagar-II, Sitapur road, Lucknow, U.P. 6Professor, Melaka Manipal Medical College, Manipal *Corresponding author: Dr. Ayush Razdan Singh, Reader, Department of Conservative Dentistry, Saraswati Dental College, Tiwariganj, Lucknow, U.P., Mob.: 9793467975 Email id- dr_ayush_singh@yahoo.comdrayushsingh@gmail.com
Online published on 6 April, 2019. Abstract The search for an ideal restorative material to replace tooth tissue and the demand for products with adhesive and caries protective properties together with a simple procedure for application have led to the development of restorative materials that combine conventional glass Ionomers and light-cure composite resins. It has been demonstrated that composite resins as well as glass ionomers are susceptible to various modes of chemical degradation in vitro; as a result of which the mechanical properties of various composites have been tested after long term storage in solutions. As some polyacid modified composites (compomers) are now indicated for stress-bearing areas, such as posterior and Class IV restorations, the knowledge of how their strength properties are affected by food simulating liquids is important for predicting their clinical performance. The objective of this study was to investigate the effects of food-simulating liquids on the flexural strength of composite and polyacid-modified composite resins. It was seen that the detrimental effects of aqueous solutions on flexural strength appeared to be greater with polyacid modified composite resins than composite restoratives and the latter had significantly higher flexural strength after conditioning in aqueous solutions. Top Keywords Aqueous solutions, compomers, composite, conventional glass ionomers, flexural strength, food simulating liquids, light-cure composite resins, polyacid-modified composite resins. Top |