title: Effectiveness of resin-based materials against erosive and abrasive enamel wear.
abstract: OBJECTIVE
  The objective of this study was to test the effectiveness of resin-based materials against erosive enamel wear under erosive and abrasive challenges by orange juice and tooth brushing.
  
  
  METHODS
  Fifty enamel specimens from third molars were assigned to five groups: ICON resin infiltration with no etching (ICON-NE), ICON resin infiltration with 15 % HCl etching (ICON-AE), Seal & Protect sealant (S&P), Tetric EvoFlow (TEF), and control. Erosive lesions were first created on enamel, then treated with resin-based materials. Erosive and abrasive challenges by orange juice and tooth brushing were repeated after treatments. Erosive wear of the treated areas was measured with 3D scanning microscopy, and data were analyzed using ANOVA and paired t tests.
  
  
  RESULTS
  Treatments with ICON, S&P, and TEF created a protective material coating of 4.5 ± 1.9 μm, 44.3 ± 8.1 μm, and 84.6 ± 15.7 μm in thickness on the lesion surfaces, respectively. After 15 cycles of erosive and abrasive challenges, enamel or material losses were 21.9 ± 2.3 μm for control, 24.5 ± 4.0 μm for ICON-NE, 24.6 ± 7.4 μm for ICON-AE, 11.2 ± 4.1 μm for S&P, and 3.9 ± 1.9 μm for TEF, respectively. The protective coatings were completely lost in the ICON infiltration groups but remained intact in both the S&P and TEF groups after erosive and abrasive challenges.
  
  
  CONCLUSIONS
  In contrast to a resin sealant and a flowable composite, ICON infiltration resin was not effective in protecting enamel surfaces from erosive and abrasive wear.
  
  
  CONCLUSIONS
  Sealant and flowable composite resin may create protective coatings on eroded enamel surfaces and prevent further tissue loss.
authors.affiliation: University of Rochester Eastman Institute for Oral Health, 625 Elmwood Avenue, Rochester, 14625, NY, USA.|Department of General Dentistry, Peking University School of Stomatology, Beijing, China.
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Zhao
authors.affiliation: Department of General Dentistry, Peking University School of Stomatology, Beijing, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Pan
authors.affiliation: University of Rochester Eastman Institute for Oral Health, 625 Elmwood Avenue, Rochester, 14625, NY, USA.
authors.forename: Songmei
authors.initials: S
authors.lastname: Zhang
authors.affiliation: University of Rochester Eastman Institute for Oral Health, 625 Elmwood Avenue, Rochester, 14625, NY, USA.
authors.forename: Hans S
authors.initials: HS
authors.lastname: Malmstrom
authors.affiliation: University of Rochester Eastman Institute for Oral Health, 625 Elmwood Avenue, Rochester, 14625, NY, USA. yanfang_ren@urmc.rochester.edu.
authors.forename: Yan-Fang
authors.initials: YF
authors.lastname: Ren
mesh_terms: D000134:Acid Etching, Dental; D032084:Citrus sinensis; D003188:Composite Resins / Q000737:chemistry*; D003743:Dental Enamel / Q000187:drug effects*; D000067030:Fruit and Vegetable Juices; D006801:Humans; D066298:In Vitro Techniques; D008964:Molar, Third; D019279:Resin Cements / Q000737:chemistry*; D012117:Resins, Synthetic / Q000737:chemistry*; D014072:Tooth Abrasion / Q000517:prevention & control*; D057085:Tooth Wear / Q000517:prevention & control*; D014099:Toothbrushing
chemical_list: D003188:Composite Resins; D019279:Resin Cements; D012117:Resins, Synthetic; C442646:Seal and Protect resin cement; C578177:icon infiltrant; C452226:tetric flow composite resin
keywords: Composite resin; Dental erosion; Infiltration resin; Resin sealant; Tooth wear