European Journal of Dentistry, Table of Contents CC BY-NC-ND 4.0 · Eur J Dent 2014; 08(04): 487-492DOI: 10.4103/1305-7456.143630 Original Article Dental Investigation Society An in-vitro evaluation of mechanical and esthetic properties of orthodontic sealants Authors Author Affiliations Thyagaseely Sheela Premaraj 1 Department of Growth and Development, Orthodontic Section, University of Nebraska Medical Center College of Dentistry, Lincoln, NE, USA Nima Rohani 1 Department of Growth and Development, Orthodontic Section, University of Nebraska Medical Center College of Dentistry, Lincoln, NE, USA David Covey 2 Department of Adult Restorative Dentistry, UNMC College of Dentistry, Lincoln, NE, USA Sundaralingam Premaraj 1 Department of Growth and Development, Orthodontic Section, University of Nebraska Medical Center College of Dentistry, Lincoln, NE, USA Yi Hua 3 Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, NE, USA Hidehiko Watanabe 2 Department of Adult Restorative Dentistry, UNMC College of Dentistry, Lincoln, NE, USA Recommend Article Abstract PDF Download(opens in new window) ABSTRACT Objective: To evaluate mechanical and esthetic Properties of two commercially available orthodontic sealants: Opal®Seal (OS) and L.E.D. Pro Seal (PS). Materials and Methods: Discs of each sealant were prepared to test the following properties: Micro hardness, wear resistance and color stability. Samples were randomly selected after the wear test for SEM imaging to analyze surface morphology. Results: OS was significantly harder than PS (P < 0.001). PS was significantly more wear resistant than OS (P < 0.05). PS showed a greater ΔE*ab (increased staining) when placed in wine or coffee showing a significant difference (P < 0.05). SEM showed particle size, shape and distribution were different for PS and OS reflecting the pattern seen on wear surfaces. Conclusion: Both orthodontic sealants are beneficial for protecting enamel. However with better wear properties PS was superior in resisting mechanical stresses. OS was more color stable. Key words: Key words:Esthetics - micro hardness - orthodontic sealants - wear properties - white spot lesions PDF (1656 kb) References REFERENCES 1 Hadler-Olsen S, Sandvik K, El-Agroudi MA, Øgaard B. The incidence of caries and white spot lesions in orthodontically treated adolescents with a comprehensive caries prophylactic regimen: A prospective study. Eur J Orthod 2012; 34: 633-9 2 Mizrahi E. Enamel demineralization following orthodontic treatment. Am J Orthod 1982; 82: 62-7 3 Ogaard B. Prevalence of white spot lesions in 19-year-olds: A study on untreated and orthodontically treated persons 5 years after treatment. Am J Orthod Dentofacial Orthop 1989; 96: 423-7 4 Boersma JG, van der Veen MH, Lagerweij MD, Bokhout B, Prahl-Andersen B. Caries prevalence measured with QLF after treatment with fixed orthodontic appliances: Influencing factors. Caries Res 2005; 39: 41-7 5 Richter AE, Arruda AO, Peters MC, Sohn W. Incidence of caries lesions for patients treated with comprehensive orthodontics. J Dent Res 2009; 88: 2058 6 Lovrov S, Hertrich K, Hirschfelder U. Enamel demineralization during fixed orthodontic treatment-Incidence and correlation to various oral-hygiene parameters. J Orofac Orthop 2007; 68: 353-63 7 Gray D, McIntyre G. Does oral health promotion influence the oral hygiene and gingival health of patients undergoing fixed appliance orthodontic treatment?. A systematic literature review. J Orthod 2008; 35: 262-9 8 Al Mulla AH, Kharsa SA, Birkhed D. Modified fluoride toothpaste technique reduces caries in orthodontic patients: A longitudinal, randomized clinical trial. Am J Orthod Dentofacial Orthop 2010; 138: 285-91 9 Robertson MA, Kau CH, English JD, Lee RP, Powers J, Nguyen JT. MI Paste Plus to prevent demineralization in orthodontic patients: A prospective randomized controlled trial. Am J Orthod Dentofacial Orthop 2011; 140: 660-8 10 Behnan SM, Arruda AO, González-Cabezas C, Sohn W, Peters MC. In-vitro evaluation of various treatments to prevent demineralization next to orthodontic brackets. Am J Orthod Dentofacial Orthop 2010; 138: 712.e1-7 11 Hu W, Featherstone JD. Prevention of enamel demineralization: An in-vitro study using light-cured filled sealant. Am J Orthod Dentofacial Orthop 2005; 128: 592-600 12 Buren JL, Staley RN, Wefel J, Qian F. Inhibition of enamel demineralization by an enamel sealant, Pro Seal: An in-vitro study. Am J Orthod Dentofacial Orthop 2008; 133: S88-94 13 Mettenburg D, Rueggeberg FA. In-vitro toothbrush abrasion resistance of two enamel protectant sealants. J Dent Res 2014; 93: 1457 14 Gange RJ. LEDs and SEPs, a look at the current state of orthodontic bracket bonding. Available from: http://www.orthodonticproductsonline.com/2007/03/leds-and-seps-2007-03-03/ [Last accessed on 2014 Mar 01] 15 Hubbezoglu I, Bolayir G, Dogan OM, Dogan A, Ozer A, Bek B. Microhardness evaluation of resin composites polymerized by three different light sources. Dent Mater J 2007; 26: 845-53 16 Safeguard your patients with the orthodontic primer and sealant in one. Opal Seal. Available from: http://www.opalorthodontics.com/pdf/Opal_Seal_Sales_Sheet.pdf [Last accessed on 2014 Mar 01] 17 Koottathape N, Takahashi H, Iwasaki N, Kanehira M, Finger WJ. Two- and three-body wear of composite resins. Dent Mater 2012; 28: 1261-70 18 Kolker JL, SRA. Bergeron C, Cobb DS, Derehy GE, Geraldeli S. et al. Operative Dentistry Concepts. 2010-2011 ed.. The University of Iowa; 1981 19 Van Bebber L, Campbell PM, Honeyman AL, Spears R, Buschang PH. Does the amount of filler content in sealants used to prevent decalcification on smooth enamel surfaces really matter?. Angle Orthod 2011; 81: 134-40 20 Watanabe H, Khera SC, Vargas MA, Qian F. Fracture toughness comparison of six resin composites. Dent Mater 2008; 24: 418-25 21 Singh SV, Aggarwal P. Effect of tea, coffee and turmeric solutions on the colour of denture base acrylic resin: An in vitro study. J Indian Prosthodont Soc 2012; 12: 149-53 22 Watanabe H, Covey D. Esthetic restorative material shade changes due to photopolymerization. Gen Dent 2008; 56: 260-6
