An in-vitro evaluation of mechanical and esthetic properties of orthodontic sealants

Thyagaseely Sheela Premaraj, Nima Rohani, David Covey, Sundaralingam Premaraj, Yi Hua, Hidehiko Watanabe

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)487-492
Number of pages6
JournalEuropean Journal of Dentistry
Issue number4
StatePublished - 2014


  • Esthetics
  • Micro hardness
  • Orthodontic sealants
  • Wear properties
  • White spot lesions

ASJC Scopus subject areas

  • Dentistry(all)


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