American Journal of Orthodontics and Dentofacial Orthopedics
Some “sealants” seal—A scanning electron microscopy (SEM) investigation
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Cited by (22)
Effect of light-curable fluoride varnish on enamel demineralization adjacent to orthodontic brackets: An in-vivo study
2015, American Journal of Orthodontics and Dentofacial OrthopedicsCitation Excerpt :The use of chemically cured and light-cured sealants has also been advocated to prevent enamel demineralization around orthodontic brackets. The difficulty with chemically cured sealants is that they do not effectively and smoothly seal to the enamel surface because of oxygen inhibition of polymerization.18-20 Light-cured sealants have had some success in in-vitro studies, but in-vivo studies have demonstrated that the light-cured unfilled resin does not provide more protection than chemically cured sealants.10
Effects of a filled fluoride-releasing enamel sealant versus fluoride varnish on the prevention of enamel demineralization under simulated oral conditions
2013, Journal of the World Federation of OrthodontistsCitation Excerpt :Placement of a resin sealant on the enamel surface before orthodontic bracket bonding has been suggested as a means of providing sustained and prolonged sealing of the enamel surface, with subsequent protection of the enamel surface against demineralization [16–18]. The benefit of using sealants to resist enamel demineralization is limited by incomplete polymerization of sealants due to oxygen inhibition of polymerization [19–21] and by reduced abrasion resistance in unfilled sealants [22]. A newly developed highly filled, fluoride-releasing, light-cured enamel sealant (Pro-Seal) offers 100% surface polymerization with no surface oxygen–inhibited layer and is proposed to provide adequate mechanical resistance [23].
A Historical Overview of the Development of the Acid-Etch Bonding System in Orthodontics
2010, Seminars in OrthodonticsCitation Excerpt :Scanning electron microscopy (SEM) images of the sealed enamel surfaces showed ample resin tags protruding into the etched enamel surface (Fig 7).47 An interesting phenomenon was found by Joseph et al (1994).48 The sealed surfaces in this latter study were treated with Transbond light-cured sealant (3 M Unitek, Monrovia, CA) and were compared with surfaces treated with an auto-polymerizing sealant.
Effects of sealant and self-etching primer on enamel decalcification. Part I: An in-vitro study
2009, American Journal of Orthodontics and Dentofacial OrthopedicsCitation Excerpt :They speculated that it might be caused by the removal of the unpolymerized oxygen-inhibited layer with mouth rinsing and normal function.5 Joseph et al18 found that, for light-cured sealants, although the outer oxygen-inhibited layer might be washed off, the cured layers underneath still protected against demineralization. In the sealant group, the lesions occurred only when there was a break in the sealant layer's integrity.
Effects of oxygen inhibition in indirect bonding with a hydrophilic adhesive
2009, American Journal of Orthodontics and Dentofacial OrthopedicsEffect of light-cured filled sealant on shear bond strength of metal and ceramic brackets bonded with a resin-modified glass ionomer cement
2009, American Journal of Orthodontics and Dentofacial Orthopedics
- a
Registrar, Head of Orthodontic Department
- b
Researcher, Oral and Dental Research Institute, University of Stellenbosch.