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Original Research

Open Access

Caries-Preventive Effect of Fissure Sealant Containing Surface Reaction-Type Pre-reacted Glass Ionomer Filler and Bonded by Self-etching Primer

  • Shimazu K1,*,
  • Ogata K1
  • Karibe H1

1Department of Pediatric Dentistry, School of Life Dentistry at Tokyo, Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan.

DOI: 10.17796/jcpd.36.4.n444r730r773un53 Vol.36,Issue 4,July 2012 pp.343-347

Published: 01 July 2012

*Corresponding Author(s): Shimazu K E-mail: kisaki-s@tky.ndu.ac.jp

Abstract

We aimed to evaluate the caries-preventive effect of a fissure sealant containing surface reactiontype pre-reacted glass ionomer (S-PRG) filler and bonded by self-etching primer versus those of 2 conventional resin-based sealants bonded by acid etching in terms of its impact on enamel demineralization and remineralization, enamel bond strength, and integrity of debonded enamel surfaces. Materials and method: Demineralization, remineralization, and bond strength on untreated enamel and enamel subsurface lesions of bovine incisors were assessed among the sealants by polarizing microscopy and microradiography; debonded enamel surfaces were examined by scanning electron microscopy. Results: The conventional resin-based sealants bonded by acid etching caused surface defects on the enamel subsurface lesions and significantly increased the lesion depth (p = 0.014), indicative of enamel demineralization. However, the SPRG filler-containing sealant bonded by self-etching primer maintained the enamel surface integrity and inhibited enamel demineralization. No difference in bond strength on both untreated enamel and enamel subsurface lesions was noted among the sealants. Conclusions: An S-PRG filler-containing fissure sealant bonded by self-etching primer can prevent enamel demineralization, microleakage, and gaps without the tags created by acid etching regardless of the enamel condition. Such sealants are suitable for protecting the pits and fissures of immature permanent teeth.

Keywords

fissure sealant, surface reaction-type pre-reacted glass ionomer filler, demineralization, remineralization

Cite and Share

Shimazu K,Ogata K,Karibe H. Caries-Preventive Effect of Fissure Sealant Containing Surface Reaction-Type Pre-reacted Glass Ionomer Filler and Bonded by Self-etching Primer. Journal of Clinical Pediatric Dentistry. 2012. 36(4);343-347.

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