Penetration of etching agents and its influence on sealer penetration into fissures in vitro

Dental Materials : Official Publication of the Academy of Dental Materials
P BottenbergF Lampert

Abstract

This study was designed to assess: 1) the ability of several commercially available and laboratory-made acid etchants to penetrate occlusal fissures when used for pit and fissure sealing, and 2) the influence of adding a surfactant to the etchant on penetration of the sealer. Viscosity, surface tension and contact angle to enamel of the etchants were determined for each treatment, and these properties were related to the etchant's ability to penetrate fissures. Penetration was assessed in an acrylic fissure model having a deep-narrow fissure using a microscope and a chronometer. Penetration depth was expressed as percentage of total fissure depth and was measured in intervals up to 90 s. Commercially available etching agents with different viscosities and two solutions of phosphoric acid (37%), one with and one without a surfactant, were tested. The etch pattern obtained on the fissure wall enamel of extracted teeth with some of these products was evaluated using scanning electron microscopy. Eventually, the penetration depths of a composite sealer in fissures treated with a conventional etchant were compared to those after application of a surfactant-containing etchant on sections of extracted teeth. None of the commercially a...Continue Reading

References

May 1, 1992·Dental Materials : Official Publication of the Academy of Dental Materials·K HottaN Nakabayashi
Jul 1, 1991·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·W N Wang, T C Lu
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Apr 1, 1983·Scandinavian Journal of Dental Research·M Juhl

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Citations

Apr 28, 2001·Journal of Esthetic Dentistry·B T RosaA V Ritter
Feb 13, 2002·Australian Dental Journal·M F BurrowO F Makinson
Sep 1, 2005·International Journal of Paediatric Dentistry·J PerdigãoM Lopes
Sep 1, 2005·Journal of Applied Oral Science : Revista FOB·Marina de Lourdes Calvo FracassoRuy César Camargo Abdo
Jan 1, 2013·The Journal of Contemporary Dental Practice·Nitin SinghG Ajay Kumar
Sep 1, 2009·International Journal of Clinical Pediatric Dentistry·Usha Mohan Das, Suma G

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