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Titolo:
Fissure sealing: Optimization of sealant penetration and sealing properties
Autore:
Kersten, S; Lutz, F; Schupbach, P;
Indirizzi:
Univ Zurich, Dept Prevent Dent Periodontol & Cariol, CH-8028 Zurich, Switzerland Univ Zurich Zurich Switzerland CH-8028 riol, CH-8028 Zurich, Switzerland Univ Zurich, Inst Oral Microbiol & Immunol, CH-8006 Zurich, Switzerland Univ Zurich Zurich Switzerland CH-8006 unol, CH-8006 Zurich, Switzerland
Titolo Testata:
AMERICAN JOURNAL OF DENTISTRY
fascicolo: 3, volume: 14, anno: 2001,
pagine: 127 - 131
SICI:
0894-8275(200106)14:3<127:FSOOSP>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
GLASS-IONOMER; CARIES; ENAMEL; PIT; MORPHOLOGY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Kersten, S Univ Zurich, Dept Prevent Dent Periodontol & Cariol, Plattenstr11,POB 163, CH-8028 Zurich, Switzerland Univ Zurich Plattenstr 11,POB 163 Zurich Switzerland CH-8028 d
Citazione:
S. Kersten et al., "Fissure sealing: Optimization of sealant penetration and sealing properties", AM J DENT, 14(3), 2001, pp. 127-131

Abstract

Purpose: This in vitro study determined the penetration depth of a fissuresealant into an empty fissure system and into a conditioned enamel surface, using different sealing procedures. Materials and Methods: 48 extracted, non-carious human molars were sealed with the unfilled sealant (Heliobond) using the enamel adhesive technique (35% phosphoric acid gel, 120 s etchingtime, bond application, light-curing for 60 s). The following factors weretested in comparison to the control group (1): influence of a precuring time lapse of 20 s after sealant application (2); ultrasound application witha plastic tip during the etching procedure (3); a wetting agent in an acidvehicle (4); enamel drying with acetone after the etching procedure (5); and finally, the combination of ultrasound during etching; a drying procedure with acetone; and a 20 s precuring time lapse (all applied to the same sample). The sealed teeth were sectioned and evaluated by conventional light microscopy to determine the penetration depth into the fissure, and by confocal laser microscopy to investigate the quality of the adhesion zone. Results: Strict adherence to a specified penetration time, an intensified etching procedure with ultrasound, and the use of a drying procedure with acetone each showed a positive effect on the fissure penetration depth of the sealant and on the adhesion zone. The combination of these measures improved significantly the quality of the fissure sealing. Penetration depth increased to 92% of the fissure depth. From 95-100% of the total length of the analyzed adhesion zone shows excellent tags of sealant in the conditioned enamel surface.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/06/18 alle ore 17:06:34