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Titolo:
Porosity of resin cements and resin-modified glass-ionomers
Autore:
Miguel, A; de la Macorra, JC; Nevado, S; Gomez, J;
Indirizzi:
Univ Complutense Madrid, Fac Odontol, Dept Operat Dent, E-28040 Madrid, Spain Univ Complutense Madrid Madrid Spain E-28040 Dent, E-28040 Madrid, Spain
Titolo Testata:
AMERICAN JOURNAL OF DENTISTRY
fascicolo: 1, volume: 14, anno: 2001,
pagine: 17 - 21
SICI:
0894-8275(200102)14:1<17:PORCAR>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
COMPOSITE RESIN; POLYMERIZATION; CONTRACTION; STRESSES; INLAYS; LIGHT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: de la Macorra, JC Univ Complutense Madrid, Fac Odontol, Dept Operat Dent, E-28040 Madrid, Spain Univ Complutense Madrid Madrid Spain E-28040 id, Spain
Citazione:
A. Miguel et al., "Porosity of resin cements and resin-modified glass-ionomers", AM J DENT, 14(1), 2001, pp. 17-21

Abstract

Purpose: To quantify the internal free surface in various resin cements and glass-ionomer-based materials. Materials and Methods: Materials tested were Nexus fluid (NXF) and viscous (NXV), Vitremer (VTM), Fuji II LC (FII), Vitremer Luting Cement (VLC), Dyract (DYR) and Compoglass (COM). Samples (n=5) were made of each material between two microscopic glass slides under same weight. With a transmitted light microscopy, four zones of each sample were evaluated, finding the number of porosities per mm(2) (NP), the averageradius of porosities (RP), the ratio of total area of surface porosities (mu (2)) to area (mm2) of specimen surface (TA) and the ratio of total volume of porosities (mu (3)) to area (mm2) of material surface (VP). Results: Median test was used. NP: NXV, NXF and DYR had smaller NP than VTM and FII and (likely) than VLC (P> 0.0000001). RP was smaller for DYR than for VLC and (likely) than for NXV (P= 0.00019). TA: NXV, NXF and DYR had smaller TA than VTM, FII and VLC (P< 0.0000001). VP: NXV and DYR had smaller VP than FII and (likely) than VTM and VLC.

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Documento generato il 25/06/18 alle ore 17:11:57