Wear and superficial roughness of glass ionomer cements used as sealants, after simulated toothbrushing.

The purpose of this study was to evaluate, in vitro, the properties (wear and roughness) of glass ionomer cements that could influence their indication as pit and fissure sealants. The utilized materials were Fuji Plus, Ketac-Molar and Vitremer (in two different proportions: 1:1 and :1). The resin-based sealant Delton was used as control. By means of an electronic balance (precision of 10-4 g), wear was measured in function of weight loss after simulated toothbrushing. Superficial roughness was determined by means of a surface roughness-measuring apparatus. The results revealed that diluted Vitremer and Fuji Plus were less resistant to toothbrushing abrasion and had the greatest increase in superficial roughness. Although in clinical situations luting or diluted ionomer cements are often utilized as alternatives to resin-based sealants, the resultsof this study revealed that the properties of those cements are worse than those of restorative ionomers, whichpresented results similar to those of the evaluated resin sealant.

[1]  G. Wang,et al.  Mechanical properties and microstructures of glass-ionomer cements. , 2000, Dental materials : official publication of the Academy of Dental Materials.

[2]  L. F. Pegoraro,et al.  Shear bond strength of porcelain with two nonprecious alloys , 2000 .

[3]  D. Smith,et al.  Development of glass-ionomer cement systems. , 1998, Biomaterials.

[4]  Ana Lídia Ciamponi Martins.  Cimentos de ionomero de vidro , 1998 .

[5]  T. Watson,et al.  In vivo changes in roughness of resin-modified glass ionomer materials. , 1997, Dental Materials.

[6]  P. Lambrechts,et al.  Comparative Physico-mechanical Characterization of New Hybrid Restorative Materials with Conventional Glass-ionomer and Resin Composite Restorative Materials , 1997, Journal of dental research.

[7]  J. McCabe,et al.  In vitro toothbrush-dentifrice abrasion of resin-modified glass ionomers. , 1997, Dental materials : official publication of the Academy of Dental Materials.

[8]  M. Raadal,et al.  Fissure sealing with a light-cured resin-reinforced glass-ionomer cement (Vitrebond) compared with a resin sealant. , 2009, International journal of paediatric dentistry.

[9]  R. Simonsen.  Glass ionomer as fissure sealant--a critical review. , 1996, Journal of public health dentistry.

[10]  T. Stolarski,et al.  Wear: mechanisms, manifestations and measurement. Report of a workshop. , 1996, Journal of dentistry.

[11]  F. García-Godoy,et al.  Clinical evaluation of the retention and wear of a light-cured pit and fissure glass ionomer sealant. , 1995, The Journal of clinical pediatric dentistry.

[12]  H. Forss,et al.  Comparison of glass-ionomer and resin-based fissure sealants: a 2-year clinical trial. , 1994, Community dentistry and oral epidemiology.

[13]  J. Kaim,et al.  Adhesive primers in amalgam restorations: A clinical-study , 1994 .

[14]  M. Dodds.  Dilemmas in caries diagnosis--applications to current practice and need for research. , 1993, Journal of dental education.

[15]  A. D. Wilson.  Resin-modified glass-ionomer cements. , 1990, The International journal of prosthodontics.

[16]  I. Mjör,et al.  Mutans Streptococci in Plaque from Margins of Amalgam, Composite, and Glass-ionomer Restorations , 1990, Journal of dental research.

[17]  J. Ferracane,et al.  Properties of a glass-ionomer/resin-composite hybrid material. , 1989, Dental materials : official publication of the Academy of Dental Materials.

[18]  E. Mckenna,et al.  Glass ionomer cement fissure sealants applied by operative dental auxiliaries--retention rate after one year. , 1987, Australian dental journal.

[19]  J. Stamm.  Is there a need for dental sealants? Epidemiological indications in the 1980s. , 1984, Journal of dental education.

[20]  A. Gwinnett.  Scientific rationale for sealant use and technical aspects of application. , 1984, Journal of dental education.

[21]  A. Gwinnett,et al.  Micromorphology of the fitting surface of failed sealants. , 1982, Pediatric dentistry.

[22]  J. Heath,et al.  Abrasion of restorative materials by toothaste. , 1976, Journal of oral rehabilitation.

[23]  J. Mclean,et al.  Fissure sealing and filling with an adhesive glass-ionomer cement , 1974, British Dental Journal.