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Treatment Planning
Published in M S Duggal, M E J Curzon, S A Fayle, K J Toumba, A J Robertson, Restorative Techniques in Paediatric Dentistry, 2021
M S Duggal, M E J Curzon, S A Fayle, K J Toumba, A J Robertson
Both composite resins and glass ionomer cements are technique-sensitive, and ideally need to be placed under rubber dam. Therefore these types of restorations are recommended for small single surfaces only. Glass ionomer cements can be used as semi-permanent restorations in primary molars when the teeth are close to exfoliation. Alternatively, glass ionomer cements may be used as a temporary measure for a few months until a permanent restoration can be placed.
Interactions between Oral Bacteria and Antibacterial Polymer-Based Restorative Materials
Published in Mary Anne S. Melo, Designing Bioactive Polymeric Materials for Restorative Dentistry, 2020
Fernando L. Esteban Florez, Sharukh S. Khajotia
Resin-modified glass-ionomer cements contain the traditional ion-leachable glass powder associated with water-soluble monomers (2-hydroxyethyl methacrylate, HEMA) and a polymeric acid, that combined with a light-sensitive activator-initiator system, results in traditional free-radical addition polymerization reactions. Even though these materials were initially designed to be used as liners and bases, other applications in restorative dentistry (such as core build-ups) have also been reported. Even though several reports have demonstrated the antibacterial and bacteriostatic effects of fluoride, it has been recently stated that fluoride-releasing restorative materials cannot sustain the minimum fluoride concentration (>10 ppm) to reduce the viability of cells within biofilms.[144]
Stock control
Published in Raj Rattan, Kevin Lewis, Raj Rattan, Making Sense of Dental Practice Management, 2017
The powder of glass ionomer cements needs protection against humidity in the air. Bottles of powder are usually labelled with clear instructions to close the lid tightly and also contain pellets of moisture-absorbent material to reduce contamination of the powder itself. Despite this, it is a common finding in practice that the final 10% of powder in the bottle lacks the performance and mixing characteristics of the powder used when the bottle is first opened. This is usually due to contamination.
A comparative evaluation of microleakage and dentin shear bond strength of three restorative materials
Published in Biomaterial Investigations in Dentistry, 2022
Glass ionomer cement (GIC) has been successfully used as dental restorative material following its invention by Wilson and Kent in the early 1970s [5]. The unique properties of GIC's are their adhesion to moist tooth surfaces, anti-cariogenic character, lack of exothermic polymerization, excellent adhesion to dentin, and satisfactory biocompatibility [6]. One of the major drawbacks of GICs is their weak mechanical properties like brittleness, low strength, and toughness [5,6]. Because of their poor mechanical strength, GICs were mainly used to restore anterior teeth and in areas with minimal load [6].
Assessment of genotoxicity of glass ionomer cements: a systematic review
Published in Critical Reviews in Toxicology, 2022
Ingra Tais Malacarne, Wilton Mitsunari Takeshita, Daniel Vitor de Souza, Marcia Regina Nagaoka, Odair Aguiar Jr., Ana Claudia Muniz Renno, Daniel Araki Ribeiro
In the last decades, conventional and modified glass ionomer cements have been frequently used in dentistry because they show advantages compared to other dental materials, such as chemical adhesion and fluoride release. However, information on the genotoxic potential of these materials is scarce in the literature (Ribeiro et al. 2006; Bakopoulou et al. 2009). Since the glass ionomer cements has some metals in its composition that stay in contact with the oral tissues for long periods, they can cause a biological risk (Ribeiro et al. 2006a, b; Gavić et al. 2019).
Fluoride exchange by glass-ionomer dental cements and its clinical effects: a review
Published in Biomaterial Investigations in Dentistry, 2023
John W. Nicholson, Sharanbir K. Sidhu, Beata Czarnecka
Glass-ionomer cements, formally called glass polyalkenoate cements, both conventional and resin-modified, have a variety of uses in dentistry [1,2]. These include dental restoratives, fissure sealants, luting cements [3] and adhesives for orthodontic brackets [4].