Glass-ionomer dental restoratives

Culbertson, B. M.

doi:10.1016/s0079-6700(01)00006-5

Cited by 103 publications

(91 citation statements)

References 130 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ionenes, to this author's knowledge, have no commercial applications and consistent with this observation is the fact that the number of papers published on ionones is about 6% of that published on ionomers [2]. The last materials similar to ionomers that are not part of this review are polymers containing ionic groups used in dental cements, termed glass-ionomer cements [3]. Dental cement materials have higher ionic contents, often greater than 80%, (so, it would be more correct to call such materials glass-polyelectrolyte cements rather than glassionomer cements!)…”

Section: Introductionmentioning

confidence: 70%

Review and critical analysis of the morphology of random ionomers across many length scales

Grady

2008

Polymer Engineering & Sci

101

View full text Add to dashboard Cite

This review presents a description of what is known about ionomer morphology. All papers on ionomer morphology are not included in this review; but all relevant questions about ionomer morphology are posed and answered as completely as possible. The review is critical; that is, reasons are given for morphologies that are deemed to be more or less likely. The review is organized along three length scales: sub-nanometer, nanometer to 10 nm, and greater than 10 nm. Within each length scale, all three phases are considered: crystalline, amorphous, and ionic aggregate. The purity of the three phases, the arrangement of atoms in the three phases, the size and shape of the three phases, and their arrangements in space relative to each other are explored in this review. A model for the shape of aggregates in ionomers that have well-ordered internal environments is presented. This model proposes that aggregates are fundamentally planar, but will ''roll up'' into tubes or other related structures in order to reduce the number of atoms at aggregate edges. This model was developed primarily based on the varied morphologies ionomers have shown in electron micrographs, but is consistent with other indirect measurements of ionomer morphology.

show abstract

Section: Introductionmentioning

confidence: 70%

Review and critical analysis of the morphology of random ionomers across many length scales

Grady

2008

Polymer Engineering & Sci

101

View full text Add to dashboard Cite

show abstract

“…Apart from its ability to bond to bone, the main advantages of PAA are low toxicity coupled with high solubility in water which allows solutions of 50% by mass to be produced [2,3,40,41]. Some of the PAA factors proportionally affect the rate of the setting reaction of GPCs [Eq.…”

Section: +mentioning

confidence: 99%

“…Other additives including, but not restricted to, phosphoric [88], amino [89], maleic [90], itaconic [91] and oxalic acids [92] have been studied and discussed in other review papers [3,7,40]. Yet, they are not the focus of this review article.…”

Section: Effect Of Additives/chelating Agentsmentioning

confidence: 99%

“…CGPCs are acid-base cements typically formed by the reaction of an organic aqueous solution of polyalkenoic acid, mainly a copolymer of poly(acrylic acid) (PAA) (Figure 1) with an inorganic acid-degradable fluoro-alumino-silicate glass. The reaction between both components results in a composite cement material consisting of reacted and unreacted glass particles embedded in a polysalt matrix [2][3][4]. GPCs are used in dentistry due to a selection of clinical advantages as follows [2,[5][6][7][8][9]: (a) Single-step adhesion characteristics of both enamel and dentine.…”

Section: Introductionmentioning

confidence: 99%

“…[27]. The most commonly used polymeric materials for GPC formulations are PAA and copolymers of acrylic and itaconic acid [poly(AA-co-IA], or acrylic and maleic acid [poly(AA-co-MA)] with other monomers such as 3-butene 1,2,3-tricarboxylic acid ( Figure 2) also being employed from time to time [3]. Each repeat unit of PAA has an ionizable group, carboxylic acid (COOH).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The role of poly(acrylic acid) in conventional glass polyalkenoate cements

Alhalawani

Curran

Boyd

et al. 2015

Journal of Polymer Engineering

View full text Add to dashboard Cite

Abstract Glass polyalkenoate cements (GPCs) have been used in dentistry for over 40 years. These novel bioactive materials are the result of a reaction between a finely ground glass (base) and a polymer (acid), usually poly(acrylic acid) (PAA), in the presence of water. This article reviews the types of PAA used as reagents (including how they vary by molar mass, molecular weight, concentration, polydispersity and content) and the way that they control the properties of the conventional GPCs (CGPCs) formulated from them. The article also considers the effect of PAA on the clinical performance of CGPCs, including biocompatibility, rheological and mechanical properties, adhesion, ion release, acid erosion and clinical durability. The review has critically evaluated the literature and clarified the role that the polyacid component of CGPCs plays in setting and maturation. This review will lead to an improved understanding of the chemistry and properties of the PAA phase which will lead to further innovation in the glass-based cements field.

show abstract

Ionomers

Kim¹,

Luqman²,

Song³

2010

Encyclopedia of Polymer Science and Technology

View full text Add to dashboard Cite

Since the early 1950s, the introduction of ionic groups has been recognized as a tool that can change the polymer properties. Thus, ionomers, polymers that contain a small amount of ionic groups along the polymer backbone chains, have received considerable attention from industrial as well as academic arenas. It has been found that ionomers exhibit unique properties and morphology, such as two T g s, high melt viscosity, transport behavior, and SAXS “ionomer” peak. In this article, we set out with a introduction on ionomers, and then move on to multiplet/cluster concepts. Subsequently, the glass transition temperatures of ionomers have been discussed. The next section is devoted to a discussion of physical properties of various ionomers, that is, polyethylene‐based ionomers, polytetrafluoroethylene‐based ionomers, polystyrene‐based ionomers, block ionomers, telechelic ionomers, and star ionomers. In the following section, three different types of plasticization using polar, non‐polar, and amphiphilic plasticizers are discussed. Then, various ionic interactions as a tool for miscibility improvement are described. The last section deals with the applications of ionomers briefly.

show abstract

Glass-ionomer dental restoratives

Cited by 103 publications

References 130 publications

Review and critical analysis of the morphology of random ionomers across many length scales

Review and critical analysis of the morphology of random ionomers across many length scales

The role of poly(acrylic acid) in conventional glass polyalkenoate cements

Ionomers

Contact Info

Product

Resources

About