Fluoride release from aesthetic dental materials

Abstract

The objective of the study was to compare the amounts of fluoride released by two glass-ionomer cements, a resin-modified glass-ionomer cement, a compomer and a fluoride-containing composite into deionized water and artificial saliva. Disc samples of each of the materials were fabricated and placed in either water or artificial saliva. Fluoride analysis of the media was performed periodically over 64 days. The data were analysed to show the rate of fluoride release per cm2 per hour for each material. The results showed that the fluoride release rate for all the materials in both solutions decreased dramatically after 24 h. The release rate in artificial saliva was significantly less than in water (P < 0.001). The resin-modified glass-ionomer cement consistently displayed the highest fluoride release rate per hour into both media.

Fluoride release and recharge abilities of contemporary fluoride-containing restorative materials and dental adhesives

“…Moreover, unlike GICs and RMGICs, compomers produced no initial "burst" of fluoride 14,26) . Their levels of fluoride release remained low and relatively constant over time 10,12) . In the present study, the results obtained with Dyract Extra agreed with these findings.…”

“…These fluoride-releasing restorative materials act as a fluoride reservoir to maintain an increased level of fluoride around restorations to prevent or inhibit secondary caries formation. As for the recharging ability of a restorative material, it depends on both intrinsic and environmental factors: chemical composition of the material and the frequency and intensity of exposure to fluoride 10,11) . Increased patient demand for esthetic restorations leads to an increased use of esthetic restorative materials.…”

Fluoride release and recharge characteristics of denture base resins containing surface pre-reacted glass-ionomer filler

“…Studies into the anticariogenic effects of fluoridereleasing restorative materials have shown that fluoride is released from glass-ionomer cements [14][15][16][17][18][19][20] , resin modified glass-ionomer cements [17][18][19][20][21] and resin composite [20][21][22][23][24][25] . According to studies comparing the fluoride release and recharge properties of conventional glass ionomers and more recently developed fluoride-containing resin composite [20][21][22][23][24][25] , the amount of fluoride released from both these restorative materials was high during the first few days after immersion in DW, but dropped immediately thereafter [19][20][21] . In addition, Xu et al 18) reported that fluoride releasing ability could be restored by applying topical fluoride, and that materials with a high initial fluoride release rate Table 3 Amount of fluoride release in phase 3…”

Evaluation of dentin bonding performance and acid-base resistance of the interface of two-step self-etching adhesive systems

“…It has been widely accepted that fluoride could facilitate remineralization or prevent demineralization of the dental structure 34,35) . Fluoride releasing from restorative materials has been extensively researched for many years 6,35) . Regarding the presence of a fluoridereleasing component in the adhesive resin, several studies 9,36) have established the ability of fluoride ions to inhibit secondary caries by the remineralization of dentin around the restoration.…”

“…With regard to these fluoride-releasing restorative materials, some researchers have extensively demonstrated their significant cariostatic and antibacterial effects 5,6) . Although advances in adhesive dentistry have brought about improvements in bonding systems and techniques, adhesive failures at the tooth-restoration interface still remain a challenge in the dental field 1) .…”