Measurement of ion elution from dental ceramics

Jakovac, Marko; Živko-Babić, Jasenka; Ćurković, Lidija; Aurer, Andrej

doi:10.1016/j.jeurceramsoc.2005.03.242

Cited by 33 publications

(42 citation statements)

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“…These factors run the gamut from the composition and microstructure of the ceramic material to the chemical characters of both the ceramic material and the erosive or acidic agent, the exposure time and temperature 1) . Previous studies have reported that corrosion or degradation of dental ceramics occurred when ceramics were exposed to aqueous solutions or acidic agents [3][4][5][6][7] . This phenomenon arises because of selective leaching of alkaline metal ions which are far less stable in the glass phase than in the crystalline phase 3) .…”

Section: Introductionmentioning

confidence: 99%

“…This phenomenon arises because of selective leaching of alkaline metal ions which are far less stable in the glass phase than in the crystalline phase 3) . Ceramic degradation causes the exposed surfaces to become roughened 6,8) , promotes plaque accumulation [3][4][5][6]8,9) and wear of the opposing natural teeth or restorative materials, as well as discoloration of dental ceramics. Taken together, degradation of dental ceramics severely compromises the esthetic appearance of ceramic restorations 3,6) .…”

Section: Introductionmentioning

confidence: 99%

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Degradability of fluorapatite-leucite ceramics in naturally acidic agents

2010

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This study was conducted to evaluate the titratable acidity and effect of naturally acidic agents on the surface microhardness, elemental composition, and surface morphology of fluorapatite-leucite ceramics. One hundred and ten ceramic disks (IPS d.SIGN), 12.0 mm in diameter and 2.0 mm in thickness, were fabricated. Before immersion, the baseline data of Vickers microhardness and elemental composition were recorded. Four groups were immersed in acidic agents (citrate buffer solution, green mango juice, and pineapple juice) and deionized water (control) at 37ºC for 168 hours, whereas one group was immersed in 4% acetic acid at 80ºC for 168 hours. After immersion, specimens were evaluated and data were analyzed using one-way repeated ANOVA and Tukey's test (α=0.05). Microhardness values significantly decreased after immersion (p<0.05). In terms of elemental composition, the weight percentages of silicon, potassium, aluminum, and sodium also decreased after immersion (p<0.05). Results of this study showed that fluorapatite-leucite ceramics were affected by long-term immersion in acidic agents.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Degradability of fluorapatite-leucite ceramics in naturally acidic agents

2010

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“…2 In general, the possible toxic effects and allergenic potency of leached ions from dental porcelains are considered to be extremely low. 1,2,5 However, their effects should be taken into account due to unexpectedly higher release rates under unusual conditions. Of greater concern is the accidental ingestion of porcelain fragments from fractured inlays, onlays, and crowns.…”

Section: Introductionmentioning

confidence: 99%

Elemental release and surface changes of fluorapatite–leucite porcelain upon immersion in acidic agents

Kukiattrakoon

Hengtrakool

Kedjarune‐Leggat

2010

Journal of Dental Sciences

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Background/purpose: The potential erosive effects of acidic foods, sour fruits, and drinks on enamel have been extensively investigated. However, their effects on fluorapatiteeleucite porcelain restorations have not been widely examined. The purpose of this study was to evaluate the ion leaching and surface roughness of porcelain immersed in acidic agents. Materials and methods: One-hundred and forty-five discs (12.0 mm in diameter and 2.0 mm thick) were made from fluorapatiteeleucite porcelain (IPS d.SIGN). Baseline data of the elemental compositions of all storage agents and the surface roughness of specimens were recorded. Four groups of discs were then immersed in acidic agents (citrate buffer solution, pineapple juice, and green mango juice) and deionized water (the control) at 37 C for 168 h. One group was immersed in 4% acetic acid at 80 C for 168 h. After immersion, the ion leaching from solutions of all specimens for each acidic agent was measured by inductively coupled plasma optical emission spectroscopy. The surface roughness was evaluated under a profilometer. Surface characteristics of specimens were examined under a scanning electron microscopy (SEM). Data were analyzed using one-way repeated analysis of variance (ANOVA) and Tukey's multiple comparisons (a Z 0.05). Results: Fluorapatiteeleucite porcelain discs exhibited significant leaching of various ions to varying degrees and increased in roughness after being immersed in acidic agents (P < 0.05). SEM photomicrographs also indicated destruction of the surface of the porcelain discs.

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“…Moraes et al 26 and Kamala and Annapurni 27 reached the same conclusion after using 35% and 16% carbamide peroxide, respectively. Dental ceramics are considered the most chemically inert restorative materials, 28 hence, very little concern has been directed toward investigating their corrosion behavior and ionic leach.…”

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confidence: 99%

“…Increased surface roughness will also lead to plaque adhesion, thus changing the interaction of the clinical restoration with the biologic environment 34 . Reduction of chemical stability induces further elution of inorganic ions from the surface of dental ceramic materials; these may have a toxic influence on vital body structures 28 …”

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confidence: 99%