Related Experiment Video
Updated: May 23, 2026

05:42
Detection and Removal of Tooth-Colored Composite Resin Using the Fluorescence-Aided Identification Technique
Published on: July 27, 2022
Fluoride and aluminum release from restorative materials using ion chromatography
Zeynep Okte1, Sule Bayrak, Ulvi Reha Fidanci
1Department of Pediatric Dentistry, Faculty of Dentistry, Ankara University, Ankara, Turkey.
Journal of Applied Oral Science : Revista FOB
|March 23, 2012
Summary
Dental restorative materials released more fluoride and aluminum in double-distilled water than in artificial saliva. Vitremer, a resin-modified glass ionomer cement, showed the highest release in water.
Area of Science:
- Dental Materials Science
- Biomaterials
- Analytical Chemistry
Background:
- Dental restorative materials are crucial for oral health.
- Understanding ion release from these materials is vital for assessing biocompatibility and longevity.
- Fluoride and aluminum release can impact surrounding tissues and material integrity.
Purpose of the Study:
- To quantify fluoride and aluminum ion release from four distinct dental restorative materials.
- To compare ion release in two different storage media: artificial saliva and double-distilled water.
Main Methods:
- Four restorative materials (Kavitan Plus, Vitremer, Dyract Extra, Surefil) were prepared into specimens.
- Specimens were immersed in artificial saliva or double-distilled water for three weeks.
- Fluoride and aluminum concentrations were measured using ion chromatography.
Main Results:
- Vitremer (resin-modified glass ionomer cement) exhibited the highest fluoride and aluminum release in double-distilled water.
- All tested materials released significantly more fluoride in double-distilled water compared to artificial saliva.
- No aluminum release was detected from any material when stored in artificial saliva.
Conclusions:
- The storage medium significantly influences the release of fluoride and aluminum from dental restorative materials.
- Analytical methods and storage conditions are critical factors in evaluating ion release profiles.
- Material selection and understanding ion release behavior are important for clinical success.
Related Concept Videos
Qualitative Analysis
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
For instance, group IV...
Ion-Exchange Chromatography
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
Extraction: Advanced Methods
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...
Flame Photometry: Lab
In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
