The effects of incorporation of silver-zeolite on selected properties of mineral trioxide aggregate

Abstract

The purpose of this study was to evaluate some physical and chemical properties of MTA incorporated with antibacterial silver zeolite (SZ). 0%, 0.2% or 2% mass fraction of SZ was added to MTA powder. The amounts of calcium released from the specimen in deionized water were measured with an atomic absorption spectrophotometer. The setting times of the samples were evaluated using Gilmore-type needles. For solubility and water absorption tests, the samples were placed in a cylindrical polystyrene-sealed container. At 7 days, the samples were removed from solutions and blotted dry for solubility and water absorption test. The highest calcium release was detected in 2% SZ MTA at 24 h. The addition of 2% SZ to MTA reduced the setting time statistically (p<0.05). 2% SZ MTA was significantly more soluble than MTA and 0.2 % SZ MTA (p<0.05). Further research is needed prior to clinical use of MTA with incorporated SZ.

Zeolite-silver-zinc nanoparticles: Biocompatibility and their effect on the compressive strength of mineral trioxide aggregate

“…The powder-to-liquid ratio was the same in all the samples. Moreover, Ze-Ag-Zn was used at 2 wt% because in previous studies this percentage positively affected some properties of MTA (10,11). Mixing the powder with liquid was carried out manually by one person for all the samples for 15 seconds.…”

“…It is a crystalline structure of alumino-silicate with a porous molecular structure in which various ions such as zinc and silver is embedded in the pores (10,11). A review of the literature in relation to the use of zeolite in combination with various elements such as silver and zinc in the dental field indicates its positive antimicrobials effect (12,13).…”

“…Incorporation of silver-zeolite to MTA has resulted in an increase in its solubility and release of calcium and also in a decrease in setting time. In this context, mixing with a 2 wt% has led to better results than mixing with 0.2 wt% (10). In addition, a combination of MTA with silver-zeolite has resulted in an increase in its antibacterial activity against microorganisms such as E. faecalis , S. aureus and C. albicans (11).…”

Nanomaterials in Dentistry: State of the Art and Future Challenges

“…Their results with a 4–5% Zeomic ® loading showed a significantly greater effect on the pH value decrease when compared with the unloaded samples, suggesting that these materials can have some applications in denture stomatitis. Several studies [ 34 , 35 , 36 ] also show that zeolite loaded with Ag + cations is a good additive to Mineral Trioxide Aggregate (MTA) since it is able to confer it with an antimicrobial effect, finding a correlation between the amount of Ag+ cations released and the bacteria/fungi growth inhibition. MTA is a cement widely used in endodontics [ 37 ], since it is biocompatible, insoluble in tissue fluids, and able to seal the pathways between the root canal system and its surrounding tissues.…”

Evaluation of the Push-out Bond Strength of Mineral Trioxide Aggregate Mixed with Silver Zeolite: An in vitro Study

“…Recent studies have shown that the association of MTA with SZ increases its antibacterial properties. [7][8][9][10][11] However, for success of endodontic procedure, it is equally important to investigate whether addition of SZ affects marginal adaptation of the cement with dentin. There are several methods for evaluating the adhesion of dental material to dentin.…”