Characterization of Morphology and Composition of Inorganic Fillers in Dental Alginates

Guiraldo, Ricardo Danil; Berger, Sandrine Bittencourt; Consani, Símonídes; Carvalho, Rodrigo Varella de; Lopes, Murilo Baena; Meneghel, Luciana Lira; Silva, Fabiane Borges da; Sinhoreti, Mário Alexandre Coelho

doi:10.1155/2014/178064

Cited by 12 publications

(8 citation statements)

References 14 publications

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“…Our results are in agreement with those of McCabe et al [20] who suggested that potassium alginate with a concentration of 11-16% was a suitable components for an irreversible hydrocolloid [20]. Moreover, other studies reported that the 15% concentration of potassium alginate was appropriate to formulate an irreversible hydrocolloid impression material [21,22].…”

Section: Discussionsupporting

confidence: 93%

A Promising Potential of Brown Algae Sargassum polycystum as Irreversible Hydrocolloid Impression Material

et al. 2022

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This study aimed to investigate the potential use of brown algae Sargassum polycystum as irreversible hydrocolloid (alginate) impression material. Potassium alginate extracted from Sargassum polycystum was prepared in three different compositions (14%, 15%, and 16%) and mixed with other standard components to form an alginate impression material. Prior to that, the purity of potassium alginate was quantified with Fourier Transform Infrared Spectroscopy (FTIR) analysis. As a control material, the alginate impression material from a commercially available product was used. All alginate impression materials were then applied to a die stone model. Dimensional accuracy was measured by calculating the mesiodistal width of incisors in the generated dental cast using a digital caliper 0.01 accuracy (five replications). In addition, to evaluate the dimensional stability, the impression results were poured at four different periods (immediately, 5 min, 10 min, and 15 min). An independent t-test was performed to compare the measurement results with p < 0.05 considered significant. Analytical results confirm that the impression material containing 15% potassium alginate gives the best dimensional accuracy similar to control (p > 0.05). Meanwhile, the optimal dimensional stability was produced in the impression material containing 16% potassium alginate. Our study suggested that brown algae Sargassum polycystum has a promising potential to be used as an alginate impression material in clinical application.

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Section: Discussionsupporting

confidence: 93%

A Promising Potential of Brown Algae Sargassum polycystum as Irreversible Hydrocolloid Impression Material

et al. 2022

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“…Badali oni jednak głównie tradycyjne masy alginatowe, co w obliczu własnych i przytoczonych badań wydaje się czynnikiem decydującym o takich wynikach. 16,17 W ocenie własnej autorów niniejszej that such a situation takes place regardless of supplying an external source to provide an increase in humidity to the impression storage environment -the minimum average value of the deviation from the reference scan at 144 hours of the study occurred in the group with a wet towel placed in a double-zipped bag without contact with the impression; however, the difference between this group and the group in which the impression had been placed in the double-zipped bag without any additional sources to potentially increase the humidity was statistically insignificant. [15][16][17] Guiraldo et al examined the existence of variations in the inorganic composition of the filler particles.…”

Section: Dyskusjamentioning

confidence: 99%

“…16,17 W ocenie własnej autorów niniejszej that such a situation takes place regardless of supplying an external source to provide an increase in humidity to the impression storage environment -the minimum average value of the deviation from the reference scan at 144 hours of the study occurred in the group with a wet towel placed in a double-zipped bag without contact with the impression; however, the difference between this group and the group in which the impression had been placed in the double-zipped bag without any additional sources to potentially increase the humidity was statistically insignificant. [15][16][17] Guiraldo et al examined the existence of variations in the inorganic composition of the filler particles. Among five alginate materials that were selected for the study, Hydrogum 5 showed the highest content of inorganic filler (84.85%), therefore for this particular material, the lowest volumetric change is expected to occur.…”

Section: Dyskusjamentioning

confidence: 99%

Three-dimensional evaluation of extended-pour alginate impressions depending on storage conditions

Szerszeń¹,

Sochańska²,

Ochał³

et al. 2021

Prosthodontics

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Background. For many years, alginates have remained the most frequently chosen impression materials in the initial stages of treatment due to their numerous advantages, such as ease of insertion and removal from the oral cavity, or low cost of the material. In recent years, alginate impression materials called "extended-pour" have appeared on the dental market, allowing clinicians to make plaster models even after a few days.Aim. The aim of the study was to perform a three-dimensional evaluation of extendedpour alginate impressions depending on the environment and storage time.Material and methods. A series of threedimensional images of forty impressions made of high dimensional stability alginate were tested. The scans were divided into groups depending on the conditions of storing the impressions. The three-dimensional images were superimposed using graphic software, and the deviations were calculated. Data in the form of 5600 deviation values were subjected to statistical analysis.

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“…When compared to other elastomeric impression materials, these alginate impressions do not exhibit dimensional stability and cannot accurately recreate finer details or surface details. The influence of the filler size and composition, which typically contain about 7.94-14.59 μm filler size [2,4,5], may be responsible.…”

Section: Introductionmentioning

confidence: 99%

Alternative dental impression fillers made of nanorod glutinous rice flour particles through precipitation

Takarini

Asri

Djustiana

et al. 2023

Mater. Res. Express

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In this work, nanorod particles were synthesized from a locally available source, glutinous rice flour, using sodium hydroxide (NaOH) through a simple precipitation process. The synthesized nanofillers were then presented as an alternative organic filler for dental impression application to support the making of a diagnostic and working model. Dynamic Light Scattering, Scanning Electron Microscope, Fourier Transform Infrared Spectroscopy, X-ray Diffraction, Energy Dispersive Spectroscopy, Thermogravimetric Analysis, and Differential Scanning Colorimeter were used to characterize the fillers. The particle size measurement, morphology interaction, and composition of glutinous rice flour nanorod particles were also investigated. The cell viability using 3T3L1 cells was assessed to determine the safety of nanorod particles using the MTT assay and trypan blue solution. All treated samples exhibit a change in particle morphology from polyhedral to rod. We observed a decrease in crystallinity, dehydration, and gelatinization temperature. Its functional group interacting with sodium hydroxide also changes slightly after size reduction. The samples treated with 3000 centrifugation speed without surfactant addition showed changes from the control sample's 3931.71 nm to the smallest average width particle size of 73.26 nm with an average length of 865.15 nm. All of the treated samples with NaOH and NaOH-surfactant additions met the non-cytotoxicity acceptance criteria in the range of 73.54-99.58%, according to the cell viability results. The incorporation of 15 wt% of the synthesized nanorod fillers resulted in a 20 µm continuous line as the impression materials specimen, yielding a satisfactory detail reproduction test result. In conclusion, nanorod particles with biocompatible properties have been successfully manufactured and can potentially be used in the future as an alternative dental impression filler materials.

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Characterization of Morphology and Composition of Inorganic Fillers in Dental Alginates

Cited by 12 publications

References 14 publications

A Promising Potential of Brown Algae Sargassum polycystum as Irreversible Hydrocolloid Impression Material

A Promising Potential of Brown Algae Sargassum polycystum as Irreversible Hydrocolloid Impression Material

Three-dimensional evaluation of extended-pour alginate impressions depending on storage conditions

Alternative dental impression fillers made of nanorod glutinous rice flour particles through precipitation

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