scholarly journals PROPOLIS EXTRACT SORPTION AS A PULPCAPPING AGENT

2021 ◽  
Vol 6 (1) ◽  
pp. 50
Author(s):  
Isyana Erlita ◽  
Rahmatillah Rahmatillah ◽  
Sherli Diana
Keyword(s):  
Zinc Oxide ◽  
Physical Properties ◽  
Water Sorption ◽  
Artificial Saliva ◽  
Positive Control ◽  
Distilled Water ◽  
Propolis Extract ◽  
Alternative Material ◽  
High Sorption ◽  
One Way Anova

ABSTRACTBackground: This research is an experimental study to determine the physical properties of propolis extract as an alternative material in pulpcapping treatment. High sorption value is the main cause of pulpcapping treatment failure. Purpose: to analyze the sorption value of propolis extract in water and artificial saliva. Materials and Methods: Thirty disc-shaped zinc oxide propolis (15 mm x 1 mm) specimens were stored in the incubator at 37ºC for 24 hours. The discs were weighed, dehydrated, and weighed again. Immediately after weighing, the discs were immersed for 1 day, 3 days, and 7 days in 50 mL of distilled water and artificial saliva at 37ºC and then weighed for second time (sorption value). Data were analyzed by one way ANOVA for data processing in the water and artificial saliva immersion group, then the Independent T-Test for inter-group immersion in water with artificial saliva. Results: There were differences in the sorption value of zinc oxide propolis with ZnOE (positive control) in water and artificial saliva between immersion times of 1 day, 3 days, and 7 days. There was no difference in the sorption value of zinc oxide propolis between the water and the artificial saliva immersion group. Conclusion: The sorption value of propolis extract, both in water and artificial saliva immersion shows a high sorption value. This indicates that the propolis extract has not met the criteria as a pulpcapping material in terms of its physical properties, namely absorption of water (water sorption).Keywords: Propolis extract, Pulpcapping, Sorption

scholarly journals Influence of Different Concentration and Ratio of a Photoinitiator System on the Properties of Experimental Resin Composites

2017 ◽  
Vol 28 (6) ◽  
pp. 726-730 ◽  
Author(s):  
Caio Vinícius Signorelli Grohmann ◽  
Eveline Freitas Soares ◽  
Eduardo José Carvalho Souza-Junior ◽  
William Cunha Brandt ◽  
Regina Maria Puppin-Rontani ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Flexural Strength ◽  
Tertiary Amine ◽  
Water Sorption ◽  
Water Solubility ◽  
Distilled Water ◽  
Resin Composites ◽  
Amine Concentration ◽  
One Way Anova

Abstract The aim in this study was to evaluate the influence of different ratio of camphorquinone/tertiary amine concentration on the flexural strength (FS), elastic modulus (EM), degree of conversion (DC), yellowing (YL), water sorption (WS) and water solubility (WSL) of experimental composites. Thus, acrylate blends were prepared with different camphorquinone (CQ) and amine (DABE) concentrations and ratios by weight: (CQ/DABE%): 0.4/0.4% (C1), 0.4/0.8% (C2), 0.6/0.6% (C3), 0.6/1.2% (C4), 0.8/0.8% (C5), 0.8/1.6% (C6), 1.0/1.0% (C7), 1.0/2.0% (C8), 1.5/1.5% (C9), 1.5/3.0% (C10). For the FS and EM, rectangular specimens (7x2x1 mm, n=10) were photo-activated by single-peak LED for 20 s and tested at Instron (0.5 mm/min). Then, the same specimens were evaluated by FTIR for DC measurement. For YL, disks (5x2 mm, n=10) were prepared, light-cured for 20 s and evaluated in spectrophotometer using the b aspect of the CIEL*a*b* system. For WS and WSL, the volume of the samples was calculated (mm³). For WS and WSL, composites disks (5x0.5 mm, n=5) were prepared. After desiccation, the specimens were stored in distilled water for 7 days and again desiccated, in order to measure the WS and WSL. Data were submitted to one-way ANOVA and Tukey’s test (5%). The groups C8, C9 and C10 showed higher DC, EM and YL means, compared to other composites. Therefore, the FS and WS values were similar among all groups. Also, C1, C2 and C3 presented higher WSL in 7 days, compared to other composites. In general, higher concentrations of camphorquinone promoted higher physical-mechanical properties; however, inducing higher yellowing effect for the experimental composites

scholarly journals Kelarutantumpatansementara Cavit dalamrendamansaliva buatan (Solubility of Cavit temporary filling immersed in artificial saliva)

2014 ◽  
Vol 13 (2) ◽  
pp. 69
Author(s):  
Juni Jekti Nugroho ◽  
Hasrul Husain
Keyword(s):  
Artificial Saliva ◽  
Distilled Water ◽  
Fourth Group ◽  
The Third ◽  
Significant Difference ◽  
Water Ph ◽  
One Way Anova ◽  
Temporary Filling

A continuous temporary filling inside the mouth would expose acid produced by microorganism during fermentation ofcarbohydrate that would lower the pH of saliva. The aim of this research is to determine the variation on solubilitylevels of Cavit temporary filling immersed in artificial saliva with pH 4, 6, and 8. Samples were placed in tubecontainers with 2 mm in height and 7 mm in diameter. Samples were immersed in four different groups of artificialsaliva based on the pH, in which the first group was immersed in artificial saliva pH 4, the second in pH 6, the third inpH 8, and the fourth group was immersed in distilled water (pH 7). The results showed that after 7 day of immersion,there was a significant difference on solubility levels between the four groups of treatment (p<0.05). The data weretabulated and analyzed using one-way ANOVA and least significant difference (LSD). Therefore, it can be concludedthat pH can affect the solubility levels of Cavit temporary filling.

Analysis on Compressibility of Dental Amalgam Using Nanomaterial Zinc Oxide (ZnO)

2015 ◽  
Vol 1125 ◽  
pp. 470-473
Author(s):  
Poppy Puspitasari ◽  
Andoko
Keyword(s):  
Zinc Oxide ◽  
Physical Properties ◽  
Dental Amalgam ◽  
Compression Loading ◽  
Dwelling Time ◽  
Compression Load ◽  
Biocompatible Material ◽  
Alternative Material ◽  
Physical Features

The more increasing severe impact of the mercury use on health, particularly as the amalgam material, has required an alternative innovation in order to eliminate the composition of mercury and amalgam. The objective of this research was to proposed a new biocompatible material which was called zinc oxide (ZnO). One of the innovative breakthroughs is by applying nanotechnology to ZnO, an alternative material expectedly to have better physical features and compressibility. Those physical features here including morphology, dimensions, and the comparison ratio of atom were analyzed through the test of XRD, XRF, SEM, and EDX characterization. Further, for its compressibility features, the test of compressibility was carried out using the hydraulic pressing machine with the power of 100-4000 kgf. This test was treated variously on the compression loading (500, 1000, and 2000 kg) with the variety of dwelling times (30, 60 and 90 seconds) purposely to observe its effect on the density of nanoparticles ZnO. The result of this research then shows that the physical properties of the analyzed ZnO has the particle in the size of 14,34 nm with the morphology classified as nano­rods. In the compressibility test, the variation of compression loadings has brought an effect on the significant increase of density of nanoparticles ZnO. In the compression loading at 500 kg, the average of density of ZnO is at 3,170 (g/cm3) with the increase of 4,763% with the addition of the compression loading into 1000 kg. Subsequently, another increase of density again takes place by 7, 539 % in the compression load changed into 2000 kg. The variation of the dwelling times also contributed to an equal effect in which at the dwelling time of 30 seconds, the average of density of ZnO was at 3,260 (g/cm3), at the dwelling time of 60 seconds, it increased at 0,583%, and the dwelling time of 90 seconds, it again increased at 3,098%.

scholarly journals Effect of whitening mouth rinses on the chemical and physical properties of a nanofilled composite

2021 ◽  
Vol 20 ◽  
pp. e219320
Author(s):  
Laura Carolina Kepler ◽  
Ana Paula Morona Rodrigues ◽  
Mauro Antonio Dall Agnol ◽  
Sinval Adalberto Rodrigues-Junior
Keyword(s):  
Surface Roughness ◽  
Physical Properties ◽  
Water Sorption ◽  
Color Change ◽  
Artificial Saliva ◽  
Color Stability ◽  
Mouth Rinses

Aim: This study analyzed the effect of whitening mouth rinses on water sorption (WS), solubility (SL), color change, and surface roughness of a nanofilled composite. Whitening perceptibility and acceptability (WID) were also studied. Methods: Forty specimens of Filtek Z350XT, shade EA2 were produced and randomly distributed (n=8) to AS – artificial saliva (control); LWE – Listerine Whitening Extreme; CLW – Colgate Luminous White; LCM – Listerine Cool Mint; and CP – Colgate Plax. They were immersed in the mouth rinses 2x/day, for one minute, during 28 days. The color was assessed using an Easyshade spectrophotometer (CIE-L*a*b* system). Surface roughness (Ra-μm) was measured with three parallel measures, using an RP-200 roughness meter. The WS and SL (μg/mm-3) were analyzed based on the ISO 4049 recommendations. The data were analyzed using one- and two-way ANOVA/Tukey tests (α=0.05). Results: Surface roughness significantly increased after immersion in AS and LCM, with no significant differences between the groups either before or after immersion. The ΔE* was not significantly different between the groups. All substances produced a ΔWID higher than the 50%:50% perceptibility and acceptability thresholds. The WS and SL were not significantly affected by the mouth rinses. Conclusion: Whitening mouth rinses did not affect WS, SL, surface roughness, and color stability of a nanofilled composite, regardless of the presence of ethanol in the composition.

scholarly journals Comparative Effects of CPP-ACP and Xylitol F-Varnishes on the Reduction of Tooth Erosion and Its Progression

2020 ◽  
Vol 31 (6) ◽  
pp. 664-672
Author(s):  
Adílis Alexandria ◽  
Ana Maria Gondim Valença ◽  
Lúcio Mendes Cabral ◽  
Lucianne Cople Maia
Keyword(s):  
Artificial Saliva ◽  
Positive Control ◽  
Negative Control ◽  
Deionized Water ◽  
3D Images ◽  
Significance Level ◽  
Tooth Structure ◽  
Varnish Layer ◽  
One Way Anova ◽  
Better Than

Abstract Evaluated the effect of CPP-ACP/NaF and xylitol/NaF varnishes in reduce erosion and progression of erosion. Forty enamel blocks were divided into four groups (n=10): G1=CPP-ACP/NaF varnish (MI varnishTM); G2=xylitol/NaF varnish (Profluorid®); G3=NaF varnish (Duraphat®, positive control) and G4=deionized water (MilliQ®, negative control). Samples were immersed in Sprite ZeroTM (pH 2.58, 4x/day, 3 days), in between immersions, the specimens stayed in artificial saliva. After 3 days of erosion, the eroded area was divided in two (half of one received an additional varnish layer while the other half repeated the same 3-day erosion cycle). The 3D, non-contact profilometry technique was used to determinate tooth structure loss (TSL) and surface roughness (SR). Scanning electron microscopy (SEM) and 3D images were utilized to evaluate the topography of the samples. Mann-Whitney, one-way ANOVA and Tukey tests were used (significance level of 0.05%). SEM and 3D images were descriptively evaluated. After 3 or 6 days of erosion, all tested varnishes were better than G4 (p<0.05) for TSL and SR. In addition, G1 had lower values for TSL than G3 (p<0.05) after 3 days of erosion. Under SEM and 3D images observation, all groups presented porosity, irregularities and depressions on the surface enamel after 3 and 6 days of erosion, more pronounced in G4. An application of topical NaF varnishes was effective in reducing TSL and enamel roughness after erosion challenges, being the CCP-ACP/NaF varnish more effective than NaF varnish and water after 3 days of erosion.

scholarly journals Physicochemical Characteristics of Arginine Enriched NaF Varnish: An In Vitro Study

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2998
Author(s):  
Mohammed Nadeem Bijle ◽  
Manikandan Ekambaram ◽  
Edward Lo ◽  
Cynthia Yiu
Keyword(s):  
Molecular Dynamics ◽  
Physical Properties ◽  
Artificial Saliva ◽  
Chemical Properties ◽  
In Vitro Study ◽  
Physicochemical Characteristics ◽  
Vitro Study ◽  
Physical And Chemical ◽  
Stable Matrix

The in vitro study objectives were to investigate the effect of arginine (Arg) incorporation in a 5% sodium fluoride (NaF) varnish on its physical and chemical properties including F/Arg release. Six experimental formulations were prepared with L-arginine (L-Arg) and L-arginine monohydrochloride at 2%, 4%, and 8% w/v in a 5% NaF varnish, which served as a control. The varnishes were subjected to assessments for adhesion, viscosity, and NaF extraction. Molecular dynamics were simulated to identify post-dynamics total energy for NaF=Arg/Arg>NaF/Arg<NaF concentrations. The Arg/F varnish release profiles were determined in polyacrylic lactate buffer (pH-4.5; 7 days) and artificial saliva (pH-7; 1 h, 24 h, and 12 weeks). Incorporation of L-Arg in NaF varnish significantly influences physical properties ameliorating retention (p < 0.001). L-Arg in NaF varnish institutes the Arg-F complex. Molecular dynamics suggests that NaF>Arg concentration denotes the stabilized environment compared to NaF<Arg (p < 0.001). The 2% Arg-NaF exhibits periodic perennial Arg/F release and shows significantly higher integrated mean F release than NaF (p < 0.001). Incorporating 2% L-arginine in 5% NaF varnish improves its physical properties and renders a stable matrix with enduring higher F/Arg release than control.

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