Comparing MTA and Ketac Molar Easymix for Furcation Perforation Repair using a Volumetric Method

Aim: We compared the ability of mineral trioxide aggregate (MTA) and Ketac Molar Easymix (KM) to repair furcal perforations in extracted human molars, based on the volume of methylene blue dye penetration. Methodology: In total, 44 human mandibular molars were divided randomly into two (n = 20 each) experimental groups, with two teeth used as positive controls and two teeth without perforations used as negative controls. Group 1 was repaired with MTA and group 2 with Ketac Molar Easymix. The volumetric determination of dye penetration was based on the molecular characteristics of methylene blue. The standard area of a methylene blue particle is known and the surface area can be calculated. We converted the dye penetration area into a volume and performed quantitative analyses. Results: Volume measurement using the dye penetration method showed that KM resulted in more microleakage than MTA (p < 0.05). Conclusions: Mineral trioxide aggregate resulted in significantly less dye leakage than Ketac Molar Easymix using a volumetric measurement method. How to cite this article: Kaya S, Ganidağlı Ayaz S, Doğan MS, Aydın H. Comparing MTA and Ketac Molar Easymix for furcation perforation repair using a volumetric method. Int Dent Res 2011;1:13-17.

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Management of Root Perforations Using MTA with or without Er:YAG Laser Irradiation: An In Vitro Study

International Journal of Dentistry ◽

10.1155/2012/628375 ◽

2012 ◽

Vol 2012 ◽

pp. 1-5 ◽

Cited By ~ 2

Author(s):

M. Tielemans ◽

I. Saloukas ◽

D. Heysselaer ◽

Ph. Compere ◽

C. Nyssen-Behets ◽

...

Keyword(s):

Methylene Blue ◽

Laser Irradiation ◽

Er:Yag Laser ◽

Mineral Trioxide Aggregate ◽

In Vitro Study ◽

Vitro Study ◽

Blue Dye ◽

Beam Diameter ◽

Significant Difference

The aim of this in vitro study is to compare the microleakage of a root perforation sealed with MTA (mineral trioxide aggregate) (group M) to that sealed with MTA following Er:YAG laser irradiation (group ML). Forty-two recently extracted human monoroot teeth were used. Two cavities were prepared on each root surface. Randomly, on each root, the exposed dentine of one cavity was irradiated prior to MTA filling using an Er:YAG laser with the following settings: 200 mJ/pulses under an air water spray, 10 Hz, pulse duration of 50 μsec, and 0.7 mm beam diameter. All cavities were then sealed with MTA. submitted to thermocycling and immersed in 2% methylene blue dye solution for 12 h. The penetration of methylene blue in the microleakage of cavity was observed and recorded. The mean value dye penetration in cavities sealed with MTA following Er:YAG laser irradiation (%) was lower than that of unlased cavities sealed only with MTA (%). No significant difference was noted. The use of an Er:YAG laser beam for dentinal conditioning prior to MTA filling of perforated roots did not decrease significantly the microleakage of MTA sealing when compared to the conventional use of MTA filling.

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Effect of different dye solutions on the evaluation of the sealing ability of mineral trioxide aggregate

Brazilian Oral Research ◽

10.1590/s1806-83242005000200008 ◽

2005 ◽

Vol 19 (2) ◽

pp. 119-122 ◽

Cited By ~ 13

Author(s):

Mário Tanomaru Filho ◽

Frederick Alves Figueiredo ◽

Juliane Maria Guerreiro Tanomaru

Keyword(s):

Methylene Blue ◽

Rhodamine B ◽

Mineral Trioxide Aggregate ◽

Test Group ◽

Blue Dye ◽

Reduced Pressure ◽

Filling Materials ◽

Sealing Ability ◽

Blue Solution ◽

Root Canal Instrumentation

Alkaline materials have shown incompatibility with methylene blue dye in leakage experiments. The goal of the present study was to analyze the effect of different dyes on the evaluation of the apical sealing ability of Mineral Trioxide Aggregate root-end fillings. Fifty-six extracted human canines were submitted to root canal instrumentation and obturation. After apical resection, retrograde cavities were prepared and teeth were randomly divided into four experimental (n = 13) and two control groups (n = 2). The following root-end filling materials were used: groups 1 and 2 - Pro Root MTA (Dentsply), groups 3 and 4 - zinc oxide-eugenol cement (ZOE). Teeth in groups 1 and 3 were immersed in 2% methylene blue solution, while teeth in groups 2 and 4 were immersed in 0.2% rhodamine B in a reduced pressure environment for 48 hours. Teeth were then longitudinally sectioned and leakage was evaluated. Results were submitted to statistical analysis (ANOVA and Tukey's test). Group 1 presented the least leakage (p < 0.05). It was concluded that the evaluation of the sealing ability of MTA is influenced by the dye used, since this material presented better sealing ability when evaluated with Methylene Blue, but was similar to ZOE when evaluated with rhodamine B.

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Dentin penetrability evaluation of three different dyes in root-end cavities filled with mineral trioxide aggregate (MTA)

Brazilian Oral Research ◽

10.1590/s1806-83242006000200008 ◽

2006 ◽

Vol 20 (2) ◽

pp. 132-136 ◽

Cited By ~ 9

Author(s):

Beatriz Farias Vogt ◽

Cristina Braga Xavier ◽

Flávio Fernando Demarco ◽

Marcio Schüler Padilha

Keyword(s):

Methylene Blue ◽

Statistical Analysis ◽

Silver Nitrate ◽

Quantitative Evaluation ◽

Rhodamine B ◽

Mineral Trioxide Aggregate ◽

T Test ◽

Dye Penetration ◽

Student’S T ◽

Student’S T Test

The purpose of this study was to evaluate the penetration of three dyes in MTA root-end fillings. In 30 single-rooted teeth, cavities for retrofilling were prepared with an ultrasound appliance and filled with MTA. The specimens were randomly assigned to three groups (n = 10) and immersed in the following solutions: 2% methylene blue (MET), 50% silver nitrate (NIT) and 0.2% rhodamine B (ROD). Two transversal slices (1 mm) of the retrofilling region were obtained and evaluated using the Image Tool 3.0 software to obtain a quantitative evaluation (in mm²) of the dye penetration around the retrofillings. Data were submitted to statistical analysis using Student’s t-test. The lowest degree of dye penetration was observed for the NIT group, in both slices (p < 0.05). Dye penetration was significantly larger in the ROD group when compared to the NIT group, in both slices (p < 0.05), and to the MET group, only in slice 1 (p < 0.05). Within the limitations of this study, it was concluded that the choice of dye could influence the penetration evaluation in root-end filling studies, and that the NIT had the lowest penetration capacity in the apical dentine.

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Evaluation of Apical Microleakage in Open Apex Teeth Using MTA Apical Plug in Different Sessions

ISRN Dentistry ◽

10.1155/2013/959813 ◽

2013 ◽

Vol 2013 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Mohammad Yazdizadeh ◽

Zeinab Bouzarjomehri ◽

Navid Khalighinejad ◽

Leyli Sadri

Keyword(s):

Methylene Blue ◽

Nitric Acid ◽

Methyl Salicylate ◽

Negative Control Group ◽

Positive Control ◽

Negative Control ◽

Control Group ◽

Dye Penetration ◽

Significant Difference ◽

Negative Controls

Aim. To compare microleakage of apexification using MTA in one or two sessions. Materials and Methods. 88 single rooted teeth were prepared and divided into two groups then received MTA apical plug. In the first group, the teeth were immersed in normal saline for 24 hours and then backfilled with guttapercha and AH26 sealer. In the second group, the teeth were obturated immediately after receiving apical plug. Four positive and four negative controls were selected. All specimens were placed in 1% methylene blue and decalcified in 5% nitric acid and finally were placed in methyl salicylate until getting transparent. All teeth were visualized for assessment of dye penetration under stereo dissecting microscope. Results. 36 and 35 teeth showed dye leakage in the first and second groups. Dye penetration into the entire canal length was confirmed in the positive control group, and in the negative control group no dye penetration was seen. Mean dye penetration in the first and second group was 5813 and 9152 μm. -test revealed a significant difference between dye penetrations of two groups (). Conclusion. MTA requires adequate time for setting in the presence of the moisture, and final obturation should be delayed until final setting of MTA.

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Using of modified-bentonite as low-cost sorbent for removal of methylene blue dye from aqueous solution

Association of Arab Universities Journal of Engineering Sciences ◽

10.33261/jaaru.2020.27.2.005 ◽

2020 ◽

Vol 27 (2) ◽

pp. 45-54

Author(s):

Saraa Muwafaq Ibrahim ◽

Ziad T. Abd Ali

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Silanol Group ◽

Infrared Spectrometry ◽

Blue Dye ◽

Ammonium Bromide ◽

Vibration Band ◽

Order Kinetic ◽

Methylene Blue Dye ◽

Modified Bentonite

Batch experiments have been studied to remove methylene blue dye (MB) from aqueous solution using modified bentonite. The modified bentonite was synthesized by replacing exchangeable calcium cations in natural bentonite with cationic surfactant cetyl trimethyl ammonium bromide (CTAB). The characteristics of modified bentonite were studied using different analysis such as Scanning electronic microscopy (SEM), Fourier transform infrared spectrometry (FTIR) and surface area. Where SEM shows the natural bentonite has a porous structure, a rough and uneven appearance with scattered and different block structure sizes, while the modified bentonite surface morphology was smooth and supplemented by a limited number of holes. On other hand, (FTIR) analysis that proved NH group aliphatic and aromatic group of MB and silanol group are responsible for the sorption of contaminate. The organic matter peaks at 2848 and 2930 cm-1 in the spectra of modified bentonite which are sharper than those of the natural bentonite were assigned to the CH2 scissor vibration band and the symmetrical CH3 stretching absorption band, respectively, also the 2930 cm-1 peak is assigned to CH stretching band. The batch study was provided the maximum removal efficiency (99.99 % MB) with a sorption capacity of 129.87 mg/g at specified conditions (100 mg/L, 25℃, pH 11 and 250rpm). The sorption isotherm data fitted well with the Freundlich isotherm model. The kinetic studies were revealed that the sorption follows a pseudo-second-order kinetic model which indicates chemisorption between sorbent and sorbate molecules.

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KINETICS STUDY OF METHYLENE BLUE DYE BIOADSORPTION ON BAGGASE

Applied Ecology and Environmental Research ◽

10.15666/aeer/03035043 ◽

2004 ◽

Vol 2 (2) ◽

pp. 35-43 ◽

Cited By ~ 62

Author(s):

S.P. RAGHUVANSHI

Keyword(s):

Methylene Blue ◽

Blue Dye ◽

Kinetics Study ◽

Methylene Blue Dye

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Adsorption Studies of Methylene Blue Dye using Biosorbents

Journal of Chemistry and Chemical Sciences ◽

10.29055/jccs/609 ◽

2018 ◽

Vol 8 (3) ◽

pp. 502-513

Author(s):

Saravanan Narayanan ◽

Rathika Govindasamy

Keyword(s):

Methylene Blue ◽

Blue Dye ◽

Methylene Blue Dye ◽

Adsorption Studies

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The use of insoluble matter of Moroccan oil shale for removal of dyes from aqueous solution

10.31221/osf.io/x4v9p ◽

2019 ◽

Author(s):

Chem Int

Keyword(s):

Methylene Blue ◽

Oil Shale ◽

Heating Temperature ◽

Blue Dye ◽

Adsorption Capacities ◽

Experimental Parameters ◽

Initial Ph ◽

New Material ◽

Activating Agent ◽

Moderate Cost

The study aims to use an adsorbent natural based of Moroccan oil shale of Timahdit area (Y layer) in a physical-chemical adsorption process for treating industrial discharges colorful. The used adsorbent is the insoluble party of the sub-critical extraction of decarbonized oil shale of Timahdit. The tests performed on the methylene blue (MB), showed a strong elimination in the first 10 minutes. The influences of various experimental parameters were studied: mass ratio of adsorbent, time and temperature of thermal treatment, contact time, pH of MB and heating temperature of solution on the parameters of material were studied. The experimental results have shown that the adsorption of methylene blue dye by the adsorbent is more than 90% at initial pH a range 6-7 at room temperature for 30 minutes. The process is simple and the adsorbent produced is a new material with interesting adsorption capacities of moderate cost which does not require an activating agent and can be used as industrial adsorbent for the decontamination of effluents containing organic pollutants.

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