Measurement of pH and calcium ions release from different calcium hydroxide pastes at different intervals of time: Atomic spectrophotometric analysis

Misra, Pranab; Bains, Rhythm; Loomba, Kapil; Singh, Abhinav; Sharma, V.P.; Murthy, Ramesh; Kumar, Rakesh

doi:10.1016/j.jobcr.2016.04.001

Cited by 14 publications

(12 citation statements)

References 25 publications

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“…Further, a WMTA modified by Saghiri et al had nanoscale-sized particles that increased the calcium ion release significantly, affecting hard tissue regeneration to a high degree [10]. Calcium ions also influence tissue mineralization by fastening cell proliferation when present in large quantities [15]. The modified MTA in the present study demonstrated improved hard tissue regeneration potential (as shown in the results of the EDS tests), confirming that calcium ion release is higher in modified MTAs.…”

Section: Discussionsupporting

confidence: 81%

Microleakage Evaluation of Modified Mineral Trioxide Aggregate Effect Toward Marginal Adaptation on Cervical Dentin Perforation

2018

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Objective: To analyze the marginal adaptation of conventional MTA (ProRoot®MTA) and modified MTA (MTA Flow™) on perforated dentin.Methods: Forty specimens of human's premolar teeth with lateral perforations were sealed by conventional MTA (n=20) and modified MTA (n=20). After 24 hours, the specimens were immersed in Indian ink for 24 hours, then embedded in resin and sectioned longitudinally in mesial-distal direction. The score of microleakage was determined using stereo microscope (SteREO Discovery. V12, Carl Zeiss) with 20x magnification. Statistical analysis was done by Chi Square (p<0,05).Results: Less microleakage score (0,5-1mm) was detected in modified MTA (25%) compared to conventional MTA (45%), although not statistically significant. Conclusion:Microleakage were detected in both conventional and modified MTA as material for cervical dentin perforation treatment, although modified-MTA group showed less microleakage score.

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Section: Discussionsupporting

confidence: 81%

Microleakage Evaluation of Modified Mineral Trioxide Aggregate Effect Toward Marginal Adaptation on Cervical Dentin Perforation

2018

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“…Therefore, using intracanal medicament is necessary to protect the root canal system during root canal treatment. 35,36 Several additives have been combined with MTA to enhance the working properties of the cement. It has been demonstrated that NaOCl gel may reduce the setting time and improve the handling characteristics of the mixture.…”

Section: Discussionmentioning

confidence: 99%

“…44 In this study, the release of calcium ions was assessed to check that CHX gel use does not interfere with the dissociation of calcium ions from experimental medicaments and also that it does not decrease pH values. Misra et al 35 studied the release of calcium ions and the pH of calcium hydroxide paste when mixed with different vehicles, and found that the calcium hydroxide with glycerine showed a highest calcium ion release followed by calcium hydroxide with chlorhexidine. The methodology used in this study to analyze the calcium ion release was similar to work done in the previous studies.…”

Section: Discussionmentioning

confidence: 99%

<p>Calcium Silicate-Based Cements as Root Canal Medicament</p>

Mahmoud

Al-Meeri

Farook

et al. 2020

CCIDE

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Purpose: This study aims to retard the setting reaction of CSC by mixing it with 2% chlorhexidine gel (CHX) which will be used as an intracanal medicament, and to evaluate the removal of the experimental medicaments from the root canal. Materials and Methods: White Portland cement, white ProRoot MTA and Biodentine were mixed with 2% CHX. The setting time, flowability and film thickness of the CSC/CHX mixture (experimental medicaments) were assessed and measured following the standards of ISO specification. Calcium ion release was measured using ICP-OES, while pH was tested using a pH meter. Moreover, twenty single-rooted teeth were filled with the experimental medicaments for seven days, then the medicaments were removed and the samples analyzed using SEM. Calcium hydroxide paste was used as a control. Results: The setting time of the experimental medicaments was inhibited until 84 days. The calcium ion release of the experimental medicaments was significantly higher compared to the control over the period of 14 days (P<0.001). The mean pH value was above 11.45 for all tested materials over a period of 14 days, with no significant difference between them (P<0.05). There was no significant difference in film thickness of the experimental medicaments compared to the control (P> 0.05). However, the flowability of the experimental medicaments was significantly higher than the control (P<0.05). SEM showed no significant differences in the removal of the intracanal medicaments between all the tested groups. Conclusion: The addition of 2% CHX to CSCs retarded or inhibited its setting reaction over a period of 84 days. The calcium ion release and flowability of these experimental medicaments was found to be better than calcium hydroxide. Removal of the intracanal medicaments from the root canal was successfully achieved in all groups. Therefore, these experimental medicaments have the potential to be used as an enhanced root canal medicament.

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“…Another study by Misra also observed an increase of Ca 2+ rate of Ca(OH) 2 in double distilled water from day 1 to day 2 and day 7, however it then declined in day 15 and 30 period of observation, they concluded that the use of aqueous vehicle for Ca(OH) 2 resulted in a rapid initial ionic dissociation which will decreased consequently. 17 Several factors can affect the release of Ca 2+ namely, solvent, viscosity, particle size, the ratio of powder to liquid and contamination. 13,16,18 Viscosity of a material affects the release of Ca 2+ , a low viscosity vehicle will dissociate the Ca 2+ and OHions faster because they will have less inner particle interaction, but not as stable as a viscous solvent.…”

Section: Discussionmentioning

confidence: 99%

“…[12][13][14] Since the release of inorganic ions namely, Ca 2+ plays an important task in the effectiveness of dental materials, many studies have been carried out to measure the Ca 2+ ions released by different kinds of dental material. [15][16][17][18] Considering the newly developed material has not comprehensively evaluated particularly in its bioactivity by releasing Ca 2+ ions, our study aimed to evaluate the Ca 2+ release rate of the Ca(OH) 2 prototype from Indonesian limestone at different interval of time using an atomic spectrophotometer.…”

Section: Ca(oh)mentioning

confidence: 99%

Evaluation of calcium ion release in calcium hydroxide prototype as intracanal medicament

Sidiqa

Zakaria

Artilia

et al. 2020

J Dentomaxillofac Sci

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Objective: Calcium Hydroxide (Ca(OH) 2 ) has been widely used in many dental treatments such as pulp capping, dentin hypersensitivity and as an endodontic intracanal medicament. Ca(OH) 2 is highly alkaline, has antimicrobial, and remineralization action by releasing Ca 2+ and OH. Ca 2+ release plays an important role in cell proliferation and remineralization of hard tissue healing. Indonesian limestone can be synthesized to produce Ca(OH) 2 that can be an alternative to commercial Ca(OH) 2 available. Therefore this study aimed to synthesized a Ca(OH) 2 prototype and evaluate the Ca 2+ released by the Ca(OH) 2 prototype. Material and Methods: Ca(OH) 2 prototype was synthesized from limestone by calcination process and characterized by XRD and FTIR. The Ca(OH) 2 prototype was then manipulated to a pasta form by mixing the powder with distilled water in 0.8 w/p ratio then inserted to a polyethylene tubed (2x10mm) using and immersed in 10 ml distilled water. Samples were divided into three groups for different periods of Ca 2+ evaluation (1, 7 and 14 days). The Ca 2+ concentration released was measured by a Spectrophotometer (DIRUI DR-7000D). Data obtained were analyzed by Anova. Results: The observations on one day immersion was 3.589 mg/dL, the observation for seven days was 3.736 mg/dL, and for 14 days was 3.850 mg/dL. Statistically p<0.05. Conclusion: Calcium hydroxide prototype released a sustainable amount of Ca 2+ up to 14 days with the highest concentration achieved on day 14th.

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Measurement of pH and calcium ions release from different calcium hydroxide pastes at different intervals of time: Atomic spectrophotometric analysis

Cited by 14 publications

References 25 publications

Microleakage Evaluation of Modified Mineral Trioxide Aggregate Effect Toward Marginal Adaptation on Cervical Dentin Perforation

Microleakage Evaluation of Modified Mineral Trioxide Aggregate Effect Toward Marginal Adaptation on Cervical Dentin Perforation

<p>Calcium Silicate-Based Cements as Root Canal Medicament</p>

Evaluation of calcium ion release in calcium hydroxide prototype as intracanal medicament

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