Weight loss of three resin-based lining materials containing calcium following a phosphoric acid-etching and washing cycle

Burke, F. J. T.; Watts, D C

doi:10.1016/0300-5712(89)90008-0

Cited by 19 publications

(7 citation statements)

References 25 publications

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“…Similar results have been reported by Burke and Watts 2 , where resin-based lining materials proved to have better resistance than conventional calcium hydroxide cements, even if further clinical properties of those materials, such as their polymerization shrinkage, still need to be investigated.…”

Section: Discussionsupporting

confidence: 86%

“…Hermann suggested in 1920 that materials containing calcium hydroxide had an important use as bases and cavity liners 2 , 18 . Their indications include favoring pulp healing after injury by caries and/or operational procedures as well as protecting the pulp against the penetration of components of restorative materials and oral substances 11 , 16 – 18 .…”

Section: Introductionmentioning

confidence: 99%

“…More recently, manufacturers have produced resin-based calcium containing materials with superior physical properties when compared to cements without resin components. These materials are cured by visible light 7 and are highly resistant to etchants 2 .…”

Section: Introductionmentioning

confidence: 99%

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Water sorption and solubility of different calcium hydroxide cements

et al. 2009

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Objectives:Calcium hydroxide cements have been largely used in deep cavities due to their abilities to stimulate dentin formation. However, their resistance can be relatively low and their solubility relatively high, in many instances. This study evaluated water sorption and solubility of different calcium hydroxide cements, in order to show alterations that may reduce their effectiveness.Material and methods:Five discs (20 mm in diameter and 1.5 mm thick) of three different materials (Biocal®, Dycal® and Hidro C®) were prepared with the aid of a ring-shaped metallic matrix. After being stored at 37°C for 24 h, the discs were weighed on a precision weight scale, dehydrated and weighed again. Immediately after weighing, discs were stored for a week in 50 mL of distilled water at 37°C and, then, weighed again, dehydrated and submitted to a new weighing. The loss of soluble material and its water sorption was obtained from the difference between the initial and the final dry mass of each disc, after 1 week of immersion in water. Data were analyzed for significant differences by two-way ANOVA and Tukey's test (p<0.05).Results:Mean water sorption values (g) ± standard deviation and percentage (%), for each evaluated cement, were: Biocal® (0.006 ± 0.001 / 2.15); Dycal® (0.016 ± 0.004 / 5.49); and Hidro C® (0.025 ± 0.003 / 8.27). Mean solubility values (g) ± standard deviation and percentage (%), for each evaluated cement, were: Biocal® (0.002 ± 0.001 / 0.72); Dycal® (0.013 ± 0.004 / 4.21); and Hidro C® (0.023 ± 0.004 / 7.65).Conclusions:Biocal® absorbed less water and was less soluble than the other evaluated cements; Hidro C® exhibited the highest water sorption and solubility values; and there were significant differences among all evaluated experimental groups.

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Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

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Water sorption and solubility of different calcium hydroxide cements

et al. 2009

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“…This material has lower solubility and water sorption than the CH paste, increasing restoration longevity. 27 Additionally, the CH cement is of low strength 28 and is highly resistant to etchant, 29 which is necessary for restorations with resin modified glass ionomer cement (RMGIC). Although stainless steel crowns provide optimal coronal seal, 6 , 13 , 17 in the present study and in several others 6 , 10 , 11 , 24 , 30 involving Class I and II cavities of primary molars in a high caries risk population, final restorations were performed with RMGIC.…”

Section: Discussionmentioning

confidence: 99%

Comparison between calcium hydroxide mixtures and mineral trioxide aggregate in primary teeth pulpotomy: a randomized controlled trial

et al. 2019

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Objectives: To evaluate the effect of calcium hydroxide (CH) associated with two different vehicles as a capping material for pulp tissue in primary molars, compared with mineral trioxide aggregate (MTA). Methodology: Forty-five primary mandibular molars with dental caries were treated by conventional pulpotomy using one of the following materials: MTA only (MTA group), CH with saline (CH+saline group) and CH with polyethylene glycol (CH+PEG group) (15 teeth/group). Clinical and periapical radiographic examinations of the pulpotomized teeth were performed 3, 6, and 12 months after treatment. Data were tested by chi-squared analysis and a multiple comparison post-test. Results: The MTA group showed both clinical and radiographic treatment success in 14/14 teeth (100%), at all follow-up appointments. By clinical evaluation, no teeth in the CH+saline and CH+PEG groups had signs of mobility, fistula, swelling or inflammation of the surrounding gingival tissue. However, in the CH+saline group, radiographic analysis detected internal resorption in up to 9/15 teeth (67%), and inter-radicular bone resorption and furcation radiolucency in up to 5/15 teeth (36%), from 3 to 12 months of follow-up. In the CH+PEG group, 2/11 teeth (18%) had internal resorption and 1/11 teeth (9%) presented bone resorption and furcation radiolucency at all follow-up appointments. Conclusion: CH with PEG performed better than CH with saline as capping material for pulpotomy of primary teeth. However, both combinations yielded clinical and radiographic results inferior to those of MTA alone.

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“…With the purpose of improving the properties of conventional calcium hydroxide cavity liners, were developed resin-based cavity liners containing calcium hydroxide. These materials are light-cured 20 , highly resistant to etchants 21 , present superior physical properties, and handling characteristics 14 . Currently, there are no studies showing if resin-based cavity liners with calcium hydroxide present alteration in pH and release of calcium ions when compared to conventional cavity liners.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of calcium release and pH value of light-cured cavity liners for pulp-capping materials

Pereira

Cruvinel

Dantas

et al. 2018

Rev. odontol. UNESP

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Introduction Cavity liners based calcium hydroxide present low strength and high solubility that is consider a disadvantage. In order to enhance these properties it was developed a light-cured cavity liner based calcium hydroxide containing resin. Objective The purpose of this study was to evaluate the pH and calcium release of light-cured cavity liners. Material and method There were prepared specimens (n=10) with the Ultra-Blend ® plus, Biocal® (light cured cements) and Hydro C® (control). The samples were stored in 10 mL of distilled water and maintained at 37 °C. After 24 hours, 7, and 14 days, there were analyzed pH and the release of calcium levels. The data were statistically analyzed by ANOVA and Tukey test (α = 0.05). Result The results of pH showed Hydro C > Ultra-Blend plus > Biocal. Biocal presented worst calcium release. Conclusion Light-cured materials present lower calcium release and alteration in pH values.

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Weight loss of three resin-based lining materials containing calcium following a phosphoric acid-etching and washing cycle

Cited by 19 publications

References 25 publications

Water sorption and solubility of different calcium hydroxide cements

Water sorption and solubility of different calcium hydroxide cements

Comparison between calcium hydroxide mixtures and mineral trioxide aggregate in primary teeth pulpotomy: a randomized controlled trial

Evaluation of calcium release and pH value of light-cured cavity liners for pulp-capping materials

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