Mineral content of ionomer cements and preventive effect of these cements against white spot lesions around restorations

Paiva, Lilian Fernanda Santos; Fidalgo, Tatiana Kelly da Silva; Maia, Lucianne Cople

doi:10.1590/1807-3107bor-2014.vol28.0034

Cited by 6 publications

(6 citation statements)

References 24 publications

(39 reference statements)

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“…GICs have often been referred to as “smart materials” as they have a number of properties which may be altered in a controlled fashion in response to stimuli. These include ion exchange and recharge between the GIC and external environment, chemical adhesion to tooth enamel and dentin and a thermal expansion coefficient which is similar to teeth [ 35 – 37 ]. GICs also allow the incorporation of bioactive molecules including fluoride, strontium, calcium and phosphate that can be released to extend the influence of the material beyond its boundaries [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

“…GICs also allow the incorporation of bioactive molecules including fluoride, strontium, calcium and phosphate that can be released to extend the influence of the material beyond its boundaries [ 27 ]. Previous studies have shown that GICs are capable of remineralising carious tissue due to their high content of apatite forming ions and can prevent secondary caries lesions through ion release and chemical bonding properties with tooth enamel [ 37 ]. Al Zraikat et al .…”

Section: Discussionmentioning

confidence: 99%

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Casein Phosphopeptide-Amorphous Calcium Phosphate Reduces Streptococcus mutans Biofilm Development on Glass Ionomer Cement and Disrupts Established Biofilms

et al. 2016

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Glass ionomer cements (GIC) are dental restorative materials that are suitable for modification to help prevent dental plaque (biofilm) formation. The aim of this study was to determine the effects of incorporating casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) into a GIC on the colonisation and establishment of Streptococcus mutans biofilms and the effects of aqueous CPP-ACP on established S mutans biofilms. S. mutans biofilms were either established in flow cells before a single ten min exposure to 1% w/v CPP-ACP treatment or cultured in static wells or flow cells with either GIC or GIC containing 3% w/w CPP-ACP as the substratum. The biofilms were then visualised using confocal laser scanning microscopy after BacLight LIVE/DEAD staining. A significant decrease in biovolume and average thickness of S. mutans biofilms was observed in both static and flow cell assays when 3% CPP-ACP was incorporated into the GIC substratum. A single ten min treatment with aqueous 1% CPP-ACP resulted in a 58% decrease in biofilm biomass and thickness of established S. mutans biofilms grown in a flow cell. The treatment also significantly altered the structure of these biofilms compared with controls. The incorporation of 3% CPP-ACP into GIC significantly reduced S. mutans biofilm development indicating another potential anticariogenic mechanism of this material. Additionally aqueous CPP-ACP disrupted established S. mutans biofilms. The use of CPP-ACP containing GIC combined with regular CPP-ACP treatment may lower S. mutans challenge.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Casein Phosphopeptide-Amorphous Calcium Phosphate Reduces Streptococcus mutans Biofilm Development on Glass Ionomer Cement and Disrupts Established Biofilms

et al. 2016

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“…12 In vitro studies used the pHcycling model to mimic the effect of oral conditions on the surface of restorative materials. [13][14][15][16][17] This model is characterized by the dynamics between periods of demineralization and remineralization, simulating a cariogenic challenge 17,18 proposed for laboratory studies by Featherstone and others 19 and modified by Serra and Cury. 20 On this research line, studies examined restorative materials such as glass ionomers and polyacid-modified resins throughout the pH cycling.…”

Section: Introductionmentioning

confidence: 99%

“…20 On this research line, studies examined restorative materials such as glass ionomers and polyacid-modified resins throughout the pH cycling. 13,15,16 Other studies submitted composite resins to pH cycling and analyzed their effect on the materials' surface after simulated toothbrushing. 14,17 Modification of surface roughness occurred when composite resin was submerged in different acidic solutions, with pH values ranging between 6.6 and 2.5.…”

Section: Introductionmentioning

confidence: 99%

Effect of pH Cycling Followed by Simulated Toothbrushing on the Surface Roughness and Bacterial Adhesion of Bulk-fill Composite Resins

Somacal

Manfroi

Monteiro

et al. 2020

Operative Dentistry

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SUMMARY The aim was to evaluate, in vitro, quantitatively and qualitatively, the effect of pH cycling and simulated toothbrushing on surface roughness (Ra) and bacterial adhesion (Cn) of bulk-fill composite resins. Thirty specimens of each composite resin, 5 mm wide and 4 mm high, were obtained: group 1 (control): Filtek Z250 (Z250); group 2: Filtek Bulk-Fill (FTK); group 3: Tetric N-Ceram Bulk-Fill (TTC); and group 4: Aura Bulk-Fill (AUR). After 24 hours, the specimens were polished and then alternated with demineralization/remineralization solutions for 15 cycles of 24 hours each at 37°C. Then the specimens were submitted to simulated toothbrushing. The Ra and Cn measurements were quantitatively analyzed in three stages: after polishing (Ra0 and Cn0), after pH cycling (Ra1 and Cn1), and after simulated toothbrushing (Ra2 and Cn2). The Ra values were submitted to two-way analysis of variance, followed by the Tukey test (α=0.05). The Kruskal-Wallis test, followed by multiple comparisons, was applied for Cn analysis. Surface topography and bacterial adhesion were observed by scanning electron microscopy (SEM). Z250, FTK, and TTC showed no significant change in Ra regardless of the treatment performed; AUR obtained increased Ra at Ra2 (p<0.05). FTK differed from the others at Cn0 and Cn1 (p<0.05). At Cn2, there was no difference among the composite resins. SEM images showed the exposure of fillers and microcavities at Ra1 and Ra2. There was greater bacterial adhesion at Cn1 for Z250 and FTK. It was concluded that the pH cycling caused surface degradation of all composite resins, which was potentiated by simulated toothbrushing. However, only AUR presented an increased Ra. Bacterial adhesion occurred on all composite resins after pH cycling; however, after simulated toothbrushing, adhesion of dispersed bacteria was similar for all the composite resin groups.

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“…This material has a very important role in clinical pediatric Brazilian Research in Pediatric Dentistry and Integrated Clinic 2014, 14(4):267-274 dentistry, with its main indication stemming from the material's adhesiveness to the dental structure, coefficient of linear thermal expansion similar to the tooth's, biocompatibility, and liberation of fluoride [34,35]. Because pediatric patients are less able to control caries, the liberated fluoride has the ability to remineralize the dental structure and stop the caries process [36].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Therapeutic Decision for Treatment of Carious Lesions by Dental Students

Silva¹,

Azevedo²,

Bezerra³

2014

Pesqui. bras. odontopediatria clín. integr.

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Objective: To evaluate the therapeutic decision making for the academic of the last year of dentistry at the universities of the Distrito Federal, on dental caries in deciduous teeth and permanent young. Material and Methods: The evaluation was obtained through the application of a questionnaire containing a diagram representing five different stages of deep carious lesions on interproximal radiographs. Were selected through census of students enrolled last semester of each institution and concluded that the theoretical discipline of pediatric dentistry in accordance with the curriculum offered by the University. Data were analyzed statistically by the chi-square test the 5% level of significance. Results: We analyzed 132 questionnaires of which 30.3% of respondents opted for immediate restorative treatment for the injuries to deciduous teeth in the dentin-enamel junction to the permanent tooth, the percentage rose to 31.1%, revealing that there was similarity between universities about which strategy to use. Regarding caries removal there was a discrepancy in an institution compared the other in choosing the more invasive treatment (p = 0.0014). Conclusion: We see the need to implement teaching strategies for the training of a professional within the philosophy of minimum intervention.

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Mineral content of ionomer cements and preventive effect of these cements against white spot lesions around restorations

Cited by 6 publications

References 24 publications

Casein Phosphopeptide-Amorphous Calcium Phosphate Reduces Streptococcus mutans Biofilm Development on Glass Ionomer Cement and Disrupts Established Biofilms

Casein Phosphopeptide-Amorphous Calcium Phosphate Reduces Streptococcus mutans Biofilm Development on Glass Ionomer Cement and Disrupts Established Biofilms

Effect of pH Cycling Followed by Simulated Toothbrushing on the Surface Roughness and Bacterial Adhesion of Bulk-fill Composite Resins

Evaluation of Therapeutic Decision for Treatment of Carious Lesions by Dental Students

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