Influence of the addition of chlorhexidine diacetate on bond strength of a high-viscosity glass ionomer cement to sound and artificial caries-affected dentin

Becci, Ana Carolina de Oliveira; Marti, Luana Mafra; Zuanon, Ângela Cristina Cilense; Brighenti, Fernanda Lourenção; Spolidório, Denise Madalena Palomari; Giro, Elisa María Aparecida

doi:10.1590/s1807-25772014000100001

Cited by 9 publications

(11 citation statements)

References 19 publications

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“…Contemporary dentistry advocates a minimally invasive approach to cavity preparations removing infected dentin while preserving caries-affected dentin that is amenable to reorganization [15] this study used affected dentin as a substrate for bond strength testing, a design consistent with previous work by Nakajima et al [24], Yoshiyama et al [2]. Arrais et al [25], Erhardt et al [5], De Carvalho et al [26], Carvalhoet al [27], Scheffel et al [3], Becci et al [15], Lenzi et al [4], Mattos et al [28], and Li et al [29].…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, the microbiological method was used to induce dentinal [14] and Sattabanasuk et al [20] reported the need for standardization of the method used to remove carious lesions in studies seeking to evaluate the bond strength of adhesive systems. In the present study, infected dentin was removed while affected dentin was preserved by using the standard method described by Arrais et al [25], Becci et al [15], and Scheffel et al [3]. Infected dentin was worn down with 320-grit15 silicon carbide sandpaper until resistance to manual pressure with a dental explorer was encountered.…”

Section: Discussionmentioning

confidence: 99%

“…Erupted permanent third molars; no visible cracks, carious lesions or fractures on inspection with a magnifying glass (10X magnification) were included. The selected teeth were stored in saline solution (Eurofarma, São Paulo, Brazil) and disinfected with 0.1% thymol (Carcajon, Campinas, Brazil) [15] [16]. A diamond disc (Fava, São Paulo, Brazil) was used to expose the dentin on each specimen.…”

Section: ) Inclusion Criteriamentioning

confidence: 99%

“…Infected dentin was removed by hand with 320-grit silicon carbide sanding discs (3M, Sumaré, Brazil) until affected dentin was reached-characterized by tissue resistant to penetration by the probe (SSWhite, Juiz de Fora, Brazil) without applying pressure [15]. 4) Division of experimental groups All samples with carious dentin lesions were randomly allocated (http://www.random.org) across four experimental groups (n = 10/each).…”

Section: ) Cariogenic Challengementioning

confidence: 99%

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Influence of Phosphoric Acid Etching on the Bond Strength of a Universal Adhesive System to Caries-Affected Dentin

Pavanello¹,

Pinheiro²

2018

ABC

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The purpose of this study was to evaluate the influence of acid etching on the bond strength of a universal adhesive system (Single Bond Universal, 3M) to caries-affected dentin. Forty permanent third molars were selected and carious lesions were induced by the microbiological method with S. mutans ATCC25175. Teeth were allocated randomly across four experimental designs (n = 10): PA-I: phosphoric acid etching and application of the adhesive system, followed by immediate microtensile bond strength testing; PA-CC: phosphoric acid etching and application of the adhesive system, followed by microtensile bond strength testing after a 14-day cariogenic challenge; NPA-I: application of the adhesive system without acid etching, followed by immediate bond strength testing and NPA-CC: application of the adhesive system without acid etching followed by bond strength testing after 14-day cariogenic challenge. For microtensile bond strength testing, a restoration with Charisma composite resin was made and each specimen was sectioned with a cross-sectional area of 1 mm 2. Only adhesive and mixed fractures were considered for bond strength calculation. Results were evaluated by the Kruskal-Wallis and Friedman tests. The highest bond strengths were observed in the phosphoric acid etching groups (p < 0.05). Cariogenic challenge did not affect bond strength (p > 0.05). The predominant fracture type was adhesive. We conclude that phosphoric acid increased the bond strength of the Single Bond Universal system to caries-affected dentin, and that cariogenic challenge did not interfere with this bond strength.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: ) Inclusion Criteriamentioning

confidence: 99%

Section: ) Cariogenic Challengementioning

confidence: 99%

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Influence of Phosphoric Acid Etching on the Bond Strength of a Universal Adhesive System to Caries-Affected Dentin

Pavanello¹,

Pinheiro²

2018

ABC

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“…In a previous study Becci et al 25 (2014) compared the bond strength of a GIC with different concentrations of CHX to sound and caries-affected dentin only in the period of 24 hours. Although in both the cited study and the present study, the infected dentin was manually removed using 320-grit silicon carbide abrasive, the authors showed that the condition of the substrate had no influence on the immediate bond strength values.…”

Section: Discussionmentioning

confidence: 99%

Long-term influence of associating an antibacterial agent with GIC on bond strength to caries-affected dentin

et al. 2017

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Aim: To evaluate the bond strength of a GIC associated with chlorhexidine (CHX) to sound and caries-affected dentin, immediately and after six months of storage. Methods: Sixty molars were assigned to two groups of 30 teeth. One had flat dentin surfaces produced and submitted to caries induction to obtain a caries-affected dentin. In the other group dentin was maintained sound. Teeth of each group were randomly reassigned to three subgroups (n=10) according to the concentration of CHX added to the GIC (0%, 1% and 2% by weight). Two specimens (1mm diameter x 1 mm high) of the same material were constructed on each dentin surface. One was submitted to the microshear bond strength (µSBS) test after 24 hours and the other after 6 months of storage in water at 37oC. Failure modes were analyzed under a stereomicroscope. Bond strength data were analyzed by three-way ANOVA followed by Games-Howell tests for multiple comparisons, and failure modes by the Chi-square test (α = 0.05). Results: The µSBS values obtained to sound dentin were higher compared with those to caries-affected dentin (p≤0.001). In sound dentin, the group with 2% CHX showed lower µSBS values compared with 0% and 1% CHX after 24 hours (p=0.005 and p=0.032 respectively). In caries-affected dentin, after 24 hours, µSBS in group with 1% CHX was statistically higher than the values in groups with 2% CHX after 24 hours (p=0.001) and 1% CHX after 6 months (p=0.024). Irrespective of the condition of substrate, comparisons showed no statistically significant differences between the other groups (p≥0.053). Cohesive in material and mixed failures prevailed for all groups. Conclusions: The addition of CHX at concentrations of up to 2% to the GIC did not affect the bond strength of the material to sound and caries-affected dentin in a long-term evaluation.

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Evaluation of the antimicrobial activity and compressive strength of a dental cement modified using plant extract mixture

Singer

Bierbaum

Kehl

et al. 2020

J Mater Sci: Mater Med

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Literature lacks sufficient data regarding addition of natural antibacterial agents to glass ionomer cement (GICs). Hence, the aim of the study was to increase the antimicrobial properties of GICs through its modification with mixture of plant extracts to be evaluated along with an 0.5% chlorohexidine-modified GIC (CHX-GIC) with regard to biological and compressive strength properties. Conventional GIC (freeze-dried version) and CHX were used. Alcoholic extract of Salvadora persica, Olea europaea, and Ficus carcia leaves were prepared using a Soxhlet extractor for 12 h. The plant extract mixture (PE) was added in three different proportions to the water used for preparation of the dental cement (Group 1:1 PE, 2:1 PE, and 1:2 PE). Specimens were then prepared and tested against the unmodified GIC (control) and the 0.5% CHX-GIC. Chemical analysis of the extract mixture was performed using Gas chromatography–mass spectrometry. Antimicrobial activity was evaluated using agar diffusion assay against Micrococcus luteus and Streptoccocus mutans. Compressive strength was evaluated according to ISO 9917-1:2007 using a Zwick testing machine at a crosshead speed of 0.5 mm/min. Antimicrobial activity against Streptoccocus mutans was significantly increased for all the extract-modified materials compared to the unmodified cement, and the highest concentration was comparable to the CHX-GIC mixture. The activity against Micrococcus luteus was also significantly increased, but only for the material with the highest extract concentration, and here the CHX-GIC group showed statistically the highest antimicrobial activity. Compressive strength results revealed that there was no statistically significant difference between the different mixtures and the control except for the highest tested concentration that showed the highest mean values. The plant extracts (PEs) enhanced the antimicrobial activity against S. mutans and also against M. luteus in the higher concentration while compressive strength was improved by addition of the PE at higher concentrations.

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Influence of the addition of chlorhexidine diacetate on bond strength of a high-viscosity glass ionomer cement to sound and artificial caries-affected dentin

Cited by 9 publications

References 19 publications

Influence of Phosphoric Acid Etching on the Bond Strength of a Universal Adhesive System to Caries-Affected Dentin

Influence of Phosphoric Acid Etching on the Bond Strength of a Universal Adhesive System to Caries-Affected Dentin

Long-term influence of associating an antibacterial agent with GIC on bond strength to caries-affected dentin

Evaluation of the antimicrobial activity and compressive strength of a dental cement modified using plant extract mixture

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