scholarly journals In vitro evaluation of marginal microleakage of class II bonded amalgam restorations using a dentin adhesive and a glass ionomer cement

1999 ◽  
Vol 13 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Edmêr Silvestre PEREIRA JÚNIOR ◽  
Maria Francisca Thereza Borro BIJELLA ◽  
Salete Moura Bonifácio da SILVA ◽  
Bernardo Gonzales VONO
Keyword(s):  
Tap Water ◽  
Glass Ionomer Cement ◽  
Class Ii ◽  
Control Group ◽  
Distilled Water ◽  
Glass Ionomer ◽  
Bonding System ◽  
Amalgam Restorations ◽  
Ionomer Cement

The purpose of this study was to evaluate in vitro the effectiveness of the dentin bonding system All Bond 2 associated with Resinomer (Bisco), and of Vitrebond (3M) glass ionomer cement fresh-mixed, both used in the bonded amalgam technique, to prevent short-term microleakage in class II cavities restored with Dispersalloy (Dentsply), an admixed alloy. The control group utilized the Copalite (Cooley & Cooley) varnish. Forty five sound human extracted premolars were used. Class II cavity preparations were made on the mesial and distal surfaces of non-carious teeth, with the gingival margins wall established 1mm under the cementum enamel junction. The specimens were divided randomly into three groups with thirty cavities in each group. The teeth were stored in distilled water for 24 hours and were thermocyled through 500 cycles in distilled water between 5°C and 55°C with a dwell time of 15 seconds. The apices and roots of the teeth were sealed. They were placed in a 37°C bath of 0.5% basic fuchsin dye for 24 hours. The teeth were washed in tap water for 24 hours and cut. The microleakage scores per restoration were averaged and three values of various test groups were subjected to the Kruskal-Wallis and Dunn test at a significance level of p < 0.05. The All Bond 2/Resinomer showed significantly less microleakage at gingival margins than the Vitrebond and Copalite lined to amalgam restorations. The Vitrebond fresh mixed, lined to amalgam restorations, showed significantly less microleakage than the Copalite lined to amalgam restorations.

scholarly journals In vitro quantitative evaluation of marginal microleakage in class II restorations confected with a glass ionomer cement and two composite resins

2001 ◽  
Vol 15 (4) ◽  
pp. 277-282 ◽  
Author(s):  
Maria Fernanda Borro BIJELLA ◽  
Maria Francisca Thereza Borro BIJELLA ◽  
Salete Moura Bonifácio da SILVA
Keyword(s):  
Glass Ionomer Cement ◽  
Class Ii ◽  
Deionized Water ◽  
Composite Resins ◽  
Glass Ionomer ◽  
Dye Penetration ◽  
Significant Difference ◽  
Distal Direction ◽  
Ionomer Cement

This study evaluated, in vitro, marginal microleakage in class II restorations confected with the glass ionomer cement Vitremer and with the composite resins Ariston pHc and P-60. The aims of the study were to assess the effect of thermocycling on those materials and to evaluate two methods utilized in the analysis of dye penetration. Sixty premolars divided in three groups were utilized; the teeth had proximal cavities whose cervical walls were located 1 mm below the cementoenamel junction. Half of the test specimens from each group underwent thermocycling; the other half remained in deionized water, at 37ºC. The specimens were immersed, for 24 hours, in a basic 0.5% fuchsin solution at 37ºC. For the analysis of microleakage, the specimens were sectioned in a mesio-distal direction, and the observation was carried out with the software Imagetools. The results were evaluated through the 2-way ANOVA and through the Tukey’s test. All groups presented marginal microleakage. The smallest values were obtained with Vitremer, followed by those obtained with the composite resins P-60 and Ariston pHc. There was no statistically significant difference caused by thermocycling, and the method of maximum infiltration was the best for detecting the extension of microleakage.

In Vitro Effect of Simulated Tooth Brushing and Children’s Mouth Rinses on Physical Properties of Glass Ionomer Cement

2020 ◽  
Vol 44 (5) ◽  
pp. 342-347
Author(s):  
Natyla ML Silva ◽  
Victor G Costa ◽  
Letícia M Gonçalves ◽  
Isabella A Gomes ◽  
Marco Aurélio B Paschoal
Keyword(s):  
Surface Roughness ◽  
Glass Ionomer Cement ◽  
Tooth Brushing ◽  
Control Group ◽  
Glass Ionomer ◽  
Intergroup Comparison ◽  
Vitro Effect ◽  
Dependent Samples ◽  
Ionomer Cement

Objective: The present study investigated the erosive potential of children’s mouthrinses on glass ionomer cement (GIC) samples after simulated toothbrushing. Study design: Forty round-shaped samples of GIC were divided into 3 groups: G1- cetylpyridinium chloride, G2- xylitol and triclosan and G3–Malva sylvestris and xylitol and G4–distilled water as a control group. Prior to the main tests, the samples were submitted to the surface roughness measurement (Ra) and weight analysis (W). Afterward, they were brushed twice day (2× / day) for 15 days and immersed in mouthrinses after the last daily brushing. The final surface roughness (R2) and weight (W2) were determined after completing the tooth brushing-mouth rinsing cycles and the real increase in roughness (ΔRa) and real weight loss (ΔW) were calculated. In addition, stereoscopic images taken at 30× magnification. The data was analyzed by one-way ANOVA and Tukey-test post hoc tests for intergroup comparison and the T-test for dependent samples (α = 0.05). Results: Only group G2 showed increased in roughness ΔRa (1.53 ± 0.94) whereas ΔW values were not significant. However, evident cracks and voids were verified for all tested children’s rinses. Conclusion: Thus, children’s mouthrinse containing xylitol / triclosan increased the GIC roughness, especially when associated with brushing.

scholarly journals Comparison of Shear Bond Strength of Resin Reinforced Chemical Cure Glass Ionomer, Conventional Chemical Cure Glass Ionomer and Chemical Cure Composite Resin in Direct Bonding Systems: An in vitro Study

2013 ◽  
Vol 14 (1) ◽  
pp. 21-25 ◽  
Author(s):  
T Praveen Kumar Reddy ◽  
Kolasani Srinivasa Rao ◽  
Garlapati Yugandhar ◽  
B Sunil Kumar ◽  
SN Chandrasekhar Reddy ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Glass Ionomer Cement ◽  
Composite Resins ◽  
Glass Ionomer ◽  
Bonding System ◽  
Bonding Systems ◽  
Ionomer Cement

ABSTRACT The acid pretreatment and use of composite resins as the bonding medium has disadvantages like scratching and loss of surface enamel, decalcification, etc. To overcome disadvantages of composite resins, glass ionomers and its modifications are being used for bonding. The study was conducted to evaluate the efficiency of resin reinforced glass ionomer as a direct bonding system with conventional glass ionomer cement and composite resin. The study showed that shear bond strength of composite resin has the higher value than both resin reinforced glass ionomer and conventional glass ionomer cement in both 1 and 24 hours duration and it increased from 1 to 24 hours in all groups. The shear bond strength of resin reinforced glass ionomer cement was higher than the conventional glass ionomer cement in both 1 and 24 hours duration. Conditioning with polyacrylic acid improved the bond strength of resin reinforced glass ionomer cement significantly but not statistically significant in the case of conventional glass ionomer cement. How to cite this article Rao KS, Reddy TPK, Yugandhar G, Kumar BS, Reddy SNC, Babu DA. Comparison of Shear Bond Strength of Resin Reinforced Chemical Cure Glass Ionomer, Conventional Chemical Cure Glass Ionomer and Chemical Cure Composite Resin in Direct Bonding Systems: An in vitro Study. J Contemp Dent Pract 2013;14(1):21-25.

Does Addition of Propolis to Glass Ionomer Cement Alter its Physicomechanical Properties? An in Vitro Study

2016 ◽  
Vol 40 (5) ◽  
pp. 400-403 ◽  
Author(s):  
P Subramaniam ◽  
KL Girish Babu ◽  
G Neeraja ◽  
S Pillai
Keyword(s):  
Compressive Strength ◽  
Testing Machine ◽  
Glass Ionomer Cement ◽  
In Vitro Study ◽  
Physicomechanical Properties ◽  
Control Group ◽  
Glass Ionomer ◽  
Experimental Group ◽  
Ionomer Cement

Propolis is a natural resinous substance produced by honey bees. The antimicrobial effects of glass ionomer cement have been shown to improve with the addition of propolis; however its effect on the physicomechanical properties of the cement is not known. Aim: The purpose of this study was to evaluate the compressive strength and solubility of conventional restorative glass ionomer cement following the addition of propolis. Study design: Twenty half cylindrical samples were prepared with conventional restorative glass ionomer cement formed the control group. Another twenty samples were prepared with propolis added to conventional restorative glass ionomer cement formed the experimental group. The compressive strength was assessed using universal testing machine. To assess solubility, the samples were immersed in deionised water at room temperature, for 7 days. The solubility was measured as a difference in the weight of the sample; prior to immersion and following immersion at the end of each day. Results: The control group had a significantly higher mean compressive strength of 146.26 Mpa as compared to the experimental group (135.06 Mpa). The solubility between the groups was significant. Conclusion: In comparison to the control group, incorporation of propolis to conventional restorative glass ionomer cement decreased the compressive strength significantly. The solubility of the cement in the experimental group increased significantly over 7day period as compared to the control group.

Antibacterial Activity of Triclosan Incorporated Glass Ionomer Cements – An in vitro Pilot Study

2010 ◽  
Vol 35 (2) ◽  
pp. 157-161 ◽  
Author(s):  
Sajad Sainulabdeen ◽  
Prasanna Neelakantan ◽  
Sindhu Ramesh ◽  
CV Subbarao
Keyword(s):  
Antibacterial Activity ◽  
Pilot Study ◽  
Glass Ionomer Cement ◽  
Diffusion Method ◽  
Control Group ◽  
Glass Ionomer ◽  
Group I ◽  
Significant Difference ◽  
Ionomer Cement

Objectives: The aim of this pilot study was to evaluate the antibacterial activity of glass ionomer cement impregnated with different concentrations (0.5%, 1.25% and 2.5%) of a non releasing bactericide –Triclosan (TC) against two common cariogenic bacteria – Lactobacillus acidophilus and Streptococcus mutans; and to compare Triclosan incorporated GIC with chlorhexidine (CHX) incorporated GIC (2.5%)in terms of antibacterial activity. Methods: Chlorhexidine or Triclosan were added to glass ionomer cement powder to achieve 2.5% CHX – GIC (positive control – Group II), 0.5%, 1.25% and 2.5% TC-GIC (experimental groups III, IV and V respectively) formulations. Restorative glass ionomer cement (Fuji IX GC –Group I) served as negative control. The powder and liquid were mixed and inserted into the wells punched in agar plates (10mm × 4mm). The agar diffusion method was used to determine the antibacterial activity of the cements after 1, 7 and 30 days. Mean values were compared between different study groups using One-way ANOVA and Tukey's HSD procedure at a significance level of 5%. Results: Triclosan incorporated GIC was more effective against L.acidophilus and S.mutans than Chlorhexidine incorporated GIC. Triclosan at a concentration of 2.5% was more effective than at lower concentrations. At all time periods studied, the maximum zone of inhibition against L.acidophilus was produced by Group V. Against S.mutans, on days 1,7 and 30, there was no significant difference between Groups II and IV (p&gt;0.05), while the other groups showed significant differences. Conclusion: The use of triclosan as an antibacterial additive in GIC holds promise and further clinical research is needed in this direction.

scholarly journals In vitro evaluation of the marginal microleakage of amalgam restorations associated with dentin adhesive, glass ionomer cement and cavity varnish by means of different evaluation methods

2005 ◽  
Vol 13 (1) ◽  
pp. 10-14
Author(s):  
Adriano Tomio Hoshi ◽  
Salete Moura Bonifácio da Silva ◽  
Aymar Pavarini
Keyword(s):  
Glass Ionomer Cement ◽  
In Vitro Study ◽  
Evaluation Methods ◽  
Single Line ◽  
Glass Ionomer ◽  
Significant Difference ◽  
Amalgam Restorations ◽  
Ionomer Cement ◽  
Dentin Adhesive

This in vitro study evaluated the marginal microleakage of amalgam restorations associated with the cavity varnish Copalite - Cooley & Cooley (GI-CP), dentin adhesive OptiBond Solo - Kerr (GII-OS) and the glass ionomer cement Vitremer - 3M (GIII-VT). Forty-five premolars were employed, which were submitted to independent class II preparations at the mesial and distal aspects comprising the marginal ridges and were restored with Dispersalloy - Dentsply. Afterwards, the teeth were thermocycled and stored in 0.5% basic fuchsine for 24 hours. The evaluations were conducted on a light microscope with 150x magnification and on the Sigma Scan software with employment of a single line and segmented lines. Data analysis allowed to establish that none of the materials was able to eliminate the marginal microleakage, having the GI - CP presented greater and statistically significant values in relation to the other groups in all evaluation methods (p<0.05). The lowest values were displayed by the GIII-VT, yet with no statistically significant difference when compared to GII-OS, except for the evaluation at the Sigma Scan in single line. The three evaluation methods showed a strong positive relationship to each other.

Two-Year Clinical Evaluation of Three Restorative Materials in Primary Molars

2009 ◽  
Vol 34 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Maha Daou ◽  
Bruno Tavernier ◽  
Jean-Marc Meyer
Keyword(s):  
Clinical Performance ◽  
Glass Ionomer Cement ◽  
Class Ii ◽  
Class I ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
High Caries Risk ◽  
Resin Modified Glass Ionomer ◽  
Amalgam Restorations ◽  
Ionomer Cement

A variety of alternatives to amalgam are now available for use in Class I and Class II restorations in primary teeth, including glass ionomer cements, compomers and resin modified glass ionomer cements(RMGIC). Objectives: This study evaluated the two-year clinical performance of three restorative dental materials: A resin modified glass ionomer cement (Fuji IILC), a compomer (Dyract AP) and a high viscosity glass ionomer cement (Fuji IX), in primary molars of pediatric patients with high caries risk activity and compared these results to those reported for amalgam restorations. Study design: One hundred and forty nine Class I and Class II cavities in 45 patients aged 6 to 8 years were restored with compomer, glass ionomer cements and amalgam. Restorations were evaluated according to modified Ryge criteria by two examiners at baseline, and after 6, 12, 18 and 24 months of oral function. The data was submitted to statistical analysis (binomial and hyper geometric tests, p&lt;0.05). Results: Two-year recall rate was 62.42%. Class I performed better than class II restorations. The difference in marginal discoloration between compomer and amalgam restorations was statistically significant (p=0.014). No other significant differences were found between GIC, compomer and amalgam restorations. The clinical performance of the three restorative materials compared to amalgam in Class I and Class II cavities at two-year recall was acceptable.Conclusions: The results, even in a population with high caries risk activity, suggest that these materials are suitable alternatives to amalgam in Class I and Class II restorations in primary teeth.

scholarly journals The Effect of Three Dentinal Sealers on Retention of Crowns cemented with Resin-modified Glass Ionomer Cement: An in vitro Study

2015 ◽  
Vol 6 (1) ◽  
pp. 10-15
Author(s):  
Ashish R Jain ◽  
R Pradeep ◽  
Sashi Deepth Reddy Janapala ◽  
P Sesha Reddy
Keyword(s):  
Bond Strength ◽  
Glass Ionomer Cement ◽  
T Test ◽  
Control Group ◽  
P Value ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Desensitizing Agents ◽  
Ionomer Cement

ABSTRACT Background Dentinal sealers (desensitizing agents) are used to protect the pulp from possible injurious effects after tooth preparation and also prevent the penetration of dentinal tubules by bacteria and their products which are currently thought to cause most of the pulpal inflammation under the crowns. Aim The purpose of this study is to determine the efficacy of effect of three different desensitizing agents on retention of crowns cemented with resin-modified glass ionomer cement. Materials and methods Forty freshly extracted maxillary first premolars were notched for retention and the teeth specimens were mounted in autopolymerising resin. The axial height of all the specimens was 4 mm with a 20° angle of convergence. Impressions of the prepared teeth were made, later waxed invested and casted. Thirty teeth were coated with three different desensitizing agents were used in this study: Cavity varnish (Namuvar, Deepti Dental Products), Glutaraldehyde (Gluma- Heraeus Kulzer), Resin (AdheSE, Ivoclar Vivadent). Ten teeth were not coated with desensitizing agents to act as control group. Independent T test used to compare the mean values between groups. Results Tensile strength for average surface area of the groups I, II, III and IV are 0.3759, 0.2375, 0.2411, 0.2348 respectively. The t-test shows ‘p’-value is statistically not significant (p < 0.05) for groups II and III, where as in group IV ‘p’-value is statistically significant (p < 0.01). Conclusion The use of AdheSE/resin-based dentinal sealer showed increase in bond strength of the crowns luted with resin-modified glass ionomer cement when compared with control group. This study advocates the use of resin-based sealer or a glutaraldehyde-based sealer before cementation of the crowns. The cavity varnish, however, reduces the bond strength and is not acceptable. How to cite this article Janapala SDR, Reddy PS, Jain AR, Pradeep R. The Effect of Three Dentinal Sealers on Retention of Crowns cemented with Resin-modified Glass Ionomer Cement: An in vitro Study. World J Dent 2015;6(1):10-15.

scholarly journals Microleakage in bonded amalgam restorations using different adhesive materials

2004 ◽  
Vol 15 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Maximiliano Sérgio Cenci ◽  
Evandro Piva ◽  
Fernando Potrich ◽  
Elenita Formolo ◽  
Flávio Fernando Demarco ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Adhesive System ◽  
Control Group ◽  
Blue Dye ◽  
Glass Ionomer ◽  
Resin Cements ◽  
Resin Modified Glass Ionomer ◽  
Amalgam Restorations ◽  
Ionomer Cement ◽  
Adhesive Materials

The aim of this study was to verify the ability of different adhesive materials to prevent microleakage in bonded amalgam restorations. Standard cavities were prepared in both buccal and lingual surfaces of 35 bovine incisors. The gingival wall was located in cementum/dentin and the occlusal wall in enamel. Teeth (n=35) were divided into 5 groups, according to material employed (one glass-ionomer cement, two resin cements, one adhesive system, and Copalex varnish as a control). Following restoration, the teeth were submitted to thermal cycling. The teeth were subsequently immersed in methylene blue dye and sectioned to allow assessment of microleakage. Non-parametric statistical analysis indicated that all materials demonstrated less leakage than the control group (p<0.01). No leakage was found using the resin-modified glass-ionomer cement, which was significantly different from the other adhesive materials (p<0.05). Leakage in enamel was lower than in cementum/dentin margins. It was concluded that bonded amalgam was an effective technique, since all materials prevented microleakage in enamel and cementum/dentin, when compared to the control group, except Panavia in cementum/dentin margins.

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