scholarly journals Microleakage under orthodontic bands cemented with nano-hydroxyapatite-modified glass ionomer: An in vivo study

2013 ◽  
Vol 83 (6) ◽  
pp. 981-986 ◽  
Author(s):  
Enas T. Enan ◽  
Shaza M. Hammad
Keyword(s):  
Statistical Evaluation ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Significance Level ◽  
Dye Penetration ◽  
Significant Difference ◽  
Orthodontic Patients ◽  
Positive Effect ◽  
Ionomer Cement

ABSTRACT Objectives: To estimate the in vivo effect of nano-hydroxyapatite (HA) modification of banding glass-ionomer cement on microleakage under orthodontic bands. Materials and Methods: Eighty noncarious premolars scheduled for extraction in 20 orthodontic patients were randomly divided into four groups. Grouping was based on the ratio of nano-HA (0%, 5%, 10%, 15% by weight) added to the luting glass-ionomer cement (GIC) Ketac-Cem, which was used for cementation of prefabricated micro-etched orthodontic bands. Dye penetration method was used for microleakage evaluation at the cement-band and cement-enamel interfaces. Statistical evaluation was performed with a Kruskal-Wallis test and a Mann-Whitney U-test, and a Bonferroni-adjusted significance level was calculated. Results: Bands cemented with conventional GIC showed the highest microleakage scores in comparison to those cemented with nano-HA-modified GIC. No significant difference was found between teeth banded with 10% and 15% modified GIC. Conclusions: Modification of the banding GIC with 15% nano-HA revealed a positive effect on reducing microleakage around orthodontic bands.

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.

scholarly journals Comparative Analysis of Postcementation Hypersensitivity with Glass Ionomer Cement and a Resin Cement: An in vivo Study

2012 ◽  
Vol 13 (3) ◽  
pp. 327-331 ◽  
Author(s):  
Deepak Mehta ◽  
Rohit M Shetty ◽  
Sonia Bhat ◽  
G Srivatsa ◽  
Y Bharath Shetty
Keyword(s):  
Glass Ionomer Cement ◽  
Resin Cement ◽  
Glass Ionomer ◽  
Adhesive Resin ◽  
Significant Difference ◽  
Abutment Teeth ◽  
Adhesive Resin Cement ◽  
Postoperative Sensitivity ◽  
Ionomer Cement

ABSTRACT Aim The aim of this clinical study was to compare the postoperative sensitivity of abutment teeth restored with full coverage restorations retained with either conventional glassionomer cement (GIC) or resin cement. Materials and methods Fifty patients received full-coverage restorations on vital abutment teeth. Of these, 25 were cemented with GIC (GC Luting and Lining cement) and the other 25 using an adhesive resin cement (Smartcem 2). A randomized single blind study was undertaken for acquiring and evaluating the data. The teeth were examined before cementation, after cementation, 24 hours postcementation and 7 days postcementation. A visual analog scale was used to help the patient rate hypersensitivity. Results The statistical analysis of the result was done using students paired t-test. No statistically significant difference between Smartcem 2 and GIC was observed, when tested immediately and 24 hours after cementation. Statistically significant difference was seen between Smartcem 2 and GIC when tested 7 days postcementation with a significance level of 0.05. Higher postoperative sensitivity was seen with GIC when compared to resin cement. Conclusion In this study, the incidence of postoperative hypersensitivity after cementation of full-crown restorations with GIC and resin cement was similar when tested immediately. However, 7 days postcementation, abutments with GIC showed higher response compared to resin cement. Clinical significance A self-adhesive resin cement can be the material of choice for luting if presence of postoperative sensitivity is of prime consideration. In case GIC is being used, patient should be informed about the presence of sensitivity for a more prolonged period than with resin cement. How to cite this article Shetty RM, Bhat S, Mehta D, Srivatsa G, Shetty YB. Comparative Analysis of Postcementation Hypersensitivity with Glass Ionomer Cement and a Resin Cement: An in vivo Study. J Contemp Dent Pract 2012;13(3): 327-331.

scholarly journals Effect of Enamel Etching on Tensile Bond Strength of Brackets Bonded In Vivo with a Resin-reinforced Glass Ionomer Cement

2007 ◽  
Vol 77 (1) ◽  
pp. 113-116 ◽  
Author(s):  
Gabriella Rosenbach ◽  
Julio Pedrae Cal-Neto ◽  
Silvio Rosan Oliveira ◽  
Orlando Chevitarese ◽  
Marco Antonio Almeida
Keyword(s):  
Bond Strength ◽  
Testing Machine ◽  
Glass Ionomer Cement ◽  
Tensile Bond Strength ◽  
Glass Ionomer ◽  
Significant Difference ◽  
Group 2 ◽  
Ionomer Cement ◽  
Group 1

Abstract Objective: To evaluate the influence of enamel etching on tensile bond strength of orthodontic brackets bonded with resin-reinforced glass ionomer cement. Materials and Methods: The sample group consisted of 15 patients who had indications for extraction of four premolars for orthodontic reasons, equally divided into two different groups according to bracket and enamel preparation. Brackets were bonded in vivo, by the same operator, using a split mouth random technique: Group 1 (control), phosphoric acid + Fuji Ortho LC; Group 2, Fuji Ortho LC without acid conditioning. The teeth were extracted after 4 weeks using elevators. An Instron Universal Testing Machine was used to apply a tensile force directly to the enamel-bracket interface at a speed of 0.5 mm/min. The groups were compared using a Mann-Whitney U-test and Weibull analysis. Results: Mean results and standard deviations (in MPa) for the groups were: Group 1, 6.26 (3.21), Group 2, 6.52 (2.73). No significant difference was observed in the bond strengths of the two groups evaluated (P = .599). Conclusions: Fuji Ortho LC showed adequate shear bond strength and may be suitable for clinical use.

scholarly journals An In Vitro Stereomicroscopic Evaluation of Bioactivity between Neo MTA Plus, Pro Root MTA, BIODENTINE & Glass Ionomer Cement Using Dye Penetration Method

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3159
Author(s):  
Mohmed Isaqali Karobari ◽  
Syed Nahid Basheer ◽  
Fazlur Rahman Sayed ◽  
Sufiyan Shaikh ◽  
Muhammad Atif Saleem Agwan ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Root Canal ◽  
Glass Ionomer Cement ◽  
Filling Material ◽  
Glass Ionomer ◽  
Dye Penetration ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Ionomer Cement

The ideal root end filling material should form a tight seal in the root canal by adhering to the cavity walls. Several materials have been used for root end filling. The present study aims to find out and compare the bioactivity of Neo MTA Plus, Pro Root MTA White, BIODENTINE & glass ionomer cement as root end filling materials using 1% methylene blue as tracer. Materials and methods: 80 extracted human permanent maxillary anterior teeth were used in the study. They were divided into four groups. Specimens were sectioned transversely in the cervical area to separate the crown from the root. The root canal was obturated with gutta percha and zinc oxide eugenol sealers. Thereafter, each sample was resected apically by removing 3 mm of the apex and filled with different materials. Samples were kept in buffering solution at 37 °C until the recommended evaluation periods. The specimens were then suspended in 1% methylene blue for 24 h, prior to the analysis. The teeth were then sectioned, and dye penetration was examined, photographed, and evaluated under a stereomicroscope. Results: Vertical dye penetration showed significant differences across different groups. The minimum dye penetration was seen in Neo MTA plus followed by BIODENTINE, Pro Root MTA and maximum in GIC. There was no significant difference in dye penetration between Neo MTA plus and BIODENTINE both at fifteen days and one-month intervals. Conclusion: The present study suggests Neo MTA plus and BIODENTINE should be the preferred material for root end filling.

scholarly journals Comparison of Antibacterial Activity of Glass-ionomer Cement and Amalgam in Class Two Restorations by Streptococcus mutans Count Analysis at Fixed Intervals: An in vivo Study

2013 ◽  
Vol 14 (3) ◽  
pp. 381-386 ◽  
Author(s):  
Veeresh S Tegginmani ◽  
Beenarani Goel ◽  
Virendra Uppin ◽  
LS Vijay Kumar ◽  
Abhinav Nainani
Keyword(s):  
Antibacterial Activity ◽  
Streptococcus Mutans ◽  
Glass Ionomer Cement ◽  
Fluoride Release ◽  
Glass Ionomer ◽  
Fluid Identification ◽  
Carious Lesions ◽  
Significant Difference ◽  
Ionomer Cement

ABSTRACT Aim The purpose of the present study was to determine the influence of glass ionomer cement and amalgam restoration on the level of Streptococcus mutans in the interproximal plaque at periodic intervals and also to compare these values. Materials and methods Seventeen adult patients having two proximal carious lesions on any quadrant of the jaw (either opposing or contralateral) were selected for this study. Carious lesions were diagnosed clinically and from bitewing radiographs. Of the two carious lesions, one was restored with glass ionomer cermet cement and another with amalgam. Plaque samples were collected from interproximal areas before and at 1 month and 3 months post-treatment in a test tube containing 5 ml of modified Stuart's liquid transport fluid. Identification of organisms in the colony was done after Gram staining. Results Comparison of values before restoration and after restoration at 1 month interval showed a statistically significant decrease (p < 0.001). Similarly, comparison of values before and after restorations at 3 months also showed statistically significant decrease (p < 0.02). But comparison of restorations of 1 and 3 months intervals showed no statistical significant difference (p > 0.05). Conclusion Glass ionomer restorations have definite advantage over the amalgam, as the tunnel preparation is more conservative and fluoride release from the glass ionomer inhibits the growth of S. mutans in the plaque. Clinical significance Glass ionomer cement should be preferred over amalgam in conservatively prepared restorations as it reduces the microbial activities due to fluoride release. How to cite this article Tegginmani VS, Goel B, Uppin V, Horatti P, Kumar LSV, Nainani A. Comparison of Antibacterial Activity of Glass-ionomer Cement and Amalgam in Class Two Restorations by Streptococcus mutans Count Analysis at Fixed Intervals: An in vivo Study. J Contemp Dent Pract 2013;14(3):381-386.

COMPARATIVE EVALUATION OF RESTORATIVE TREATMENTS ON NON-CARIOUS CERVICAL LESIONS OF COMPOSITE AND GLASS IONOMER CEMENT

2020 ◽  
pp. 38-45
Author(s):  
Duong Nguyen Thi Thuy ◽  
Huong Nguyen Thi Kim
Keyword(s):  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Cervical Lesions ◽  
Composite Restorations ◽  
Significant Difference ◽  
Composite Glass ◽  
Group 2 ◽  
Ionomer Cement ◽  
Group 1

Background: Composite and Glass ionomer cement (GIC) are common restorative materials of non carious cervical lesions (NCCLs), which effects are controverisial. The aim of the present study was to compare the result of restorations on NCCLs between Composite and GIC. Materials and Methods: follow-up clinical trial with split-mouth design. Thirty-six patients with 96 NCCLs were divided into 2 groups (n=48/group): Group 1 restored by Composite, Group 2 restored by GIC. The restorations were evaluated at baseline, 1 and 3 months for pulpal sensitivity, restoration morphology and overall success grade. Results: GIC restorations gained 100% Good results for all parameters at 3 time points. Composite showed 87.5%, 93.8% and 97.9% Good results at baseline, 1 and 3 months, sequentially. At 3 weeks recall, 1 Composite restorations (2.1%) showed Moderate results of Retention and 2 Composite restorations (4.2%) changed colour. Conclusions: There was no statistically significant difference seen among the three groups for 3 parameters. Key words: non-carious cervical lesion, Composite, Glass ionomer cement

scholarly journals In vitro and in vivo evaluations of glass-ionomer cement containing chlorhexidine for Atraumatic Restorative Treatment

2017 ◽  
Vol 25 (5) ◽  
pp. 541-550 ◽  
Author(s):  
Cristiane Duque ◽  
Kelly Limi Aida ◽  
Jesse Augusto Pereira ◽  
Gláucia Schuindt Teixeira ◽  
Angela Scarparo Caldo-Teixeira ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Atraumatic Restorative Treatment ◽  
Glass Ionomer ◽  
Restorative Treatment ◽  
Ionomer Cement

Fluoride uptake in human dentine from glass-ionomer cement in vivo

1993 ◽  
Vol 38 (12) ◽  
pp. 1093-1098 ◽  
Author(s):  
M. Murai ◽  
M. Ikeda ◽  
T. Yanagihara ◽  
G. Hara ◽  
K. Kato ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Fluoride Uptake ◽  
Human Dentine ◽  
Ionomer Cement

scholarly journals Microleakage of glass ionomer cement restorations

2009 ◽  
Vol 56 (2) ◽  
pp. 78-85 ◽  
Author(s):  
Lado Davidovic ◽  
Slavoljub Tomic ◽  
Mihael Stanojevic ◽  
Slavoljub Zivkovic
Keyword(s):  
Glass Ionomer Cement ◽  
Sem Analysis ◽  
Glass Ionomer ◽  
Penetration Test ◽  
Dental Tissue ◽  
Class V ◽  
Oral Side ◽  
Dye Penetration ◽  
Hard Dental Tissue ◽  
Ionomer Cement

Introduction. A lack of appropriate adhesiveness is one of the biggest problems in the restorative dentistry today and the main cause of the microleakage between restorations and hard dental tissue. The aim of this study was to assess the adhesiveness of two different glass ionomer cement restorations class V on the hard dental tissue using the SEM analysis and dye penetration test. Material and methods. The study included 80 extracted teeth for orthodontic reasons (premolars and molars) in both genders and different age. On the vestibular and oral side of the teeth, adhesive preparations class V were done (size 3?2?2 mm). On the vestibular preparation, GC Fuji II was applicated and GC Fuji II LC-improved on the oral side. The quality of the adhesiveness between restorations and hard dental tissue was evaluated using the SEM analysis and dye penetration test (0.5% basic fuxsin). Linear penetration of the dye was observed using 10 times magnification. Results. The results showed that microleakage was presented with both materials but a ratio was less with Fuji II LC compared with Fuji II. Also, the microleakage was less on the occlusal parts of the restorations than on the gingival, with both materials. Microleakage was noticed in 93.44% teeth with Fuji II GJC restorations with index of microleakage of 148 on all edges. Fuji II LC GJC restorations showed microleakage in 68.4% teeth with index of microleakage 75 on all edges. The SEM analysis showed that both glass ionomer materials had better adhesiveness to the enamel than to the dentin. The average gap length between Fuji II LC and dentin was 9 ?m and Fuji II 17 ?m, respectively. Conclusion. Better adhesiveness to the hard dental tissue was achieved with materials of the newer generations, resin modificated glas ionomer cements.

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