Effect of surface protection, staining beverages and aging on the color stability and hardness of recently introduced uncoated glass ionomer restorative material

Abstract Aim: All the restorative material whatsoever introduced till-date have an inherent disadvantage of micro-leakage measurable different grades. The present study comparatively evaluates the micro-leakage of glass ionomer restoration with different surface protection methods. Methodology: 36 premolars were obtained without any cracks or restorations for the study. Teeth were stored in distilled water containing thymol crystals till the beginning of the study. The teeth were randomly divided into 3 groups based on surface protectors used. Group I is GC Fuji Varnish, Group II is vaseline and Group III is G-Coat plus along with GIC restoration. Class V cavities were prepared of dimensions mesio-distal width of 3 mm, occluso-gingival length of 2 mm, and a depth of 1.5 mm on buccal and lingual surfaces with a high-speed hand-piece with air-water spray. Results: Kruskal- Wallis test was applied and Vaseline group showed significantly less micro-leakage compared to G-Coat plus i.e. G-Coat plus exhibited significantly higher microleakage compared to other groups. Conclusion: Evaluation of micro-leakage of glass ionomer cements using various surface protecting agents, Vaseline was considered the best surface protecting agent maintaining the water balance and showing no micro-leakage.

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Effects of Different Pediatric Drugs on the Color Stability of Various Restorative Materials Applicable in Pediatric Dentistry

BioMed Research International ◽

10.1155/2017/9684193 ◽

2017 ◽

Vol 2017 ◽

pp. 1-5

Author(s):

Tamer Tüzüner ◽

Sedanur Turgut ◽

Ozgul Baygin ◽

Nagehan Yilmaz ◽

Elif Bahar Tuna ◽

...

Keyword(s):

Composite Material ◽

Artificial Saliva ◽

Color Stability ◽

Pediatric Dentistry ◽

Restorative Material ◽

Glass Ionomer ◽

Pediatric Drug ◽

Color Changes ◽

Restorative Materials ◽

Material Factor

Background. The chronic recommendation of pediatric drugs could exhibit erosive and cariogenic problems.Objective. To evaluate the effects of different pediatric drugs on the color stability of various restorative materials.Methods. Five specimens (1 mm × 3 mm) were prepared and immersed in ten different pediatric drugs and agitated every 8 hours daily for 2 min up to 1 week. Between immersion periods, the samples were stored in artificial saliva. After 1-week period,ΔE⁎values were calculated. Two-way ANOVA and Fisher’s LSD test were used for statistical analysis at a level ofp<0.05.Results.ΔE⁎values were only significantly influenced by restorative material factorp<0.001and varied in the range of 2.08 and 6.55 units for all drugs/restorative materials. The highestΔE⁎was found in Ferrosanol B-composite(6.55±1.38)and the lowest one was found in Dolven-glass ionomer(2.08±0.40)pairwise. The most prominentΔE⁎value elevations were obtained in composite material compared to the compomer and/or glass ionomers in Macrol, Ferrosanol B, and Ventolin (p<0.001; for all) and also for other drugsp<0.05. Dolven exhibited significantly higher values compared to Augmentinp=0.021, Macrolp=0.018, and Ventolinp=0.013in compomer group.Conclusion. The clinically perceptible color changes for tested composite/pediatric drug pairwise can be more problematic than compomer and glass ionomers in pediatric dentistry.

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Advances in glass-ionomer cements

Journal of Applied Oral Science ◽

10.1590/s1678-77572006000700002 ◽

2006 ◽

Vol 14 (spe) ◽

pp. 3-9 ◽

Cited By ~ 38

Author(s):

Carel Leon Davidson

Keyword(s):

Glass Ionomer Cement ◽

Minimal Invasive ◽

Composite Resins ◽

Restorative Material ◽

Glass Ionomer Cements ◽

Glass Ionomer ◽

Tooth Structure ◽

Ionomer Cement

This article describes the properties, advances and shortcomings of glass-ionomer cement as a restorative material. The adhesion of glass-ionomer to tooth structure is less technique sensitive than composite resins and its quality increases with time. Therefore glass-ionomer might turn out to the more reliable restorative material in minimal invasive dentistry based on adhesive techniques.

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Marginal Leakage of Endodontic Temporary Restorative Materials around Access Cavities Prepared with Pre-Endodontic Composite Build-Up: An In Vitro Study

Materials ◽

10.3390/ma13071700 ◽

2020 ◽

Vol 13 (7) ◽

pp. 1700

Author(s):

Atsushi Kameyama ◽

Aoi Saito ◽

Akiko Haruyama ◽

Tomoaki Komada ◽

Setsuko Sugiyama ◽

...

Keyword(s):

Zinc Oxide ◽

Resin Composite ◽

Glass Ionomer Cement ◽

In Vitro Study ◽

Restorative Material ◽

Glass Ionomer ◽

Zinc Oxide Eugenol ◽

Restorative Materials ◽

Ionomer Cement

This study aimed to examine the marginal seal between various commercial temporary restorative materials and exposed dentin/built-up composite. Sixty bovine incisors were cut above the cemento-enamel junction, and half of the dentin was removed to form a step, which was built up using flowable resin composite. The root canals were irrigated, filled with calcium hydroxide, and sealed using one of six temporary sealing materials (hydraulic temporary restorative material, temporary stopping material, zinc oxide eugenol cement, glass-ionomer cement, auto-cured resin-based temporary restorative material, and light-cured resin-based temporary restorative material) (n = 10 for each material). The samples were thermocycled 500 times and immersed in an aqueous solution of methylene blue. After 2 days, they were cut along the long axis of the tooth and the depth of dye penetration was measured at the dentin side and the built-up composite side. For the margins of the pre-endodontic resin composite build-up, the two resin-based temporary restorative materials showed excellent sealing. Hydraulic temporary restorative material had a moderate sealing effect, but the sealing effect of both zinc oxide eugenol cement and glass-ionomer cement was poorer.

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Effect of surface finishing treatments on the color stability of CAD/CAM materials

The Journal of Advanced Prosthodontics ◽

10.4047/jap.2020.12.3.150 ◽

2020 ◽

Vol 12 (3) ◽

pp. 150

Author(s):

Funda Ozen ◽

Nermin Demirkol ◽

Ozge Parlar Oz

Keyword(s):

Color Stability ◽

Surface Finishing ◽

Cad Cam ◽

Effect Of Surface

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Bioadhesive Curcumin-Mediated Photodynamic Inactivation and Its Potential to Cause Undesirable Effects on Dental and Restorative Surfaces

Pharmaceutics ◽

10.3390/pharmaceutics13091458 ◽

2021 ◽

Vol 13 (9) ◽

pp. 1458

Author(s):

Bárbara Donadon Reina ◽

Carolina Santezi Neto ◽

Patrícia Petromilli Nordi Sasso Garcia ◽

Marlus Chorilli ◽

Giovana Maria Fioramonti Calixto ◽

...

Keyword(s):

Surface Roughness ◽

Liquid Crystal ◽

Tooth Enamel ◽

Dental Enamel ◽

Color Stability ◽

Composite Resins ◽

Photodynamic Inactivation ◽

Restorative Material ◽

Negative Effects ◽

Restorative Materials

Curcumin-mediated Photodynamic Inactivation (PDI) has shown great potential to disinfect specific sites on tooth enamel but may involve contact with restorative materials. Thus, before use in dentistry, it is necessary to investigate whether the PDI protocol causes undesirable changes in the surfaces of aesthetic restorative materials and dental enamel. This study investigated the effect of PDI mediated by curcumin (CUR) in a liquid crystal precursor system on color stability (ΔE), surface roughness (Ra), and microhardness (kgf) of three different composite resins and bovine dental enamel specimens. The microhardness and roughness readings were performed 60 days after the treatments while the color readings were performed immediately, 24, 48, and 72 h, 7, 14, 21, 30, and 60 days after the treatments. Results showed that CUR mediated-PDI does not seem to have the potential to promote any esthetic or mechanical changes to the surface of tooth enamel and can be applied safely in clinical practice. However, the results on color, roughness, and hardness obtained for composite resins show that some negative effects can be produced, depending on the type of restorative material; more experiments must be performed with different formulations and, perhaps, with lower concentrations of CUR.

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THE COMPARISON OF RESIN-BASED COMPOSITES PHYSICAL PROPERTIES BETWEEN BULK-FILL TECHNIQUE AND INCREMENTAL TECHNIQUE

Dentino : Jurnal Kedokteran Gigi ◽

10.20527/dentino.v6i1.10646 ◽

2021 ◽

Vol 6 (1) ◽

pp. 85

Author(s):

Rahmi Khairani Aulia

Keyword(s):

Physical Properties ◽

Composite Resin ◽

Color Stability ◽

Composite Resins ◽

Shrinkage Stress ◽

Restorative Material ◽

Polymerization Shrinkage ◽

Advantages And Disadvantages ◽

Restoration Technique ◽

Restoration Failure

ABSTRACT:Composite resins are currently the most popular restorative material in dentistry. This is due to good aesthetics and maximum conservation ability. Behind these advantages, there are disbenefits of composite resin materials, such as polymerization shrinkage, which can lead to restoration failure. Various attempts have been investigated to reduce the shrinkage incidence of composite resins, one of which is the technique of placing the restorative material into the cavity. The restoration filling technique is recognized as a significant factor in shrinkage stress. By using a special filling technique, the polymerization shrinkage damage stress can be reduced. There are several techniques in performing composite resin fillings, including bulk and incremental techniques. These techniques have their respective advantages and disadvantages. The aim of this literature review was to compare the physical properties of composite resin restorations with bulk filling and incremental techniques. Physical properties that being studied include polymerization shrinkage, stress shrinkage, degree of conversion, bonding strength, water resorption, color stability, and temperature increase. Comparing the two techniques, composite resin with incremental filling technique has superior physical properties compared to bulk technique. From the comparison of the two techniques, the composite resin with incremental filling technique has superior physical properties compared to the bulk technique, especially in higher conversion which causes lower shrinkage stress. This situation makes the incremental technique provide better bond strength, water resorption, color stability, and lower temperature rise.Keywords: Bulk, Composite Resin, Incremental, Physical Properties, Restoration, Restoration Technique

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