Does Pigment Incorporation into Regular Composite Resins for Posterior Buildups Alter Their Bond Strength?

Abstract Posterior build-ups are auxiliary devices to orthodontic treatment which are made with resin-based or glass ionomer composites. Their removal requires care to protect the tooth surface, therefore, pigmented materials are preferred for a better visualization. This study proposed a pigmentation experimental technique of a regular composite resin, evaluating the microshear bond strength test (µ-SBT) of this experimental pigmented resin and comparing with a blue-colored polyacid-modified composite resin, used for posterior buildups. Forty-eight buccal and lingual surfaces of human teeth were used and randomly divided into 4 groups (n=12). The groups were divided into: C (control), regular composite resin; P, regular composite resin pigmented; UBL, Ultra Band Lok™; OB, Ortho Bite™. The composites were bonded using a matrix to obtain microcylinders and prepared for each experimental groups. The samples were then stored in distilled water for 24h at 37°C followed by a µ-SBT. The types of bond failures were evaluated using a stereoscopic magnifying glass (10×). The data were analyzed by ANOVA with Fisher post hoc and Dunnett´s test. Means of µ-SBT± standard deviation (MPa) were: C (39.98a±13.0), P (40.09a± 14.3); UBL (33.26ab±8.6); OB (28.70b±5.5). The most prevalent type of failure was adhesive (80.4%). Further, was not observed a statistically significant correlation between the bond strength values and failure patterns. The pigmentation of a commercially available resin did not alter the µ-SBT and exhibited similar adhesiveness as a polyacid-modified composite resin.

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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

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1263 ◽

2013 ◽

Vol 14 (1) ◽

pp. 21-25 ◽

Cited By ~ 1

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.

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An in vitro Study of the Bond Strength of a Glass Ionomer Cement in the Direct Bonding of Orthodontic Brackets

British Journal of Orthodontics ◽

10.1179/bjo.15.4.247 ◽

1988 ◽

Vol 15 (4) ◽

pp. 247-253 ◽

Cited By ~ 56

Author(s):

P. A Cook ◽

C. C. Youngson

Keyword(s):

Phosphoric Acid ◽

Bond Strength ◽

Composite Resin ◽

Glass Ionomer Cement ◽

In Vitro Study ◽

Tooth Surface ◽

Glass Ionomer ◽

Pre Treatment ◽

Ionomer Cement

The shear/peel bond strength of a ‘no-mix’ composite orthodontic bonding resin was compared in vitro with that of a glass ionomer cement. The effect of pre-treatment of the enamel, with either phosphoric acid or polyacrylic acid, prior to using the glass ionomer cement was also assessed. The composite resin had a significantly higher bond strength than the glass ionomer cement. Simple prophylaxis and drying of the enamel achieved the best results when using the glass ionomer cement, whilst etching the tooth surface with phosphoric acid produced a significantly poorer bond to the enamel. Investigation of the site of failure showed the composite resin bonded very well to the tooth and less well to the bracket, whilst the glass ionomer adhered significantly better to the bracket base than to the tooth surface.

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Evaluation of Microshear Bond Strength of Light and Chemically-Cured Composite Resins to Light-Cured Glass-Ionomer Using Various Bonding Systems

Avicenna Journal of Dental Research ◽

10.34172/ajdr.2018.22 ◽

2018 ◽

Vol 10 (3) ◽

pp. 107-113

Author(s):

Shahin Kasraie ◽

Bahareh Asgartooran ◽

Mohadese Shokripour

Keyword(s):

Bond Strength ◽

Composite Resins ◽

Glass Ionomer ◽

Bonding Systems ◽

Microshear Bond Strength

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Effect of different self-etch adhesive application methods on the shear bond strengths of composite resin to dentin

ROMANIAN BIOTECHNOLOGICAL LETTERS ◽

10.25083/rbl/25.6/2188.2193 ◽

2020 ◽

Vol 25 (6) ◽

pp. 2188-2193

Author(s):

BERNADETTE KEREKES-MATHE ◽

◽

MELINDA SZEKELY ◽

ORSOLYA CSISZER ◽

MELINDA KIS ◽

...

Keyword(s):

Bond Strength ◽

Double Layer ◽

Composite Resin ◽

Acid Etching ◽

Human Teeth ◽

Bond Strengths ◽

Adhesive Application ◽

Microshear Bond Strength ◽

Ceramic Restorations ◽

Self Etch

Dental adhesion is a complex phenomenon that has challenged the conventional biomechanical principles applied to Dental Medicine. Many of the advances in aesthetic restorative dentistry are due to dental adhesion: bond of direct resin-based restorations, bond of all ceramic restorations, bond of orthodontic brackets, bond of indirect resin-based restorations and improving tooth shape and colour. An adhesive is a material that not only joins two substrates together, but also transfers loads from one surface to another. Therefore, the performance of dental adhesion is measured through adhesion strength. This paper aims at investigating the influence of application method and the optional preliminary acid etching on the shear bond strengths of a composite resin to dentin, using self-etch adhesives in single or double layer. Buccal surfaces of 40 extracted human teeth were prepared and dental adhesives were applied on the dentin surfaces. Microshear bond strength increased when double-layer application was used, but this improvement was adhesive dependent. The use of optional preliminary acid etching did not improve significantly the bond strength to dentin.

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Bond to Zirconia Ceramic: Evaluation of Different Primers and a Universal Adhesive

The Open Dentistry Journal ◽

10.2174/1874210601812010929 ◽

2018 ◽

Vol 12 (1) ◽

pp. 929-936

Author(s):

Diego Fabris Ferreira da Silva ◽

Raquel de Oliveira Lopes ◽

Niélli Caetano de Souza ◽

Maurem Leitão Marcondes ◽

Patrícia Danesi ◽

...

Keyword(s):

Bond Strength ◽

Composite Resin ◽

Testing Machine ◽

Strength Test ◽

Zirconia Ceramic ◽

Cohesive Failure ◽

Universal Adhesive ◽

The Mean ◽

Post Hoc ◽

Type Of Failure

Objective: The aim of the study was to evaluate the effect of a universal adhesive and different primers on the bond strength to zirconia ceramic. Materials and Methods: Seventy-five zirconia ceramic samples were obtained and divided into five groups (n=15): G1–Scothbond Universal (SBU); G2 – silane + SBU; G3 - Signum Zirconia Bond; G4 - Z-Prime Plus; G5 - MZ Primer. A cone of composite resin was built. The specimens were stored in 100% relative humidity with distilled water at 37°C for 48 h and then submitted to a tensile bond strength test in a universal testing machine at a crosshead speed of 0.5 mm/min. The type of failure that occurred during the de-bonding procedure was analyzed. Results: The mean results of the bond strength test (MPa) followed by the same letter represent no statistical difference by ANOVA and Tukey’s post-hoc test (p<0.05): G2=27.55a (±6.99), G4=23.71a (±5.65), G1=22.64a (±5.67), G5=13.64b (±5.49), G3=7.54c (±4.75). G2 and G4 exhibited predominantly cohesive failure in the composite resin cone. G1 and G5 had predominantly mixed failures, and G3 exhibited only adhesive failures. Conclusion: The SBU and Z-Prime Plus provided higher bond strength to zirconia ceramic.

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Microtensile Bond Strength of Methacrylate and Silorane Resins to Enamel and Dentin

Brazilian Dental Journal ◽

10.1590/0103-6440201300009 ◽

2014 ◽

Vol 25 (4) ◽

pp. 327-331 ◽

Cited By ~ 5

Author(s):

Gisele Rodrigues da Silva ◽

Isabela Sousa Araújo ◽

Rodrigo Dantas Pereira ◽

Bruno de Castro Ferreira Barreto ◽

Célio Jesus do Prado ◽

...

Keyword(s):

Bond Strength ◽

Aging Time ◽

Storage Time ◽

Composite Resin ◽

Glass Plate ◽

Composite Resins ◽

Microtensile Bond Strength ◽

Bonding Interaction ◽

Significant Difference ◽

And Storage

The aim of this study was to evaluate the microtensile bond strength (µTBS) of two substrates (enamel and dentin) considering two study factors: type of composite resin [methacrylate-based (Filtek Supreme) or silorane-based (Filtek LS)] and aging time (24 h or 3 months). Twenty human molars were selected and divided into 2 groups (n=10) considering two dental substrates, enamel or dentin. The enamel and dentin of each tooth was divided into two halves separated by a glass plate. Each tooth was restored using both tested composite resins following the manufacturer's instructions. The samples were sectioned, producing 4 sticks for each composite resin. Half of them were tested after 24 h and half after 3 months. µTBS testing was carried out at 0.05 mm/s. Data were analyzed by three-way ANOVA and Tukey's HSD tests at α=0.05. Significant differences between composite resins and substrates were found (p<0.05), but no statistically significant difference was found for aging time and interactions among study factors. The methacrylate-based resin showed higher µTBS than the silorane-based resin. The µTBS for enamel was significantly higher than for dentin, irrespective of the composite resin and storage time. Three months of storage was not sufficient time to cause degradation of the bonding interaction of either of the composite resins to enamel and dentin.

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Impact of Intracoronal Dentin Treatment Prior to Bleaching on Bond Strength of Restorative Materials

Brazilian Dental Journal ◽

10.1590/0103-6440201302441 ◽

2014 ◽

Vol 25 (6) ◽

pp. 519-523 ◽

Cited By ~ 2

Author(s):

Erica Moreno Zanconato-Carvalho ◽

João Felipe Bruniera ◽

Natália Spadini de Faria ◽

Vivian Colucci ◽

Danielle Cristine Messias

Keyword(s):

Phosphoric Acid ◽

Bond Strength ◽

Surface Treatment ◽

Shear Bond Strength ◽

Composite Resin ◽

Er:Yag Laser ◽

Composite Resins ◽

Bleaching Procedure ◽

Significant Difference ◽

Restorative Materials

Surface treatment of dentin before the bleaching procedure may affect its permeability and influence the bond strength of restorative materials. This study evaluated the influence of surface treatment before the bleaching on shear bond strength (SBT) of restorative materials to intracoronal dentin. Dentin slabs were subjected to surface treatment: no bleaching (control - CON), no surface treatment + bleaching (HP), 37% phosphoric acid + bleaching (PA) and Er:YAG laser + bleaching (L). After the bleaching procedure, specimens (n=10) were restored with: microhybrid composite resin (MH), flowable composite resin (F), and resin-modified glass-ionomer cement (RMGIC). The shear test was carried out. ANOVA and Tukey's test (α=0.05) showed significant difference for surface treatment and restorative materials (p<0.05). CON presented higher STB and was statistically different from HP (p<0.05). PA and L showed intermediate values and were statistically similar to CON and HP (p>0.05). STB for MH and F were higher than RMGIC (p<0.05), and did not differ from each other (p>0.05). The surface treatments with phosphoric acid and Er:YAG laser before the bleaching procedure provided shear bond strength at the same level of unbleached dentin and the composite resins presented superior bond strength to the intracoronal dentin.

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The Effect of Altered pH on Push-Out Bond Strength of Biodentin, Glass Ionomer Cement, Mineral Trioxide Aggregate and Theracal

Stomatoloski glasnik Srbije ◽

10.1515/sdj-2015-0001 ◽

2015 ◽

Vol 62 (1) ◽

pp. 7-13 ◽

Cited By ~ 2

Author(s):

Sameer Makkar ◽

Ruchi Vashisht ◽

Anita Kalsi ◽

Pranav Gupta

Keyword(s):

Bond Strength ◽

Alkaline Medium ◽

Gold Foil ◽

Testing Machine ◽

Glass Ionomer Cement ◽

Mineral Trioxide Aggregate ◽

Glass Ionomer ◽

Human Teeth ◽

Push Out ◽

Ionomer Cement

Summary Introduction Throughout the history of dentistry, a wide variety of materials such as gold-foil, silver posts, amalgam, zinc oxide eugenol, glass ionomer cements, mineral trioxide aggregate have been used as retrograde fillings. Altered pH in periapical lesions can affect push-out bond strength of these materials. The aim of this study was to evaluate the effect of altered pH on push-out bond strength of Biodentin, Glass ionomer cement (GIC), Mineral trioxide aggregate (MTA) and Theracal. Material and Methods Forty-eight dentin slices of extracted single-rooted human teeth were sectioned and their canal portion instrumented to achieve a diameter of 1.4 mm. The specimens were then assigned into the four groups (one group for each material) with 12 samples in each group. All groups were further divided into 3 subgroups (with 4 specimens in each subgroup): acidic (butyric acid buffered at pH 6.4), neutral (phosphate buffer saline solution at pH 7.4) and alkaline (buffered potassium hydroxide at pH 8.4). Samples were incubated for 4 days at 37°C in acidic, neutral or alkaline medium. Push-out bond strength was measured using a Universal Testing Machine. The slices were examined under a stereomicroscope to determine the nature of bond failure. Results GIC showed the highest bond strength (33.33MPa) in neutral and acidic medium (26.75MPa) compared to other materials. Biodentin showed the best result in alkaline medium. Conclusion Altered pH level affected push-out bond strength of root end materials. GIC demonstrated good push-out bond strength that increased with decrease of pH whereas newer materials Biodentin and Theracal showed satisfying results in altered pH.

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Properties of New Glass-Ionomer Restorative Systems Marketed for Stress-Bearing Areas

Operative Dentistry ◽

10.2341/18-176-l ◽

2020 ◽

Vol 45 (1) ◽

pp. 104-110 ◽

Cited By ~ 1

Author(s):

D Fuhrmann ◽

D Murchison ◽

S Whipple ◽

K Vandewalle

Keyword(s):

Fracture Toughness ◽

Composite Resin ◽

Testing Machine ◽

Surface Hardness ◽

Glass Ionomer ◽

Hardness Tester ◽

Resin Coating ◽

Significant Difference ◽

Restorative Materials ◽

Post Hoc

SUMMARY Objectives: The purpose of this study was to evaluate the properties (fracture toughness, surface hardness) of newer conventional glass-ionomer restorative materials that are marketed for posterior stress-bearing areas compared with more traditional glass-ionomer restorative materials marketed for non–load-bearing areas and composite-resin restorative materials. Methods and Materials: Notched-beam fracture toughness specimens were created in a mold with each tested material (Equia Forte, GC America, with and without a surface coating of Equia Forte Coat; Ketac Universal, 3M/ESPE; ChemFil Rock, Dentsply; Fuji IX GP Extra, GC; Ionostar Molar, VOCO; Filtek Z250, 3M/ESPE; Filtek Supreme Ultra, 3M/ESPE) and fractured using a universal testing machine after 24 hours of storage. Hardness values were determined on the surface of the fracture toughness specimens using a hardness tester. Data were analyzed with a one-way ANOVA and Tukey's post hoc test per property (alpha=0.05). Results: The composite-resin restorative materials had significantly greater fracture toughness than the glass-ionomer materials. There was no significant difference in fracture toughness between the glass-ionomer materials. The use of a resin coating significantly increased the surface hardness of the newer glass ionomer marketed for stress-bearing areas. Conclusions: Fracture toughness was not improved with the newer glass-ionomer restorative materials marketed for stress-bearing areas compared to the conventional glass-ionomer materials, however a resin coating provided greater surface hardness.

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