Microtensile Bond Strength of Resin-Modified Glass Ionomer Cement to Sound and Artificial Caries–Affected Root Dentin With Different Conditioning

2017 ◽  
Vol 42 (6) ◽  
pp. 626-635 ◽  
Author(s):  
A Saad ◽  
G Inoue ◽  
T Nikaido ◽  
M Ikeda ◽  
MF Burrow ◽  
...  
Keyword(s):  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Microtensile Bond Strength ◽  
Treatment Groups ◽  
Carious Lesions ◽  
Resin Modified Glass Ionomer ◽  
High Incidence ◽  
Root Dentin ◽  
Ionomer Cement

SUMMARY In this laboratory study, the microtensile bond strengths (μTBS) of resin-modified glass ionomer cement (RM-GIC) to sound and artificial caries–affected bovine root dentin (ACAD) using three different conditioning agents were evaluated after 24 hours and three months. The fractured interface was examined with a scanning electron microscope (SEM). Specimens were created on bovine root dentin that was embedded in epoxy resin. For the ACAD specimens, artificial carious lesions were created. The RM-GIC (Fuji II LC) was applied either directly (no treatment), after application of self conditioner, cavity conditioner, or 17% ethylenediamine tetraacetic acid (EDTA) applied for 60 seconds, on sound dentin and ACAD, then light cured. They were stored in artificial saliva for 24 hours or three months. Following this, the specimens were cut into sticks for the μTBS test, and the failure mode of the debonded specimens was examined by using SEM. Pretest failures were excluded from the statistical analysis of the μTBS values because of their high incidence in some groups. Results showed that the μTBS values were significantly affected by the dentin substrate as well as the conditioning agent. Self conditioner provided the highest and most stable μTBS values, while cavity conditioner showed stable μTBS values on sound dentin. Both self conditioner and cavity conditioner had significantly higher μTBS values than the no treatment groups. EDTA conditioning reduced the μTBS after three months to sound dentin, while it showed 100% pretest failure with ACAD for both storage periods.

scholarly journals Effects of Ions-Releasing Restorative Materials on the Dentine Bonding Longevity of Modern Universal Adhesives after Load-Cycle and Prolonged Artificial Saliva Aging

Materials ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 722 ◽  
Author(s):  
Salvatore Sauro ◽  
Irina Makeeva ◽  
Vicente Faus-Matoses ◽  
Federico Foschi ◽  
Massimo Giovarruscio ◽  
...  
Keyword(s):  
Bond Strength ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
Load Cycle ◽  
Fractographic Analysis ◽  
Glass Ionomer ◽  
Microtensile Bond Strength ◽  
Resin Modified Glass Ionomer ◽  
Universal Adhesives ◽  
Ionomer Cement

This study aimed at evaluating the microtensile bond strength (MTBS) and fractographic features of dentine-bonded specimens created using universal adhesives applied in etch-and-rinse (ER) or self-etching (SE) mode in combination with modern ion-releasing resin-modified glass-ionomer cement (RMGIC)-based materials after load cycling and artificial saliva aging. Two universal adhesives (FTB: Futurabond M+, VOCO, Germany; SCU: Scotchbond Universal, 3M Oral Care, USA) were used. Composite build-ups were made with conventional nano-filled composite (AURA, SDI, Australia), conventional resin-modified glass ionomer cement (Ionolux VOCO, Germany), or a (RMGIC)-based composite (ACTIVA, Pulpdent, USA). The specimens were divided in three groups and immersed in deionized water for 24 h, load-cycled (350,000 cycles; 3 Hz; 70 N), or load-cycled and cut into matchsticks and finally immersed for 8 months in artificial saliva (AS). The specimens were cut into matchsticks and tested for microtensile bond strength. The results were analyzed statistically using three-way ANOVA and Fisher’s LSD post hoc test (p < 0.05). Fractographic analysis was performed through stereomicroscope and FE-SEM. FTB showed no significant drop in bond strength after aging. Unlike the conventional composite, the two RMGIC-based materials caused no bond strength reduction in SCU after load-cycle aging and after prolonged aging (8 months). The SEM fractographic analysis showed severe degradation, especially with composite applied on dentine bonded with SCU in ER mode; such degradation was less evident with the two GIC-based materials. The dentine-bond longevity may be influenced by the composition rather than the mode of application (ER vs. SE) of the universal adhesives. Moreover, the choice of the restorative material may play an important role on the longevity of the finalrestoration. Indeed, bioactive GIC-based materials may contribute to maintain the bonding performance of simplified universal adhesives over time, especially when these bonding systems are applied in ER mode.

scholarly journals Bond strength of a resin composite and a resin-modified glass-ionomer cement associated or not with chlorhexidine to eroded dentin

2015 ◽  
Vol 18 (2) ◽  
pp. 31
Author(s):  
Flavia Pardo Salata Nahsan ◽  
Martha Beteghelli Michielin ◽  
Luciana Mendonça Da Silva ◽  
Camila Moreira Machado ◽  
Andréa Mello De Andrade ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Composite ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
Acrylic Resin ◽  
Cervical Region ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Prior Application ◽  
Ionomer Cement

<p><strong>Objective</strong>: Even resin composites and glass-ionomer cements are widely used for dental cervical region restorations, under erosive condition they can wear out quickly. This study aimed to compare, by means of bond strength by microshear, the performance of a resin composite (RC) and a resin-modified glass-ionomer cement (RMGIC) to eroded dentin and its association with 2% chlorhexidine up to 6 months. <strong>Material</strong> <strong>and</strong> <strong>Methods</strong>:. Eighty  sound third molars teeth were cutt to obtain flat coronal dentin, which were subsequently embedded in self-curing acrylic resin circular molds exposing only this surface available. Teeth were divided into two groups, according to the treatment with the Adper Single Bond 2 + RC Filtek Z250 (Z) or the RMGIC Vitremer (V). Half of the specimens were immersed in artificial saliva-AS for 24 hours (control groups) and half subjected to 3x/1 minute daily immersion in Regular Coca Cola ®-RC for 5 days. Half of the specimens for each described condition were treated with water and half with 2% chlorhexidine for 1 minute prior the restoration. For all groups, the specimens were stored in artificial saliva weekly renewed up to tests. The bonding strength was evaluated by  microshear test after 1 month and 6 months . Data, in normal distribution, were analyzed with 3-way ANOVA and Tukey (p &lt;0.05). <strong>Results</strong>: Challenge factors, materials and time were statistically significant.. Restorations with Z showed significantly higher bond strength compared to V in all situations. There was a reduction in bond strength values over time for all tested conditions. The prior application of 2% chlorhexidine was able to preserve the Z bond strength between 1 and 6 months, but this factor was not statistically significant. <strong>Conclusion</strong>: For eroded dentin, the use of resin composite seems presents greater bond strength compared to resin-modified glass-material, disregarding their association to chlorhexidine or not.</p>

scholarly journals Clinical efficiency evaluation of minimal dental restorations on occlusal teeth surfaces

2004 ◽  
Vol 51 (1) ◽  
pp. 13-18
Author(s):  
Vesna Zivojinovic ◽  
Dejan Markovic
Keyword(s):  
Glass Ionomer Cement ◽  
Dental Restoration ◽  
Glass Ionomer ◽  
Evaluation Period ◽  
Dental Restorations ◽  
Group I ◽  
Carious Lesions ◽  
Occlusal Surfaces ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

Minimal dental restoration of occlusal surfaces using sealing for prevention, preserve sound tooth structure. The aim of this study was to clinicaly assess the performance of three different techniques in minimal dental restoration. A total of 90 teeth (premolars or molars) with minimal carious lesions were equally divided into three groups and included in this study. In group I and II teeth were restored either with the composite resin and the resin modified glass ionomer cement. Composite sealant (separately applied) was used in both groups. In group III teeth received resin modified glass ionomer cement. These materials were used at the same time as a restorative and a sealant. Modified Cvar and Ryge criteria were used for clinical evaluation after 1, 2, 3, 6 and 12 months. Complete retention at the end of the evaluation period for I, II and III group was 97%, 93% and 93% respectively. No secondary caries was recorded after the evaluation period. From the obtained results it can be concluded that minimal dental restorations presents an efficient and successful technique in the treatment of small occlusal carious lesions.

Influence of Silver Diamine Fluoride Treatment on the Microtensile Bond Strength of Glass Ionomer Cement to Sound and Carious Dentin

2020 ◽  
Vol 45 (5) ◽  
pp. E271-E279
Author(s):  
M Jiang ◽  
ML Mei ◽  
MCM Wong ◽  
CH Chu ◽  
ECM Lo
Keyword(s):  
Bond Strength ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
T Test ◽  
Glass Ionomer ◽  
Microtensile Bond Strength ◽  
Silver Diamine Fluoride ◽  
Significant Difference ◽  
The Mean ◽  
Ionomer Cement

Clinical Relevance This study provides valuable information about the influence of silver diamine fluoride (SDF) treatment on the microtensile bond strength of glass ionomer cement (GIC) to dentin. SUMMARY Objectives: To investigate the influence of silver diamine fluoride (SDF) treatment on the microtensile bond strength (mTBS) of glass ionomer cement (GIC) to sound and artificial carious dentin. Methods: Thirty dentin blocks prepared from 30 noncarious human molars were randomly allocated into either the sound (Gp1) or artificial carious dentin (Gp2) groups. A microbiological method was adopted to create artificial dentin caries lesions in Gp2 specimens. Each dentin block was sectioned into two halves perpendicularly, and each pair of block halves was randomly assigned to two subgroups to receive topical application of SDF (Gp1-SDF, Gp2-SDF) or water as control (Gp1-water, Gp2-water). An encapsulated GIC was bonded to the exposed dentin surfaces 14 days after the SDF/water application. After immersion for 7 days in artificial saliva, the GIC-dentin specimens were sectioned into beams for mTBS testing. Failure mode was examined after the mTBS test. Results: There was no significant difference in the mean mTBS values between the SDF and control subgroups (Gp1-SDF vs Gp1-water, 10.57±1.6 MPa vs 10.20±1.8 MPa; Gp2-SDF vs Gp2-water, 6.14±2.2 MPa vs 5.97±2.3 MPa; paired t-test, p&gt;0.05). However, the mean mTBS value of the sound dentin group was significantly higher than that of the carious dentin group, irrespective of whether SDF was applied prior to GIC bonding (independent t-test, p&lt;0.001). Proportionally more cohesive failures occurred in the sound dentin groups (Gp1-SDF, 48.4%; Gp1-water, 42.9%) compared with the carious dentin groups (Gp2-SDF, 15.6%; Gp2-water, 9.8%; p&lt;0.05). Conclusions: SDF treatment had no significant influence on the mTBS of GIC to dentin. Compared with sound dentin, dentin with caries had lower mTBS to GIC.

scholarly journals Pengaruh Perendaman Jus Jeruk Terhadap Kekuatan Tekan Glass Ionomer Cement dan Resin Modified Glass Ionomer Cement

2021 ◽  
Vol 9 (1) ◽  
pp. 1-9
Author(s):  
Claudia Florencita Ediharsi ◽  
Dedi Sumantri ◽  
Arymbi Pujiastuty
Keyword(s):  
Compressive Strength ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
Control Group ◽  
Glass Ionomer ◽  
Control Group Design ◽  
Resin Modified Glass Ionomer ◽  
Gold Label ◽  
The Mean ◽  
Ionomer Cement

Glass ionomer cement and resin modified glass ionomer cement are one of the restoration materials that are widely used by dentists. Its presence in the oral cavity causes glass ionomer cement and resin modified glass ionomer cement often in contact with food and beverages such as tangerine juice which can affect the compressive strength. The purpose of this study is to determine the effect of immersion in tangerine juice towards the compressive strength of glass ionomer cement and resin modified glass ionomer. This study was a true experimental with a post test only with control group design. Samples were made from GC Fuji 9 GP and GC Gold Label 2 LC with 36 samples each. Samples were divided into two groups. The first group (18 samples of GC Fuji 9 GP and 18 samples of GC Gold Label 2 LC) was immersed in tangerine juice for 24 hours in an incubator at 37°C. The second group (18 samples of GC Fuji 9 GP and 18 samples of GC Gold Label 2 LC) as a control was immersed in artificial saliva for 24 hours in an incubator at 37°C. The compressive strength was determined using a compression machine. The results showed that the mean compressive strength of glass ionomer cement immersed in tangerine juice was 14,03±0,48 MPa and immersed in artifical saliva was 52,08±0,67 MPa. The mean compressive strength of resin modified glass ionomer cement immersed in tangerine juice was 58,98±0,97 MPa and immersed in artifical saliva was 68,28±0,67 MPa. Data were analyzed with Independent T-test showing the results of p<0.05. The conclusion of this study was that there was an effect of immersion in tangerine juice towards the decreasing of the compressive strength of glass ionomer cement and resin modified glass ionomer cement.

Microleakage of class II restoration with zirconia inlay: An in vitro study

2019 ◽  
pp. 61-67
Author(s):  
Xuan Anh Ngoc Ho ◽  
Anh Chi Phan ◽  
Toai Nguyen
Keyword(s):  
Glass Ionomer Cement ◽  
Class Ii ◽  
Resin Cement ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer ◽  
Group 2 ◽  
Self Etch ◽  
Ionomer Cement ◽  
Group 1 ◽  
Composite Restoration

Background: Class II restoration with zirconia inlay is concerned by numerous studies about the luting coupling between zirconia inlay and teeth. The present study was performed to evaluate the microleakage of Class II zirconia inlayusing two different luting agents and compare to direct restoration using bulk fill composite. Aims: To evaluate the microleakage of Class II restorations using three different techniques. Materials and methods: The study was performed in laboratory with three groups. Each of thirty extracted human teeth was prepared a class II cavity with the same dimensions, then these teeth were randomly divided into 3 groups restored by 3 different approaches. Group 1: zirconia inlay cemented with self-etch resin cement (Multilink N); Group 2: zirconia inlay cemented with resin-modified glass ionomer cement (Fuji Plus); Group 3: direct composite restoration using bulk fill composite(Tetric N-Ceram Bulk Fill). All restorations were subjected to thermal cycling (100 cycles 50C – 55 0C), then immersed to 2% methylene blue solution for 24 hours. The microleakage determined by the extent of dye penetration along the gingival wall was assessed using two methods: quantitative and semi-quantitative method. Results: Among three types of restorations, group 1 demonstrated the significantly lower rate of leakage compared to the others, while group 2 and 3 showed no significant difference. Conclusion: Zirconia inlay restoration cemented with self-etch resin cement has least microleakage degree when compare to class II zirconia inlay restoration cemented with resin-modified glass ionomer cement and direct composite restoration using bulk fill composite. Key words: inlay, zirconia ceramic, class II restoration, microleakage.

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