Dental adhesive microtensile bond strength following a biofilm-based in vitro aging model

Jain, Aditi; Armstrong, Steven R.; Banas, Jeffrey A.; Qian, Fang; Maia, Rodrigo Rocha; Teixeira, Erica C.

doi:10.1590/1678-7757-2019-0737

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…Type IV: Mixed failure, the fracture site started from the adhesive to the resin composite or dentin (Adhesive + Cohesive in dentin) or (Adhesive + Cohesive in composite) (12) .…”

Section: Fractographic Analysismentioning

confidence: 99%

Effect of Egg Shell and White Tea Dentin Pretreatment on Microtensile Bond Strength of Universal Adhesive System

Roushdy

Niazy²,

Mohamed³

2022

ADJ-for Girls

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Purpose: This study was conducted to evaluate the effect of egg shell and white tea dentin pre-treatment on microtensile bond strength between resin composite and dentin surface. Materials and Methods: Forty-five extracted molar teeth were divided into three subgroups according to dentin pretreatment ; with no treatment (control ), Egg shell, and white tea. Each group was subdivided for microtensile testing into three equal subgroups, either after 24 hours (T0), after1 month (T1), and after 3 months (T2).The occlusal enamel was removed. And according to each group one of pretreatments was used. Resin composite blocks were fabricated on dentin after application of self etch adhesive. The teeth were longitudinally sectioned to get composite-dentin beams, two central beams were selected from 45 teeth in order to have 90 beams. Specimens were assessed after 2 storage periods in artificial saliva: either one month (T1) or three months (T2) storage period. Specimen were subjected to microtensile bond strength testing. Results: at T0, there was no statistically significant difference in mean μTBS between different dentin pre-treatments, while at T1 and T2, white tea group showed significantly the highest μTBS mean values, followed by egg shell group, then control group. Conclusion: Natural remineralizing agents could enhance microtensile bond strength of universal bonding system in self etch mode, and remineralizing potential of natural agents has stabilized by time.

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“…Type IV: Mixed failure, the fracture site started from the adhesive to the resin composite or dentin (Adhesive + Cohesive in dentin) or (Adhesive + Cohesive in composite) (12) .…”

Section: Fractographic Analysismentioning

confidence: 99%

Effect of Egg Shell and White Tea Dentin Pretreatment on Microtensile Bond Strength of Universal Adhesive System

Roushdy

Niazy²,

Mohamed³

2022

ADJ-for Girls

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“…Inoue et al [ 107 ] showed that the micro-tensile strength of a two-step total-etch adhesive Scotchbond 1 was 43.9 MPa. Jain et al [ 108 ] obtained that the micro-tensile strength of the Optibond-FL adhesive system under water storage for six months was 49.69 MPa. The micro-tensile shear strength of dental adhesives is between 43 and 55 MPa.…”

Section: Dental Bonding Agentmentioning

confidence: 99%

Rheological and Mechanical Properties of Resin-Based Materials Applied in Dental Restorations

Zhang

Meng

et al. 2021

Polymers

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Resin-based materials have been prevalent for dental restorations over the past few decades and have been widely used for a variety of direct and indirect procedures. Typically, resin-based dental materials are required to be flowable or moldable before setting and can provide adequate mechanical strength after setting. The setting method may include, but is not limited to, light-curing, self-curing or heating. In this review, based on different indications of resin-based dental materials (e.g., dental filling composite, dental bonding agent, resin luting cement), their rheological and mechanical properties were reviewed. Viscous and flexible properties were focused on for materials before setting, while elastic properties and mechanical strength were focused on for materials after setting. At the same time, the factors that may affect their rheological and mechanical properties were discussed. It is anticipated that the insightful information and prospections of this study will be useful to the future development and fabrication of resin-based dental restorative materials.

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Effect of S. mutans biofilm on the hybrid ceramic-resin cement bond strength assessed by different methods

Mushashe,

Almeida,

Ferracane

et al. 2023

Braz.j. of oral sci.

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Aim: The purpose of this study was to investigate the biofilm effect on the hybrid ceramic-resin cement bond strength (BS) by comparing two methods. Methods: Teeth were distributed into groups (n=5), according to the resin cement (Maxcem Elite-(MC) or NX3 Nexus-(NX)) and degradation method (24h or 7 days in distilled water; 7 or 30 days incubated with biofilm and 30 days in sterile media). Treated surfaces of Vita Enamic blocks (5x6x7mm) were luted to treated or no treated dentin surfaces and light-cured. After 24h, beams were obtained (1x1x10mm) and stored accordingly. The flexural bond strength (FBS) was assessed by four-point bending test. Additional beams were obtained from new teeth (n=5), stored for 24h or 7 days in distilled water, and submitted to a microtensile bond strength (μTBS) assay. Failure modes were determined by scanning electron microscopy (100X). The flexure strength of the cements (n=10) was assessed by a four-point bending test. Data were analyzed by 1 and 2-ways ANOVA, and Tukey’s test (α=0.05). Results: There was no significant difference between the degradation methods for the FBS groups. For the μTBS, the significant difference was as follows: NX 7days > NX 24h > MC 7days = MC 24h. Failure mode was mainly adhesive and mixed, but with an increase of cohesive within cement and pre-failures for the MC groups assessed by μTBS. NX had better performance than MC, regardless of the method. Conclusions: The biofilm had no effect on the materials BS and FBS test was a useful method to evaluate BS of materials with poor performance.

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Dental adhesive microtensile bond strength following a biofilm-based in vitro aging model

Cited by 3 publications

References 34 publications

Effect of Egg Shell and White Tea Dentin Pretreatment on Microtensile Bond Strength of Universal Adhesive System

Effect of Egg Shell and White Tea Dentin Pretreatment on Microtensile Bond Strength of Universal Adhesive System

Rheological and Mechanical Properties of Resin-Based Materials Applied in Dental Restorations

Effect of S. mutans biofilm on the hybrid ceramic-resin cement bond strength assessed by different methods

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