Nanoleakage and Durability of Resin/Dentin Bonds

Hashimoto, Masanori; Imazato, Satoshi

doi:10.1007/s40496-015-0059-6

Cited by 6 publications

(3 citation statements)

References 37 publications

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“…29 Although nanosized filler particles are used in nanofilled composites, a combination of nanomeric and conventional filler particles is used in nanohybrids. 30 In the present study, nanofilled and nanohybrid dental composites and their two year expired equivalents were considered to clarify the effect of not only the expiration date, but also the type of dental composites on the microleakage scores. However, no statistically significant difference in the microleakage scores was observed between the two types of dental composites, likely because of the similar characteristics of these composites.…”

Section: Discussionmentioning

confidence: 99%

Microleakage Evaluation of Expired and Non-expired Resin Composites and Bonding Agents: In Vitro Study

Çilingir

DÜLGER

2022

Journal of Advanced Oral Research

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Aim: Although the shelf life is a key property of dental composites and bonding agents, these materials may often be used in simple procedures after expiration. In this study, the microleakage of two year expired and non-expired dental composites (Filtek Ultimate Universal A2 Enamel, 3M ESPE, USA, and Tetric N Ceram A2, Ivoclar Vivadent, Schaan, Liechtenstein) and a universal bonding system (Single Bond Universal, 3M ESPE, USA) was examined. Materials and Methods: In 40 freshly extracted human molars, two standardized Class II cavities (buccolingual and mesiodistal width of 3 mm and 4 mm, respectively) were prepared (80 cavity preparations). The teeth were thermocycled in distilled water for 1000 cycles in a 5°C to 55°C water bath. Next, the teeth and their apical foramens were coated with water resistant nail varnish, except for 1 mm around the restoration–tooth interface, and retained in a 1% methylene blue solution. After 24 h, the specimens were cut into two halves and analyzed using a stereomicroscope. Scanning electron microscopy images of two samples of the groups were obtained. Results: The Kruskal–Wallis test indicated no significant differences between the groups ( P < .05). The occlusal median scores were not significant ( P = .99). Moreover, the gingival median scores were not significant ( P = .48). No difference was found between the occlusal and gingival values in any group ( P > .05). Conclusion: These findings indicated that two-year-expired dental composites and bonding agent, which were maintained under proper conditions, do not have any significant difference in terms of the microleakage.

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Section: Discussionmentioning

confidence: 99%

Microleakage Evaluation of Expired and Non-expired Resin Composites and Bonding Agents: In Vitro Study

Çilingir

DÜLGER

2022

Journal of Advanced Oral Research

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“…Many studies investigated microleakage expression at the dentinresin interface; however, the nanoleakage expression might address very detailed concerns [1,[10][11][12][13]. Nanoleakage expression is an effective method for the identification of these degradation pathways and uses silver nitrate as a nanoleakage tracer [14]. These nanoleakage tracers were successfully detected by transmission electron microscope and SEM and their existence was confirmed by EDS [11,15,16].…”

Section: Discussionmentioning

confidence: 99%

Comparative SEM Observation of Silver-Nitrate at Resin-Dentin Interface: Nanoleakage Study

Bakhsh¹,

Al-Zayer²,

Al-Sahwan³

et al. 2017

Oral Health Care

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Background: Most of one-bottle self-etch dental adhesives or so-called "all-in-one" system contains a mixture of hydrophilic and hydrophobic components that are dissolved in an organic solvent. This variability between the adhesives would affect their interaction with tooth structures. Flaw in this interaction, represented by poor dentin hybridization might affect the treatment success. Thus, the objective of the study was to compare between two different all-in-one self-etch adhesives, by examining the nanoleakage expression at the dentin-resin interface.Methodology: Two all-in-one self-etch adhesives; water-based Tetric-N bond adhesive (TN; Ivoclar/Vivadent) and ethanol/water-based Tri-S bond plus (TS; Kuraray Noritake) adhesive, were used for bonding resin composite to human dentin. In order to prepare the specimen for nanoleakage evaluation, all specimens were sectioned, coated with nail-varnish and subjected to ammoniacal silver nitrate solution followed by developing solution. Then, images were taken under scanning electron microscope (SEM) and investigated by energy-dispersive X-ray spectroscopy (EDS) to trace the silver grains at the dentin-resin interface.Result: Unlike in TS group that did not show silver deposition throughout the bonded area, the TN group showed heavy silver deposition along the hybrid layer as well as throughout the adhesive layer using SEM/EDS. Conclusion:It can be concluded that water-based all-in-one adhesive would adversely affect the longevity of polymeric dental restoration as it showed heavy silver deposition along the dentin-resin interface.

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“…Failure modes was evaluated by stereomicroscopy (Nikon MA 100 stereomicroscope Japan 50x magnification with Omnimet Buehler Germany image analysis software), and type of failure either cohesive in dentine (CD: fracture within dentine substrate only), cohesive failure in composite (CC: fracture within composite substrate only), adhesive (A: fracture between dentine and composite interface) or mixed failure (M: any of 2 previous failure pattern). After testing, the fracture modes were evaluated and classified according to the predominant mode of fracture (13) .…”

Section: Evaluation Of Failure Patternmentioning

confidence: 99%

Evaluation of Matrix Metalloproteinases Biodegradation Inhibition Protocols on Resin-Dentine Interfacial Characteristics (An In Vitro Comparative Study)

EL-Behairy,

ELGhzawy,

Abdalla

2024

Al-Azhar Journal of Dental Science

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Objective: to evaluate and compare the effect of different matrix metalloproteinases biodegradation inhibition protocols. Material and methods: 192 permanent molar sound teeth were collected. Using a diamond disk, wet grinding of the occlusal surface of all samples into flat surface to expose the superficial dentinal surface. 37% phosphoric acid was applied for 15 seconds, cleaned with water and dried with cotton rolls. Then, the molar teeth were divided into four main groups (n=48); group I; No treatment (control group), group II; Chlorhexidine (2%); group III; Minocycline (2%); group IV; Sodium Hypochlorite (5.25%). Samples were cleansed with distilled water and the adhesive bonding of the dentine surface was performed and restored with light cure nanohybrid resin composite. Samples were longitudinally sectioned perpendicular to the adhesive interfaces and prepared according to test before and after thermocycling. Results: For microtensile bond test, control group and minocycline showed highest significant microtensile bond strength in comparison with chlorohexidine and sodium hypochlorite immediately and after thermocycling. While no significant difference was found between different groups for failure mode analysis. For nanoleakage, control group and minocycline showed the least nanoleakage. For hybrid layer resin tag length evaluation control group, minocycline and chlorohexidine groups showed almost similar resin tag penetration while sodium hypochlorite showed the highest penetration for resin tags. Conclusions: Usage of minocycline matrix metalloproteinase inhibitor showed promising results concerning bond strength and nanoleakage on contrary to chlorohexidine. Sodium hypochlorite results showed decreased bond strength, increased nanoleakage and resin tag length.

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Nanoleakage and Durability of Resin/Dentin Bonds

Cited by 6 publications

References 37 publications

Microleakage Evaluation of Expired and Non-expired Resin Composites and Bonding Agents: In Vitro Study

Microleakage Evaluation of Expired and Non-expired Resin Composites and Bonding Agents: In Vitro Study

Comparative SEM Observation of Silver-Nitrate at Resin-Dentin Interface: Nanoleakage Study

Evaluation of Matrix Metalloproteinases Biodegradation Inhibition Protocols on Resin-Dentine Interfacial Characteristics (An In Vitro Comparative Study)

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