Adhesive systems and secondary caries formation: Assessment of dentin bond strength, caries lesions depth and fluoride release

Peris, Alessandra Rezende; Mitsui, Fábio Hiroyuki Ogata; Lobo, Maristela Maia; Bedran-Russo, Anakarina B.; Marchi, Giselle Maria

doi:10.1016/j.dental.2006.02.001

Cited by 55 publications

(61 citation statements)

References 19 publications

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“…The authors attribute the decreased µTBS values to the resulting demineralization occurring around the restorations to weaken the bonding, regardless of the presence of fluoride within the adhesives. 8 In the current study, all groups were subjected to pH cycling, which caused demineralization to occur around the bonded interface, and the bleaching treatment of the enamel interface, which was performed simultaneously with the pH cycling, was able to decrease bond strength to enamel, regardless of the presence of F -in the bleaching agents. Possibly, if the amounts of F -released from the bleaching agents were sufficient to remineralize the enamel, then the bond strengths exhibited by groups treated with bleaching gels containing F -(FL + CPF and SP + CPF) would be similar to the bond strengths of the non-bleached groups (FL and SP).…”

Section: Discussionmentioning

confidence: 99%

“…22 The authors also note that the threestep etch-and-rinse have better laboratory and clinical performance than the two-step adhesives; in the case of the former, the application of the hydrophilic monomer is performed separately before the application of the hydrophobic monomer, granting optimal resin infiltration and mechanical interlocking. 22 Peris et al 8 evaluated the µTBS of a dentin interface bonded with fluoride-containing and fluoridefree adhesives and subjected (or not) to pH cycling. They observed that pH cycling reduced dentin bond strength of all adhesives.…”

Section: Discussionmentioning

confidence: 99%

“…5 However, the ability of adhesives to release fluoride at the interface has been evaluated under caries challenge conditions, [6][7][8] so it is uncertain whether the amount of fluoride released at the restoration wall may be able to prevent or reverse the development of caries. 8 In clinical situations, the adhesive interface is subjected not only to caries challenges but also to agents that compromise marginal integrity. Among these, carbamide peroxide bleaching emerges as a common esthetic procedure; however, several reports demonstrate its potential adverse effects on the enamel, 9,10 particularly at the enamel-bonded interface.…”

Section: Introductionmentioning

confidence: 99%

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Influence of fluoride-containing adhesives and bleaching agents on enamel bond strength

et al. 2012

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This study evaluated the influence of fluoride-containing carbamide peroxide (CP) bleaching agents and adhesive systems on bonded enamel interfaces that are part of the dynamic pH cycling and thermal cycling models. The buccal surfaces of 60 bovine incisors were restored with a composite resin and bonded with three-and two-step, etch-and-rinse, fluoride-containing adhesives, Optibond FL (FL) and Optibond Solo Plus (SP), respectively. Restored teeth were subjected to thermal cycling to age the interface. Both SP and FL adhesive-restored teeth were bleached (n = 10) with 10% CP (CP) and 10% CP + fluoride (CPF) or were left unbleached (control). Bleaching was performed for 14 days simultaneously with pH cycling, which comprised of 14 h of remineralization, 2 h of demineralization and 8 h of bleaching. The control groups (FL and SP) were stored in remineralizing solution during their bleaching periods and were also subjected to carious lesion formation. Parallelepiped-shaped samples were obtained from the bonded interface for microtensile bond strength (µTBS) testing. The enamel µTBS of the FL and SP groups (control, not bleached) were higher (p < 0.05) than those of the bleached interfaces (FL > FL + CPF = FL + CP and SP > SP + CPF = SP + CP). The groups subjected to treatment with the fluoride-containing bleaching agents exhibited similar µTBS compared to regular bleaching agents. Bleaching agents, regardless of whether they contained fluoride, decreased enamel bond strength.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of fluoride-containing adhesives and bleaching agents on enamel bond strength

et al. 2012

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“…In order to control secondary caries, which is one of the common factors that limits the bond durability, 3 modifications in the adhesive systems' formulation, such that they were characterized by antibacterial activity, were considered beneficial. From this point of view, versions of adhesive systems containing fluoride in composition have been introduced.…”

Section: Introductionmentioning

confidence: 99%

Bond Durability of Adhesives Containing Modified-monomer With/Without-fluoride After Aging in Artificial Saliva and Under Intrapulpal Pressure Simulation

El-Deeb¹,

Sherbiney

Mobarak

2013

Operative Dentistry

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Adhesives with hydrolytically stable modified monomers could be a promising approach to enhance bonding durability. SUMMARYObjective: To evaluate the dentin bond strength durability of adhesives containing modified-monomer with/without-fluoride after storage in artificial saliva and under intrapulpal pressure simulation (IPPS).Materials and Methods: The occlusal enamel of 48 freshly extracted teeth was trimmed to expose midcoronal dentin. Roots were sectioned to expose the pulp chamber and to connect the specimens to the pulpal-pressure assembly. Specimens were assigned into four groups (n=12) according to adhesive system utilized: a two-step etch-and-rinse adhesive system (SB, Adper Single Bond 2, 3M ESPE), a two-step self-etch adhesive system (CSE, Clearfil SE Bond, Kuraray Medical Inc), and two single-step self-etch adhesives with the same modified monomer (bis-acrylamide)-one with fluoride (AOF, AdheSE One F, Ivoclar-Vivadent) and the other without (AO, AdheSE One, Ivoclar-Vivadent). Bonding was carried out while the specimens were subjected to 15-mm Hg IPPS. Resin composite (Valux Plus, 3M ESPE) buildups were made. After curing, specimens were aged in artificial saliva and under 20-mm Hg IPPS at 378C in a specially constructed incubator either for 24 hours or six months prior to testing. Bonded specimens (n=6/group) were sectioned into sticks (n=24/ group) with a cross section of 0.9 6 0.01 mm 2 and subjected to microtensile bond strength (lTBS) testing using a universal testing machine. Data were statistically analyzed using two-way analysis of variance (ANOVA) with repeated measures, one-way ANOVA tests, and a t-test (p,0.05). Failure modes were determined using a scanning electron microscope.Results: The lTBS values of SB and CSE fell significantly after six-month storage in artificial saliva and under IPPS, yet these values remained significantly higher than those for the other two adhesives with modified monomers. There was no significant difference in the bond strength values between fluoridecontaining and fluoride-free self-etch adhesive systems (AOF and AO) after 24 hours or six months. Modes of failure were mainly adhesive and mixed.Conclusions: Based on the results of this study, 1) Fluoride addition did not affect dentin bond durability; and 2) despite the fact that the single-step adhesive system with modified monomer showed stability, bond strengths associated with these systems remained lower than those of multistep adhesive systems.

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“…1,[4][5] Between bond strength measurements on enamel and dentin [6][7][8] and studies related to the biocompatibility of system components [9][10][11] and spectroscopic investigations, [12][13] numerous imaging methods can help to characterize restoration systems in great detail by investigating phenomena, such as marginal integrity, microleakage and the mechanisms of mechanical adhesion (interlocking/hybridization of enamel and dentin). 14 Such experimental screenings include investigating tooth substrates of different qualities (sound/carious dentin) 8,[15][16][17][18][19] and C-factors, [20][21][22] simulation of pulpal pressure and the oral environment, [23][24][25] the application of thermal and occlusal stresses, fatigue simulation [26][27] or, for better simulation of the clinical situation, studies on in vivo restored teeth that have been in use for a certain period of time. 5,9,25,[28][29][30][31][32][33] In the past, one of the intentions of the authors of the current study was to combine the clinical assessment of enamel-dentin bonding systems with experimental in vivo and in vitro studies on the basis of the micromorphological evaluation of the tooth-composite interface and microleakage formation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Operator-specific Handling on Tooth-composite Interface and Microleakage Formation

Schneider

Busch²,

Busch³

et al. 2009

Operative Dentistry

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SUMMARYThe aim of this in vitro study was a comparative investigation of tooth-composite interface morphology and microleakage formation after the calibrated restoration of Class II cavities with a proven multi-component, three-step, total-etch adhesive system by three experienced operators. The current study also aimed to acquire data about the well-tried adhesive system under defined laboratory conditions for further comparative assessments with other adhesives. H Schneider • I Busch • M Busch H Jentsch • M Häfer Clinical RelevanceAfter calibration of the restoration procedure, three operators experienced differences in toothcomposite interface morphology and microleakage formation. These differences reflect technique-sensitivity of the etch-and-rinse adhesive. The lowest microleakage on dentin was related to an enhanced interface integrity. After additional application of an adhesive component, sealing of the enamel and dentin was partially enhanced, but microleakage formation did not decrease. These results are helpful in the comparative evaluation of other bonding systems. Schneider & Others: Effect of Operator-specific Handling on Tooth-composite Interface & Microleakage FormationForty Class II cavities were prepared on extracted, caries-free molars. In the first study (Part A), 24 cavities were restored (n=8 each) according to the manufacturers' instructions.In the second study (Part B), 16 teeth (n=6, 4, 6) were filled in the same way; however, the last component of the same adhesive system was applied twice. The teeth were prepared for microleakage testing and morphological assessment of the composite-tooth interface by scanning electron microscopy. The three operators had differences with regard to adhesive layer formation, inter-/peritubular adhesive penetration and the formation of adhesive failures on the dentin interface and microleakage on dentin. The lowest microleakage on dentin was related to enhanced peritubular and intertubular adhesive penetration.After double application of an adhesive component (Part B), the sealing of the enamel and dentin with adhesive increased partially, and adhesive failures on dentin were partly diminished, but no distinct effects on microleakage formation were found.The results confirm the technique-sensitivity of the etch-and-rinse adhesive related to interface morphology and microleakage formation. These results are helpful in the comparative evaluation of other bonding systems.

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Adhesive systems and secondary caries formation: Assessment of dentin bond strength, caries lesions depth and fluoride release

Cited by 55 publications

References 19 publications

Influence of fluoride-containing adhesives and bleaching agents on enamel bond strength

Influence of fluoride-containing adhesives and bleaching agents on enamel bond strength

Bond Durability of Adhesives Containing Modified-monomer With/Without-fluoride After Aging in Artificial Saliva and Under Intrapulpal Pressure Simulation

Effect of Operator-specific Handling on Tooth-composite Interface and Microleakage Formation

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