Dental adhesion review: Aging and stability of the bonded interface

Breschi, Lorenzo; Mazzoni, Annalisa; Ruggeri, Alessandra; Cadenaro, Milena; Lenarda, Roberto Di; Dorigo, E

doi:10.1016/j.dental.2007.02.009

Cited by 1,029 publications

(1,056 citation statements)

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“…The adhesive failures from dentin accompanied with low fracture strength results such as in Group 3 can be explained by the theory that during the application of the composite cement and veneers, the pressure could have collapsed the collagen network [14,34]. The polymerized adhesive resin (IDS) of Group 5 with full infiltration into the hybrid layer could have prevented the collapse of the dentinal collagen structure [13,14,34,35].…”

Section: Discussionmentioning

confidence: 99%

“…The polymerized adhesive resin (IDS) of Group 5 with full infiltration into the hybrid layer could have prevented the collapse of the dentinal collagen structure [13,14,34,35]. Furthermore, water sorption could also decrease adhesive strength, as improper infiltration of the collagen network by the adhesive resin would result in hydrolytical degradation and decrease resin-resin adhesion [36].…”

Section: Discussionmentioning

confidence: 99%

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Effect of immediate and delayed dentin sealing on the fracture strength, failure type and Weilbull characteristics of lithiumdisilicate laminate veneers

et al. 2016

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OBJECTIVES Adhesion on dentin is less reliable than on enamel, which could affect the durability of laminate veneers (LV). Immediate dentin sealing (IDS) is suggested instead of delayed dentin sealing (DDS) to overcome hypersensitivity and prevent debonding from dentin. This study evaluated the effect of IDS and DDS on the durability of Li2Si2O5 laminate veneers in vitro. METHODS Window preparations were made on the labial surfaces of sound maxillary central incisors (N=50). They were randomly divided into five groups: Group 1: Enamel only+H3PO4+Adhesive (control); Group 2: <1/4 dentin+H3PO4+DDS (2 weeks later); Group 3: Complete dentin+H3PO4+DDS (2 weeks later); Group 4: <1/4 dentin+H3PO4+IDS; Group 5: Complete dentin+H3PO4+IDS. Li2Si2O5 laminate veneers (e.max Press) were bonded to the labial surfaces of the teeth with adhesive resin cement (Variolink Veneer). IDS layers were silicacoated (CoJet System) and silanized (ESPE-Sil). The teeth with their bonded laminates were thermocycled (10.000× cycles) and then subjected to static loading (1mm/min). Failure type and location after debonding were classified. Data were analyzed using ANOVA and Tukey's post hoc test ( =0.05). Two-parameter Weibull distribution values including the Weibull modulus, scale (m) and shape (0), values were calculated. RESULTS Mean fracture strength (N) per group in descending order was as follows: Group 5 (576±254), Group 4 (478±216), Group 1 (473±159), Group 2 (465±186), and Group 3 (314±137). The presence of complete dentin exposure sealed with DDS after 2 weeks on the bonded surface (Group 3) resulted in significantly lower fracture strength results than those in group 5 with IDS (p=0.034). Weibull distribution presented higher shape (0) for Group 1 (3.67), than those of other groups (2.51-2.89). Failure types were predominantly adhesive failure between the cement and the laminate veneer in Groups 1, 2, 4 whereas Group 3 presented more often complete adhesive failures between the cement and dentin. In Group 5, failures showed some IDS and cement with or without ceramic fracture attached on the tooth. SIGNIFICANCE When laminate veneers are bonded to a large dentin substrate, application of immediate dentin sealing improves adhesion and thereby, the fracture strength of Li2Si2O5 laminate veneers. Gresnigt, Marco M M; Cune, Marco S; de Roos, Joanne G; Özcan, Mutlu (2016) ABSTRACTObjectives. Adhesion on dentin is less reliable than on enamel, which could affect

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effect of immediate and delayed dentin sealing on the fracture strength, failure type and Weilbull characteristics of lithiumdisilicate laminate veneers

et al. 2016

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“…As further efforts are required to ratify related initial encouraging results, for compiled deeper information, one should refer to Perdigão et al 40 and Tjäderhane. 6 Authors claim that, 6,41,68 although CHX may not be unfailing, it can and should be indicated (often as an optional step before application of etch-and-rinse, or even self-etch, primer / primer plus bonding) until new strategies have been recognized harmless and just as effective in preserving collagen fibrils integrity, thus favoring bonding durability for some time.…”

Section: Enzymatic Inhibitorsmentioning

confidence: 99%

“…6 For the adhesives to properly impregnate its hydrophobic monomers into the intrinsically humid dentin, hydrophilic monomers are included in their composition. As a counter effect, the adhesive interface becomes more prone to water sorption and consequent hydrolysis 39,40,41,42,43,44 Hydrophilic adhesives can also attract water from hydrated dentin resulting in water-filled channels within the polymer matrices. 45 Besides promoting the degradation of collagen fibers, water also presents a degradative effect on resin monomers.…”

Section: Why Do Adhesive Interfaces Fail?mentioning

confidence: 99%

Bonding efficiency and durability: current possibilities

et al. 2017

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Bonding plays a major role in dentistry nowadays. Dental adhesives are used in association with composites to solve many restorative issues. However, the wide variety of bonding agents currently available makes it difficult for clinicians to choose the best alternative in terms of material and technique, especially when different clinical situations are considered. Moreover, although bonding agents allow for a more conservative restorative approach, achieving a durable adhesive interface remains a matter of concern, and this mainly due to degradation of the bonding complex in the challenging oral environment. This review aims to present strategies that are being used or those still in development which may help to prevent degradation. It is fundamental that professionals are aware of these strategies to counteract degradation as much as possible. None of them are efficient to completely solve this problem, but they certainly represent reasonable alternatives to increase the lifetime of adhesive restorations.

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“…23 To obtain adequate bonding, the smear layer, which is formed during cavity preparation, must be treated or removed by adhesives. 25 However, the effects of different adhesive systems vary widely both on the smear layer and in bonding quality. 22,26,27 Biologically and technically, bonding mechanisms are different in etch-and-rinse and self-etch systems.…”

Section: Introductionmentioning

confidence: 99%