Experimental microleakage around ageing dental amalgam restorations: a review

Jodaikin, A.

doi:10.1111/j.1365-2842.1981.tb00526.x

Cited by 19 publications

(10 citation statements)

References 16 publications

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“…However, long-term sealing capabilities of cavity varnish have been questioned (Jodaikin, 1981). A pilot study (Ben-Amar et al 1987) showed that microleakage in fresh Class V amalgam restorations can be almost totally eliminated at both enamel and dentine/cementum margins using light-cured Scotchbond Dental Adhesive (3M Company, Dental Products, St Paul, MN 55144, U.S.A.) as an interfacial sealer prior to insertion of spherical high-copper amalgam.…”

Section: Introductionmentioning

confidence: 99%

Long‐term use of dentine adhesive as an interfacial sealer under Class II amalgam restorations

Ben-Amar

Liberman

Judes

et al. 1990

J of Oral Rehabilitation

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An in vitro study was carried out to evaluate the long-term sealing properties of a light-cured dentine adhesive in Class II amalgam restorations. The restorations were subjected to repeated vertical occlusal loads and a number of thermocycling procedures. The results demonstrated significant advantages of using a dentine adhesive as an interfacial sealer in order to reduce microleakage, compared to a conventional Copal varnish.

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Section: Introductionmentioning

confidence: 99%

Long‐term use of dentine adhesive as an interfacial sealer under Class II amalgam restorations

Ben-Amar

Liberman

Judes

et al. 1990

J of Oral Rehabilitation

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“…10 Because of the difference in thermal expansion coefficients of amalgam and tooth structures, intraoral temperature changes result in intermitting opening and closing of the gap thus creating inward and outward transport of fluid (percolation) along the amalgam-tooth interface. [11][12][13] This way dentin is easily exposed to the components of saliva, food, drinks, and products from bacterial metabolism.Exposure of amalgam fillings to the aggressive oral environment results in a complex of physical and chemical challenges that causes alterations of structure and properties e.g. time,…”

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confidence: 99%

Penetration of amalgam constituents into dentine

Scholtanus

Özcan

Huysmans

2009

Journal of Dentistry

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OBJECTIVES: Amalgam restorations are replaced by adhesively placed composite resin restorations at an increasing rate. After the removal of amalgam dentine often shows marked dark discoloration that is attributed to the penetration of corrosion products from overlying amalgams. It is questioned whether penetration of metals into dentine affects the dentine as a substrate for adhesive procedures. This study has been performed to clarify the origin of dark discoloration of dentine by metals from amalgam with special regards to corrosion products. METHODS: A review of the literature has been performed using Medline database. As keywords dentine and amalgam, subsequently combined with penetration, interface, crevice, interaction, corrosion, were used. This was followed up by extensive hand search using reference lists of relevant articles. RESULTS: Data in the literature have been gathered from extracted amalgam filled teeth and from artificially aged amalgam filled teeth. Corrosion studies have been performed in vivo aged teeth as well as in vitro. Sn is the main element, followed by Zn and Cu, that is consistently found in dentine underneath amalgam, as well as in amalgam corrosion products and in marginal seal deposits. Penetration of elements from amalgam has only been observed in discolored and in demineralised dentine. CONCLUSIONS: Darkly discolored dentine as found underneath amalgam restorations contains amalgam corrosion products and is demineralised. Therefore it must be considered a different substrate for clinical procedures than sound dentine. Penetration of Amalgam Constituents into Dentin ABSTRACTObjective: Amalgam restorations are replaced by adhesively placed composite resin restorations at an increasing rate. After removal of amalgam, dentin often shows marked dark discoloration that is attributed to penetration of corrosion products from overlying amalgams. It is questioned if penetration of metals into dentin effects the dentin as a substrate for adhesive procedures. This study has been performed to clarify the origin of dark discoloration of dentin by metals from amalgam with special regards to corrosion products. Methods:A review of the literature has been performed using Medline database. As keywords dentin and amalgam, subsequently combined with penetration, interface, crevice, interaction, 2 corrosion, were used. This was followed up by extensive hand search using reference lists of relevant articles.Results: Data in the literature have been gathered from extracted amalgam filled teeth and from artificially aged amalgam filled teeth. Corrosion studies have been performed in vivo aged teeth as well as in vitro. Sn is the main element, followed by Zn and Cu, that is consistently found in dentin underneath amalgam, as well as in amalgam corrosion products and in marginal seal deposits. Penetration of elements from amalgam has only been observed in discoloured and in demineralised dentin. Conclusions:Darkly discoloured dentin as found underneath amalgam restorations contains amalgam cor...

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“…A crevice exists at the freshly condensed amalgam-tooth interface, or it may develop after varnishes under aged dental amalgam restorations craze or arc lost (Jodaikin, 1981). This crevice is sufficiently wide for micro-organisms and oral fluids to pass along the cavity walls as marginal leakage which facilitates the development of dental caries at the interface and thereby accounts for the majority of amalgam restoration replacements (Richardson and Boyd, 1973).…”

Section: Introductionmentioning

confidence: 98%

Elements in Marginal Seals at Amalgam-Tooth Interfaces

1986

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X-ray micro-analysis was used to determine the elemental composition of the tooth, amalgam, and base material of ten aged, amalgam-restored, posterior teeth after they had been fractured across the amalgam-tooth interface. Subsequently, replicas were used to remove marginal seal material from each interface for examination by x-ray micro-analysis. The results show that P and Sn were present in all marginal seal material analyzed. Ca, Cl, Cu, Fe, S, and Zn were present in the marginal seals of various numbers of specimens.

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Experimental microleakage around ageing dental amalgam restorations: a review

Cited by 19 publications

References 16 publications

Long‐term use of dentine adhesive as an interfacial sealer under Class II amalgam restorations

Long‐term use of dentine adhesive as an interfacial sealer under Class II amalgam restorations

Penetration of amalgam constituents into dentine

Elements in Marginal Seals at Amalgam-Tooth Interfaces

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