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Long-term performance of refurbished amalgam restorations: 10-year follow-up

dc.contributor.authorMoncada G.
dc.contributor.authorFernandez E.
dc.contributor.authorMena K.
dc.contributor.authorVildosola P.
dc.contributor.authorEstay J.
dc.contributor.authorde Oliveira O.B.
dc.contributor.authorMartin J.
dc.contributor.authorMjör I.A.
dc.contributor.authorGordan V.V.
dc.date.accessioned2020-09-02T22:23:31Z
dc.date.available2020-09-02T22:23:31Z
dc.date.issued2017
dc.identifier10.3290/j.ohpd.a38775
dc.identifier.citation15, 5, 435-445
dc.identifier.issn16021622
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5379
dc.descriptionPurpose: This prospective, blinded clinical trial assessed the performance of amalgam restorations that were refurbished, replaced, or not treated. Materials and Methods: Twenty-three patients were included, ages 18-80 years, with 63 amalgam restorations that had one or more defects in their clinical features, such as defective anatomic form, roughness and/or luster according to United State Public Health Service (USPHS) criteria. Restorations were randomly assigned to either refurbishment (A: n = 21), replacement (B: n = 21) or untreated (C: n = 21) groups. Two calibrated examiners evaluated the restorations at baseline (Kappa = 0.74) and after 10 years (Kappa = 0.84), according to eight parameters: anatomy, roughness, luster, secondary caries, marginal adaptation, occlusal contact, marginal staining and tooth sensitivity. Wilcoxon tests were performed for within-group comparisons, and Friedman tests were used for multiple within-group comparisons. The Mantel-Cox test was used to compare survival curves. Results: After 10 years, 49 restorations (77.8%) were assessed (group A: n = 19; group B: n = 13; group C: n = 17). Over a decade, the three groups showed similar clinical performances for all studied parameters: anatomy (p = 0.410), roughness (p = 0.930), luster (p = 0.984), secondary caries (p = 1.0), marginal adaptation (p = 0.433), occlusal contact (p = 0.33), marginal staining (p = 0.470), and tooth sensitivity (p = 0.784). Conclusions: Amalgam restorations that have defective anatomic form, roughness and/or luster performed similarly for all studied parameters, whether they were refurbished, replaced or left untreated after 10 years in patients with low and intermediate caries risk. Most of the restorations were classified as clinically acceptable after ten years. Restorations in all three groups tended to deteriorate over time. © 2017 Quintessenz.
dc.language.isoen
dc.publisherQuintessence Publishing Co., Ltd
dc.subjectAmalgam restorations
dc.subjectClinical trial
dc.subjectOral health care
dc.subjectRefurbished restorations
dc.subjectRestoration replacement
dc.subjectdental amalgam
dc.subjectadolescent
dc.subjectadult
dc.subjectaged
dc.subjectcontrolled study
dc.subjectdental restoration
dc.subjectfollow up
dc.subjecthuman
dc.subjectmaterials testing
dc.subjectmiddle aged
dc.subjectprospective study
dc.subjectrandomized controlled trial
dc.subjectsingle blind procedure
dc.subjecttime factor
dc.subjectvery elderly
dc.subjectyoung adult
dc.subjectAdolescent
dc.subjectAdult
dc.subjectAged
dc.subjectAged, 80 and over
dc.subjectDental Amalgam
dc.subjectDental Restoration Repair
dc.subjectDental Restoration, Permanent
dc.subjectFollow-Up Studies
dc.subjectHumans
dc.subjectMaterials Testing
dc.subjectMiddle Aged
dc.subjectProspective Studies
dc.subjectSingle-Blind Method
dc.subjectTime Factors
dc.subjectYoung Adult
dc.titleLong-term performance of refurbished amalgam restorations: 10-year follow-up
dc.typeArticle


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