Removal of dental amalgam restorations in patients with health complaints attributed to amalgam: A prospective cohort study.

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dc.contributor.authorBjörkman, Lars
dc.contributor.authorMusial, Frauke
dc.contributor.authorAlraek, Terje
dc.contributor.authorWerner, Erik L.
dc.contributor.authorWeidenhammer, Wolfgang
dc.contributor.authorHamre, Harald J
dc.date.accessioned2024-11-19T17:45:59Z
dc.date.available2024-11-19T17:45:59Z
dc.date.issued2020-11
dc.description.abstractThe Norwegian Ministry of Health and Care Services initiated a project including experimental treatment for patients with health complaints attributed to amalgam restorations. The aim was to evaluate changes of general health complaints in patients who participated in the project and had all amalgam restorations removed. The project was designed as a prospective cohort study and organised by the Dental Biomaterials Adverse Reaction Unit in Bergen, Norway. The dental treatment was provided by the patient's local dentist. The main target group consisted of patients with medically unexplained physical symptoms, attributed to dental amalgam restorations (Amalgam cohort). The primary comparison group consisted of patients with medically unexplained physical symptoms without attribution to dental amalgam restorations (MUPS cohort). Primary outcome was self-reported general health complaints (GHC index) at follow-up 12-months after completed amalgam removal. In the Amalgam cohort, a significant reduction of GHC index from 43.3 (SD 17.8) at baseline to 30.5 (SD 14.4) at follow-up (mean reduction 12.8, SD 15.9; n = 32; P < .001) was observed. The change scores for GHC index indicated that the reduction of complaints was significantly higher (P = .004) in the Amalgam cohort compared with the MUPS cohort (mean reduction 1.2, SD 12.3, n = 28). After adjustment for age, gender, education and baseline GHC index, the mean adjusted difference was -8.0 (95% confidence interval from -15.4 to -0.5; P = .036). In a group of patients with medically unexplained physical symptoms, which they attributed to dental amalgam restorations, removal of amalgam restorations was followed by a significant reduction of health complaints.
dc.identifier.citationBjörkman, L., Musial, F., Alræk, T., Werner, E. L., Weidenhammer, W., & Hamre, H. J. (2020). Removal of dental amalgam restorations in patients with health complaints attributed to amalgam: A prospective cohort study. Journal of Oral Rehabilitation, 47(11), 1422–1434. https://doi.org/10.1111/joor.13080
dc.identifier.doihttps://doi.org/10.1111/joor.13080
dc.identifier.issn1365-2842
dc.identifier.orcid0000-0003-3663-530X
dc.identifier.other32810306
dc.identifier.urihttps://hdl.handle.net/20.500.14430/746
dc.language.isoen
dc.subjectsubjective health complaint
dc.subjectDental amalgam
dc.subjectprospective study
dc.subject.meshDental Care
dc.subject.meshDental Materials
dc.subject.meshHumans
dc.subject.meshDiagnostic Self Evaluation
dc.titleRemoval of dental amalgam restorations in patients with health complaints attributed to amalgam: A prospective cohort study.
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleJ Oral Rehabil
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