The aim of the project is to study changes in symptom load after removal of all dental amalgam restorations in patients with symptoms allegedly related to amalgam.
Patients referred from dentists and physicians in the period 1993 to 1999 to the Dental Biomaterials Adverse Reaction Unit, Department of Health, UNIFOB AS, for symptoms related to amalgam restorations are randomized into treatment group (n=20) or reference group (n=20). All patients in the treatment group are followed 3, 12, 36 and 60 months after completion of amalgam removal with questionnaires on health outcomes, Minnesota Multiphasic Personality Inventory-2 (MMPI-2) and laboratory tests.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
50
Removal of dental amalgam restorations by patient's own dentist. Fillings will be replaced with e.g. resin based filling material, metalloceramic restorations, and ceramic materials. Rubber dam will be used during removal of amalgam restorations.
UNIFOB AS, Dental Biomaterials Adverse Reaction Unit
Bergen, Norway
Changes of subjective health complaints
Time frame: Five years
Changes over time of the MMPI-profile
Time frame: Five years
Quality of life improvement
Time frame: Five years
Reduction of mercury in blood serum
Time frame: One year
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