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IRCT2015120625379N1 IRCT 2016-01-29 Research deputy of Jondishapour medical science Effect of two kinds of orthodontic brackets on nickel and chromium ions levels in hair sample of patients Effects of fixed orthodontic treatment using casting versus metal injection molding (MIM) brackets on hair nickel and chromium levels 2016-01-30 anticipated 46 Complete https://irct.ir/trial/21248 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. N/A malocclusion. Intervention 1: control group:bonding of stainless steel casting bracket (Fairfield Orthodontic, United States) 0.022 inch slot on upper and lower teeth. Intervention 2: intervention group: Bonding of stainless steel metal injection molding bracket (Fairfield Orthodontic, United States) 0.022 inch slot on upper and lower teeth.
public Nima Haghighatjahromi
Dentistry college, Jondishapour medical science university, No 1, Mehr Alley, Day St, Golestan Ave, Ahvaz
Ahvaz Iran (Islamic Republic of) +98 61 3338 1005 haghighatnimaa@yahoo.com Jondishapour medical science university scientific Mashallah Khanemasjedi
Dentistry college, Jondishapour medical science university, No 1, Mehr Alley, Day St, Golestan Ave, Ahvaz
Ahvaz Iran (Islamic Republic of) +98 61 3336 7543 masjedi kh@yahoo.com Jondishapour medical science university, dentistry college Iran (Islamic Republic of) The inclusion and exclusion criteria: Subjects’ willingness to participate, having indication of fixed orthodontic treatment, having all permanent teeth fully erupted (no semi-eruptions, no missing or extraction) excluding third molars, lack of any systemic diseases, history of allergic reactions, smoking or alcohol consumption, absence of any caries, lack of any metal restorations (e.g., amalgam fillings or fixed prostheses) before or during treatment, having adequate length scalp hair, and absence of any hair color or hairdressing. 12 years 25 years Both K07.4 malocclusion,unspecified Other Other control group:bonding of stainless steel casting bracket (Fairfield Orthodontic, United States) 0.022 inch slot on upper and lower teeth intervention group: Bonding of stainless steel metal injection molding bracket (Fairfield Orthodontic, United States) 0.022 inch slot on upper and lower teeth Release of nickel ion. Timepoint: before intervention-6 months after intervention. Method of measurement: measure:microgram/gram dry hair mass- high resolution continuum source(AAS Contra AA700, Analytik Jena, Germany). Release of chromium ion. Timepoint: before intervention-6 months after intervention. Method of measurement: microgram/gram dry hair mass- high resolution continuum source (AAS Contra AA700, Analytik Jena, Germany). Research deputy of Jondishapour medical science Approved 2015-11-21 Ethics committee of Jondishapour medical science university Jondishapour medical science university, No 1, Mehr Alley, Day St, Golestan Ave, Ahvaz Ahvaz Iran (Islamic Republic of)