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IRCT201705099086N3 IRCT 2017-07-07 Deputy of Research and Technology, Hamadan University of Medical Sciences Comparison of the effect of type of orthodontic bracket adhesive on dental caries around brackets and bond strength Shear bond strength of brackets and enamel demineralization around brackets bonded with self etching primers compared to conventional acid etch technique: An in-vivo study 2017-07-08 anticipated 25 Complete https://irct.ir/trial/9709 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Prevention. N/A Dental caries. Intervention 1: Intervention: This group will receive Self Etching Primer for bonding brackets and after at least two months, the teeth were examined for demineralization and shear bond strength. Intervention 2: Control: This group will receive conventional Acid Etch technique for bonding brackets and after at least two months, the teeth were examined for demineralization and shear bond strength the same as the intervention group.
public Vahid Shahidi Zandi
Shahid Fahmideh Street
Hamadan Iran (Islamic Republic of) 6517838677 +98 81 3838 1059 vahidshahidi13@gmail.com Department of Orthodontics, Dental School, Hamadan University of Medical Sciences scientific Nasrin Farhadian
Shahid Fahmideh Street
Hamadan Iran (Islamic Republic of) 6517838677 +98 81 3838 1059 nasrinfarhadian@gmail.com Department of Orthodontics, Dental School, Hamadan University of Medical Sciences Iran (Islamic Republic of) Iran (Islamic Republic of) Inclusion criteria: Patients requiring fixed orthodontic treatment for upper and/or lower arch; Treatment plan based on at least 2 premolar extraction; No previous orthodontic treatment; Sound and intact enamel on the buccal area; No restoration, attrition, and caries on enamel Exclusion criteria: Craniofacial anomalies; Hypoplasia and obvious demineralization of enamel; Systemic diseases 12 years no limit Both K02.0 Caries limited to enamel Prevention Prevention Intervention: This group will receive Self Etching Primer for bonding brackets and after at least two months, the teeth were examined for demineralization and shear bond strength. Control: This group will receive conventional Acid Etch technique for bonding brackets and after at least two months, the teeth were examined for demineralization and shear bond strength the same as the intervention group. Enamel demineralization around brackets. Timepoint: 8-9 weeks after treatment. Method of measurement: Lesion depth in microns by polarized light microscopy. Shear Bond Strength. Timepoint: 8-9 weeks after treatment. Method of measurement: pressure in megapascal by Instron unversal testing machine. Adhesive Remnant Index. Timepoint: 8-9 weeks after treatment. Method of measurement: stereomicroscope with magnification by 60 times. Deputy of Research and Technology, Hamadan University of Medical Sciences Approved 2017-05-27 committee of ethics in research Hamadan University of Medical Sciences Hamadan Iran (Islamic Republic of)