]>
IRCT20220519054918N1 IRCT 2022-05-23 Tabriz University of Medical Sciences Investigation of the effect of home and office bleaching on the strength of orthodontic metal brackets Effect of home and office bleaching methods on the shear bond strength of metal brackets 2022-05-23 anticipated 175 Complete https://irct.ir/trial/63688 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The method of randomization is simple and its unit is individual. Randomization tools include the use of random number tables with random allocation. Participants are randomly assigned to one of the groups. Assignment of treatment to patients will also be done randomly. In this way, the type of treatment with the code A (bleaching in the clinic), B (home bleaching), and C (control) is specified and the patient will be given the treatment using a random number table with random allocation. None of the patients is informed of the other patient's treatment, Blinding description: Blinding in the shear bond strength assessment stage should be done for the person measuring the bond strength, which will be done by coding the studied groups. Recognize from evaluation. 2 Dental anomalies. Intervention 1: Intervention group: In group A patients, the bleaching process will be performed in the office with carbamide peroxide (Opalescence Quick PF 45% kit, Ultradent, USA). In this way, 45% hydrogen peroxide will be placed on the teeth for three days and half an hour a day according to the factory instructions. Intervention 2: Intervention group: In group B patients, the bleaching process will be performed at home with carbamide peroxide (Opalescence PF 20%, Ultradent, USA). Thus, 20% carbamide peroxide will be placed on the teeth 8 hours a day for 8 days. Intervention 3: Control group: Control group: In patients in the control group, no bleaching process will be performed. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no more information
public Sattar Akbari
Tabriz University of Medical Sciences, Golgasht St
Tabriz Iran (Islamic Republic of) 5166614711 +98 41 3335 5965 akbarisattar2@gmail.com Tabriz University of Medical Sciences scientific Sattar Akbari
Tabriz University of Medical Sciences, Golgasht St.
Tabriz Iran (Islamic Republic of) 5166614711 +98 41 3335 5965 akbarisattar2@gmail.com Tabriz University of Medical Sciences Iran (Islamic Republic of) Orthodontic patients whose treatment plan includes premolar extraction Patients in the age group of 15-35 years Patients without hypoplasia or severe wear on premolar teeth Patients without restoration or caries in premolar teeth Patients who have not previously used chemicals such as hydrogen peroxide for bleaching or other treatments 15 years 35 years Both Patients with congenital anomalies and structural defects in premolars Patients with dental allergies Z46.4 Encounter for fitting and adjustment of orthodontic device Treatment - Other Treatment - Other N/A Intervention group: In group A patients, the bleaching process will be performed in the office with carbamide peroxide (Opalescence Quick PF 45% kit, Ultradent, USA). In this way, 45% hydrogen peroxide will be placed on the teeth for three days and half an hour a day according to the factory instructions. Intervention group: In group B patients, the bleaching process will be performed at home with carbamide peroxide (Opalescence PF 20%, Ultradent, USA). Thus, 20% carbamide peroxide will be placed on the teeth 8 hours a day for 8 days. Control group: Control group: In patients in the control group, no bleaching process will be performed. Shear bond strength. Timepoint: 30 days after bleaching. Method of measurement: Materials testing machine. Tabriz University of Medical Sciences Approved 2022-05-11 Ethics Committee of Tabriz University of Medical Sciences Floor2, Central Building No.2, Tabriz University of Medical Sciences, Golgasht St Tabriz East Azarbaijan Iran (Islamic Republic of)