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

Status

Recruiting

Phases

Phase 2

Study type

Interventional

Source

IRCT

Registry ID

IRCT20220519054918N1

Enrollment

175

Registered

2022-05-23

Start date

2022-05-23

Completion date

Unknown

Last updated

2022-05-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental anomalies. Encounter for fitting and adjustment of orthodontic device

Interventions

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%

Eligibility

Sex/Gender

All

Age

15 Years to 35 Years

Inclusion criteria

Inclusion criteria: 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

Exclusion criteria

Exclusion criteria: Patients with congenital anomalies and structural defects in premolars Patients with dental allergies

Design outcomes

Primary

Measure	Time frame
Shear bond strength. Timepoint: 30 days after bleaching. Method of measurement: Materials testing machine.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactSattar Akbari

Tabriz University of Medical Sciences

akbarisattar2@gmail.com+98 41 3335 5965

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026