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Effect of bleaching treatment on whitening discolored teeth

Comparison of relapse of home bleaching treatment in patients with and without recall treatment

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT138901273730N1
Enrollment
50
Registered
2011-05-31
Start date
2010-06-22
Completion date
Unknown
Last updated
2018-02-22

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

Conditions

Tooth discoloration. Posteruptive colour changes of dental hard tissues

Interventions

Intervention 1: Intervention group:Teeth in a patient recieved bleachig treatment in month 3. Intervention 2: Control group: teeth in a patient did not recieve bleaching treament.
Treatment - Other
Intervention group:Teeth in a patient recieved bleachig treatment in month 3.
Control group: teeth in a patient did not recieve bleaching treament.

Sponsors

Shahid Beheshti University of Medical Science, Endodontics research center of School of dentistry
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 30 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: – six maxillary anterior teeth present and free of any restorative material covering more than one-sixth of their labial surfaces; – six anterior teeth should present A3 shade or darker than A3 in Vitaspam classic Shade Guide. – at least 18 years of age, willing to sign a consent form, able to return for periodic examinations, and willing to refrain from use of tobacco products during the study period. Exclusion criteria: – a medical condition that might interfere with the study results or require special attention; – tetracycline-stained teeth or having undergone endodontic therapy in any of the maxillary anterior teeth; – use of professionally applied tooth whiteners within the past five years; – use of any kind of tobacco products during the past 30 days; – pregnant or lactating women.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Teeth color changing. Timepoint: 2weeks, 3 month, 6month, 9 month. Method of measurement: digital camera and photoshop software.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr Maryam Abdoh Tabrizi

Shahid Beheshti University of Medical Sciences, School of dentistry

m.abdoh.t@gmail.com , mona_kashkuli@yahoo.com+98 912 135 5444

Outcome results

None listed

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