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evaluation of tooth whitening

Clinical evaluation of the effect of pH values of Hydrogen peroxide (35 %) on the ability of whitening teeth in office bleaching technique

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT2016111030813N1
Enrollment
36
Registered
2017-01-15
Start date
2017-03-19
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

Posteruptive colour changes of dental hard tissues. Posteruptive colour changes of dental hard tissues

Interventions

Intervention 1: control group:bleaching with ph 6/4 duration of treatment 45 minutes apply the material on tooth. Intervention 2: intervention group:bleaching with ph 8 duration of treatment
Treatment - Other
Treatment - Drugs
control group:bleaching with ph 6/4 duration of treatment 45 minutes apply the material on tooth
intervention group:bleaching with ph 8 duration of treatment 45 minutes apply the material on tooth
intervention group:bleaching with ph 10 duration of treatment 45 minutes apply the material on tooth

Sponsors

Yazd University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Inclusion criteria: adult patients with maxillary anterior teeth with a dark color?with discoloration caused by tetracycline or other discolorations can be treated with bleaching method?Dental leave absence? lack of wide labial surface of tooth-colored restorations? periapical lesion and absence of crowns and tooth sensitivity before treatment? lack of exposed roots or missing enamel?no caries and abrasion and attrition? not in pregnancy and lactation. Exclusion criteria: patient's unwillingness to participate in the study? patients with teeth discolorations caused by fluorosis? teeth with root canal therapy.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Ph. Timepoint: weekly. Method of measurement: Numerical scale.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactSahar Zeraatkar

Yazd University of Dentistry

drzeraatkar.s@gmail.com+98 35 3620 4763

Outcome results

None listed

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