comparing of two types of whitening toothpaste

Comparing the effectiveness of two types of whitening toothpastes in inhibiting dental stain

Status

Recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20220726055559N4

Enrollment

Registered

2023-11-12

Start date

2023-11-08

Completion date

Unknown

Last updated

2023-11-13

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

Conditions

dental stain. Deposits [accretions] on teeth

Interventions

Intervention 1: Intervention group: A They received whitening toothpaste containing silica hydrate. They used the toothpaste on the toothbrush twice a day for 42 days for two minutes each time. Interv

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Having at least 4 anterior teeth and premolars with stain and without restoration and caries without orthodontic appliance or removable and fixed prosthesis

Exclusion criteria

Exclusion criteria: systemic diseases pregnancy any restorative treatment and bleaching

Design outcomes

Primary

Measure	Time frame
Dental stain. Timepoint: measurment dental stain at the beginning of the study,after 28 days and 42 days. Method of measurement: We determine the intensity and location of the stain by using Loben's numerical index, which is 0-3.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactShaghayegh Khoshnama Bahrami

Sanandaj University of Medical Sciences

shaghayegh.khb@yahoo.com+98 87 3377 1661

Outcome results

None listed

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