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Comparison between three types of at-home dental bleaching for effects and tooth sensitivity

Evaluation of the tooth sensitivity and efficacy of two systems of over-the-counter teeth whitening products compared with at-home bleaching with carbamide peroxide: A randomized clinical trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN23096480
Enrollment
39
Registered
2023-04-12
Start date
2021-02-01
Completion date
Unknown
Last updated
2024-06-18

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

Conditions

Assessment of tooth sensitivity and the efficacy of dental bleaching products Oral Health

Interventions

This study is a randomized controlled clinical trial. Participants were divided randomly into three groups by an external person: Group A: Participants were instructed to apply 20% carbamide peroxide

Sponsors

Damascus University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Good general health 2. Adults (aged between 18 and 35 years old) 3. No caries or restoration on the six maxillary anterior teeth 4. Permanent teeth with a shade of A2 or darker on the shade guide (Vitapan Classical, Vita Zahnfabrik) 5. No history of tooth sensitivity 6. Availability for the follow-ups

Exclusion criteria

Exclusion criteria: 1. Poor oral hygiene and general health 2. Current or previous use of bleaching agents 3. A history of allergies to tooth bleaching products 4. Orthodontic treatment 5. Parafunctional habits such as bruxism 6. Pregnant or lactating women 7. Advanced periodontal disease or active carious lesions 8. Tetracycline-stained teeth 9. Tooth hypersensitivity or deep cracks in the teeth 10. Smoking

Design outcomes

Primary

MeasureTime frame
1. Tooth sensitivity measured using a visual analogue scale (VAS) at baseline, and days 1, 2, 3, 4, 5, 7 and 14 days of bleaching. 2. Color change measured using the Vita easy shade spectrophotometer at baseline, and 7 and 14 days of bleaching, 2 weeks and 6 months after bleaching

Secondary

MeasureTime frame
There are no secondary outcomes measures

Countries

Syria

Contacts

Public ContactEenass Krayem
eenasskrayem@gmail.com+963 949347992

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 7, 2026