Study on the whitening and sensitive relief effects of LESENING Teeth Strips

Study on the whitening and sensitive relief effects of LESENING Teeth Strips containing 3% hydrogen peroxide and 1.5% potassium nitrate

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN30027746

Enrollment

Registered

2025-03-07

Start date

2024-06-08

Completion date

Unknown

Last updated

2026-01-27

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

Conditions

Treatment for tooth discoloration and prevention of tooth hypersensitivity after tooth whitening. Oral Health

Interventions

The trial was to compare the whitening efficacy and anti-sensitivity effects of LESENING Whitening Strips with that of Crest 3D Whitestrips. Following the initial examination, all participants signed

Eligibility

Sex/Gender

All

Age

18 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1. Healthy adults aged 18 to 60 2. Willingness to whiten teeth 3. No tetracycline staining 4. No fluorosis in natural maxillary anterior teeth 5. No external staining from smoking, plaque, or calculus 6. Untreated dentin hypersensitivity 7. Fixed orthodontic devices or removable partial dentures, fillings or crowns 8. Recent use of desensitizing products 9. Involvement in other similar trials

Exclusion criteria

Exclusion criteria: 1. Severe oral or systemic diseases 2. Allergy to the products 3. Ongoing periodontal disease in teeth 13-23 4. Periodontal treatment within the past year 5. Tooth mobility exceeding grade 1 6. Extensive restorations on the labial surfaces of teeth 13-23, pulpitis, caries, enamel cracks, smoking 7. Pregnancy or breastfeeding

Design outcomes

Primary

Measure	Time frame
The following primary outcome measures were assessed at T0 (baseline, before use), T1 (7 days after starting whitening strips), T2 (14 days), T3 (21 days), and T4 (28 days): 1. Tooth color measured using the Vita Easyshade V spectrophotometer: 1.1 CIELAB values (L, a, b) 1.2 ?L (change in brightness) 1.3 ?a (change in red/green tone) 1.4 ?b (change in yellow/blue tone) 1.5 ?Eab (overall color change) 1.6 ?WID (Dental Whitening Index) 2. Tooth sensitivity measured using the Schiff score (sensitivity score ranging from 0 to 3)	—

Measure

Time frame

The following primary outcome measures were assessed at T0 (baseline, before use), T1 (7 days after starting whitening strips), T2 (14 days), T3 (21 days), and T4 (28 days): 1. Tooth color measured using the Vita Easyshade V spectrophotometer: 1.1 CIELAB values (L, a, b) 1.2 ?L (change in brightness) 1.3 ?a (change in red/green tone) 1.4 ?b (change in yellow/blue tone) 1.5 ?Eab (overall color change) 1.6 ?WID (Dental Whitening Index) 2. Tooth sensitivity measured using the Schiff score (sensitivity score ranging from 0 to 3)

—

Secondary

Measure	Time frame
Subjective evaluation of tooth color was measured using two shade guides, the Vita Classical (VITA Zahnfabrik) and the Vita Bleachedguide 3D-MASTER (VITA Zahnfabrik) before and after whitening	—

Countries

China

Contacts

Public ContactRuixin Chen

1163686116@qq.com+86 15185209090

Outcome results

None listed

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