tooth extrinsic stain
Conditions
Interventions
Group A:tea subgroup: 104 tobacco subgroup: 99 tea A: 25
tobacco A: 24 tea B: 26
tobacco B: 25 tea C: 26
tobacco C: 25 tea D: 27: tobacco D: 25
Group B:adult with tooth extrinsic stain. A: perlite whitening toothpaste commercially available B: perlite whitening toothpaste containing 5% d-limonene C:regular toothpaste containing 5% d-limonene
Group C:tea subgroup: 207 tobacco subgroup: 201 tea A: 52
tobacco A: 49 tea B: 50
tobacco B: 51 tea C: 52
tobacco C: 51 tea D: 53
tobacco D: 50
Group E:tea subgroup: 100 tobacco subgroup: 98 tea A: 26
tobacco A: 25 tea B: 24
tobacco B: 24 tea C: 25
tobacco C: 24 tea D: 25
tobacco D: 25
Group D:tea subgroup: 206 tobacco subgroup: 199 tea A: 52
tobacco B: 51 tea C: 51
tobacco C: 49 tea D: 53: tobacco D: 50
Sponsors
State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University
Eligibility
Sex/Gender
All
Age
27 Years to 65 Years
Inclusion criteria
Inclusion criteria: The paticipants should be in good general health; smoking or tea drinking habits (we defined tobacco consumed>=20/per day as smoking habit, and tea drinking instead of usual water intake as tea drinking habit); a baseline total stain score>=2.0 as measured by the Lobene Stain index; at least 10 natural teeth in the maxillary and mandibular anterior region.
Exclusion criteria
Exclusion criteria: dental professionals or dental students; any evidence of neglected dental health (i.e. severe periodontal disease or rampant caries), any medical condition or history requiring prophylactic antibiotic coverage prior to dental treatment; any systemic condition that might influence or preclude subject participation in the study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Lobene Stain index; | — |
Countries
China
Contacts
Public ContactHao Yuqing
Outcome results
None listed