Sound person
Conditions
Interventions
test food, washout 1week, control food
control food, washout 1week, test food
Sponsors
Food manufacturer Graduate School of Dental Medicine, Hokkaido University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Patient as man and woman in its 20 years old to 50s 2. Patient can attach an intraoral device (appliance) which fixed a hydroxyl apatite pellet 3. Patient who can carry it out in total for two days as an experiment day and intake of food five times per day 4. Patient who can obey the compliance during examination
Exclusion criteria
Exclusion criteria: 1. Patient who uses a toothpaste for the purpose of the teeth whitening routinely 2. Smoker 3. Person during surgery treatment for a cavity and periodontal disease 4. Patient who uses chlorhexidine gargle routinely 5. Patient having dry mouth 6. Patient during the pregnancy, the nursing 7. Patient having the food allergy 8. Patient having the metal allergy 9. Patient having an eating disorder
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| comparing the stain removal effect of control food intake group and the food containing sodium metaphosphate intake group by color differences of hydroxyapatite | — |
Countries
Japan
Contacts
Public ContactChiharu Kawamoto, Saori Makino
Graduate School of Dental Medicine, Hokkaido University Department of Restorative Dentistry
Outcome results
None listed