Tooth discoloration. Posteruptive colour changes of dental hard tissues
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Inclusion criteria: – six maxillary anterior teeth present and free of any restorative material covering more than one-sixth of their labial surfaces; – six anterior teeth should present A3 shade or darker than A3 in Vitaspam classic Shade Guide. – at least 18 years of age, willing to sign a consent form, able to return for periodic examinations, and willing to refrain from use of tobacco products during the study period. Exclusion criteria: – a medical condition that might interfere with the study results or require special attention; – tetracycline-stained teeth or having undergone endodontic therapy in any of the maxillary anterior teeth; – use of professionally applied tooth whiteners within the past five years; – use of any kind of tobacco products during the past 30 days; – pregnant or lactating women.
Exclusion criteria
Exclusion criteria:
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Teeth color changing. Timepoint: 2weeks, 3 month, 6month, 9 month. Method of measurement: digital camera and photoshop software. | — |
Countries
Iran (Islamic Republic of)
Contacts
Shahid Beheshti University of Medical Sciences, School of dentistry