Pulp damage through Vital Tooth bleaching
Conditions
Interventions
Group 1: "In-office bleaching": Philips Zoom in-office whitening gel 25 % H2O2, single application 3 x 15 minutes
Treated premolar will be extracted on the following day.
Group 2: "In-office bleachin
Sponsors
University of ZurichCenter for Dental Medicine (ZZM)Clinic of Preventive Dentistry, Periodontology, and Cariology
Eligibility
Sex/Gender
All
Age
16 Years to 35 Years
Inclusion criteria
Inclusion criteria: Patients aged 16-35, in active orthodontic treatment with vital premolars without pathological finding, which are to be extracted in the course of their orthodontic treatment, prior to application of any orthodontic force
Exclusion criteria
Exclusion criteria: Non-vital / root canal-treated premolars, premolars with open carious lesions or deep fillings, pregnancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Histologic assessment will be performed by one blinded calibrated examiner. Using a light microscope, histopathological events will be evaluated and classified by a descriptive analysis. | — |
Secondary
| Measure | Time frame |
|---|---|
| One day after treatment, the treated premolar will be assessed for following points: Assessment of the bleaching effect, i.e. color change (measured by VITA Easyshade® Advance, Vita Zahnfabrik AG, Germany) Assessment of changes in tooth vitality through cooling spray (positive/negative) Assessment of change of tooth surface temperature through treatment Assessment of tooth sensitivity (VAS) - 1. perceived self-reported sensitivity 2. reaction to gentle air blow | — |
Countries
Croatia, Switzerland
Contacts
Public ContactValerie Steiger-Ronay
University of ZurichCenter for Dental Medicine (ZZM)Clinic of Preventive Dentistry, Periodontology and Cariology
Outcome results
None listed