View clinical trials related to Tooth Discoloration.
Filter by:This double-blind randomized controlled clinical trial aimed to investigate the effect of whitening dentifrices on the clinical efficiency of in-office tooth bleaching procedures.
The purpose of this study is to evaluate the efficacy of a novel gum health formulation, when used in an intra-oral device or on a toothbrush, for teeth whitening and clinical improvements in periodontal diseases.
Compare teeth sensitivity using bleaching protocol with different light intensities (Philips Zoom!™ White Speed whitening gel and lamp, Discus Dental, Inc., Culver City, CA, USA.) versus bleaching protocol with the same light intensity (Philips Zoom!™ Advanced Power whitening gel and lamp, Discus Dental, Inc., Culver City, CA, USA.).
The investigators aim to evaluate a sage-based mouthrinse (Dr. Hauschka Med, Mundspülung Salbei) whether it is less or equal effective in alleviating inflammatory signs of intra-oral mucosa and gingiva than an water/alcohol-based taste adjusted placebo in patients dependent on ADL. Randomization in treatment A (mouthwash with active agent, n=24) or treatment B (placebo mouthwash, n=24) Supervised use of mouthwash A or mouthwash B over 6 weeks 1x/day additional to habitual oral hygiene protocol. The main outcome parameter will be Sulcus Bleeding Index SBI.
To evaluate the efficacy, safety and impact on quality of life related to oral health of home and office tooth whitening techniques in young individuals.
OBJECTIVES: The aim of this clinical randomized, double-blind clinical study was to assess the markers levels of RANKL IL-1B and OPGL, involved in the external cervical resorption as a primary outcome, and change color effectiveness in patients undergoing intracoronary bleaching. METHOD: 46 volunteers (50 teeth) participated with discoloration on non-vital teeth, with the endodontic treatment in good condition. Patients were randomly located into two study groups according to product G1 = 35% hydrogen peroxide (n = 25) and G2 = 37% carbamide peroxide (n = 25). The intracameral bleaching was performed with a walking bleaching technique of 4 sessions Gingivocrevicular transudate samples were taken to determine levels of Il1b, RANKL, and OPGL with absorbent paper (Periopaper®), they are obtained from six sites per tooth bleaching: 3 vestibular and three palatine (mesial, middle and distal), in 6 opportunities: Baseline, after 4-sessions of intracameral bleaching and a one week after treatment. Total proteins are quantified by Bradford ® system and from the eluted sample of RANKL, IL 1b and OPGL levels measured by ELISA (Quantikine®; R&D Systems Inc.). The color was evaluated in each session with Vita EasyShade spectrophotometer is used with the CIEL*a*b system to measure the total variation in color (ΔE), between the baseline and the different evaluation times.
The aim of the study is to assess the marginal fit following preparation finishing with ultrasonic tips of porcelain veneers compared to the ordinary preparation using burs only. Two-hundred and forty crowns prepared to receive porcelain veneers (in a split-mouth design). On one side of the mouth, the prepared surfaces will be finished with ultrasonic tips. Marginal fit is measured by a 'cement replica technique'.
58 patients between 18 and 76 years who attended the Operative Dentistry Clinic at Dental School, Universidad de Chile, were included in the study. Those patients were bleaching and included in this study and signed a consent form. The patients were treated with 10% carbamide peroxide (CP) gel (Whiteness Perfect, FGM) to each subject with verbal instructions for 3 weeks with daily applications of 1 hour according to manufacturers indications , before and after this procedure was applied again the OHIP-Esthetics , PIDAQ and OES questionnaire form, had 30 minutes to answer it, were completed before , immediately after and one month control post-bleaching procedure.
The purpose of this clinical study was to evaluate, the effectiveness and sensitivity post-treatment of a 6% hydrogen peroxide with nitrogen-doped titanium dioxide light activated bleaching agent, the impact of shorter interval times on tooth sensitivity and to compare the efficacy with 2 different application protocols. This is a clinical randomized double-blind split-mouth study. 31 patients were treated with: one upper hemi arcade with one application of 36 minutes and the other hemi arcade with 3 applications of 12 minutes each with a 6% hydrogen peroxide. Two sessions were appointed with 48h of intervals between them. Tooth colour was registered by VITA Classical amd VITA Bleach guide by two blinded assessors in the beginning, immediately after each session. Tooth colour variation and sensitivity were compared between both application protocols
The aim of the present study was to evaluate colorimetric changes and tooth sensitivity in young patients submitted to tooth bleaching with 20% and 35% hydrogen peroxide.