Active clinical trials for "Tooth Discoloration"

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.

The present study investigates whether it is possible to achieve equally satisfactory results between 37.5% hydrogen peroxide gel and 6% gel for teeth bleaching. A prospective, double-blind, randomized clinical trial was carried out. A total of 33 patients were selected from the clinic of the Faculty of Dentistry at the University of Chile. The patients included men and women over 18 years old without prior tooth whitening treatments, tooth decay, or restorations of the upper front teeth. The patients had tooth colors of A3 or less according to the Vita Classical scale, which was determined with a Vita Easy® Shade spectrophotometer. The study was carried out with a "split-mouth" design. One side of each mouth was randomly treated with 37.5% hydrogen peroxide, and the other side was bleached with 6% hydrogen peroxide. Each group received 3 to 12 minutes of treatment with the respective gel applications. Two sessions of bleaching were carried out each week. Color was assessed at 7 different sessions for 3 months. The spectrophotometer was used to measure the total variation of color (ΔE) between the baseline (session 1) and different measurement times (sessions 2-7). We compared ΔE for both agents using the Mann-Whitney test.

The purpose of this study was to compare the whitening effect of a toothpaste containing blue pigment with a conventional toothpaste and with at-home tooth bleaching; evaluate the subject's perception about tooth color improvement and; and evaluate the safety and acceptability of these products.

The increasing demand for whitening teeth necessitates requirements and guidelines to ensure the efficacy of products and bleaching techniques. So far there is no comparative study to evaluate the effectiveness of pre-operative air-powder polishing device (APD) and rubber-cup prophylaxis on tooth bleaching in-office. Office-bleaching has some advantages such as avoiding soft tissue irritation, preventing the use of excess material and producing immediate esthetic results. The aim this study is to compare the effects of pre-operative air-powder polishing and rubber-cup prophylaxis on tooth bleaching outcomes. The null hypothesis of this research was that there would be no difference in the change in according to the type of prophylaxis on tooth-bleaching outcomes.△L,△a,△b,△E and △SGU. The results of the study show that both rubber cup prophylaxis and APD devices can be equally used before bleaching treatment as there were no statistical differences in color change.

The aim of the study is to assess the efficacy of Blanx Black Toothpaste against extrinsic stains of teeth. Patients who sign the informed consent will participate to the study. At the baseline, the collection of Plaque Index, modified Lobene index and Bleeding Index will be performed, giving the instruction for a proper home oral hygiene. Professional supragingival and subgingival dental hygiene with piezoelectric will be performed. Then, patients will be randomly divided into two groups: Trial Group will use Blanx Black Toothpaste (2 minutes brushing) twice a day for the all the study duration; Control Group will use Colgate Sensation White Toothpaste (2 minutes brushing) twice a day. Patients will be reevaluated after 10 days, after 1 month and after 3 months, collecting again the indices and improving home oral care.

This study is a single blind, prospective study aimed to evaluate the safety and efficacy of the Silk'n ToothWave Power Toothbrush for stains reduction and improvement of teeth shade.

Objective: To establish the efficacy of laser application with chemical treatment in dental bleaching compared to chemical treatment alone. Methods: The investigators conducted a randomized controlled trial (RCT), single blind (evaluator), in 24 patients randomized to laser and chemical intervention (12) or chemical intervention aloe (12). The commercial products used were Whiteness Hp 35% Hydrogen Peroxide and the LASER of DCM Equipments. The trial outcome measures were obtained using the Vita EasyShade Spectrophotometer and the International CIELCh system. To stablish differences before vs. after treatments and between groups, the T test and chi2 tests were applied.

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.

This double-blind randomized controlled clinical trial aimed to investigate the effect of staining beverage on color alteration of in-office tooth bleaching procedures.

This is a 30 day randomized, parallel comparative trial where participants with tooth shade of C2 or darker will be assigned to one of five groups. The participants will be evaluated for the difference in tooth shade, as determined by the digital VITA Easyshade V (provided by GLO) before the respective whitening regimen (baseline), immediately following the treatment period, and at 30 days (~4 weeks) from end of the treatment intervention.