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Showing 1-20 of 20 trials
NCT07494682
This clinical study aimed to compare the effectiveness of two minimally invasive approaches for masking molar-incisor hypomineralization (MIH) opacities and to evaluate esthetic perceptions of children and their parents. Participants with MIH-affected incisors received either resin infiltration or etch-bleach-seal treatment. Esthetic outcomes and satisfaction levels were assessed using standardized scales.
NCT06486974
Efficacy of Manual Toothbrushes in Removing Tooth Stains: A 6-Week Clinical Research Study.
NCT06782087
The growing demand for white smile between patients has increased over recent years, the development of techniques and improvement of materials permits searching for beautiful natural smile. The discoloration of teeth might be intrinsic, extrinsic, or combined. A variety of commercial bleaching agents is available. The most common substances used are carbamide peroxide or hydrogen peroxide or a mixture of sodium perborate and hydrogen peroxide.
NCT06904118
The goal of this clinical trial is to learn the effect of Nano-fortified Bleaching on whitening and sensitivity of teeth.The main questions it aims to answer are: Does Nano-fortified Bleaching gel is more effective in enhancing the whitening in comparison to conventional bleaching gel ? Does Nano-fortified Bleaching gel is more effective in declining the sensitivity in comparison to conventional bleaching gel ? Participants will be divided into 2 groups i.e Group A where Nano-fortified Bleaching agent will be employed and Group B where Conventional Bleaching agent without nanoparticles will be used. One application of bleaching for thirty minutes will be carried out . Tooth sensitivity will be measured by VAS Scale having "No Pain" at one-end and "Worst Pain" at opposite-end .Color change will be measured with spectrophotometer.
NCT06802614
Tooth bleaching is widely used to treat the colors of teeth. This study compares the efficiency of two experimental bleaching gels, with and without nanoparticles, and with and without light activation versus two commercial bleaching products of low and high concentrations. The objective is to evaluate tooth color change, sensitivity, and patient satisfaction in patients with moderate yellowing of their teeth. Methods: This is a randomized controlled trial that will include 120 participants aged 18-65 years. Participants will be randomly assigned to one of 12 treatment groups: Gel A (with or without nanoparticles, with or without light), Gel B (with or without nanoparticles, with or without light), Whiteness HP 35% (with or without light) and Whiteness Automixx 6% (with or without light). The primary outcome is tooth color change, measured using a commercially-available equipment. Secondary outcomes will include tooth sensitivity and patient satisfaction. Randomization will be computer-generated. Results: The study is expected to show differences in color change between the experimental and commercial gels. Tooth sensitivity and patient satisfaction will be evaluated to determine the overall effectiveness and safety of the treatments. Conclusions: This trial will provide information into the whitening efficacy of two experimental gels compared to two widely used commercial products.
NCT06791694
This study evaluates the accuracy of tooth color identification skills in the anterior region using a new technique, the button technique, in comparison with other methods.
NCT06125132
Dentists have recently preferred to use composite materials and restorative techniques that allow the use of simplified clinical protocols in order to reduce the time the patient spends in the dentist's chair and minimize technical sensitivity. Color selection in the clinic is a very sensitive process and is affected by environmental factors and operator-related variables. This has led to the development of single-color universal composite resins that aim to facilitate color selection. These materials have a universal opacity and several Vita shades and are recommended by manufacturers to be used in a single color layer that can match different tooth colors. In recent years, monochromatic universal composites have been developed that are supposed to be compatible with all Vita Classic Scale shades from A1 to D4. Manufacturers report that single-color universal composites can be applied to teeth of all colors without using the layering technique using different color composites. Therefore, the aim of this study is to compare the clinical performance of 2 different single-color universal composite resin materials (OMNICHROMA and Zenchroma) in the restoration of non-carious cervical lesions with the control group (Filtek Z250, 3M), which is a multi-color composite resin material, using modified US Public Health Service (USPHS) and World Dental Federation (FDI) criteria.
NCT06666920
The aim of this split-mouth clinical study was to evaluate the tooth color (ΔΕab and ΔΕ00) and whiteness (ΔWID) changes, as well as tooth sensitivity (TS) induced after performing in-office tooth bleaching procedure with or without light-activation of the bleaching gel using Er,Cr:YSGG laser irradiation. Twenty patients with tooth shade A3 or darker were selected for this single-blinded, split-mouth study. The bleaching session was conducted with two 20-min sessions of a 40% hydrogen peroxide bleaching agent assisted by Er,Cr:YSGG laser (2780 nm) irradiation on one side (left) of the maxillary and mandibular teeth and without laser activation on the other hemiarch (right). ΔΕab, ΔΕ00 and ΔWID were evaluated in central incisors and canines using a clinical spectrophotometer immediately, 1 week and 1 month after the bleaching procedure. TS was evaluated pre-operatively and immediately post-operatively using a visual analogue scale (VAS).
NCT06543654
The aim of this study was to conduct a clinical trial utilizing a modified split-mouth, double-blinded, randomized strategy to clinically assess template assisted one shade structural colored versus universal multi-shade direct composite veneers
NCT06532526
The main aim of this randomized controlled clinical trial is to evaluate the efficacy of a bioactive glass desensitizer in reducing tooth sensitivity associated with in-office vital tooth bleaching. In addition, this study aims to compare the effectiveness of the bioactive glass desensitizer with that of a fluoride gel and a gel without desensitizing agent with regard to incidence, intensity, and duration of tooth sensitivity and, finally, to investigate how these agents affect tooth-shade following in-office bleaching. The hypothesis of the study is: There will be no difference in the effect of a bio-active glass desensitizer on tooth sensitivity associated with vital in-office tooth bleaching compared to a fluoride gel and the bio-active glass desensitizer has no effect on the bleaching efficacy.
NCT04875468
The aim of the present study is to evaluate the clinical outcomes (marginal discoloration, marginal adaptation, gingival health, debonding and patient satisfaction) of translucent zirconia crowns bonded by TheraCem (MDP, calcium and fluoride releasing) self-adhesive resin cement compared to multilink self-adhesive resin cement.
NCT04124068
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.
NCT03514797
This parallel, randomized, and controlled clinical trial will assess the effect of a single prior session of in-office dental bleaching on time required to achieve satisfactory tooth color with at-home bleaching. Participants enrolled will randomly allocated to receive or not a single session of dental bleaching with 35% hydrogen peroxide applied for 45 min. Following, all participants will use customized trays filled with 10% carbamide peroxide for 1h per day until obtain satisfactory results. The primary outcome will be the number of days necessary to obtain satisfactory tooth color. Furthermore, tooth sensitivity and color changes measured with spectrophotometer will be assessed.
NCT03688893
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.
NCT03129711
The most frequent reason for failure of laminate veneers made of glass ceramics (feldspathic, leucite based and lithium silicate based ceramics) was fracture of the ceramic, Therefore, ceramic materials that have higher fracture resistance, especially for patients suffering from abnormal occlusion, are needed.
NCT03136276
When restoring teeth with IPS Empress laminate veneers, fracture of restorations may occur. So, material with higher mechanical properties is required. Celtra Duo is a new material with glass ceramics infiltrated by 10% zirconia particles which increase the fracture resistance of the material.
NCT02906982
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.
NCT02683499
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'.
NCT02605239
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.
NCT01231243
There is a controversy in the dentistry literature about how the use of associated light to activate 35% hydrogen peroxide gel during in-office tooth bleaching may increase the bleaching effectiveness. The studies that demonstrated an increased level of bleaching using light activation employed lower hydrogen peroxide gels while the ones reporting no statistical difference employed higher hydrogen peroxide gels. The hypothesis of this study is that the effectiveness of light activation tooth bleaching in dependent on the hydrogen peroxide concentration employed.