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Tooth whitening

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https://www.readbyqxmd.com/read/27792268/in-office-bleaching-during-orthodontic-treatment
#1
Mauricio Neves Gomes, Hélio Dutra, Alexandre Morais, Ricardo Sgura, André Guaraci Devito-Moraes
OBJECTIVE: To demonstrate that it is possible to pursue teeth whitening treatment protocols during orthodontic treatment with no esthetic loss. CLINICAL CONSIDERATIONS: Many patients undergoing orthodontic treatment desire to have a straight and well aligned dentition, but also whiter teeth. For many years, it was believed that carrying out a whitening treatment with positioned orthodontic brackets in place would result in localized spots on the enamel labial surfaces of teeth...
October 28, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27737352/effect-of-whitening-dentifrices-a-double-blind-randomized-controlled-trial
#2
Karen Pintado-Palomino, Cecília Vilela Matias Vasconcelos, Roberto Juns da Silva, Andre Luiz de Macedo Fressatti, Bianka Jurca Gonçalves da Motta, Fernanda de Carvalho Panzeri Pires-DE-Souza, Camila Tirapelli
The aim of this clinical study was to evaluate tooth color changes (ΔE) and tooth sensitivity (TS) associated with whitening dentifrices. Sixty participants were selected according to inclusion and exclusion criteria and then allocated to three groups (n = 20): Colgate Luminous White (G1), Close Up White Now (G2) and Sorriso dentifrice (G3-control). The participants were instructed to use only the provided dentifrice and toothbrush in standardized oral hygiene procedures for 4 weeks. ΔE was assessed by spectrophotometry (CIELab System) whereas TS was determined by a visual analog scale at baseline and weekly using four assessment points...
October 10, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27723425/efficacy-of-home-use-bleaching-agents-delivered-in-customized-or-prefilled-disposable-trays-a-randomized-clinical-trial
#3
N R Carlos, E C Bridi, Flb Amaral, Fmg França, C P Turssi, R T Basting
The purpose of this study was to evaluate bleaching methods containing hydrogen peroxide (HP) or carbamide peroxide (CP), dispensed in customized or prefilled trays, in terms of color change, tooth sensitivity, gingival irritation, acceptance, and comfort. Seventy-five volunteers were randomly selected and distributed according to the whitening agent (n=25): 10% HP dispensed in prefilled trays (Opalescence Go 10%) and 9.5% HP (Pola Day) and 10% CP both delivered in customized trays (Opalescence PF 10%). HP was applied for 30 min/d for 14 days (d), and CP for 8 h/d for 14 days...
October 10, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27649456/clinical-evaluation-of-genotoxicity-of-in-office-bleaching
#4
M Rezende, J L De Geus, A D Loguercio, A Reis, D Kossatz
OBJECTIVE: The aim of this study was to evaluate the genotoxicity of in-office bleaching with 35% hydrogen peroxide in epithelial cells from the gingival and lip tissues. METHODS AND MATERIALS: Thirty volunteers with central incisors shade A1 or darker were selected for this study. The gingival tissue of the teeth to be bleached was isolated with a light-polymerized resin dam, and the 35% hydrogen peroxide gel was administered during three 15-minute applications over the course of the 45-minute application period...
September 20, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27608553/brexit-implications-for-tooth-whitening
#5
R Yee, V Wong
No abstract text is available yet for this article.
September 9, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27530080/evaluating-a-cobalt-tetraphenylporphyrin-complex-functionalized-with-a-reduced-graphene-oxide-nanocomposite-for-improved-tooth-whitening
#6
I-Hsuan Su, Chen-Fu Lee, Yu-Pin Su, Lai-Hao Wang
OBJECTIVES: To study using cobalt-tetraphenylporphyrin/reduced graphene oxide (CoTPP/RGO), a nanocomposite highly catalytic both for oxidizing and for reducing hydrogen peroxide (H2 O2 ), to whiten teeth. METHODS: Dyes (D&C Red 34, Orange No. 4), tea, and betel nuts (Areca catechu) were used to stain the tooth specimens for three days and subsequently bleached using H2 O2 alone, H2 O2 plus CoTPP, or H2 O2 plus CoTPP/RGO for 0.5-70 hours. The process was photographed using an electronic chromometer and a camera...
September 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27513289/the-effect-of-delivery-system-and-light-activation-on-tooth-whitening-efficacy-and-hydrogen-peroxide-penetration
#7
Soyoung Park, So Ran Kwon, Fang Qian, Philip W Wertz
PURPOSE: To evaluate the whitening efficacy of a new two-layer technology in-office system compared to a conventional gel-type system and determine hydrogen peroxide penetration (HPP) into the pulp cavity. MATERIALS AND METHODS: Extracted molars (n = 60) were assigned to group NC: glycerol gel; group QPRO: 20% HP varnish (Zoom Quick Pro, Philips Oral Healthcare); group ZOOM_NL: 25% HP gel (Zoom Chairside Whitening); and group ZOOM_WL: 25% HP gel (Zoom Chairside Whitening) with light-activation...
September 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27506134/on-the-permanence-of-tooth-bleaching
#8
Yacoub Al-Tarakemah, Brian W Darvell
OBJECTIVE: Bleaching (alias whitening) is increasingly the chosen means of modifying the appearance of teeth for cosmetic reasons. Behbehani et al. (2012) acquired the largest known data set for the effects of bleaching over time (300 patients for ∼1year), but the analysis then was rather superficial and did not exploit the full depth of information available in it. METHODS: Data collected by Behbehani et al. (2012) were re-analysed to explore in detail the variation in outcome between patients and over time...
October 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27473693/factors-affecting-the-quality-of-tooth-enamel-for-in-vivo-epr-based-retrospective-biodosimetry
#9
Céline M Desmet, Philippe Levêque, Bernard Gallez
In vivo electron paramagnetic resonance biodosimetry on tooth enamel is likely to be an important technology for triage of overexposed individuals after a major radiological incident. The accuracy and robustness of the technique relies on various properties of the enamel such as the geometry of the tooth, the presence of restorations, whitening treatments or exposition to sunlight. Those factors are reviewed, and their influence on dosimetry specifically for triage purposes is discussed.
July 29, 2016: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/27352147/a-single-blind-randomized-trial-about-the-effect-of-hydrogen-peroxide-concentration-on-light-activated-bleaching
#10
A P Mena-Serrano, E Garcia, I Luque-Martinez, Rhm Grande, A D Loguercio, A Reis
OBJECTIVE: To compare the bleaching efficacy and tooth sensitivity (TS) of two hydrogen peroxide (HP) concentrations (20% and 35%) used for in-office bleaching associated or not with a light-emitting diode (LED)/laser light activation. METHOD: Seventy-seven patients with a right maxillary canine darker than A3 were selected for this single-blind randomized trial. The participants were distributed in four groups: bleaching with 35% HP, 35% HP + LED/laser, 20% HP, and 20% HP + LED/laser...
June 28, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27290611/comparison-of-efficacy-of-tray-delivered-carbamide-and-hydrogen-peroxide-for-at-home-bleaching-a-systematic-review-and-meta-analysis
#11
REVIEW
Issis Luque-Martinez, Alessandra Reis, Marcos Schroeder, Miguel Angel Muñoz, Alessandro D Loguercio, Danielle Masterson, Lucianne C Maia
OBJECTIVES: The aim of the study was to compare the color change produced by tray-delivered carbamide peroxide [CP] versus hydrogen peroxide products [HP] for at-home bleaching through a systematic review and meta-analysis. MATERIALS AND METHODS: MEDLINE via PubMeb, Scopus, Web of Science, Latin American and Caribbean Health Sciences Literature database (LILACS), Brazilian Library in Dentistry (BBO), and Cochrane Library and Grey literature were searched without restrictions...
September 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27206915/effect-of-enamel-sealants-on-tooth-bleaching-and-on-the-color-stability-of-the-result
#12
N Corcodel, A J Hassel, S Sen, D Saure, P Rammelsberg, C J Lux, S Zingler
The purpose of this in vitro study was to evaluate the effect of enamel sealants on bleaching of natural teeth by use of 40 % hydrogen peroxide in a dental surgery. The color stability of the results from bleaching was, furthermore, determined 10 months after the bleaching procedure. In a standardized setting, four sealants (Pro Seal(®), Light Bond™ Sealant, Protecto(®), and Clinpro™ XT Varnish) were applied to and removed from human teeth in accordance with the manufacturer's instructions. Natural teeth served as medium; half of the teeth were sealed and the others served as controls...
May 20, 2016: Odontology
https://www.readbyqxmd.com/read/27197087/enamel-alteration-following-tooth-bleaching-and-remineralization
#13
Emilija Coceska, Elizabeta Gjorgievska, Nichola J Coleman, Dragana Gabric, Ian J Slipper, Marija Stevanovic, John W Nicholson
The purpose of this study was to compare the effects of professional tooth whitening agents containing highly concentrated hydrogen peroxide (with and without laser activation), on the enamel surface; and the potential of four different toothpastes to remineralize any alterations. The study was performed on 50 human molars, divided in two groups: treated with Opalescence(®) Boost and Mirawhite(®) Laser Bleaching. Furthermore, each group was divided into five subgroups, a control one and 4 subgroups remineralized with: Mirasensitive(®) hap+, Mirawhite(®) Gelleѐ, GC Tooth Mousse™ and Mirafluor(®) C...
June 2016: Journal of Microscopy
https://www.readbyqxmd.com/read/27134991/effect-of-whitening-dentifrice-on-micro-hardness-colour-stability-and-surface-roughness-of-aesthetic-restorative-materials
#14
K B Roopa, N Basappa, A R Prabhakar, O S Raju, Gagandeep Lamba
INTRODUCTION: Whitening agents present in the novel whitening dentifrices may have deleterious effects over the aesthetic restorations. AIM: The present study evaluated the invitro effect of whitening dentifrice on micro hardness, colour stability and surface roughness on aesthetic restorative materials. MATERIALS AND METHODS: Forty specimens each of compomer and of composite were prepared using brass mould. Specimens were equally divided into 4 groups...
March 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27123014/effect-of-in-office-carbamide-peroxide-based-tooth-bleaching-system-on-wear-resistance-of-silorane-based-and-methacrylate-based-dental-composites
#15
Masoumeh Hasani Tabatabaei, Sedigheh Sheikhzadeh, Hamidreza Ghasemi Monfared Rad, Ahmad Beygi, Hossein Bagheri
OBJECTIVES: Several studies have assessed the characteristics and properties of silorane-based composites and adhesive systems. Considering the extensive application of tooth-whitening agents, possible deteriorative effects of tooth bleaching agents on these restorative materials must be studied. The aim of this study was to evaluate the effect of an in-office carbamide peroxide-based tooth bleaching agent on the wear resistance of a silorane-based and a conventional microhybrid dimethyl methacrylate-based dental composite with two different application times...
August 2015: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/27095891/effect-of-whitening-dentifrices-on-the-surface-roughness-of-a-nanohybrid-composite-resin
#16
Gabriela Migliorin da Rosa, Luciana Mendonça da Silva, Márcio de Menezes, Hugo Felipe do Vale, Diego Ferreira Regalado, Danielson Guedes Pontes
OBJECTIVES: The present study verified the influence of whitening dentifrices on the surface roughness of a nanohybrid composite resin. MATERIALS AND METHODS: Thirty-two specimens were prepared with Filtek™ Z350 XT (3M/ESPE) and randomly divided into four groups (n = 08) that were subjected to brushing simulation equivalent to the period of 1 month. The groups assessed were a control group with distilled water (G1), Colgate Total 12 Professional Clean (G2), Sensodyne Extra Whitener Extra Fresh (G3), and Colgate Luminous White (G4)...
April 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/27091347/does-at-home-bleaching-induce-systemic-oxidative-stress-in-healthy-patients
#17
Majid Akbari, AmirHossein Nejat, Nematollah Farkhondeh, Saeedeh Mehraban Moghadam, Seyed Isaac Hashemy, Hamideh Sadat Mohammadipour
BACKGROUND: At-home bleaching is a technique characterized by the use of carbamide peroxide or hydrogen peroxide as a tooth whitening agent. However, no data exists regarding systemic safety of this technique. The aim of this study was to investigate the effect of at-home bleaching on serum redox homostasis. METHODS: Twenty-nine healthy volunteers who requested for tooth whitening participated in this study. Specified bleaching trays were fabricated for the maxilla and mandible arches...
April 19, 2016: Australian Dental Journal
https://www.readbyqxmd.com/read/27079767/time-course-of-potassium-nitrate-penetration-into-the-pulp-cavity-and-the-effect-of-penetration-levels-on-tooth-whitening-efficacy
#18
So Ran Kwon, Deborah V Dawson, Philip W Wertz
OBJECTIVES: To establish time-course of potassium nitrate (PN) penetration into the pulp cavity, and determine whether PN pretreatment would affect whitening efficacy. MATERIALS AND METHODS: Extracted teeth (n = 100) were randomized into five groups of 20 specimens each. Relief ACP (Philips Oral Healthcare, Los Angeles, CA, USA) was applied for 0, 5, 15, 30, and 60 minutes for groups 15, respectively. A nitrate/nitrite assay kit was used for colorimetric detection of nitrate...
March 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/26990460/optical-dental-whitening-efficacy-of-blue-covarine-toothpaste-in-teeth-stained-by-different-colors
#19
Morgana Oliveira, Eduardo Fernández, Janaína Bortolatto, Osmir Oliveira Junior, Matheus Bandeca, Sharukh Khajotia, Fernando Florez
OBJECTIVE: Evaluate the immediate and cumulative optical whitening efficacy of a blue covarine toothpaste. MATERIALS AND METHODS: 180 bovine tooth specimens with similar shade (ΔE < 3.5) were staining of different beverage: black tea(BT), green tea (GT), red wine (RW), orange soda (OS), and brazilian açai juice (AJ), and then submitted to tooth brushing with a blue covarine toothpaste (Op) or a control abrasive toothpaste (Ab). The whitening effect was evaluated at baseline (B), after staining (S), after 1 day (1D) and 7 days of cumulative use of toothpastes (7D)...
March 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/26981757/does-a-toothpaste-containing-blue-covarine-have-any-effect-on-bleached-teeth-an-in-vitro-randomized-and-blinded-study
#20
Janaina Freitas Bortolatto, Andrea Abi Rached Dantas, Ávery Roncolato, Hugo Merchan, Michael Christopher Floros, Milton Carlos Kuga, Osmir Batista de Oliveira Junior
The objective of this study was to analyze the effect of bleaching toothpastes, both conventional and those containing the new whitening agent Blue Covarine, on teeth previously bleached by conventional techniques (in-office and at-home). Squared bovine enamel/dentin blocks (6.0 x 6.0 x 2.0 mm) were randomly distributed in 6 groups (n = 15), according to the technique used to bleach them (in-office: HP35%; at-home: PC10%) and the type of bleaching toothpaste (none: control; Blue Covarine containing: BC; and without Blue Covarine: NBC)...
2016: Brazilian Oral Research
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