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Tooth bleaching

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https://www.readbyqxmd.com/read/29144879/effectiveness-and-impact-of-the-walking-bleach-technique-on-esthetic-self-perception-and-psychosocial-factors-a-randomized-double-blind-clinical-trial
#1
C Bersezio, J Martin, F Peña, M Rubio, J Estay, R Vernal, Ob Oliveira Junior, E Fernández
OBJECTIVE: This trial evaluates the impact of psychosocial and esthetic self-perceptions of patients undergoing nonvital tooth bleaching using the walking bleach technique. We also assessed the clinical effectiveness of bleaching tooth discoloration. METHODS: Fifty volunteers with nonvital tooth discoloration were enrolled. Teeth were randomized into two groups: 35% hydrogen peroxide (n=25) and 37% carbamide peroxide (n=25). Intracoronal bleaching was performed over four sessions using the walking bleach technique...
November 2017: Operative Dentistry
https://www.readbyqxmd.com/read/29130776/new-insights-into-effects-of-aromatic-amino-acids-on-hydroxyapatite
#2
Y R Guo, X Yang, X W Feng, Y Sa, M Wang, P Li, T Jiang
Biomimetics inspired by superstructures and extraordinary properties of teeth have resulted in tooth repair and the generation of novel materials. However, little attention has been paid to tooth color, whose origin remains unknown. Based on recent studies, fluorophores-mainly aromatic amino acids (AAAs) in proteins-might be responsible for tooth color. We synthesized carbonated hydroxyapatite (HA; the mineral phase of teeth) in the presence of different amino acids (AAs; the basic units of protein matrix of teeth) as a simplified model of teeth to explore the color source at the AA level...
November 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/29125909/calcium-phosphate-microspheres-as-a-delivery-vehicle-for-tooth-bleaching-agents
#3
T Mellgren, T Qin, C Öhman-Mägi, Y Zhang, B Wu, W Xia, H Engqvist
Bleaching of vital teeth has become common practice in cosmetic dentistry today. Tooth sensitivity and demineralization of the enamel are, however, common side effects associated with hydrogen and carbamide peroxide bleaching. This study investigated if calcium phosphate microspheres, which have remineralizing properties, could be used as an additive without hindering the diffusion of the bleaching agent and if the spheres could be used as a carrier for carbamide peroxide. A remineralizing agent could increase the safety of bleaching and decrease the severity of its side effects...
November 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/29109320/effects-of-the-ratio-between-pigment-and-bleaching-gel-on-the-fracture-resistance-and-dentin-microhardness-of-endodontically-treated-teeth
#4
Marina Og Galloza, Keren Cf Jordão-Basso, Matheus C Bandeca, Samuel O Costa, Alvaro H Borges, Mateus R Tonetto, Fabio C Tirintan, Kátia C Keine, Milton C Kuga
INTRODUCTION: The aim of this study was to evaluate the effects of bleaching gel using 35% hydrogen peroxide (HP), associated with red carmine pigment (RC), in the 3:1 or 1:1 ratio, on fracture resistance and dentin microhardness of endodontically treated teeth. MATERIALS AND METHODS: A total of 40 lower incisors were endodontically treated and divided into four groups (n = 10), according to the bleaching protocol: G1 (HP3), 35% HP + RC (3:1); G2 (HP1), 35% HP + RC (1:1); G3 (positive), 38% HP; and G4 (negative), unbleached...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29099376/interdental-papilla-formation-after-diastema-closure
#5
Leticia Ferreira de Freitas Brianezzi, Bárbara Margarido Brondino, Giuliana Campo Chaves, Sérgio Kiyoshi Ishikiriama, Adilson Yoshio Furuse
Due to improvements in esthetic dentistry, the number of patients seeking to obtain a more harmonious smile has increased. A 40-year-old woman was referred for treatment because she was dissatisfied with the effect that diastemas and a conoid tooth had on her smile. Her maxillary anterior teeth were relatively short, resulting in a compromised esthetic relationship between height and width. Orthodontic treatment for better distribution of her teeth was recommended to the patient, but she refused, wanting faster and less expensive treatment...
November 2017: General Dentistry
https://www.readbyqxmd.com/read/29079055/bleaching-of-a-discolored-tooth-with-retrieval-of%C3%A2-remnants-after-successful-regenerative-endodontics
#6
Aovana Timmerman, Peter Parashos
INTRODUCTION: This report presents the retrieval of remnants from a discolored mandibular right second premolar (tooth #29) of a 17-year-old female after a successful regenerative endodontic procedure (REP). METHODS: The REP was performed in October 2011. Coronal discoloration became of great concern to the patient at a review visit in 2016. A cone-beam computed tomographic scan was taken to investigate the formation of hard tissues within the root canal as well as a region of no calcified tissue formation...
October 24, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29069156/effectiveness-of-a-new-non-hydrogen-peroxide-bleaching-agent-after-single-use-a-double-blind-placebo-controlled-short-term-study
#7
Mozhgan Bizhang, Julia Domin, Gholamreza Danesh, Stefan Zimmer
INTRODUCTION: Tooth whitening represents perhaps the most common aesthetic procedure in dentistry worldwide. The efficacy of bleaching depends on three aspects: bleaching agent, bleaching method, and tooth color. OBJECTIVE: This in vivo study aimed to examine whitening effects on frontal teeth of the upper and lower jaws using an over-the-counter (OTC) non-hydrogen peroxide bleaching agent in comparison to a placebo after one single use. MATERIAL AND METHODS: Forty subjects (25 female; 15 male) participated in this double-blind randomized placebo-controlled trial...
September 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29056186/stain-removal-and-whitening-by-baking-soda-dentifrice-a-review-of-literature
#8
Yiming Li
BACKGROUND: Tooth discoloration may be caused by intrinsic or extrinsic stains or a combination of both. There are 2 major approaches to removing the stains, including the chemical mechanism using peroxides for tooth bleaching and the mechanical mechanism using abrasives in prophylactic pastes and dentifrices to remove stains, resulting in a whitening effect. Attempts have also been made to add a low concentration of peroxides to dentifrices to enhance their abrasive cleaning to remove tooth stains...
November 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29029752/low-level-laser-therapy-may-not-provide-any-benefit-in-preventing-and-minimizing-tooth-sensitivity-after-dental-bleaching
#9
Romina Brignardello-Petersen
No abstract text is available yet for this article.
October 9, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28976842/effect-of-vital-tooth-bleaching-on-surface-roughness-and-streptococcal-biofilm-formation-on-direct-tooth-colored-restorative-materials
#10
I Wongpraparatana, O Matangkasombut, P Thanyasrisung, M Panich
OBJECTIVE: To compare the effect of simulated bleaching with a 10% carbamide peroxide (CP) or a 40% hydrogen peroxide (HP) system on surface roughness of resin composite and resin-modified glass ionomer cement (RMGI) and streptococcal biofilm formation on these surfaces. METHODS AND MATERIALS: Specimens of nanofilled resin composite and RMGI (n=108 each) were randomly divided into three groups (n=36 each): no treatment control, 10% CP, and 40% HP. The surface roughness values (Ra) were measured before and after treatments...
October 4, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28944380/bleaching-efficacy-of-ozone-hydrogen-peroxide-versus-hydrogen-peroxide-ozone-application
#11
Mahmoud K Al-Omiri, Ra'ed S Abul Hassan, Andrej M Kielbassa, Edward Lynch
OBJECTIVE: To compare the efficacy of tooth bleaching after using ozone, before and after application of hydrogen peroxide (H2O2). METHOD AND MATERIALS: In total, 120 extracted teeth were assigned to three groups (n = 40 in each group). Teeth were bleached using 38% H2O2 application for 20 minutes followed by use of the ozone (delivered by means of the healOzone X4 device) for 60 seconds in group 1, via ozone for 60 seconds then 38% H2O2 for 20 minutes in group 2, and via 38% H2O2 for 20 minutes (plus normal air, delivered by the healOzone X4 device for 60 seconds) in group 3 (control)...
September 22, 2017: Quintessence International
https://www.readbyqxmd.com/read/28898421/tooth-bleaching-with-low-temperature-plasma-lowers-surface-roughness-and-streptococcus-mutans-adhesion
#12
S-H Nam, S-M Ok, G-C Kim
AIM: To evaluate the structural-morphological changes in enamel surface roughness and Streptococcus mutans adhesion after tooth bleaching using plasma in combination with a low concentration of 15% carbamide peroxide (CP). METHODOLOGY: Sixty pairs of premolars were randomly assigned to the treatment groups (n = 30; buccal surface, groups 1A/2A) or controls (n = 30; palatal surface, Groups 1B/2B). Group 1A received a low concentration of 15% CP and low-temperature plasma...
September 12, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28893130/clinical-and-patient-reported-outcomes-of-bleaching-effectiveness
#13
Eva Klaric Sever, Zrinka Budimir, Matea Cerovac, Mario Stambuk, Matej Par, Dubravka Negovetic Vranic, Zrinka Tarle
OBJECTIVE: The objective of this study is to evaluate clinical and patient reported outcomes of different bleaching products. MATERIALS AND METHODS: Thirty participants were randomly divided into three bleaching groups (n = 10). Bleaching was performed with high concentrations of hydrogen peroxide (HP) - Boost (40%) and Dash (30%), and with prefabricated splints Bite&White (6% HP). Tooth colour was measured before, immediately after, and 1 and 6 months after the bleaching by using classical shade guide and spectrophotometer...
September 11, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28891537/clinical-performance-of-a-combined-approach-for-the-esthetic-management-of-fluorosed-teeth-three-year-results
#14
E U Celik, B Yazkan, G Yildiz, A T Tunac
OBJECTIVE: The long-term clinical performance of combined therapy including enamel microabrasion and vital bleaching is debatable due to the abrasion of outer enamel surface. The aim of this longitudinal cohort study was to evaluate the 3-year clinical performance of enamel microabrasion in combination with vital tooth bleaching for the esthetic management of fluorosed teeth. MATERIALS AND METHODS: Fifteen patients with 176 fluorosed incisors and canines were included in this study...
August 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28883600/tooth-bleaching-questions-answered
#15
V B Haywood, R J Sword
Tooth bleaching is an exciting treatment option for patients, which has many treatment options and considerations for the dentist. The purpose of this article is to answer questions in a Q&A fashion about different types of tooth bleaching and their applications to various clinical situations and patients' dental situations.
September 8, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28858418/effect-of-access-design-on-intracoronal-bleaching-of-endodontically-treated-teeth-an-ex-vivo-study
#16
Melissa Andreia Marchesan, Christopher Michael James, Adam Lloyd, Brian Ray Morrow, Franklin García-Godoy
OBJECTIVES: To determine the effect of access design on intracoronal bleaching with 35% carbamide peroxide on discolored teeth. MATERIALS AND METHODS: Forty-two intact maxillary central incisors were selected, sectioned and artificially stained using whole blood. Color measurements were performed with a spectrophotometer: before staining (T1), after staining (T2), at 7 (T3), and 14 (T4) days postbleaching. After T1, specimens were stratified and divided randomly into two groups according to access design (N = 20): G1: contracted endodontic cavity (CEC) access performed with a #848-010M bur and G2: traditional endodontic cavity (TEC) access done with a #1157 bur...
August 31, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28829936/preemptive-use-of-naproxen-on-tooth-sensitivity-caused-by-in-office-bleaching-a-triple-blind-crossover-randomized-clinical-trial
#17
M T Fernandes, S C Vaez, C M Lima, F P Nahsan, A D Loguércio, A L Faria-E-Silva
OBJECTIVES: A triple-blind, randomized, crossover clinical trial evaluated prior use of nonsteroidal anti-inflammatory naproxen on sensitivity reported by patients undergoing in-office tooth bleaching. METHODS AND MATERIALS: Fifty patients were subjected to two sessions of in-office tooth bleaching with 35% hydrogen peroxide in a single application of 40 minutes for two sessions, with an interval of seven days between applications. One hour prior to the procedure, each patient randomly received a single dose of naproxen (500 mg) or placebo...
September 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28829933/effect-of-a-new-bleaching-gel-on-tooth-whitening
#18
T N Barry, C W Bailey, D Ashcraft-Olmscheid, K S Vandewalle
The purpose of this study was to compare the whitening efficacy of a novel bleaching agent containing a unique tribarrel hydremide-peroxide gel (KöR) with a traditional bleaching system of hydrogen peroxide or carbamide peroxide (Opalescence). Bovine incisors were mounted into a custom resin, arch-shaped mounting device. Four groups of 10 teeth were created using mounting devices containing five teeth each. The in-office and home bleaching gels of KöR and Opalescence were applied to the teeth alone and in trays to simulate a combination of in-office and home bleaching or home bleaching only...
September 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28808454/concurrent-effects-of-bleaching-materials-and-the-size-of-root-canal-preparation-on-cervical-dentin-microhardness
#19
Maryam Kazemipoor, Shaghayegh Azad, Farnaz Farahat
INTRODUCTION: The aim of the present study was to evaluate the concurrent effect of root canal preparation size and intra coronal bleaching on dentin microhardness. METHODS AND MATERIALS: Seventy-two intact anterior teeth were root canal treated and randomly divided into two groups (n=36) according to the size of coronal root canal preparation. The coronal portions of the canals were then enlarged with #2 and 4 Peeso reamers, respectively. Following root canal obturation, teeth were assigned into three groups (n=12) to be treated with bleaching agents containing 35% hydrogen peroxide (HP), sodium perborate (SP) and distilled water as control group...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28783465/photobiomodulation-in-the-prevention-of-tooth-sensitivity-caused-by-in-office-dental-bleaching-a-randomized-placebo-preliminary-study
#20
Andrea Paiva Corsetti Calheiros, Maria Stella Moreira, Flávia Gonçalves, Ana Cecília Correa Aranha, Sandra Ribeiro Cunha, Carolina Steiner-Oliveira, Carlos de Paula Eduardo, Karen Müller Ramalho
OBJECTIVE: Analyze the effect of photobiomodulation in the prevention of tooth sensitivity after in-office dental bleaching. BACKGROUND DATA: Tooth sensitivity is a common clinical consequence of dental bleaching. Therapies for prevention of sensitivity have been investigated in literature. MATERIALS AND METHODS: This study was developed as a randomized, placebo blind clinical trial. Fifty patients were selected (n = 10) and randomly divided into five groups: (1) control, (2) placebo, (3) laser before bleaching, (4) laser after bleaching, and (5) laser before and after bleaching...
August 2017: Photomedicine and Laser Surgery
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