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https://www.readbyqxmd.com/read/29758152/efficacy-of-teeth-whitening-with-a-mouthwash-in-vitro-and-in-vivo-approaches
#1
Franco Gasparri, Bruce Richard Schemehorn, Andrea Zanardi
OBJECTIVES: Two different studies were conducted to evaluate the whitening efficacy of a mouthwash versus a placebo using in vitro and in vivomodels. The tested mouthwash was formulated with no oxidizing or abrasive agents containing chlorhexidine (CHX) and polyvinylpyrrolidone (PVP). METHODS: The purpose of the in vitro study was to determine whether the mouthwash formulation OC15AB could reduce the accumulation of staining in an accepted stain model. Bovine central incisors were cut to obtain enamel specimens of ~8 × 8 mm2...
March 2018: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/29744085/bleachorexia-an-addictive-behavior-to-tooth-bleaching-a-case-report
#2
Denzel Kun-Tsung Lee, Cameron Kastl, Daniel C N Chan
Bleachorexia, addiction to tooth bleaching, is a behavioral disorder similar to anorexia. The patient feels that their teeth are always not white enough and continues to use whiteners to obtain a "perfect" smile. Such behavior falls under the category of a body dysmorphic disorder and may need medical counseling.
May 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29728537/effect-of-over-the-counter-whitening-products-associated-or-not-with-10-carbamide-peroxide-on-color-change-and-microhardness-in-vitro-study
#3
Ana Lb Jurema, Evaniele S Claudino, Carlos Rg Torres, Eduardo Bresciani, Taciana Mf Caneppele
Aim: The purpose of this in vitro study was to evaluate the color and microhardness of teeth subjected to different over-the-counter (OTC) whitening products in association or not with 10% carbamide peroxide (10% CP). Materials and methods: Enamel-dentin specimens (n = 210) were obtained from bovine incisors and stained. Half of the specimens were then subjected to daily cycles of staining (5 minutes), 10% CP bleaching (8 hours) in association with OTC products, and artificial saliva storage until complete 24 hours, for 2 weeks; the other half was subjected to daily cycles of staining, OTC treatment, and storage in artificial saliva for 12 weeks...
April 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29696420/pre-operative-use-of-dexamethasone-does-not-reduce-incidence-or-intensity-of-bleaching-induced-tooth-sensitivity-a-triple-blind-parallel-design-randomized-clinical-trial
#4
Luiz Augusto da Costa Poubel, Cresus Vinicius Deppes de Gouvea, Fernanda Signorelli Calazans, Etyene Castro Dip, Wesley Veltri Alves, Stella Soares Marins, Roberta Barcelos, Marcos Oliveira Barceleiro
OBJECTIVES: This study evaluated the effect of the administration of pre-operative dexamethasone on tooth sensitivity stemming from in-office bleaching. MATERIALS AND METHODS: A triple-blind, parallel-design, randomized clinical trial was conducted on 70 volunteers who received dexamethasone or placebo capsules. The drugs were administered in a protocol of three daily 8-mg doses of the drug, starting 48 h before the in-office bleaching treatment. Two bleaching sessions with 37...
April 25, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29676980/effect-of-bleaching-gel-viscosity-on-tooth-whitening-efficacy-and-pulp-chamber-penetration-an-in-vitro-study
#5
S R Kwon, Fnu Pallavi, Y Shi, U Oyoyo, A Mohraz, Y Li
OBJECTIVES: Whitening efficacy has been related to hydrogen peroxide (HP) diffusion into tooth structure. However, little information is available relating rheological properties to whitening efficacy. The purpose was to evaluate the whitening efficacy and HP penetration level of a 10% HP gel at three different viscosities and to compare them to a strip delivery system. METHODS AND MATERIALS: Extracted molars (n=120) were randomly assigned into five groups (n=24/ group): NC_MED (negative control; median): medium viscosity gel without HP; LOW: 10% HP gel (low viscosity experimental gel, Ultradent Products Inc); MED: 10% HP gel (medium viscosity experimental gel, Ultradent); HIGH: 10% HP gel (high viscosity gel, Ultradent); and CWS: Crest 3D Whitestrips 1-Hour Express (Procter & Gamble)...
May 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29676979/effectiveness-of-and-dental-sensitivity-to-at-home-bleaching-with-4-and-10-hydrogen-peroxide-a-randomized-triple-blind-clinical-trial
#6
K Chemin, M Rezende, A D Loguercio, A Reis, S Kossatz
OBJECTIVES: To evaluate the risk for and intensity of tooth sensitivity and color change of at-home dental bleaching with 4% and 10% hydrogen peroxide (HP). METHODS: For this study, 78 patients were selected according to the inclusion and exclusion criteria and randomized into two groups: HP 4 (White Class 4%, FGM) and HP 10 (White Class 10%, FGM). In both groups, the at-home bleaching was performed for a period of 30 minutes twice a day for two weeks. The color was assessed by Vita Classical, Vita Bleachedguide 3D-MASTER and spectrophotometer Vita Easyshade (Vita Zahnfabrik) at baseline, during bleaching (first and second weeks) and after bleaching (one month)...
May 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29624630/changes-in-quality-of-life-induced-by-tooth-whitening-are-moderated-by-perfectionism-a-randomized-double-blind-placebo-controlled-trial
#7
Daniela Kovacevic Pavicic, Marija Kolceg, Vlatka Lajnert, Andrej Pavlic, Martina Brumini, Stjepan Spalj
PURPOSE: To explore the influence of perfectionism on the short-term changes in satisfaction with smile esthetics and quality of life (QoL) induced by tooth whitening. MATERIALS AND METHODS: A total of 60 subjects were analyzed: 30 in the active group, in which the subject's anterior teeth were whitened with a photoactivated gel, and 30 in the placebo group. The Smile Esthetics-Related Quality of Life and Multidimensional Perfectionism Scale questionnaires were administered to all participants...
April 6, 2018: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29603865/randomized-clinical-study-of-alterations-in-the-color-and-surface-roughness-of-dental-enamel-brushed-with-whitening-toothpaste
#8
Lourenço de Moraes Rego Roselino, Camila Tirapelli, Fernanda de Carvalho Panzeri Pires-de-Souza
OBJECTIVES: This clinical study evaluated the influence of whitening toothpaste on color and surface roughness of dental enamel. MATERIALS AND METHODS: Initially, the abrasiveness of the toothpastes used (Sorriso Dentes Brancos [SDB]; Colgate Luminous White and Close up White Now) was tested on 30 (n = 10) plexiglass acrylic plates that were submitted to mechanical tooth brushing totalizing 29,200 cycles. Subsequently, 30 participants were selected, and received a toothbrush and nonwhitening toothpaste (SDB)...
March 30, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29597039/3d-image-analysis-of-the-impact-of-toothpaste-abrasivity-on-the-progression-of-simulated-non-carious-cervical-lesions
#9
Alaa H Sabrah, Cecilia P Turssi, Frank Lippert, George J Eckert, Adam B Kelly, Anderson T Hara
OBJECTIVES: To investigate the effect of toothpaste abrasive level on the progression of non-carious cervical lesions (NCCLs) using 3D-image subtraction. METHODS: Upper first premolars were allocated into seven groups (n = 16) of toothpaste/abrasive slurries: A-Zeodent113/5%, B-Zeodent124/10%, C-Zeodent103/15%, D-Sensodyne Pronamel, E-Crest Cavity-Protection, F-Crest Pro-Health-Whitening, and G-Deionized water (DIW). Teeth were mounted on acrylic blocks, and their root surfaces covered with acrylic resin, except for 2-mm near the cemento-enamel junction that was exposed to toothbrushing...
March 26, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29570025/effect-of-tooth-whitening-procedures-on-stained-composite-resins
#10
J W Reinhardt, M M Balbierz, C M Schultz, B Simetich, M W Beatty
In this laboratory study, a composite resin was stained to a visibly discernible level using both coffee and red wine over 14 days (change was considered clinically noticeable and significant when ΔEab *≥2.7). Color change was measured at one, three, seven, and 14 days of staining. Although the nature of color change was different for the two staining solutions, the overall degree of staining (ΔEab *) rendered by either coffee or wine at each time interval was not significantly different ( p≥0.05). Four whitening protocols were applied to stained composites...
March 23, 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29570018/preventive-use-of-a-resin-based-desensitizer-containing-glutaraldehyde-on-tooth-sensitivity-caused-by-in-office-bleaching-a-randomized-single-blind-clinical-trial
#11
Acs Diniz, Snl Lima, RRdJ Tavarez, A H Borges, Scs Pinto, M R Tonetto, A D Loguercio, M C Bandéca
OBJECTIVE: To evaluate the risk and intensity of bleaching-induced tooth sensitivity (TS) after in-office bleaching following topical application of a resin-based glutaraldehyde desensitizer. METHODS: Thirty-three patients were randomly assigned to the experimental (Gluma Desensitizer Liquid, Heraeus Kulzer, Hanau, Germany) and placebo groups. The placebo or Gluma Desensitizer Liquid was applied for one minute prior to application of an in-office bleaching gel. Bleaching was performed with 35% hydrogen peroxide gel (three applications × 15 minutes each) over two sessions, one week apart...
March 23, 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29550020/effect-of-topical-application-of-dipyrone-on-dental-sensitivity-reduction-after-in-office-dental-bleaching-a-randomized-triple-blind-multicenter-clinical-trial
#12
Márcia Rezende, Kaprice Chemin, Savil Costa Vaez, Aline Carvalho Peixoto, Jéssica de Freitas Rabelo, Stella Sueli Lourenço Braga, André Luis Faria-E-Silva, Gisele Rodrigues da Silva, Carlos José Soares, Alessandro D Loguercio, Alessandra Reis
BACKGROUND: Tooth sensitivity commonly occurs during and immediately after dental bleaching. The authors conducted a trial to compare tooth sensitivity after in-office bleaching after the use of either a topical dipyrone or placebo gel. METHODS: A split-mouth, triple-blind, randomized, multicenter clinical trial was conducted among 120 healthy adults having teeth that were shade A2 or darker. The facial tooth surfaces of the right or left sides of the maxillary arch of each patient were randomly assigned to receive either topical dipyrone or placebo gel before 2 in-office bleaching sessions (35% hydrogen peroxide) separated by 2 weeks...
March 14, 2018: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29520944/novel-treatment-of-in-office-tooth-bleaching-sensitivity-a-randomized-placebo-controlled-clinical-study
#13
Deepak Mehta, S Jyothi, Prashant Moogi, Werner J Finger, Keiichi Sasaki
OBJECTIVES: Aim of this clinical trial was to investigate the effect of a calcium phosphate based desensitizer paste applied prior to in-office tooth whitening on bleaching sensitivity (BS). METHODS: This crossover study was designed as randomized double-blinded, placebo-controlled trial. The desensitizer paste Teethmate AP (TAP) contains tetracalcium phosphate and dicalcium phosphate anhydrous in glycerol and polyethylene glycol, whereas placebo (PLA) is a calcium phosphate free analog...
March 9, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29519978/the-in-vitro-evaluation-of-the-effect-of-xyliwhite-probiotic-and-the-conventional-toothpastes-on-the-enamel-roughness-and-microhardness
#14
E Arat Maden, C Altun, G Guven Polat, F Basak
Aim: The aim of this study was to evaluate the effect of fluoride, Xylitol, Probiotic, and Whitening toothpastes on the permanent teeth enamel roughness and microhardness. Materials and Methods: One hundred and twenty teeth were randomly divided into 2 groups, each group having 60 samples. G1: The group in which enamel roughness was examined (n = 60). G2: The group in which enamel microhardness was examined (n = 60). Then, these groups were randomly divided into 4 groups among themselves (n = 15)...
March 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29513635/double-blind-randomized-study-to-evaluate-the-safety-and-efficacy-of-over-the-counter-tooth-whitening-agents-containing-2-9-hydrogen-peroxide
#15
Y M Kim, A N Ha, J W Kim, S J Kim
OBJECTIVES: In this double-blind randomized study, we evaluated the safety and efficacy of over-the-counter (OTC) bleaching products that included 2.9% hydrogen peroxide (H2 O2 ) with two methods of application: strip and paint-on. METHODS AND MATERIALS: A commonly used product was selected for each type (strip and paint-on) of OTC bleaching agent. In total, 75 volunteers were assigned randomly into five groups: two test groups (strip and paint-on), two negative control groups (products without H2 O2 ), and one positive control group (dentist-supervised home bleaching)...
May 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29513242/effectiveness-of-whitening-mouthwashes-on-tooth-color-an-in-vitro-study
#16
Flàvia Pardo Salata Nahsan, Maria Janete Oliveira Reis, Luciana Fàvaro Francisconi-Dos-Rios, Luciana Vasconcelos Leão, Luiz Renato Paranhos
Products for tooth whitening (or tooth color maintenance) that improve smile esthetics have become increasingly popular due to their easy accessibility and low cost. This in vitro study assessed the effect of whitening mouthwash on bovine tooth color. Forty-eight bovine teeth were divided into 3 immersion groups: SL, artificial saliva (control); CLW, Colgate Luminous White; and OBW, Oral-B 3D White. After prophylaxis with pumice, the initial color was measured using the CIE L*a*b* system. Teeth were immersed in the solutions for 2 minutes, 3 times per day, for 30 days...
March 2018: General Dentistry
https://www.readbyqxmd.com/read/29475861/inactivation-efficacy-of-nonthermal-plasma-activated-solutions-against-newcastle-disease-virus
#17
Xia Su, Ying Tian, Hongzhuan Zhou, Yinglong Li, Zhenhua Zhang, Beiyu Jiang, Bing Yang, Jue Zhang, Jing Fang
In recent years, plasma-activated solutions (PASs) have made good progress in the disinfection of medical devices, tooth whitening, and fruit preservation. In this study, we investigated the inactivation efficacy of Newcastle disease virus by PASs. Water, 0.9% NaCl, and 0.3% H2 O2 were excited by plasma to obtain the corresponding solutions PAS(H2 O), PAS(NaCl), and PAS(H2 O2 ). The complete inactivation of virus after PAS treatment for 30 min was confirmed by the embryo lethality assay (ELA) and hemagglutination (HA) test...
May 1, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29439773/effect-of-an-experimental-desensitizing-agent-on-reduction-of-bleaching-induced-tooth-sensitivity-a-triple-blind-randomized-clinical-trial
#18
Sibelli Olivieri Parreiras, Anna Luiza Szesz, Fabiana Madalozzo Coppla, Eveline Claudia Martini, Paulo Vitor Farago, Alessandro D Loguercio, Alessandra Reis
BACKGROUND: In this randomized study, split-mouth, triple-blind clinical trial, the authors evaluated the efficacy of a desensitizing gel that contained 5% potassium nitrate and 5% glutaraldehyde applied before in-office bleaching with 35% hydrogen peroxide (HP). METHODS: Treatment with the desensitizing or placebo control gels was randomly assigned to one-half of the maxillary teeth of 42 patients in a split-mouth design. The desensitizing gels were applied and maintained in contact with the tooth enamel for 10 minutes, followed by 2 HP bleaching sessions separated by 1 week...
April 2018: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29417573/smile-aesthetics-satisfaction-scale-development-and-validation-of-a-new-brief-five-item-measure-of-satisfaction-with-smile-aesthetics-in-adults-and-the-elderly
#19
Vlatka Lajnert, Daniela Kovacevic Pavicic, Andrej Pavlic, Alessandra Pokrajac-Bulian, Stjepan Spalj
OBJECTIVE: To create and validate a brief questionnaire designed for the assessment of satisfaction with smile aesthetics and to test its efficiency as a patient-centred outcome measure of aesthetic interventions in dentistry. MATERIALS AND METHODS: A team of three specialists - two from prosthodontics and one psychologist - used a self-evaluation scale consisting of five elements in order to rate self-perceived smile aesthetics. A total of 671 subjects (63% female), 18-86 years of age, were included in the investigation...
February 7, 2018: International Dental Journal
https://www.readbyqxmd.com/read/29412363/preemptive-use-of-etodolac-on-tooth-sensitivity-after-in-office-bleaching-a-randomized-clinical-trial
#20
RANDOMIZED CONTROLLED TRIAL
Savil Costa Vaez, André Luís Faria-E-Silva, Alessandro Dourado Loguércio, Micaelle Tenório Guedes Fernandes, Flávia Pardo Salata Nahsan
This study determined the effectiveness of the preemptive administration of etodolac on risk and intensity of tooth sensitivity and the bleaching effect caused by in-office bleaching using 35% hydrogen peroxide. Fifty patients were selected for this tripleblind, randomized, crossover, and placebo-controlled clinical trial. Etodolac (400 mg) or placebo was administrated in a single-dose 1 hour prior to the bleaching procedure. The whitening treatment with 35% hydrogen peroxide was carried out in two sessions with a 7-day interval...
February 1, 2018: Journal of Applied Oral Science: Revista FOB
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