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https://www.readbyqxmd.com/read/29744085/bleachorexia-an-addictive-behavior-to-tooth-bleaching-a-case-report
#1
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/29742258/neurosensory-analysis-of-tooth-sensitivity-during-at-home-dental-bleaching-a-randomized-clinical-trial
#2
André Luiz Fraga Briso, Vanessa Rahal, Fernanda Almeida de Azevedo, Marjorie de Oliveira Gallinari, Rafael Simões Gonçalves, Paulo Henrique Dos Santos, Luciano Tavares Angelo Cintra
Objective The objective of this study was to evaluate dental sensitivity using visual analogue scale, a Computerized Visual Analogue Scale (CoVAS) and a neurosensory analyzer (TSA II) during at-home bleaching with 10% carbamide peroxide, with and without potassium oxalate. Materials and Methods Power Bleaching 10% containing potassium oxalate was used on one maxillary hemi-arch of the 25 volunteers, and Opalescence 10% was used on the opposite hemi-arch. Bleaching agents were used daily for 3 weeks. Analysis was performed before treatment, 24 hours later, 7, 14, and 21 days after the start of the treatment, and 7 days after its conclusion...
2018: Journal of Applied Oral Science: Revista FOB
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/29700464/in-office-dental-bleaching-with-light-vs-without-light-a-systematic-review-and-meta-analysis
#4
(no author information available yet)
Activation of in-office bleaching gel with light does not improve colour change nor affect tooth sensitivity.  et al.  2018; 70: 1-13.
April 27, 2018: British Dental Journal
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
#5
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
#6
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
#7
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/29625696/walking-bleach-technique-for-endodontically-treated-teeth-with-35-hydrogen-peroxide-and-37-carbamide-peroxide-may-result-in-similar-improvements-in-tooth-color-and-patient-satisfaction
#8
https://www.readbyqxmd.com/read/29570025/effect-of-tooth-whitening-procedures-on-stained-composite-resins
#9
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
#10
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/29551346/tooth-sensitivity-with-a-desensitizing-containing-at-home-bleaching-gel-a-randomized-triple-blind-clinical-trial
#11
Bianca Medeiros Maran, Laína Vochikovski, Diego Rafael de Andrade Hortkoff, Rodrigo Stanislawczuk, Alessandro D Loguercio, Alessandra Reis
OBJECTIVES: Desensitizing agents are usually included in the composition of bleaching agents to reduce bleaching-induced tooth sensitivity (TS). This randomized clinical trial (RCT) evaluated the risk and intensity of TS and color change after at-home bleaching with a desensitizing-containing (3% potassium nitrate and 0.2% sodium fluoride) and desensitizing-free 10% carbamide peroxide (CP) gel (Whiteness Perfect, FGM). METHODS: A triple-blind, within-person RCT was conducted on 60 caries-free adult patients...
March 15, 2018: Journal of 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/29538477/desire-for-tooth-bleaching-and-treatment-performed-in-brazilian-adults-findings-from-a-birth-cohort
#13
Fernando Barcellos da Silva, Luiz Alexandre Chisini, Flávio Fernando Demarco, Bernardo Lessa Horta, Marcos Britto Correa
Population-based studies estimating the prevalence of tooth bleaching desire or the percentage of individuals who had performed this treatment are rare. Thus, the aim of this study was to evaluate the desire to perform tooth bleaching and the prevalence of adult individuals who had performed the treatment and investigate the association of these outcomes. A subsample (n = 536) of the 1982 Pelotas birth cohort in southern Brazil was investigated at the ages 15, 24 and 31 by clinical examinations and interviews...
March 8, 2018: Brazilian Oral Research
https://www.readbyqxmd.com/read/29533717/does-the-use-of-a-walking-bleaching-technique-increase-bone-resorption-markers
#14
C Bersezio, P Vildósola, M Sáez, F Sánchez, R Vernal, O B Oliveira, G Jorquera, J Basualdo, A Loguercio, E Fernández
OBJECTIVE: This randomized clinical trial evaluated the effect of 35% hydrogen peroxide in comparison with 37% carbamide peroxide in a nonvital bleaching technique of "walking bleaching" (four sessions of treatment) on periodontal markers: nuclear factor kappa B-ligand (RANK-L-process of root resorption marker) and interleukin 1β (IL-1β-inflammatory response marker). METHODS AND MATERIALS: Fifty volunteers presenting with discoloration of nonvital teeth and endodontic treatment in good condition participated...
May 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29520944/novel-treatment-of-in-office-tooth-bleaching-sensitivity-a-randomized-placebo-controlled-clinical-study
#15
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/29513635/double-blind-randomized-study-to-evaluate-the-safety-and-efficacy-of-over-the-counter-tooth-whitening-agents-containing-2-9-hydrogen-peroxide
#16
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/29504880/combination-of-acetaminophen-codeine-analgesics-does-not-avoid-bleaching-induced-tooth-sensitivity-a-randomized-triple-blind-two-center-clinical-trial
#17
F M Coppla, M Rezende, E de Paula, P V Farago, A D Loguercio, S Kossatz, A Reis
Bleaching-induced tooth sensitivity (TS) is highly prevalent. OBJECTIVE: This study aimed to determine if the combination of opioids and nonopioids analgesics (Tylex) may provide a better analgesic effect. METHOD: A triple-blind, parallel, randomized two-center clinical trial was conducted with 105 healthy patients who received either a placebo or a combination of acetaminophen/codeine. The first dose of Tylex 30 mg (acetaminophen 500 mg/codeine 30 mg) or placebo was administered one hour before the in-office bleaching (35% hydrogen peroxide), and extra doses were administered every six hours for 48 hours...
March 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29485695/a-colourimetric-evaluation-of-the-effect-of-bacterial-contamination-on-teeth-stained-with-blood-in-vitro-evaluation-of-the-efficacy-of-two-different-bleaching-regimes
#18
S Wang, P Cathro, G Heithersay, N Briggs, J Ratnayake, P Zilm
BACKGROUND: Tooth discolouration could occur due to bacterial contamination in traumatized teeth. Hydrogen peroxide is the commonly used bleaching agent. However, due to concerns over safety, alternative bleaching regimes such as sodium perborate (S) and thiourea-hydrogen peroxide (T) have been investigated. METHODS: Apices resected and pulp extirpated 99 premolars were divided into two groups. Group 1 and 2 was injected with blood and blood/bacteria, stored anaerobically for 35 days...
February 27, 2018: Australian Dental Journal
https://www.readbyqxmd.com/read/29468599/determination-of-nicotine-content-in-teeth-submitted-to-prophylaxis-and-in-office-bleaching-by-gas-chromatography-mass-spectrometry-gc-ms
#19
Juliana L de Geus, Flávio L Beltrame, Mei Wang, Bharathi Avula, Ikhlas A Khan, Alessandro D Loguercio, Stella Kossatz, Alessandra Reis
OBJECTIVES: The objective of this study was to evaluate the dental color exposed to acute cigarette smoke treatment and quantify the amount of nicotine in samples exposed to cigarette smoke, after dental prophylaxis and after in-office bleaching. MATERIALS AND METHODS: Sixty-nine healthy human molars were subjected to cigarette smoke in a cigarette machine. The teeth were divided into three groups: positive control, prophylaxis, and bleaching. Forty cycles of smoke exposition with duration of 15 min each were performed using 10 cigarettes (positive control)...
February 21, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29446268/tooth-color-changes-and-sensitivity-in-patients-undergoing-dental-bleaching-with-10-hydrogen-peroxide-using-customized-trays-or-strips-a-randomized-clinical-trial
#20
Bianca Rossi, Patrícia M Freitas, Tamara K Tedesco, Flávia Gonçalves, Leila S Ferreira
BACKGROUND: This paper aimed to compare the tooth color changes and sensitivity in patients undergoing dental bleaching with 10% hydrogen peroxide using customized trays or strips as delivering systems. METHODS: A total of 50 patients aged between 18-30 years old were assigned into two groups (N.=25) according to the bleaching treatment: tray (TB) or strips (SB). For both techniques, the patients underwent a 30-minute application of 10% hydrogen peroxide twice a day for seven days...
April 2018: Minerva Stomatologica
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