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https://www.readbyqxmd.com/read/28327437/evaluating-the-effect-of-antioxidant-agents-on-shear-bond-strength-of-tooth-colored-restorative-materials-after-bleaching-a-systematic-review
#1
REVIEW
Atiyeh Feiz, Hamid Mosleh, Rahman Nazeri
PURPOSE: The main objective of the present study was to make a systematic review of how antioxidant agents affect shear bond strength of tooth-colored restorative materials after bleaching. DATA SOURCES: Electronic search was used to extract the related articles on the targeted key words such as "antioxidant", "dental bleaching" and "shear bond strength" (SBS) from MeSH, PubMed, Medline, and Cochrane electronic data bases. These articles were all published before 2016...
March 10, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28303471/effect-of-acidity-of-in-office-bleaching-gels-on-tooth-sensitivity-and-whitening-a-two-center-double-blind-randomized-clinical-trial
#2
A D Loguercio, F Servat, R Stanislawczuk, A Mena-Serrano, M Rezende, M V Prieto, V Cereño, M F Rojas, K Ortega, E Fernandez, A Reis
OBJECTIVES: The study aimed to compare the tooth sensitivity (TS) and bleaching efficacy of two hydrogen peroxide gels with different pHs (acid pH [Pola Office, SDI] and the neutral pH [Pola Office+, SDI]) used for in-office bleaching. MATERIALS AND METHODS: Fifty-four patients from Brazil and Chile, with right superior incisor darker than A2, were selected for this double-blind, split-mouth randomized trial. Teeth were bleached in two sessions, with 1-week interval...
March 17, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28278191/effect-of-tooth-whitening-strips-on-fatigue-resistance-and-flexural-strength-of-bovine-dentin-in-vitro
#3
Laura E Tam, Namhee Kim, Grace M De Souza
OBJECTIVE: To determine the effects of whitening strips on bovine dentin fatigue resistance and flexural strength in vitro. MATERIALS AND METHODS: A total of eighty bovine dentin specimens (2x2x17mm) were treated with either: control glycerine gel on plastic film wrap or whitening strips containing 9.5% hydrogen peroxide. Treatment was applied for 30 minutes, twice a day, for 1- or 4-weeks. After the last treatment, ten specimens per group were randomly selected to undergo fatigue testing (106 cycles, 3Hz, 20N) while the other ten were subjected to flexural strength testing after ten days of storage in artificial saliva...
2017: PloS One
https://www.readbyqxmd.com/read/28275277/attitudes-of-students-of-differenet-schools-of-university-of-zagreb-on-tooth-bleaching
#4
Dinka Diklić, Eva Klarić Sever, Nada Galić, Jelena Spajić, Katica Prskalo
OBJECTIVE: To compare the awareness that students from four different faculties within the University of Zagreb have of oral health and tooth bleaching procedure. MATERIALS AND METHODS: The study included 158 subjects (both male and female) - 38 students from the School of Dental Medicine and 40 students from each of the following faculties: the School of Medicine, the Faculty of Economics and the Faculty of Civil Engineering. The respondents were asked to fill out the survey with multiple choices by marking the answers they considered correct...
December 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28257258/fifteen-year-clinical-follow-up-of-restoration-of-extensive-cervical-resorption-in-a-maxillary-central-incisor
#5
E G Reston, Rpr Bueno, L Q Closs, J Zettermann
Internal bleaching in endodontically treated teeth requires care and protection to prevent harm to the periodontal ligament due to peroxide and may result in external root resorption. There is a myriad of treatment options when this occurs, such as monitoring, extraction, and subsequent rehabilitation with implants or fixed prosthodontics. In some cases, such as the one described here, a conservative attempt to maintain the tooth as a single structure can be made by sealing the resorptive defect. In the present case, we show a multidisciplinary approach where orthodontics, periodontics, and restorative dentistry were involved in treating the maxillary right central incisor (#8) of a 65-year-old patient with extensive cervical resorption, whose chief complaint was esthetics...
March 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28210444/effect-of-two-different-tooth-bleaching-techniques-on-microhardness-of-giomer
#6
Soodabeh Kimyai, Mahmoud Bahari, Fereshteh Naser-Alavi, Soodabeh Behboodi
BACKGROUND: Tooth bleaching is a safe and conservative treatment modality to improve the esthetic appearance of discolored teeth. One of the problems with the use of bleaching agents is their possible effect on surface microhardness of resin-based materials. The present study was carried out to evaluate the effect of in-office and at-home bleaching on surface microhardness of giomer. MATERIAL AND METHODS: Seventy-five disk-shaped giomer samples (Beautifil II) were prepared and cured with a light-curing unit...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28149472/effect-of-tooth-bleaching-on-the-carbonate-concentration-in-dental-enamel-by-raman-spectroscopy
#7
Tatiana Vargas-Koudriavtsev, Óscar-Andrey Herrera-Sancho
BACKGROUND: There are not many studies evaluating the effects of surface treatments at the molecular level. The aim of this in vitro study was to analyze the concentration of carbonate molecules in dental enamel by Raman spectroscopy after the application of in-office and home whitening agents. MATERIAL AND METHODS: Sixty human teeth were randomly divided into six groups and exposed to three different home bleaching gels (Day White) and three in-office whitening agents (Zoom! Whitespeed and PolaOffice) according to the manufacturer´s instructions...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28149462/effect-of-bleaching-agents-on-enamel-surface-of-bovine-teeth-a-sem-study
#8
Ana-Cristina Pimenta-Dutra, Rodrigo-de Castro Albuquerque, Luís-Fernando-Dos Santos-Alves Morgan, Geraldo-Magela Pereira, Eduardo Nunes, Martinho-Campolina-Rebello Horta, Frank-Ferreira Silveira
BACKGROUND: This study aimed to evaluate changes in the enamel surface of bovine teeth after whitening with exogenous bleaching agents: 10% carbamide peroxide (group 1), 16% carbamide peroxide (group 2) and 35% hydrogen peroxide activated by a light-emitting diode (LED) (group 3). The evaluations were performed by scanning electron microscopy (SEM). MATERIAL AND METHODS: Ninety bovine teeth were divided into five groups (n = 18). The bleaching agents 10% and 16% carbamide peroxide were applied for eight hours a day for 14 consecutive days...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28117858/tooth-bleaching-effects-%C3%A2-on-the-adhesive-interface-%C3%A2-of-composite-restorations
#9
Lorena Silva, Geraldo Thedei, Maria Angélica Menezes-Oliveira, Ruchele D Nogueira, Vinicius Geraldo-Martins
The objective of this study was to evaluate the effects of different bleaching techniques on the tooth-restoration interface of composite restorations. Cavities (3 x 3 x 2 mm) were prepared in 100 bovine incisor fragments, which were etched with a conventional adhesive system and restored with a nanocomposite. The fragments were randomly divided into five groups (n = 20): Control (no bleaching), At-home bleaching (HB) (10% hydrogen peroxide [HP]), In-office bleaching (OB) (35% HP), LED-activated bleaching (LB) (35% HP activated by LED), and Laser-activated bleaching (LaB) (35% HP activated by diode laser, λ = 880 nm)...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28091877/influence-of-enamel-dentin-thickness-on-the-toxic-and-esthetic-effects-of-experimental-in-office-bleaching-protocols
#10
C C de Oliveira Duque, D G Soares, F G Basso, J Hebling, C A de Souza Costa
OBJECTIVES: This paper aims to assess the whitening effectiveness and toxicity of tooth-bleaching protocols applied to enamel/dentin disks simulating mandibular incisors (ICs) and premolars (PMs). MATERIALS AND METHODS: A 10% hydrogen peroxide (H2O2) gel was applied for 3 × 15, 1 × 15, or 1 × 5 min to enamel/dentin disks simulating mandibular ICs and PMs, and the trans-enamel and trans-dentinal diffusion products were applied to human dental pulp cells (1 h)...
January 14, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27997982/influence-of-tooth-bleaching-on-dental-enamel-microhardness-a-systematic-review-and-meta-analysis
#11
REVIEW
Jaine Zanolla, Amanda Brites da Costa Marques, Deisi Carneiro da Costa, Albert Schiaveto de Souza, Margareth Coutinho
BACKGROUND: Several studies have investigated the effect of bleaching on dental tissues. The evaluation of the effect of home bleaching with 10% carbamide peroxide is important for assessing alterations in enamel microhardness that may affect dental health in terms of resistance to masticatory forces. This meta-analysis was performed in order to determine scientific evidence regarding the effects of home vital bleaching with 10% carbamide peroxide gel on the microhardness of human dental enamel...
December 20, 2016: Australian Dental Journal
https://www.readbyqxmd.com/read/27966505/effect-of-nightguard-vital-bleaching-gel-on-the-color-stability-of-provisional-restorative-materials
#12
Salwa Omar Bajunaid
PURPOSE: To assess the hypothesis that there was no difference in effect of 10% and 15% tooth bleaching agents on color stability of materials used for provisional fixed dental prosthesis. METHODOLOGY: Fifteen samples from two materials used for provisional fixed dental prosthesis: methacrylate-based and composite-based materials and 15 preformed polycarbonate crowns soaked in bleaching gel or distilled water. Spectrophotometer recorded color of specimens at baseline, after 3, 7, and 14 days...
September 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/27957283/treatment-and-restoration-of-adult-dentoalveolar-trauma-a-clinical-case-report
#13
Blanca Serra-Pastor, Miguel Penarrocha-Diago, María Penarrocha-Diago, Rubén Agustín-Panadero
Adult dentoalveolar trauma most often occurs in the context of sports activities and traffic accidents. Coronal fractures are the most common type of lesion, followed by tooth luxation. We present the case of a 25-year-old woman who suffered alveolar bone damage and coronal fractures of the upper incisors, with extrusive luxation of the right central incisor, as the result of a fall. On the first visit, manual reduction of the buccal plate was carried out under local anesthesia, with repositioning of the right central incisor and splinting to the neighboring teeth...
December 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27935196/an-in-vitro-evaluation-of-human-enamel-surfaces-subjected-to-erosive-challenge-after-bleaching
#14
Maria de Fátima Carvalho Vasconcelos, Andréa Fonseca-Gonçalves, Adílis Kalina Alexandria de França, Urubatan Vieira de Medeiros, Lucianne Cople Maia, Celso Silva Queiroz
OBJECTIVES: This study aimed to evaluate whether tooth enamel bleached with hydrogen peroxide (H2 O2 ) is more susceptible to erosion when compared with unbleached tooth enamel; and whether the presence of calcium (Ca) in the bleaching gel influenced this process. MATERIALS AND METHODS: Enamel blocks were prepared from human molars, and submitted to surface microhardness analysis (baseline). Blocks were prepared and randomly divided into four treatment groups (n = 20): G1 and G2-bleached with 7...
December 9, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27926747/peroxide-dental-bleaching-via-laser-microchannels-and-tooth-color-measurements
#15
Gregory Altshuler, Andrey Belikov, Alexei Skrypnik, Felix Feldchtein, Alexandra Pushkareva, Ksenia Shatilova, Igor Cernavin, Valery Tuchin
No abstract text is available yet for this article.
December 1, 2016: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/27907894/interventions-for-orthodontically-induced-white-spot-lesions-a-systematic-review-and-meta-analysis
#16
REVIEW
Damian Höchli, Monika Hersberger-Zurfluh, Spyridon N Papageorgiou, Theodore Eliades
BACKGROUND: Although orthodontic white spot lesions (WSLs) are one of the most often and most evident adverse effects of comprehensive fixed appliance treatment, the efficacy of interventions for WSLs has not yet been adequately assessed in an evidence-based manner. OBJECTIVE: Aim of this systematic review was to assess the therapeutic and adverse effects of interventions to treat post-orthodontic WSLs from randomized trials in human patients. SEARCH METHODS: An unrestricted electronic search of eight databases from inception to May 2016...
October 17, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27901225/external-cervical-resorption-diagnostic-and-treatment-tips
#17
Alberto Consolaro
External cervical resorption is caused, almost exclusively, by dental trauma - especially those characterized by concussion - and is a dental disease to be diagnosed and treated accurately by endodontists. However, the vast majority of the cases is initially diagnosed by an orthodontist, due to the imaging possibilities in standardized documentations. Among the causes of external cervical resorption, it is common to mistakenly attribute it to orthodontic treatment, traumatic occlusion or even to chronic inflammatory periodontal disease...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27812622/inflammatory-response-of-human-dental-pulp-to-at-home-and-in-office-tooth-bleaching
#18
Maysa Magalhães Vaz, Lawrence Gonzaga Lopes, Paula Carvalho Cardoso, João Batista de Souza, Aline Carvalho Batista, Nádia Lago Costa, Érica Miranda Torres, Carlos Estrela
Objective: This study evaluated the inflammatory responses of human dental pulp after the use of two bleaching techniques. Material and Methods: Pulp samples were collected from human third molars extracted for orthodontic reasons and divided into three groups: control - no tooth bleaching (CG) (n=7); at-home bleaching with 15% carbamide peroxide (AH) (n = 10), and in-office bleaching with 38% hydrogen peroxide (IO) (n=12). Pulps were removed and stained with hematoxylin-eosin for microscopic analysis of inflammation intensity, collagen degradation, and pulp tissue organization...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27793705/is-resin-infiltration-an-effective-esthetic-treatment-for-enamel-development-defects-and-white-spot-lesions-a-systematic-review
#19
REVIEW
A B Borges, T M F Caneppele, D Masterson, L C Maia
OBJECTIVES: To determine if resin infiltration is an effective treatment for improving the esthetic appearance of tooth discoloration resulting from development defects of enamel (EDD) and white spot lesions (WSL) by means of a systematic review. DATA SOURCES: A comprehensive search was performed in PubMed, Scopus, Web of Science, LILACS, BBO Library, Cochrane Library, and SIGLE, as well as in the abstracts of IADR conference, and in the clinical trials registry...
January 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/27792268/in-office-bleaching-during-orthodontic-treatment
#20
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
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