keyword
https://read.qxmd.com/read/38537029/influence-of-repositioning-guides-color-and-usage-on-precision-in-tooth-color-measurement-with-a-clinical-spectrophotometer
#1
JOURNAL ARTICLE
Tauan Rosa Santana, Paula Fernanda Damasceno Silva, Márcia Luciana Carregosa Santana, Clara Lemos Leal Barata de Mattos, André Luis Faria-E-Silva
BACKGROUND: Repositioning guides are commonly employed in clinical studies to ensure consistent tooth color measurements. Yet, their influence on measured color remains uncertain. OBJECTIVE: This study evaluated the impact of repositioning guides' color and usage on tooth color measurement using a clinical spectrophotometer. METHODOLOGY: In total, 18 volunteers participated in this study, in which the color of their upper left central incisor and upper left canine was measured with or without repositioning guides (control)...
2024: Journal of Applied Oral Science: Revista FOB
https://read.qxmd.com/read/38517070/color-change-of-laminate-veneer-restorations-applied-to-bleached-teeth
#2
JOURNAL ARTICLE
Buse Atak Ay, Sebnem Begum Turker
OBJECTIVE: The aim of this study was to examine the color stability of laminate veneer restorations restored with CAD/CAM material applied to bleached teeth. MATERIAL AND METHODS: In this study, 80 upper central teeth extracted because of periodontal, orthodontic or trauma problems were used. The teeth were embedded in acrylic blocks and divided into 8 groups (n=10). Groups A, B, C and D were bleached with vital bleaching agent before preparation, and teeth were prepared for laminate veneer restorations...
March 22, 2024: International Journal of Computerized Dentistry
https://read.qxmd.com/read/38515110/aesthetic-impact-of-resin-infiltration-and-its-mechanical-effect-on-ceramic-bonding-for-white-spot-lesions
#3
JOURNAL ARTICLE
Jiaen Shu, Yijia Huang, Xueying Ma, Zhonghua Duan, Pei Wu, Sijing Chu, Yuqiong Wu, Yuhua Wang
BACKGROUND: Treating white spot lesions (WSLs) with resin infiltration alone may not be sufficient, raising questions about its compatibility with other treatments amid controversial or incomplete data. Therefore, this study aimed to assess the aesthetic feasibility of resin infiltration combined with bleaching, as well as its potential mechanical effect on ceramic bonding to WSLs. METHODS: One hundred and fifty flat enamel surfaces of bovine incisors were prepared...
March 21, 2024: BMC Oral Health
https://read.qxmd.com/read/38509406/at-home-bleaching-with-carbamide-peroxide-with-concentrations-below-10-bleaching-efficacy-and-permeability-in-the-pulp-chamber
#4
JOURNAL ARTICLE
Deisy Cristina Ferreira Cordeiro, Michael Willian Favoreto, Gabrielle Gomes Centenaro, Fernanda Novak Gumy, Alessandro D Loguercio, Christiane Philippini Ferreira Borges, Alessandra Reis
OBJECTIVES: To evaluate the bleaching efficacy and permeability of hydrogen peroxide (HP) in the pulp chamber of human teeth bleached with lower concentrations of carbamide peroxide gel (4%, 5% and 7% CP). MATERIALS AND METHODS: Bleaching gels with lower concentrations were formulated and a commercial standard gel, 10% CP, was used as a reference. Fifty-six human premolars were randomly divided into four groups. Applications of the bleaching gel were made for 3 h for 21 days...
March 21, 2024: Clinical Oral Investigations
https://read.qxmd.com/read/38508441/effect-of-whitening-toothpastes-with-different-hydrogen-peroxide-concentrations-penetration-into-the-pulp-chamber-and-color-change
#5
JOURNAL ARTICLE
Laryssa M M Barbosa, Taynara S Carneiro, Michael W Favoreto, Christiane P F Borges, Alessandra Reis, Alessandro D Loguercio, Sônia S Meireles
OBJECTIVES: This study evaluated the efficacy of simulated brushing with toothpastes containing different concentrations of hydrogen peroxide (HP) in pulp chamber penetration and color change. Also, physical-chemical properties (concentration, pH and viscosity) were evaluated. METHODS: Forty-nine premolars were divided into seven groups (n = 7): untreated (control); whitening gel (White Class 6%, 6%BG) with one 90 min application (6%BG 90min) and 14 applications of 90 min (6%BG 14×90min); toothpastes (Colgate Luminous White Glow 3%, 3%TP; Crest 3D White Brilliance 4%, 4%TP; Colgate Optic White Pro Series 5%, 5%TP) and 6%BG toothbrushing for 14 applications of 90 s...
March 18, 2024: Journal of Dentistry
https://read.qxmd.com/read/38477344/biological-action-of-bleaching-agents-on-tooth-structure-a-review
#6
REVIEW
Walessa Alana Bragança Aragão, Victória Santos Chemelo, Cristiane de Melo Alencar, Cecy Martins Silva, Sofia Pessanha, Alessandra Reis, Renata Duarte de Souza Rodrigues, Rafael Rodrigues Lima
The use of bleaching agents to remove stains is one of the main dental procedures to improve the aesthetics of teeth. This review presents the main agents used for tooth whitening, existing clinical protocols, and the structural changes that may occur through their use. The main bleaching agents consist of hydrogen peroxide and carbamide peroxide, which are used in bleaching techniques for vital teeth. These techniques can be performed in the office by a professional or by the individual in a home en-vironment under professional guidance...
February 28, 2024: Histology and Histopathology
https://read.qxmd.com/read/38475979/effect-of-the-type-of-application-tip-for-35-hydrogen-peroxide-on-bleaching-efficacy-and-tooth-sensitivity-a-randomized-clinical-trial
#7
JOURNAL ARTICLE
Gabrielle G Centenaro, Michael W Favoreto, Deisy C F Cordeiro, Fernanda N Gumy, Amanda G Machado, Gabriel D Cochinski, Alessandra Reis, Alessandro D Loguercio
OBJECTIVES: Evaluate the bleaching efficacy (BE) and tooth sensitivity (TS) of in-office bleaching using different application tips. METHODS: Forty-eight participants were selected (split-mouth), one to receive bleaching with an attached brush tip and one with a conventional tip. The procedure was performed with Whiteness Automixx Plus 35%. The BE was evaluated at the beginning, weekly, one and 12 months post-bleaching with a Vita Easyshade spectrophotometer (ΔE*ab , ΔE00 , and WID ) and with Vita classical A1-D4 and Vita Bleachedguide shade guides units (ΔSGU)...
March 12, 2024: Journal of Esthetic and Restorative Dentistry
https://read.qxmd.com/read/38458078/influence-of-coating-dental-enamel-with-a-tif-4-loaded-polymeric-primer-on-the-adverse-effects-caused-by-a-bleaching-gel-with-35-h-2-o-2
#8
JOURNAL ARTICLE
Victória Peruchi, Rafael Antonio de Oliveira Ribeiro, Igor Paulino Mendes Soares, Lídia de Oliveira Fernandes, Juliana Rios de Oliveira, Maria Luiza Barucci Araújo Pires, Josimeri Hebling, Diana Gabriela Soares, Carlos Alberto de Souza Costa
OBJECTIVE: To evaluate whether coating enamel with a polymeric primer (PPol) containing titanium tetrafluoride (TiF4 ) before applying a bleaching gel with 35% H2 O2 (35% BG) increases esthetic efficacy, prevents changes in morphology and hardness of enamel, as well as reduces the cytotoxicity from conventional in-office bleaching. MATERIALS AND METHODS: Standardized enamel/dentin discs were stained and bleached for 45 min (one session) with 35% BG. Groups 2TiF4 , 6TiF4 , and 10TiF4 received the gel on the enamel previously coated with PPol containing 2 mg/mL, 6 mg/mL, or 10 mg/mL, respectively...
March 2, 2024: Journal of the Mechanical Behavior of Biomedical Materials
https://read.qxmd.com/read/38442471/role-of-induced-nitric-oxide-synthases-in-orofacial-nociception-discomfort-after-dental-tooth-bleaching-with-hydrogen-peroxide
#9
JOURNAL ARTICLE
Marcílio Rodrigues Pinto, Kirlya Isabel da Silva Medeiros, Letícia Menezes Maia, Antonio Alexandre Coelho, Ana Paula Negreiros Nunes Alves, Caio Ferreira Freire Caetano, Karine Cestaro Mesquita, Paulo Goberlânio de Barros Silva, Fabricio Bitu Sousa
OBJECTIVE: To evaluate the role of induced nitric oxide synthase (iNOS) in nociception/orofacial discomfort in rats submitted to tooth whitening with hydrogen peroxide (H₂O₂). DESIGN: Wistar rats were divided into three groups (n = 24/group): a sham group not submitted to whitening treatment, a saline group submitted to whitening treatment, and a test group submitted to whitening treatment and blockade of iNOS with aminoguanidine 50 mg/kg/day...
March 2, 2024: Archives of Oral Biology
https://read.qxmd.com/read/38436607/different-effects-of-whitening-treatment-on-natural-teeth-and-teeth-treated-with-icon-resin-an-experimental-study-in-vitro
#10
JOURNAL ARTICLE
R Favero, M Pellarin, D Bresolato, A Di Fiore, A Zuccon, A Volpato, L Favero
BACKGROUND: It is quite common for white spots to develop on a tooth, due sometimes to a defective formation of the enamel layer, and sometimes to patches of demineralisation as a result of poor oral hygiene during orthodontic treatment with fixed braces. ICON DMG is currently the only noninvasive treatment for white spots. After a preliminary etching, it infiltrates the enamel, filling the spaces between the prisms with a resinous material that has a refraction coefficient very similar to that of healthy tooth enamel...
March 1, 2024: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://read.qxmd.com/read/38432352/effect-of-carbamide-peroxide-on-biomechanical-properties-of-vacuum-formed-retainers-a-split-mouth-randomized-controlled-trial
#11
JOURNAL ARTICLE
Carrol Jin, Andrew R Gray, Paul A Brunton, Mauro Farella, Li Mei
OBJECTIVE: To investigate the effect of tooth whitening on biomechanical properties of vacuum-formed retainers (VFRs). METHODS: Using a split-mouth, randomised controlled trial design, thirty participants were randomly allocated to receive whitening on either the upper or the lower arch, using 10% carbamide peroxide for two weeks. Biomechanical properties such as hardness, tensile strength, and surface roughness were assessed two weeks after whitening was completed...
March 1, 2024: Journal of Dentistry
https://read.qxmd.com/read/38430338/assessment-of-color-changes-and-adverse-effects-of-over-the-counter-bleaching-protocols-a-systematic-review-and-network-meta-analysis
#12
REVIEW
Murilo Navarro de Oliveira, Maria Tereza Campos Vidigal, Walbert Vieira, Caio Luiz Lins-Candeiro, Leandro Machado Oliveira, Gustavo G Nascimento, Gisele Rodrigues da Silva, Luiz Renato Paranhos
OBJECTIVES: To assess color change efficacy and the adverse effects of varied over-the-counter (OTC) bleaching protocols. METHODOLOGY: The study included randomized clinical trials evaluating color changes from OTC bleaching agents. Nine databases were searched, including the partial capture of the grey literature. The RoB2 tool analyzed the individual risk of bias in the studies. Frequentist network meta-analyses compared treatments through common comparators (∆Eab* and ∆SGU color changes, and tooth sensitivity), integrating direct and indirect estimates and using the mean and risk differences as effect measures with respective 95% confidence intervals...
March 2, 2024: Clinical Oral Investigations
https://read.qxmd.com/read/38384326/do-different-tooth-bleaching-remineralizing-regimens-affect-the-bleaching-effectiveness-and-enamel-microhardness-in-vitro
#13
JOURNAL ARTICLE
Hamideh Sadat Mohammadipour, Parnian Shokrollahi, Sima Gholami, Hosein Bagheri, Fatemeh Namdar, Salehe Sekandari
OBJECTIVE: Tooth bleaching may negatively affect the enamel surface properties, such as reduction in hardness values, and remineralizing agents can reverse these effects. This study evaluated the effect of remineralizing agents before, during, and after the bleaching process on enamel's whitening effectiveness and microhardness. METHODS AND MATERIALS: The initial color of 104 bovine incisors after immersion in tea solution was recorded, and then, the teeth were randomly divided into eight groups ( n  = 13)...
2024: International Journal of Dentistry
https://read.qxmd.com/read/38375377/a-randomized-clinical-trial-investigating-the-effect-of-three-vital-tooth-bleaching-protocols-on-oral-health-related-quality-of-life
#14
JOURNAL ARTICLE
Ahmad Jum'ah, Siddharth Kothari, Andrew R Gray, Jithendra Ratnayake, Felicity Leov, Karl Lyons, Paul A Brunton
OBJECTIVES: This study aimed to compare changes in oral health-related quality of life (OHRQoL) resulting from three vital tooth bleaching protocols. METHODS: The participants (n = 105) were randomly assigned to one of three vital bleaching treatment groups: home bleaching (HB), in-office bleaching (IOB), or combined bleaching (CB). HB involved the use of custom-made trays and 10% carbamide peroxide for a 14-day treatment period. IOB utilized 37.5% hydrogen peroxide applied in three cycles...
January 2024: Saudi Dental Journal
https://read.qxmd.com/read/38372602/-laboratory-evaluation-of-the-effectiveness-and-safety-of-the-chairside-light-whitening-system-fl%C3%A3-sh
#15
JOURNAL ARTICLE
I Ya Poyurovskaya, Yu A Vinnichenko, I A Kryazhinova, F S Rusanov, A V Korshunova
THE AIM OF THE STUDY: Optimization of methods for treating dental discoloration using whitening systems based on hydrogen peroxide by laboratory studying their chemical properties. MATERIAL AND METHODS: The effectiveness of the bleaching system was assessed by quantitatively assessing the color change of model samples of hydroxyapatite (HAP) in the CIE L*a*b* system on a Spectron-M color analyzer after exposure to coloring food media. Safety assessment was carried out on samples made from teeth removed according to indications...
2024: Stomatologii︠a︡
https://read.qxmd.com/read/38371984/comparison-of-in-office-and-at-home-bleaching-techniques-an-umbrella-review-of-efficacy-and-post-operative-sensitivity
#16
JOURNAL ARTICLE
Maria Aidos, Carlos Miguel Marto, Inês Amaro, Mariangela Cernera, Inês Francisco, Francisco Vale, Manuel Marques-Ferreira, Bárbara Oliveiros, Gianrico Spagnuolo, Eunice Carrilho, Ana Coelho, Anabela Baptista Paula
OBJECTIVES: The objective of this umbrella review is to evaluate the efficacy and adverse effects of different teeth whitening techniques in-office (IO) and at-home (AH), regarding chromatic changes and teeth sensitivity. MATERIALS AND METHODS: The search was carried out from several databases. The included studies were all systematic reviews with or without meta-analysis of RCT or quasi-RCT. The participants were patients that underwent external dental bleaching in permanent vital teeth...
February 15, 2024: Heliyon
https://read.qxmd.com/read/38367067/evaluation-of-tooth-color-change-after-a-bleaching-process-with-different-lasers
#17
JOURNAL ARTICLE
Danny Möbius, Andreas Braun, Rene Franzen
The aim of this in vitro study was to evaluate the efficiency of diode laser-activated bleaching systems for color change of teeth. 75 extracted teeth were studied in five different bleaching protocols. Group 1: diode laser 445 nm, 320 µm fiber, 0.5W, continuous wave mode, dose 53 J/cm2 . Group 2: diode laser 970 nm, 320 µm fiber, 1W, continuous wave mode, dose 106.10 J/cm2 . Group 3: diode laser 940 nm, bleaching handpiece, 7W, continuous wave mode, dose 105 J/cm2 ...
February 17, 2024: Odontology
https://read.qxmd.com/read/38353378/evaluating-color-change-and-hydrogen-peroxide-penetration-in-human-and-bovine-teeth-through-in-office-bleaching-procedures
#18
JOURNAL ARTICLE
Michael Willian Favoreto, Deisy Cristina Ferreira Cordeiro, Gabrielle Gomes Centenaro, Leonardo Dal Bosco, Luis Alfonso Arana-Gordillo, Alessandra Reis, Alessandro D Loguercio
OBJECTIVE: Assess color alteration and hydrogen peroxide (HP) penetration in human and bovine teeth using various in-office bleaching protocols with different application times. MATERIALS AND METHODS: Thirty healthy human premolars and 30 healthy bovine incisors were divided into five groups and subjected to different bleaching protocols: 2 × 15 min, 1 × 30 min, 2 × 20 min, or 1 × 40 min, with a control group for each tooth type...
February 14, 2024: Journal of Esthetic and Restorative Dentistry
https://read.qxmd.com/read/38345511/the-effect-of-photobiomodulation-therapy-associated-with-casein-phosphopeptide-amorphous-calcium-phosphate-fluoride-paste-on-the-treatment-of-posthome-whitening-tooth-sensitivity-and-color-change-a-randomized-clinical-trial
#19
REVIEW
Maria E de O P Cardoso, Elma V Takeuchi, Cristiane de M Alencar, Raissa A de Mesquita, Eliane B Alves, Cecy M Silva
OBJECTIVE: This study assessed whether combining photobiomodulation therapy (PBMT) with casein phosphopeptide-amorphous calcium phosphate fluoride (CPP-ACPF) paste can effectively reduce post-home whitening tooth sensitivity (TS) without compromising shade change. METHODS: Fifty participants were selected and assigned to one of four groups: (1) PLACEBO group-received a placebo paste and PBMT simulation; (2) PBMT group-received a placebo paste + PBMT; (3) CPP-ACPF group-received CPP-ACPF paste and PBMT simulation; (4) CPP-ACPF + PBMT group-received both CPP-ACPF paste and PBMT...
February 2024: Clinical and Experimental Dental Research
https://read.qxmd.com/read/38336149/influence-of-blue-and-violet-led-and-infrared-laser-on-the-temperature-of-bleaching-protocols-in-different-concentrations-of-hydrogen-peroxide
#20
JOURNAL ARTICLE
Elma Vieira Takeuchi, Joatan Lucas de Sousa Gomes Costa, Carmem Lúcia de Arroxelas Silva, Antonia Patricia Oliveira Barros, Barbara Leite Machado, Heitor Hussni Casarin, João Felipe Besegato, Milton Carlos Kuga, Cecy Martins Silva
BACKGROUND: The photo-acceleration of bleaching gels by lights has been extensively researched. However, the induced temperature increase during this process needs to be further evaluated prevent damage to dental pulp. Therefore, the objective of this study was to evaluate the surface and intrapulpal temperature kinetics of different concentrations of hydrogen peroxide (HP) gels photo-accelerated by blue or violet light and infrared laser. METHODS: The whitening gels at concentrations of HP35%, HP15%, and HP6% were irradiated with blue and violet LED/laser on the surface of a human canine tooth...
February 7, 2024: Photodiagnosis and Photodynamic Therapy
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