Abstract：
OBJECTIVES:To evaluate the bleaching efficacy of a violet radiation (VR) combined or not with bleaching gels on the color and mineral content of stained teeth. MATERIAL AND METHODS:Enamel/dentin blocks were obtained and stained (n = 50) with coffee, red wine, tobacco smoke, or were left non-stained. The stained or not-stained blocks (n = 10) were distributed into five bleaching groups (n = 10): VR, CP (37% carbamide peroxide), VR/CP, HP (35% hydrogen peroxide), and VR/HP. Color (ΔE00, ΔL, Δa, and Δb) and whiteness index (ΔWID) changes were evaluated after staining and after bleaching using a spectrophotometer. Calcium (Ca), phosphorous (P), and Ca/P contents (in wt%) were measured after bleaching using energy-dispersive X-ray spectroscopy (EDS). Data was statistically analyzed (α = 0.05) using two-way ANOVA and Tukey tests (ΔE00, ΔWID, ΔL, Δb, wt%) or Kruskal-Wallis and Dunn tests (Δa). RESULTS:VR alone caused higher colorimetric changes on coffee, tobacco and red wine-stained groups compared to non-stained enamel (p < 0.05). VR/CP exhibited higher colorimetric changes compared to CP in coffee and non-stained groups. The VR/CP, HP and VR/HP groups exhibited no change differences (p > 0.05). No differences were observed for the wt% of Ca, P and Ca/P between the groups. CONCLUSIONS:The violet radiation was more effective in bleaching stained rather than non-stained teeth. VR combined with 37% carbamide peroxide was as effective as the HP agent. Besides, no adverse effects could be observed in the enamel mineral content, regardless of the bleaching protocol tested, according to the EDS semi-quantitative analysis.
journal_name
Photodiagnosis Photodyn Therjournal_title
Photodiagnosis and photodynamic therapyauthors
Kobayashi RS,Picolo MZD,Kury M,de Almeida Resende B,Florez FLE,Cavalli Vdoi
10.1016/j.pdpdt.2021.102194subject
Has Abstractpub_date
2021-01-26 00:00:00pages
102194eissn
1572-1000issn
1873-1597pii
S1572-1000(21)00020-Xpub_type
杂志文章abstract：BACKGROUND:Optical coherence tomography (OCT) is a useful tool for the evaluation of structure and function of the kidney, but the image quality can be effected by many factors. OBJECTIVE:The objective of this study was to assess the image quality of different OCT systems in OCT imaging of the living kidney. METHODS:...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101983
更新日期：2020-12-01 00:00:00
abstract：BACKGROUND:The potential application of TOOKAD(®)-PDT for the treatment of blood vessels was investigated. TOOKAD(®) (WST09), a novel palladium-bacteriopheophorbide absorbs light in the near IR with a high quantum yield of intersystem crossing. Our study assessed the efficacy of this drug in inducing vascular damage wi...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/S1572-1000(05)00006-2
更新日期：2005-03-01 00:00:00
abstract：BACKGROUND:Erosive oral lichen planus (EOLP) poses a substantial risk of malignant transformation into squamous cell cancer. The absence of established treatment gives way to alternative therapeutic strategies, including photodynamic therapy. The aim of the study was to evaluate the efficacy of PDT in the treatment of ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.01.178
更新日期：2017-06-01 00:00:00
abstract：AIM:To assess the efficacy of phototherapy on bond strength and microleakage of bulk fill composites in comparison to conventional dentin surface treatments. MATERIALS AND METHODS:Ninety human third molars were divided into 3 groups (n = 30 each) according to surface conditioning treatment. Group 1 (Etch and Bond) EB,...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.12.014
更新日期：2019-03-01 00:00:00
abstract：:We have more than 10 years experience in the Photobiology Unit, in the use of topical photodynamic therapy (PDT) for non-melanoma skin cancer and other skin diseases. During this time we have undertaken approximately 5000 treatments and this article details the practical aspects of how we treat Bowen's disease with to...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2009.04.001
更新日期：2009-03-01 00:00:00
abstract：BACKGROUND:Photodynamic therapy is a promising invention to treat infections and cancer where conventional treatments are insufficient and have many side effects. Photodynamic therapy is mainly emphasized as having minimal side effects on healthy cells during local applications, even so photosensitizer can accumulate i...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101891
更新日期：2020-09-01 00:00:00
abstract：BACKGROUND:Photodynamic therapy (PDT) using 5-aminolevulinic acid is considered to be ineffective in the treatment of tumors with progression to the deep layer. Therefore, for such tumors, a method is required which can enhance the effectiveness of this therapy. We examined the anti tumor effect of the combination of P...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2012.04.003
更新日期：2012-12-01 00:00:00
abstract：BACKGROUND:Reduction of myocardial ischemia-reperfusion injury in the patients undergoing cardiac surgery under cardiopulmonary bypass represents an important goal. Intraoperative monitoring of myocardial metabolic state using continuous registration of nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucl...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2014.05.003
更新日期：2014-09-01 00:00:00
abstract：BACKGROUND:The development of nanocarriers is an important approach to increase the bioavailability of hydrophilic drugs in target cells. In this work, we evaluated the anti-tumorigenic mechanisms and efficacy of NanoALA, a novel nanoformulation of aminolevulic acid (ALA) based on poly(lactide-co-glycolide) (PLGA) nano...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.08.011
更新日期：2017-12-01 00:00:00
abstract：BACKGROUND:Microorganisms treated by photo-activated disinfection (PAD) in combined periodontal-endodontic (perio-endo) lesions would be exposed to sub-lethal doses of PAD (sPAD). This study evaluated the effect of sPAD using toluidine blue O (TBO) in combination with diode laser irradiation on the growth and biofilm-f...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2016.08.013
更新日期：2016-12-01 00:00:00
abstract：:Onychomycosis is a fungal nail disease and is one of the major onychopathy worldwide. Topical or oral antifungal therapies are used to treat this disease, but often they are inefficient and oral medications can even cause several side effects. Photodynamic therapy (PDT) is a well established technique and hence, may r...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2013.01.001
更新日期：2013-09-01 00:00:00
abstract：:Decreasing incubation time, as well as enhanced PpIX production, are present challenges for topical photodynamic therapy (PDT). There are reports concerning the existence of a strong relationship between site temperature and porphyrin synthesis in biological tissue, that suggest temperature increase in the tissue can ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101786
更新日期：2020-06-01 00:00:00
abstract：:Hepatitis is one of the most common life threatening diseases. The diagnosis is mainly based on biochemical analysis such as liver function test. However, histopathological evaluation of liver serves far better for more accurate final diagnosis. The goal of our study was to evaluate the eosin fluorescence pattern in C...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.03.016
更新日期：2017-09-01 00:00:00
abstract：AIMS:To evaluate the clinical periodontal, serum glycated haemoglobin (HbA1c) and levels of advanced glycation end-products (AGEs) in the gingival crevicular fluid (GCF) among patients with periodontitis and type 2 diabetes mellitus (DM) after photodynamic therapy (PDT) as an adjunct to full-mouth disinfection (FMD). ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.pdpdt.2019.08.003
更新日期：2019-12-01 00:00:00
abstract：BACKGROUND:This study investigated the relationship between manual dexterity and dental biofilm accumulation in independent older Koreans using Quantitative Light-Induced Fluorescence-Digital (QLF-D). METHODS:This cross-sectional study included 44 participants recruited from senior welfare facilities in South Korea an...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章,多中心研究
doi：10.1016/j.pdpdt.2018.11.007
更新日期：2019-03-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Breast cancer is one of the most widely recognized tumors. .Diagnosis made in the early stage of disease may imporve outcomes. The discovery of malignant growth utilizing noninvasive light intrusive methods in lieu of conventional excisional biopsy may assist in achieving this goal. MATERIALS AN...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101922
更新日期：2020-09-01 00:00:00
abstract：BACKGROUND:Nanosecond pulsed electric field (nsPEF) treatment is a new anti-cancer strategy with ultrashort pulse duration and high intensity of electric fields. The application of nsPEFs affects all intra- and extracellular membranes and independently initiates the process of apoptosis within cancer cells, leading the...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2015.11.002
更新日期：2015-12-01 00:00:00
abstract：:Follicular mucinosis (FM) is a rare inflammatory disorder histologically characterized by mucin deposition in the follicular epithelium. There is no standard therapy for FM and several treatments have been described in the literature. We present the case of a 59 year-old female affected by a recalcitrant FM with diffu...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.07.003
更新日期：2019-09-01 00:00:00
abstract：BACKGROUND:Daylight photodynamic therapy (dPDT) is an effective treatment for field-change actinic keratoses (AK), with similar efficacy to conventional PDT but lower patient pain scores. Whilst AK occur consequent to chronic solar ultraviolet (UV) exposure, paradoxically solar visible radiation is used during PDT. OB...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.05.020
更新日期：2019-09-01 00:00:00
abstract：:Hidradenitis suppurativa (HS) is a chronic, inflammatory, and recurrent skin disease. Surgical excision of wounds appears to be the only curative treatment for the prevention of recurrence of moderate to severe stages. Magnetic resonance imaging (MRI) is a standard reference examination for the detection of HS peri-an...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.05.007
更新日期：2018-09-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Pancreatic cancer is a leading cause of cancer-related deaths in men and women. Early clinical studies suggest that photodynamic therapy (PDT) might be a useful modality in the management of this deadly disease. In this study, the photocytotoxicity of Photofrin-mediated PDT on different human p...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2012.11.001
更新日期：2013-09-01 00:00:00
abstract：:This study reports successful photodynamic inactivation of planktonic and biofilm cells of Enterococcus faecalis using Methylene Blue (MB) in combination with gold nanoparticles synthesized using the cell-free filtrate obtained from 3-day biomass of Trichoderma asperellum strain. Monodispersed colloidal gold nanoparti...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.05.042
更新日期：2019-09-01 00:00:00
abstract：:Folic acid functionalized carbon quantum dots (FA-CQDs) with ultrahigh quantum yield (50 %) were synthesized by one-pot hydrothermal route using citric acid. The synthesized CQDs were characterized by fluorescence spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS) and X-ray diffractio...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101687
更新日期：2020-06-01 00:00:00
abstract：BACKGROUND:The focal goal of this study is to identify optimal accumulation periods for ALA-induced PpIX in different healthy anatomical sites of human oral cavity and different types of abnormal mucosa to improve the accuracy of the clinical applications such as photodiagnosis and tissue grading. MATERIALS AND METHOD...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2010.06.006
更新日期：2010-09-01 00:00:00
abstract：BACKGROUND:Antibacterial photodynamic therapy (aPDT) has been proposed as an alternative strategy to inactivate bacteria. This study was designed to investigate the antibacterial effect of a novel photosensitizer S-Porphin sodium (S-PS) on plankton and biofilm cultures of Staphylococcus aureus (S. aureus) and its multi...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.08.031
更新日期：2019-12-01 00:00:00
abstract：AIM:The current clinical trial aimed to assess the effectiveness of adjunctive photodynamic therapy (aPDT) and adjunctive antibiotic gel therapy (aAGT) to treat peri-implantitis among patients with type 2 diabetes mellitus (T2DM). METHODS:Selected T2DM participants with peri-implantitis were distributed into 3 groups:...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.102077
更新日期：2020-12-01 00:00:00
abstract：BACKGROUND:Quantitative Light-induced Fluorescence-Digital (QLF-D) detects red fluorescence of plaque, but is almost solely used on labial anterior tooth surfaces. As distribution and formation of plaque varies distinctly within the dentition, our aim was to investigate, how red fluorescing plaque is related to disclos...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.102063
更新日期：2020-12-01 00:00:00
abstract：AIM:The aim of this study was to evaluate the effectiveness of final decontamination protocols against Enterococcus faecalis and their influence on bond strength of filling material to root canal dentin. MATERIAL AND METHODS:Ninety root canals were enlarged with ProTaper system and inoculated with E. faecalis for 15da...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2016.11.004
更新日期：2017-03-01 00:00:00
abstract：:The relationship between cytomegalovirus (CMV), a severe complication in immunocompromised patients, and graft-versus-host disease (GVHD) has already been reported but remains without complete elucidation, especially concerning oral lesions. Considering that antimicrobial photodynamic therapy (aPDT) has an antimicrobi...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101849
更新日期：2020-12-01 00:00:00
abstract：:Four tetracationic porphyrins have been investigated for their ability to photo-inactivate Leishmania major promastigotes. Parallel photocytotoxicity assays against keratinocytes and macrophages show significant differences in activity between the microorganism and mammalian cells. Results suggest that it may be possi...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2006.04.004
更新日期：2006-09-01 00:00:00
