Abstract：
BACKGROUND:Although triple antibiotic paste (TAP) has been successfully used as an intracanal medicament for regenerative endodontic treatments, TAP has also been shown to cause discolouration. The aim of this study is to investigate the efficacy of different bleaching agents to bleach teeth discoloured from TAP. METHODS:Two hundred extracted human maxillary incisors were evaluated with VITA Easyshade, and 120 teeth were prepared and discoloured by using TAP for three weeks. After colouration, 70 teeth were randomly divided into five groups: Group 1: Negative control, Group 2: Sodium perborate, Group 3: Opalescence Endo, Group 4: Endoperox, and Group 5: Biolase. The colour changes in the third and seventh days' standard images were obtained using stereomicroscopy, RGB and Lab color space transformations were applied to the images. The CIE Lab color system was used, and total color changes (ΔE) were calculated and compared among groups and over time, using analysis of variance testing. RESULTS:At the third day, there was no difference between bleaching materials. At the seventh day, the Biolase group was superior to sodium perborate and there was no difference between other groups. A statistically significant difference was noted between the third and seventh-day measurements for all bleaching protocols. Bleaching effectiveness of all agents increased over time. CONCLUSIONS:Teeth discoloured by using TAP may be bleached by means of the investigated protocols, and colour alteration can be increased over time. The CIE Lab colour system can be used as an alternative, in vitro test for evaluating the bleaching efficiency of bleaching agents.
journal_name
Photodiagnosis Photodyn Therjournal_title
Photodiagnosis and photodynamic therapyauthors
Ozkocak I,Hekim M,Gokturk H,Adem K,Comert Odoi
10.1016/j.pdpdt.2020.101901subject
Has Abstractpub_date
2020-09-01 00:00:00pages
101901eissn
1572-1000issn
1873-1597pii
S1572-1000(20)30255-6journal_volume
31pub_type
杂志文章abstract：BACKGROUND AND OBJECTIVE:Photodynamic therapy (PDT) can eliminate microorganisms in a root canal. However, the parameters for disinfection remain undefined. This study assessed the effectiveness of a PDT protocol against intracanal Enterococcus faecalis biofilms. MATERIALS AND METHODS:Root canals were contaminated wit...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2016.01.002
更新日期：2016-03-01 00:00:00
abstract：:Antimicrobial photodynamic therapy uses a nontoxic photosensitizer with the assistance of harmless visible light to activate the photosensitizer. Consequently, the excited state of the photosensitizer interacts with molecular oxygen to produce reactive oxygen species, which have the antimicrobial effect. In this study...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.09.018
更新日期：2018-12-01 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：BACKGROUND:Photodynamic therapy (PDT) is a well-known and effective treatment for non-melanoma skin-cancer. Numerous studies have also shown its effectiveness in mycosis fungoides. The aim of the study was to analyse MF patients treated with PDT at the Dermatology Unit of Bologna University. METHODS:We retrospectively...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.09.004
更新日期：2017-12-01 00:00:00
abstract：OBJECTIVE:The aim of this pilot study was to compare the efficacy of ALA-PDT and red light alone in the treatment of photoaging. METHODS:A total of 14 adults with photoaging skin were recruited. ALA-PDT or red light alone was applied to the forearm extensor. Before and after treatment, the treated sites were examined ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2014.02.007
更新日期：2014-06-01 00:00:00
abstract：PURPOSE:Early diagnosis of tooth enamel demineralization, and dentin caries lesions, present a valuable solution to avoid or decrease their deleterious effect. The aim of this study was to design a simple, effective, and non-invasive technique, employing a novel laser wavelength to classify and differentiate between va...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.11.017
更新日期：2019-03-01 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：:One of the factors limiting photodynamic therapy (PDT) is hypoxia in tumor cells during photodynamic action. PDT with pulse mode irradiation and appropriate irradiation parameters could be more effective in the singlet oxygen generation and tissue re-oxygenation than continuous wave (CW) mode. We theoretically demonst...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2016.01.003
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND:The aim of this study was to analyze bleaching treatment performed with different products, with or without the use of Violet LED. METHODS:The color and dental sensitivity of six patients were evaluated as follows: (1)at-home bleaching with 10% Carbamide Peroxide (CP); (2)in-office bleaching with 17.5% Hydr...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.05.016
更新日期：2019-09-01 00:00:00
abstract：:Today, the widespread use of laser instruments in various fields has resulted in many accidental retinal injuries. Here we describe a rare clinical case of full-thickness macular hole (MH) and focal choroidal excavation (FCE) caused by a 1064-nm Q-switched Nd:YAG laser. After pars plana vitrectomy and the following 14...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2017.07.001
更新日期：2017-09-01 00:00:00
abstract：AIM:The aim of this in-vitro study is to investigate the shear bond strength (SBS) of Bioactive bulk fill restorative material (BARM) (Activa) by surface pre-treatment using Er,Cr:YSGG (ECL) on dentin in comparison to conventional dentin conditioning techniques. MATERIAL AND METHODS:Sixty extracted non-carious, non-fr...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.08.014
更新日期：2019-12-01 00:00:00
abstract：:Hidradenitis Suppurativa (HS) is a distressing painful chronic inflammatory skin follicular condition. It is a challenge to achieve better therapeutic effect and lower recurrence rate. In this report, ALA-PDT combined with surgery for the treatment achieved ulcer healing, pain elimination, with no relapse during our f...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.07.024
更新日期：2019-12-01 00:00:00
abstract：:Photodynamic therapy is one of the hot topics in cancer studies. Photosensitizing chemical substrates are stimulated by light having a specific wavelength to cause fatal effect on different kinds of targets. In this study, axially 4-{[(1E)-2-furylmethylene]amino}phenol, 4-{[(1E)-2-thienylmethylene]amino}phenol and 4-{...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.05.009
更新日期：2018-09-01 00:00:00
abstract：BACKGROUND:Photodynamic therapy (PDT) and diagnosis (PDD) using 5-aminolevulinic acid (ALA) to control the production of the intracellular photosensitizer protoporphyrin IX (PpIX) are commonly used clinically. Previously, we demonstrated that dormant and drug-induced dormancy-like cancer cells accumulated high PpIX lev...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101893
更新日期：2020-09-01 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：:We report the case of a patient with recurrence of follicular carcinoma of the thyroid 8 years after surgical resection followed by external beam radiotherapy and radio-iodine treatment. The patient was treated by endoscopic photodynamic therapy (PDT) with complete endoscopic response after 12 months with good symptom...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/S1572-1000(04)00016-X
更新日期：2004-05-01 00:00:00
abstract：:Perifolliculitis capitis abscedens et suffodiens (PCAS), also known as dissecting cellulitis of the scalp (DCS), is a rare, chronic, suppurative inflammatory disease of the scalp which may evolve into cicatricial alopecia. Its refractory nature has a detrimental impact on patients' quality of life. Here, we report fiv...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101660
更新日期：2020-06-01 00:00:00
abstract：:Extramedullary plasmacytomas (EMP) are rare plasma cell neoplasms that are mostly located in the mucosal surfaces of the upper aerodigestive tract. The standard treatment is radiotherapy (RT), with surgical resection reserved as salvage procedure. In this report a patient with a EMP, located in the nasopharynx and ref...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2011.03.340
更新日期：2011-09-01 00:00:00
abstract：:Staphylococcus aureus is responsible for skin and soft tissue infections. Having in mind increased antibiotic resistance, in this study the efficacy of antimicrobial photodynamic therapy (aPDT) with a porphyrinic formulation (FORM) as photosensitizer (PS) to photoinactivate methicillin-resistant Staphylococcus aureus ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101754
更新日期：2020-06-01 00:00:00
abstract：BACKGROUND:Optical fibres can be placed in balloons to deliver light for intracranial photodynamic therapies. METHOD:A series of fibres, with either cleaved ends or terminating in cylindrical diffusers, housed in two different balloons, containing various solutions were investigated. The aim of the experiments perform...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2007.06.003
更新日期：2007-09-01 00:00:00
abstract：BACKGROUND:an accurate measurement of anterior chamber depth (ACD) both in eyes that underwent corneal refractive surgery (CRS) and in eyes that did not, can be crucial, as in case of intraocular lens (IOL) calculation in eyes that need to undergo cataract extraction, or during the evaluation of glaucomatous patients. ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2020.101976
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 objective of this study was to evaluate and compare the clinical response to PDT (Photodynamic Therapy) in field cancerization using two aminolevulinate derivatives. Forty patients with multiple actinic keratosis (AK) on forearms and hands scattered received two sessions of ALA and MAL-PDT at 630 nm (36 J/cm2). Th...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.101603
更新日期：2020-06-01 00:00:00
abstract：BACKGROUND:Recently, photodynamic diagnosis using 5-aminolevulinic acid (5-ALA) has gained attention for the diagnosis of neoplastic diseases. In the present study, anin vitro method of photodynamic cytodiagnosis (PDCD) performed using the reagent 5-ALA in the cytodiagnosis of solid pancreatic tumors was developed. Her...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.101581
更新日期：2019-10-16 00:00:00
abstract：BACKGROUND:Active recruitment of inflammatory cells into tumors may be vital for antitumor immunity in cutaneous squamous cell carcinoma (cSCC) after photodynamic therapy. Chemokines play important roles in inflammatory cell recruitment. Moreover, C-X-C motif chemokine ligand 13 (CXCL13) is thought to be a pivotal chem...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2019.04.018
更新日期：2019-06-01 00:00:00
abstract：OBJECTIVES:The purpose of this study was to determine the usefulness of a quantitative light-induced fluorescence (QLF) technology in detecting dental restorations by comparing the detection ability of dental hygiene students between using conventional visual inspection alone and visual inspection combined with QLF tec...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.pdpdt.2016.12.010
更新日期：2017-03-01 00:00:00
abstract：BACKGROUND:Autofluorescence bronchoscopy (AFB) is a highly sensitive tool for the detection of early bronchial cancers. However, its specificity remains limited due to primarily false positive results induced by hyperplasia, metaplasia and inflammation. We have investigated the potential of blue-violet backscattered li...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2008.01.005
更新日期：2008-03-01 00:00:00
abstract：:Photodynamic therapy (PDT) was started in the People's Republic of China in the early 1980s after domestically produced hematoporphyrin derivative (HpD) became available. Since then, numerous photosensitizers have been synthesized and evaluated. Several promising ones have undergone clinical investigations and a few h...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/S1572-1000(06)00009-3
更新日期：2006-03-01 00:00:00
abstract：:Photodynamic therapy (PDT) is a promising modality for the treatment of cancer. PDT involves administering a photosensitizing dye, i.e. photosensitizer, that selectively accumulates in tumors, and shining a light source on the lesion with a wavelength matching the absorption spectrum of the photosensitizer, that exert...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章,评审
doi：10.1016/j.pdpdt.2019.04.033
更新日期：2019-06-01 00:00:00
abstract：INTRODUCTION:The aim of this study is to evaluate the antimicrobial activity of hypochlorite solutions and reciprocating instrumentation associated with photodynamic therapy (PDT). METHODS:One hundred and thirty two root canals were enlarged up to #35 K-file and inoculated with E.faecalis for 14 days. The 132 samples ...
journal_title：Photodiagnosis and photodynamic therapy
pub_type： 杂志文章
doi：10.1016/j.pdpdt.2018.07.015
更新日期：2018-09-01 00:00:00
