Abstract：
INTRODUCTION:Difficult handling, long setting time, and potential discoloration are important drawbacks of white mineral trioxide aggregate (WMTA). The development of Biodentine, a recently developed calcium silicate-based material (CSM), has overcome some of these shortcomings; however, there are no available data on its color stability. A previous study showed that WMTA discolors under light irradiation in an oxygen-free environment. The present study evaluated the influence of light irradiation and oxygen on the color stability of 5 CSMs. METHODS:Fifteen samples of 5 CSMs (ProRoot WMTA, Angelus WMTA, White Portland Cement [PC], PC with bismuth oxide, and Biodentine) were divided into 5 groups. Each group was exposed to different oxygen and light conditions. A spectrophotometer was used to determine the color of each specimen at 0, 120 seconds, and 5 days. Data were analyzed by using analysis of variance and Tukey honestly significant difference test. RESULTS:The materials PC with bismuth oxide, Angelus WMTA, and ProRoot WMTA showed dark discoloration after light irradiation in an oxygen-free environment, which was statistically significantly different from Biodentine and PC. In groups that were exposed to no light irradiation or to an oxygen atmosphere, all materials showed color stability over time, and no significant differences were observed among them. PC and Biodentine maintained color stability in all conditions over time and showed no significant differences. CONCLUSIONS:The combination of light and anaerobic conditions (similar to those in clinical situations) results in differences in color of the tested CSMs during a period of 5 days, of which Biodentine and PC demonstrated color stability.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Vallés M,Mercadé M,Duran-Sindreu F,Bourdelande JL,Roig Mdoi
10.1016/j.joen.2012.12.021subject
Has Abstractpub_date
2013-04-01 00:00:00pages
525-8issue
4eissn
0099-2399issn
1878-3554pii
S0099-2399(13)00009-5journal_volume
39pub_type
杂志文章abstract：:The aim of this study was to investigate the prevalence and configuration of the C-shaped canal using serial axial computed tomography images of the mandibular second molars that had not been restored severely or treated endodontically, and to compare the thickness of the remaining tooth structure from the center of t...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.10.007
更新日期：2006-01-01 00:00:00
abstract：:This study was aimed at comparing the cultivable microorganisms in canals with periapical radiolucencies with exposed and unexposed pulp space. Microbiological samples were taken and analyzed from 45 canals with exposed pulp space, and 43 canals with unexposed pulp space. The canal contents were analyzed by aerobic/an...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000148149.27636.9c
更新日期：2005-06-01 00:00:00
abstract：:We immunohistologically examined the prevalence and localization of bacteria invading dentinal tubules of the roots of teeth with infected canals. Forty extracted teeth with apical lesions were selected and divided into two groups: a group of untreated teeth and a group of canal-enlarged teeth. The bacteria in the spe...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200303000-00008
更新日期：2003-03-01 00:00:00
abstract：INTRODUCTION:We aimed to compare the antimicrobial efficacy of chlorhexidine (CHX) and sodium hypochlorite (NaOCl), 2 irrigants routinely used in root canal therapy of permanent teeth. METHODS:Electronic databases, including PubMed, EMBASE, Web of Science, and Cochrane Library, were searched for randomized controlled ...
journal_title：Journal of endodontics
pub_type： 杂志文章,meta分析
doi：10.1016/j.joen.2020.05.002
更新日期：2020-08-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to investigate the release of growth factors into root canal space after the irrigation procedure of regenerative endodontic procedure. METHODS:Sixty standardized root segments were prepared from extracted single-root teeth. Nail varnish was applied to all surfaces except the roo...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.04.029
更新日期：2016-12-01 00:00:00
abstract：:The aims of this study were to compare Resilon (Resilon Research LLC, Madison, CT) in conjunction with either a bonding (Epiphany; Pentron Clinical Technologies, Wallingford, CT) or a nonbonding endodontic sealer (Pulp Canal Sealer; Kerr Corporation, Orange, CA) to EndoRez (Ultradent Products Inc, South Jordan, UT) an...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2007.02.018
更新日期：2007-07-01 00:00:00
abstract：:The mesiobuccal roots of 50 randomly selected maxillary first molars were examined to assess the incidence and position of the canal isthmus. Transverse serial sections of the apical 6 mm of each root were prepared in 1-mm increments. The apical side of each section was stained with methylene blue dye, viewed with a s...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(06)80975-1
更新日期：1995-07-01 00:00:00
abstract：INTRODUCTION:Calcium silicate-based materials (CSMs) are used in various endodontic procedures. The present study examined whether prolonged contact of mineralized dentin with recently commercialized versions of these materials adversely affects dentin collagen matrix integrity. METHODS:Dentin slabs prepared from extr...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.01.004
更新日期：2012-06-01 00:00:00
abstract：INTRODUCTION:Collagen dentin matrix may represent a suitable scaffold to be remineralized in the presence of bioactive materials. The purpose of this study was to determine if experimental resin cements containing bioactive fillers may modulate matrix metalloproteinase-mediated collagen degradation of etched dentin. M...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.05.011
更新日期：2012-09-01 00:00:00
abstract：:It has been shown that rotary nickel-titanium files cannot be used indefinitely. Researchers and clinicians have not been able to agree on how many times a file can be used before being discarded, except if a file has fractured or become visibly distorted. This study used ISO size 20 files of 0.04 taper in the curved ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200202000-00014
更新日期：2002-02-01 00:00:00
abstract：INTRODUCTION:Apical root resection is a biologically essential component in endodontic microsurgery. However, because it reduces the total root length and supported root surface, it changes the biomechanical response of the tooth. The purpose of this study was to analyze the biomechanical effect of apical root resectio...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.03.006
更新日期：2014-09-01 00:00:00
abstract：:A unique case of a mandibular molar with 5 canals is described. Literature pertaining to the analysis of the morphology of mandibular first molars is reviewed. Clinicians should thoroughly examine the pulpal floor and radiographs for the possibility of additional canals. ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(97)80211-7
更新日期：1997-01-01 00:00:00
abstract：:With the recent influx of osseointegrated endosseous implants in dentistry, attention has been drawn away from using endodontic stabilizers as a means of stabilizing and retaining teeth. It is our opinion that endodontic stabilizers should be considered in the treatment planning of seemingly nonretainable teeth. They ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81268-9
更新日期：1992-05-01 00:00:00
abstract：:Prostaglandins (PG) have been implicated in the genesis of periapical lesions. Periapical specimens from patients with clinical signs and symptoms of chronic and acute apical periodontitis were obtained and immediately frozen in liquid nitrogen. Periradicular tissues from unerupted third molars were frozen and used as...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81737-1
更新日期：1991-03-01 00:00:00
abstract：:Endodontic fillings were challenged with bacterial ingress in mandibular premolars of 4 beagle dogs. Groups 1, 2, and 3 (n = 9), had canals filled with gutta-percha and sealer, gutta-percha alone, and sealer alone, respectively. After 2 wk, pulp chambers were inoculated with plaque. Group 4 (n = 9) and group 5 (n = 5)...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81120-9
更新日期：1997-09-01 00:00:00
abstract：INTRODUCTION:Calcium hydroxide has been used as a traditional pulpotomy agent for a long time but has some disadvantages. iRoot BP Plus (Innovative Bioceramix Inc, Vancouver, Canada) is a newly developed, ready-to-use calcium silicate-based bioactive ceramic with excellent bioactivity and sealing ability. However, whet...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.12.010
更新日期：2020-03-01 00:00:00
abstract：:The purpose of this in vitro study was to evaluate the accuracy of Root ZX apex locator to determine the working length in teeth with simulated apical root resorption. Fifty extracted, single-rooted, human teeth with mature apices were used in this study. An irregular cavity defect was drilled at the apex of each toot...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200206000-00011
更新日期：2002-06-01 00:00:00
abstract：INTRODUCTION:Interferon regulatory factor 8 (IRF8) is a critical transcription factor in innate immune responses that regulates the development and function of myeloid cells. Human periapical lesions are caused by endodontic microbial infections. However, the presence of IRF8 in human periapical lesions remains elusive...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.04.015
更新日期：2018-08-01 00:00:00
abstract：:Intermediate Restorative Material (IRM) has been advocated as a root-end filling material based primarily on reports of clinical success and various leakage studies. The objectives of this study were to determine the excisional wound healing responses of the periradicular tissues to IRM root-end filling material and t...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(97)80201-4
更新日期：1997-01-01 00:00:00
abstract：INTRODUCTION:Concentrated growth factor (CGF) is considered to be a natural biomaterial that is better than platelet-rich fibrin (PRF) in bone regeneration, but there is little information acquired in regenerative endodontics. Therefore, the purpose of this study was to evaluate their effects on the proliferation, migr...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.03.006
更新日期：2018-06-01 00:00:00
abstract：INTRODUCTION:This study quantitatively evaluated the type and amount of image artifacts generated by different intracanal materials in birooted teeth scanned at different exposure parameters. METHODS:The sample consisted of 15 birooted premolars. Seven different intracanal material combinations were used in each tooth...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.11.007
更新日期：2019-02-01 00:00:00
abstract：:This study is a quantitative assessment of the luminous energy transmitted through different translucent fiber posts. After embedding the posts in black resin, the blocks were submitted to sequential cuts in a precision machine, and depths of 16 mm, 12 mm, 8 mm, and 4 mm were assessed for light transmission with a dig...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2007.12.007
更新日期：2008-03-01 00:00:00
abstract：INTRODUCTION:Clinicians commonly mix mineral trioxide aggregate (MTA) to a desired consistency rather than use the recommended amounts of powder and water. The purpose of this in vitro study was to evaluate how varying the water-to-powder (WP) ratio affects the setting expansion of white MTA (WMTA) and gray MTA (GMTA)....
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2010.03.010
更新日期：2010-08-01 00:00:00
abstract：INTRODUCTION:Hydrogen peroxide tooth bleaching is claimed to cause alterations in dental tissue structures. This study investigated the influence of the number of bleaching sessions on pulp tissue in rats. METHODS:Male Wistar rats were studied in 5 groups (groups 1S-5S) of 10 each, which differed by the number (1-5) o...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.08.007
更新日期：2013-12-01 00:00:00
abstract：INTRODUCTION:This article reports on the feasibility of conducting a large-scale endodontic prospective cohort study in The National Dental Practice-Based Research Network. This study was designed to measure pain and burden associated with initial orthograde root canal therapy (RCT) and to explore potential prognostic ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.08.002
更新日期：2012-11-01 00:00:00
abstract：:Mineral trioxide aggregate (MTA) is being advocated for vital pulp therapy. In the case of direct pulp capping, hemorrhage control is an important step on success, but little is known about the effect of MTA on pulpal bleeding. In addition, there has been a lack of information on the effect of MTA on smooth muscle con...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2007.03.007
更新日期：2007-07-01 00:00:00
abstract：:The purpose of this study was to evaluate the number of canals and isthmuses obturated after Cr, Er: YSGG laser treatment. Fifty-two canals were instrumented to a size 40 Profile 0.06 file combined with RC-Prep and sodium hypochlorite, or sterile water. The teeth were divided into 3 groups: (I) canals were flooded wit...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2007.05.012
更新日期：2007-09-01 00:00:00
abstract：:The purpose of this study was to compare the degree of anesthesia obtained with 2% lidocaine with three different concentrations of epinephrine for inferior alveolar nerve block. Using a repeated measures design, 30 subjects randomly received an inferior alveolar injection using masked cartridges of each solution at t...
journal_title：Journal of endodontics
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/S0099-2399(97)80271-3
更新日期：1997-03-01 00:00:00
abstract：:The purpose of this study was to compare three engine driven (nickel-titanium) NiTi instrument systems with hand files for their effect on canal transportation. Mesial roots of mature lower first molars with separate canals were paired on the basis of curvature and morphology. Canal lengths were standardized to 11 mm ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(97)80310-X
更新日期：1997-08-01 00:00:00
abstract：INTRODUCTION:In this study, we investigated if apical periodontitis (AP) associated with diabetes influenced the levels of endogenous antioxidants, the total antioxidant capacity (TAC), and the oxidant parameter in the serum of Wistar rats. METHODS:Forty male rats were divided into 4 equal groups: normal rats (N), rat...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.05.014
更新日期：2017-10-01 00:00:00
