Abstract：
:The effects of parathyroid hormone (PTH), 1,25-dihydroxyvitamin D3, and prostaglandin E2 (PGE2) on alkaline phosphatase activity on cultured dental pulp and gingiva cells of bovine calf were compared. In pulp cells, PTH, 1,25-dihydroxyvitamin D3, and PGE2 significantly increased alkaline phosphatase activity, but no increase in the enzyme activity by these factors was observed in gingiva cells. Dibutyryl cAMP also increased alkaline phosphatase activity in both types of cell, but the increase in pulp cells was greater than that in gingiva cells. Treatment of the cultured pulp cells with PTH or PGE2 significantly increased the intracellular cAMP content. These results suggest that calciotropic factors such as PTH, 1,25-dihydroxyvitamin D3, and PGE2 may be involved in the differentiation of dental pulp cells and that some of these effects (those of PTH and PGE2) are mediated by cAMP.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Kido J,Ishida H,Nagata T,Hamasaki A,Nishikawa S,Wakano Ydoi
10.1016/s0099-2399(06)82009-1keywords:
subject
Has Abstractpub_date
1991-04-01 00:00:00pages
161-4issue
4eissn
0099-2399issn
1878-3554pii
S0099-2399(06)82009-1journal_volume
17pub_type
杂志文章abstract：INTRODUCTION:Issues pertaining to the effective elimination of bacterial biofilm and disruption of biofilm structure still remains in endodontic disinfection. Nanoparticulates such as chitosan (CS-np) and zinc oxide (ZnO-np) are known to possess significant antibacterial properties. This study aimed to test (1) the eff...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.02.008
更新日期：2010-06-01 00:00:00
abstract：:Endodontic therapy has played an important role in maintaining the integrity of the natural dentition as a fully functional and esthetic masticatory apparatus. Although the sealing of the root canal system is usually accomplished by the conservative endodontic approach, cases which have failed or which involve perfora...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81793-0
更新日期：1991-10-01 00:00:00
abstract：:The effects of various cleaning, chemical disinfection, and sterilization procedures on the cutting efficiency of endodontic instruments Unifile (De Trey, Bois Colombes, France), (Flexofile Maillefer, Ballaigues, Switzerland), and H-File (Maillefer)) were investigated. The cross-infection control treatment procedures ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(96)80059-8
更新日期：1996-12-01 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：INTRODUCTION:Squamous odontogenic tumor-like epithelial islands occurring in the walls of odontogenic cysts are histologically identical to the squamous odontogenic tumor (SOT). Microscopically, the squamous odontogenic tumor-like proliferations (SOTLPs) share certain histologic features with SOT, acanthomatous and des...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.02.010
更新日期：2011-05-01 00:00:00
abstract：:A palatogingival groove is an anatomic malformation that predisposes the involved tooth to a severe periodontal defect. When the condition is complicated by pulpal necrosis, affected teeth often present a dilemma in terms of diagnosis and treatment planning. In this report, we describe the case of a patient with a max...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.10.009
更新日期：2016-02-01 00:00:00
abstract：:The objective of this study was to assess and compare canal blockages and apical extrusion of dentin debris during canal shaping with eight preparation techniques. A total of 208 canals in extracted human teeth were prepared by one operator using one type of file. The techniques included were standardized, stepback wi...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(06)80443-7
更新日期：1995-03-01 00:00:00
abstract：:Taurodontism is a morphoanatomical change in the shape of a tooth, which usually occurs in multirooted teeth. An enlarged body and pulp chamber, as well as apical displacement of the pulpal floor, are characteristic features. Endodontic treatment of a taurodont tooth is challenging, because it requires special care in...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200305000-00009
更新日期：2003-05-01 00:00:00
abstract：:Vascular casts of cat premolar pulps in various stages of growth were made by injection of low-viscosity resin into the pulpal blood vessels. Examination under a scanning electron microscope revealed that, in the young pulp, the main arterioles ascend in the center of the pulp and venules run along the side of the roo...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(89)80028-7
更新日期：1989-10-01 00:00:00
abstract：INTRODUCTION:The improvement of regenerative endodontic procedures requires an understanding of the key clinical questions combined with a fundamental biological knowledge of how the dental tissues behave during health, disease, and repair. Therefore, partnerships between clinicians and basic scientists are essential t...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2020.06.019
更新日期：2020-09-01 00:00:00
abstract：INTRODUCTION:The objective of this study was to investigate the association between chronic apical periodontitis (CAP) and low-birth-weight preterm births (LBWPB). METHODS:Sixty-three women in postpartum period were included in this case-control study. The case group consisted of mothers of LBWPB infants (n = 33), and...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.11.018
更新日期：2015-03-01 00:00:00
abstract：INTRODUCTION:This study was to investigate the effects of tricalcium silicate (Ca(3)SiO(5)) on proliferation and odontogenic differentiation of human dental pulp cells (hDPCs) in vitro. METHODS:The hDPCs were seeded in culture medium with or without Ca(3)SiO(5) extract and calcium hydroxide (Ca(OH)(2)) extract. Prolif...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.05.035
更新日期：2011-09-01 00:00:00
abstract：INTRODUCTION:Recently, it was shown that the biomineralization process promoted by the interaction of mineral trioxide aggregate (MTA) with dentin in phosphate-buffered saline (PBS) positively influenced the push-out bond strength of the cement. This study investigated if the use of a PBS intracanal dressing promotes t...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.06.014
更新日期：2010-10-01 00:00:00
abstract：INTRODUCTION:This study evaluated the effects of three different endodontic sealers on the bond strength of a fiber post cemented with adhesive resin cement. METHODS:Forty-eight extracted maxillary central incisors were prepared with the step-back technique and randomly divided into four groups (n=12 for each group): ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.11.014
更新日期：2010-03-01 00:00:00
abstract：INTRODUCTION:The direct effect of follicle-stimulating hormone (FSH) on bone resorption has been demonstrated recently. The aim of this study was to evaluate the effect of FSH inhibitor leuprorelin (LE) on alveolar bone loss resulting from experimental periapical lesions in ovariectomized (OVX) rats. METHODS:Twenty-se...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.01.011
更新日期：2010-04-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to perform a descriptive analysis of the occurrence of external cervical resorption (ECR) in relation to the patients' characteristics (sex, age, and tooth type) and the potentially involved predisposing factors. METHODS:This study includes data on 284 patients (337 teeth with ev...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.05.026
更新日期：2017-10-01 00:00:00
abstract：BACKGROUND:The aim of this in vitro study was to evaluate the depth of penetration of 4 different endodontic resin sealers into the radicular dentinal tubules with the aid of confocal microscopy. METHODS:Eighty single-rooted teeth were instrumented and divided into 4 groups composed of 20 teeth each. The samples were ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.05.017
更新日期：2012-10-01 00:00:00
abstract：INTRODUCTION:Alkaline phosphatase (ALP) plays an important role in inducing mineralization events in the dental pulp. This study investigated and compared the ALP levels in healthy and inflamed pulp in young and old human pulp. METHODS:Tissue samples were collected from young (<30 years) and old (>60 years) donors. In...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.10.003
更新日期：2016-01-01 00:00:00
abstract：:The purpose of this study was to compare intracanal bacterial reduction on teeth instrumented with 0.04 tapered nickel-titanium (NiTi) rotary instrumentation to bacterial reduction when using a stainless-steel K-file step-back technique using sterile saline irrigation. Forty-eight patients with apical periodontitis we...
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(98)80170-2
更新日期：1998-11-01 00:00:00
abstract：:Removing posts from root canals prior to endodontic retreatment is often a challenge. The Gonon post removing system (Thomas Extracteur De Pivots; FFDM-Pneumat, Bourges, France) is safe and efficient and can be used for anterior, bicuspid, and even molar teeth. The Gonon system is illustrated with one clinical case. ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(89)80200-6
更新日期：1989-11-01 00:00:00
abstract：:The extraoral sinus tract may occur as a result of an inflammatory process associated with a necrotic pulp. However, several non-odontogenic disorders may also produce an extraoral sinus tract. Thus, the differential diagnosis of this clinical finding is of paramount importance in providing appropriate clinical care b...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200312000-00015
更新日期：2003-12-01 00:00:00
abstract：:Twenty-one teeth with clinically asymptomatic periapical pathosis (class 3) were extracted and the isolation, identification, and localization of bacteria in the root apex were examined. Mixtures involving several bacteria were isolated from more than 60% of the cases. Scanning electron microscopy revealed bacterial m...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(07)80216-0
更新日期：1990-11-01 00:00:00
abstract：:The purpose of this study was to compare Schick CDR and Trophy RVGui direct digital radiography (DDR) systems for the ability to detect periapical lesions in human cadaver mandibles. Digital radiographs were exposed of teeth with normal periapical areas and of teeth with artificially prepared periapical lesions using ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000140571.23012.ff
更新日期：2005-04-01 00:00:00
abstract：INTRODUCTION:Currently, the success of periapical microsurgery is determined by the restoration of the lamina dura and the elimination of symptoms. However, inadequate site preservation may prevent later implant placement. Although not possible before, the advent of cone-beam computed tomographic imaging and computer-a...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.11.002
更新日期：2019-04-01 00:00:00
abstract：:In vitro root surface temperatures produced during post space preparation were measured. The preparations were made using a GPX bur with rotational speeds of 6,500, 8,000, 9,500, 11,000, and 15,000 rpm. The overall mean temperature increase ranged from 0.66 degree to 4.81 degrees C and was greatest at 8,000 rpm. When ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(96)80264-0
更新日期：1996-06-01 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：OBJECTIVES:Dentists can choose between metal and fiber post systems to provide post-retained restorations. The risk of tooth loss and other complications differs between different post systems, as do the initial treatment costs. We aimed to assess the cost-effectiveness of (1) cast metal (MC), (2) preformed metal (MP),...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.01.002
更新日期：2017-05-01 00:00:00
abstract：INTRODUCTION:Matrix extracellular phosphoglycoprotein (MEPE), a new member of the small integrin binding ligand N-glycosylated (SIBLING) family, is believed to play multifunctional roles in regulation of cell signaling, mineral homeostasis, and mineralization. METHODS:To study how MEPE affects the downstream genes inv...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.10.015
更新日期：2012-03-01 00:00:00
abstract：:The present study evaluates the morphological changes in root canal walls and temperature changes at root surfaces as a result of intracanal irradiation by erbium,chromium:YSGG laser under various conditions in vitro. Sixty single-rooted human teeth were examined. Root canals were prepared, and laser irradiation was p...
journal_title：Journal of endodontics
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00004770-200101000-00003
更新日期：2001-01-01 00:00:00
abstract：:The Editorial Board of the Journal of Endodontics has developed a literature-based study guide of topical areas related to endodontics. This study guide is intended to give the reader a focused review of the essential endodontic literature and does not cite all possible articles related to each topic. Although citing ...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2007.11.007
更新日期：2008-05-01 00:00:00
