Abstract：
:The aim of the present study was to investigate and compare the surface deformations of different NiTi rotary files after retreatment under scanning electron microscope (SEM). A total of 240 upper central incisor teeth were obturated with vertical compaction technique and divided into 6 groups. Root canals were retreated by ProTaper Next (PTN), Twisted File Adaptive (TFA), Reciproc (RPC), ProTaper Universal Retreatment (PTR), R-Endo and Mtwo-R NiTi rotary systems. The files investigated under SEM at different magnifications and photomicrographs were captured. The photomicrographs were classified and scored. Kruskal-Wallis and Dunn tests were performed for statistical analyze at 5% significance level. PTR and RPC groups were free of defects like file separation, curving and unwinding but PTN and TFA groups showed 50% file separation. According to the photomicrographs that were captured at high magnification; there were no statistically difference between groups at the coronal thirds of the files (P > 0.05), at the middle third PTN and TFA groups showed statistically more deformation than the other groups (P < 0.05). At the apical third Reciproc was statistically showed less deformation than the other all groups (P < 0.05). Within the limitation of this in vitro study, all NiTi files showed surface deformation in SEM observation after retreatment procedures. There was less deformation in PTR and RPC groups according to other.
journal_name
Odontologyjournal_title
Odontologyauthors
Özyürek T,Demiryürek EÖdoi
10.1007/s10266-019-00454-2subject
Has Abstractpub_date
2020-04-01 00:00:00pages
213-221issue
2eissn
1618-1247issn
1618-1255pii
10.1007/s10266-019-00454-2journal_volume
108pub_type
杂志文章相关文献
Odontology文献大全abstract：:The aim of this study was to evaluate the removal of the smear layer by some commonly used (needle-and-syringe irrigation, sonic activation, ultrasonically activated irrigation) and new root canal irrigation strategies (negative pressure irrigation and polymer rotary file) using a novel approach by comparing pre- and ...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-018-0373-2
更新日期：2019-04-01 00:00:00
abstract：:The aim of the study was to investigate any correlation between tactile sensation and occlusal loading conditions of mandibular premolars and molars, by means of tactile detection threshold (TDT). TDTs of mandibular premolars and molars of twenty adults were determined by calibrated monofilaments. Occlusal force (OF) ...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-011-0007-4
更新日期：2011-07-01 00:00:00
abstract：:Periodontal ligament is considered a rich source of mesenchymal stem cells for pulp regeneration. This study investigated the effect of iloprost, a prostacyclin analog, on cell proliferation and the expression of angiogenesis-related genes in human periodontal ligament cells (hPDLs) in vitro. The hPDLs were treated wi...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-017-0307-4
更新日期：2018-01-01 00:00:00
abstract：:This study assessed the antibacterial activity of BioRoot RCS in comparison with that of the Totalfill BC and AH Plus sealers against Enterococcus faecalis biofilms in dentinal tubules using confocal laser-scanning microscopy. Sixty-six root dentin halves were prepared and sterilized. Three sections were used to ensur...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-019-00425-7
更新日期：2019-10-01 00:00:00
abstract：:The purpose of this study was to evaluate the color difference of nanohybrid and ormocer-based composite resins with different thicknesses when 4 different shades of resin luting cement were used. 56 disc specimens of each composite resin (Aelite aesthetic enamel, Ceram-X mono) with 0.5 and 1 mm thicknesses were fabri...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-017-0311-8
更新日期：2018-04-01 00:00:00
abstract：:Chemerin is a chemoattractant protein that directs inflammatory cells that express its receptor chemokine receptor-like 1 (ChemR23) towards sites of inflammation. C-C chemokine receptor-like 2 (CCRL2), is the other receptor of chemerin, improves the interaction between chemerin and ChemR23. The aim of this study was t...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-017-0297-2
更新日期：2018-01-01 00:00:00
abstract：:The aim of this study was to compare the immediate postoperative period of participants rehabilitated with dental implants placed with a conventional technique or with a minimally invasive technique, without a mucoperiosteal flap elevation (flapless). Participants who needed implant placement were divided into two gro...
journal_title：Odontology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10266-018-0343-8
更新日期：2018-07-01 00:00:00
abstract：:Root development of permanent teeth is disturbed in survivors of childhood cancer. Cyclophosphamide (CY) is a cytostatic drug commonly used for chemotherapy in children with cancer. This study aimed to evaluate the effects of CY on the development of molar teeth until the completion of occlusion in young mice, focusin...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-014-0158-1
更新日期：2015-05-01 00:00:00
abstract：:The aim of this study was to investigate margin integrity of Class V composite restorations in demineralized and sound enamel after bonding with different etch-and-rinse and self-etch adhesive systems. Out of a total of 60 specimens from bovine incisors, 30 specimens were demineralized (21 days, acid buffer, pH 4.95) ...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-018-0398-6
更新日期：2019-07-01 00:00:00
abstract：:The aim of this clinical study was to evaluate whether or not an association exists between the presence of enamel craze lines and the prevalence of tooth sensitivity (TS) after in-office bleaching. Subjects that met the inclusion criteria (N = 23) were screened to detect the existence of enamel craze lines. In total,...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-013-0104-7
更新日期：2014-07-01 00:00:00
abstract：:The goal of this short communication is to present finite element analysis comparison of the stress distribution between CAD/CAM full crowns made of Lava Ultimate and of IPS e.max CAD, adhesively luted to natural teeth and to implant abutments with the shape of natural teeth. Six 3D models were prepared using a 3D con...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-016-0276-z
更新日期：2017-04-01 00:00:00
abstract：:The aim of this study is to determine the levels of MFG-E8 and interleukin (IL)-1β in saliva and gingival crevicular fluid (GCF) associated with periodontal health and disease. Whole saliva and GCF samples were obtained from systemically healthy participants who were either periodontally healthy (n = 24) or suffered f...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-019-00419-5
更新日期：2019-10-01 00:00:00
abstract：:Phosphoglucosamine mutase (GlmM; EC 5.4.2.10) catalyzes the interconversion of glucosamine-6-phosphate to glucosamine-1-phosphate, an essential step in the biosynthetic pathway leading to the formation of the peptidoglycan precursor uridine 5'-diphospho-N-acetylglucosamine. We have recently identified the gene (glmM) ...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-011-0026-1
更新日期：2012-01-01 00:00:00
abstract：:In the parotid glands (PGs) of intact male mice (12 weeks of age, ICR strain), immunofluorescence labels for a true tissue kallikrein, mK1, and for nerve growth factor (NGF) were recognized through the subluminal edges of the striated duct (SD) segments and interlobular duct segments. Because of their small size, secr...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-008-0090-3
更新日期：2009-01-01 00:00:00
abstract：:Masticatory performance of subjects from a general urban population was examined by measurement at baseline and again at follow-up, to clarify whether periodical utilization of dental services (PUDS) is effective in maintaining masticatory performance. Subjects comprised 1010 people (414 males, 596 females; mean age a...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-020-00501-3
更新日期：2020-10-01 00:00:00
abstract：:In order to clarify the influence of epinephrine in local anesthetics on endogenous epinephrine, we examined the concentration of plasma catecholamines (epinephrine and norepinephrine) and hemodynamics by administering 4 ml of 2% lidocaine containing different concentrations of epinephrine. Forty-three healthy adult m...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-005-0044-y
更新日期：2005-09-01 00:00:00
abstract：:There exists a close connection between changes occurring in the teeth and those occurring in the jaw during the evolutionary process. In mammals, the roots of teeth are supported, along with periodontal ligaments and alveolar bones by a unique structure termed the gomphosis. In the present study, we performed combine...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-020-00489-w
更新日期：2020-07-01 00:00:00
abstract：:The purpose of this study was to evaluate the effect of filler size on the wear of resin cements. Materials tested included four experimental dual-cure resin cements (Kuraray) consisting of different-sized filler particles. A rectangular box cavity was prepared on the flattened occlusal surface of extracted human mola...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-001-8183-2
更新日期：2001-11-01 00:00:00
abstract：:For purpose of enhancing the antibacterial activity of a universal adhesive, the antimicrobial peptide nisin was incorporated into Single Bond Universal and its antibacterial effect on Streptococcus mutans monospecific biofilms and saliva-derived multispecies biofilms was studied. Nisin was incorporated into Single Bo...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-019-00478-8
更新日期：2020-07-01 00:00:00
abstract：:To investigate the effect of benzalkonium chloride (BAC) addition to ethylenediaminetetraacetic acid (EDTA) on transforming growth factor-β1 (TGF-β1) release, as well as attachment and proliferation of dental pulp stem cells (DPSCs) on dentin. A total of standard 268 human dentin disks were prepared and immersed in 1....
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-020-00545-5
更新日期：2020-08-07 00:00:00
abstract：:This study investigated the prevalence and distribution of anomalies of permanent dentition in the current Japanese population by examining an unbiased sample. We conducted a survey of dental anomalies by mass dental screening at eight high schools in 2012. Participants were all students with permanent dentition. Dent...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-015-0225-2
更新日期：2016-09-01 00:00:00
abstract：:The most studied medical condition related with dental erosions is gastroesophageal reflux disease (GERD). The aim of this study was to assess other predictors of dental erosions besides GERD in outpatients referred for upper digestive endoscopy. In a cross-sectional study, we prospectively evaluated 235 patients who ...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-020-00505-z
更新日期：2020-10-01 00:00:00
abstract：:The cytotoxicity of a dental alloy depends on, but is not limited to, the extent of its corrosion behavior. Individual ions may have effects on cell viability that are different from metals interacting within the alloy structure. We aimed to investigate the cytotoxicity of individual metal ions in concentrations simil...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-014-0192-z
更新日期：2016-05-01 00:00:00
abstract：:The purpose of this noninferiority trial was to compare postoperative pain relief after one-visit root canal therapy (ORCT) with a pulpotomy performed with a new endodontic calcium-enriched mixture cement (PCEM) in human permanent molars with irreversible pulpitis. A total of 407 selected patients were randomly alloca...
journal_title：Odontology
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1007/s10266-010-0127-2
更新日期：2010-07-01 00:00:00
abstract：:The purposes of this study were to establish normative data for mesiodistal tooth crown diameters and arch dimensions in Mongolian adults and to compare them with those of Japanese adults. The study materials comprised dental casts of 100 modern Mongolian and 100 Japanese subjects (50 males, 50 females for each) with ...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-013-0130-5
更新日期：2014-07-01 00:00:00
abstract：:To compare the 1-year clinical performance of lithium disilicate and resin composite CAD/CAM onlay restorations. Twenty patients that required two restorations in posterior teeth, with at least one cusp to be covered, received two onlays. One was made with IPS e.max CAD (Ivoclar-Vivadent) and the other with Lava Ultim...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-020-00539-3
更新日期：2021-01-01 00:00:00
abstract：:We aimed to evaluate the effect of a denture cleanser and NaOCl 5.25% solution on the modulus of elasticity, the ultimate stress, and the weight changes of Co-Cr and Ti-6Al-7Nb alloys. To evaluate the modulus of elasticity and ultimate stress, 24 Co-Cr and 24 Ti-6Al-7Nb castings were fabricated, immersed in Corega Ext...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-010-0135-2
更新日期：2011-01-01 00:00:00
abstract：:We aimed at comparing the performance of vacuum-formed thermoplastic retainers (VFR) worn either full-time or part-time, in maintaining orthodontic treatment results in terms of tooth alignment, arch form and occlusion. We reviewed randomized and prospective controlled clinical trials comparing VFR wearing protocols a...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-016-0254-5
更新日期：2017-04-01 00:00:00
abstract：:We examined the expression of keratin 18 (K18), by immunofluorescence staining, while monitoring morphological changes in the periderm on the lingual epithelium of rats by laser-scanning microscopy of epoxy resin-embedded, semi-ultrathin sections. We also examined differential interference contrast (DIC) images of the...
journal_title：Odontology
pub_type： 杂志文章
doi：10.1007/s10266-005-0059-4
更新日期：2006-09-01 00:00:00
abstract：:Atherosclerosis is an important component of coronary heart disease (CHD), which is the leading cause of death worldwide, including in Japan. Because atherosclerotic processes are typified by chronic inflammatory responses, which are similar to those elicited by chronic infection, the role of infection in promoting or...
journal_title：Odontology
pub_type： 杂志文章,评审
doi：10.1007/s10266-009-0104-9
更新日期：2009-07-01 00:00:00
