Abstract:
OBJECTIVES:The objective of the study was to compare the retreatability of three calcium silicate-containing sealers (BioRoot RCS, MTA Fillapex, Endo C.P.M.) and an epoxy resin-based sealer (AH Plus) with different root canal instruments (Hedström files, Reciproc R40, Mtwo retreatment file R 25/.05 + Mtwo 40/.06, and F6 SkyTaper) concerning sealer remnants and retreatment time. MATERIALS AND METHODS:Root canals of 192 teeth were instrumented with Reciproc R40. All root canals were obturated using the single-cone technique with Reciproc R40 gutta-percha and one of the sealers (n = 48 per sealer). Two months later, retreatment was performed using one of the mentioned instruments (n = 12 per instrument and sealer). The roots were split longitudinally, and both halves were investigated using light microscopy. The percentage of sealer remnants covering the root canal wall was evaluated using the software ImageJ. The time required for retreatment was recorded. Statistical analysis was performed using two-way ANOVA and Student-Newman-Keuls post hoc test. RESULTS:Regarding the percentage of root canal filling remnants as well as retreatment time, two-way ANOVA indicated that the results were significantly affected by the sealer (p < 0.001) and by the instrument used (p < 0.05). Overall, the use of AH Plus was associated with significantly more remnants compared to all other sealers (p < 0.001) and F6 SkyTaper instruments allowed significantly faster retreatment than the other instruments (p < 0.05). CONCLUSION:The retreatability of calcium silicate-containing sealers was better compared to AH Plus as less sealer remnants and shorter retreatment times were observed. Retreatment with engine-driven NiTi instruments was superior compared to hand instrumentation. CLINICAL RELEVANCE:Engine-driven NiTi instruments are better suited to remove root canal fillings than stainless steel Hedström files.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Donnermeyer D,Bunne C,Schäfer E,Dammaschke Tdoi
10.1007/s00784-017-2156-5subject
Has Abstractpub_date
2018-03-01 00:00:00pages
811-817issue
2eissn
1432-6981issn
1436-3771pii
10.1007/s00784-017-2156-5journal_volume
22pub_type
杂志文章abstract:OBJECTIVES:To describe changes in growth factor mediators in the gingival crevicular fluid (GCF) of patients with aggressive periodontitis (AgP) undergoing regenerative (GTR) and access flap (AF) surgery. MATERIALS AND METHODS:This was a 12-month, single-blind, split-mouth RCT involving 18 AgP patients with a bilatera...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2752-z
更新日期:2019-08-01 00:00:00
abstract::The purpose of the present study was to examine the effects of a newly developed water-soluble reduced chitosan on Streptococcus mutans, plaque regrowth, and biofilm vitality. A 1.0%, water-soluble reduced chitosan, with pH ranging from 6.0 to 6.5, molecular weights between 3,000 and 5,000 Da, and 70% degree of deacet...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-006-0038-3
更新日期:2006-06-01 00:00:00
abstract:OBJECTIVE:Ex-vivo evaluation of the detectability of vertical root fractures (VRFs) using digital subtraction radiography (DSR) and conventional digital periapical radiography (CDPR); investigation of the effect of root canal filling, x-ray angulation, and thickness of the VRF in the diagnostic accuracy. MATERIALS AND...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03245-0
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVES:Determine the association between sialadenitis and osteonecrosis of the jaw (ONJ) in head and neck cancer (HNC) patients with varying severity of sialadenitis, treatment modalities, and cancer locations. MATERIALS AND METHODS:A total of 40,168 HNC patients, including 1907 ONJ subjects and 7559 matched compa...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2465-3
更新日期:2019-02-01 00:00:00
abstract::Resin-bonded fixed partial dentures (RBFPD) are used as a minimal invasive, tooth-preventing alternative for replacing anterior teeth. Zirconia cantilever restorations were supposed to show sufficient strength for a clinical application. The aim of this investigation was to determine the fracture characteristics of ca...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-009-0254-8
更新日期:2009-12-01 00:00:00
abstract:OBJECTIVE:The aim of this work was to evaluate the anti-inflammatory and antiresorptive effects of Calendula officinalis (CLO) on alveolar bone loss (ABL) in rats. MATERIAL AND METHODS:Male Wistar rats were subjected to ABL by ligature with nylon thread around the second upper left molar. The contralateral hemimaxilla...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-017-2308-7
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to evaluate the effect of early functional loading to plateaued implants on bone formation and implant stability in a dog model. MATERIALS AND METHODS:Early loading (EL), nonloading control, and delayed loading (DL) groups were compared using six beagle dogs under functional lo...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-0929-z
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:Different studies suggest that inflammation as well as hypoxia leads to an increase of p53 protein levels. However, the implication of p53 during oral inflammatory processes is still unknown. The aim of this study was therefore to investigate the effect of hypoxia and inflammation on p53 regulation in human ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1679-x
更新日期:2016-09-01 00:00:00
abstract:OBJECTIVE:To evaluate the systemic and periodontal conditions, as well as the determinants of health in pregnant women with and without obesity/overweight during the second and third trimesters of pregnancy and after delivery. MATERIALS AND METHODS:In the second trimester (T1), 93 pregnant women were divided into two ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-02932-x
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to evaluate the efficacy of four different side-to-side toothbrushes and the impact of various brushing parameters on noncontact biofilm removal in an adjustable interdental space model. MATERIALS AND METHODS:A three-species biofilm, consisting of Porphyromonas gingivalis, Fu...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-016-1969-y
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:Our aim was to investigate the disease-free survival in patients with tongue squamous cell carcinoma receiving metronomic neoadjuvant chemotherapy with 5-fluorouracil prodrugs (UFT or S-1) plus bleomycin compared with those who had up-front surgery retrospectively. METHODS:In this retrospective study, 108 p...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2689-2
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVES:This case series compared the clinical survival of tooth-implant-supported (TI-S) and tooth-supported (T-S) three-unit fixed dental prostheses (FDPs) with zirconia frameworks and described the incidence of biological and technical complications. MATERIALS AND METHODS:Forty-four patients received 27 TI-S FDP...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1594-1
更新日期:2016-06-01 00:00:00
abstract:BACKGROUND:The use of the autogenous periosteal graft as biological barrier has been proposed for periodontal regeneration. The aim of this study was to evaluate the histometric findings of the subepithelial connective tissue graft as barrier in intrabony defects compared to a bioabsorbable membrane. METHODS:Three-wal...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-014-1323-1
更新日期:2015-06-01 00:00:00
abstract:OBJECTIVES:This study aimed to conduct a methodological assessment of paper-based systematic reviews (SR) published in oral health using a validated checklist. A secondary objective was to explore temporal trends on methodological quality. MATERIAL AND METHODS:Two electronic databases (OVID Medline and OVID EMBASE) we...
journal_title:Clinical oral investigations
pub_type: 杂志文章,评审
doi:10.1007/s00784-015-1663-5
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to validate the reproducibility and observer variability of the Functional Implant Prosthodontic Score (FIPS), while considering the level of dental experience for intra- and inter-examiner analysis. MATERIALS AND METHODS:A total of 44 examiners (n = 31 undergraduate dental student...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-017-2332-7
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVES:To explore the pathophysiology of proliferative verrucous leukoplakia, a rare oral disorder that exhibits high rates of recurrence and malignant transformation, through a RNAseq case-control study. MATERIAL AND METHODS:We obtained oral biopsies from 10 patients with verrucous leukoplakia lesions and from th...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03575-z
更新日期:2020-09-11 00:00:00
abstract:OBJECTIVES:Aberrant growth of the maxillomandibular complex in patients with cleft lip and/or palate (CL/P) can be managed with dentofacial orthopaedics. However, no consensus has been reached regarding timing and evolution of the maturational stages. Therefore, the aim of this study is to determine if patients with CL...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-021-03790-2
更新日期:2021-01-23 00:00:00
abstract:OBJECTIVE:This work aimed to study the role of inflammation in medication-related osteonecrosis of the jaw (MRONJ) in rats with focus on Wnt signaling. METHODS:A total of 36 female Wistar rats (12 weeks ± 200 g) were divided into 2 groups (n = 6) in 3 experiments: saline (SAL) and zoledronic acid (ZOL). For MRONJ indu...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03551-7
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to analyze the porosity of three photopolymerizable resin composites: one high-viscous resin composite (Filtek™ P60®, 3 M™ ESPE™), one moderate-viscosity resin composite (Grandio®, VOCO™), and one low-viscous resin composite (Filtek™ Supreme XTE®, 3 M™ ESPE™). MATERIALS AND METHODS...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1139-4
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVES:Investigate the biochemistry of in vivo healthy oral tissues through Raman spectroscopy. We aimed to characterize the biochemical features of healthy condition in oral subsites (buccal mucosa, lip, tongue, and gingiva) of healthy subjects. More specifically, we investigated Raman spectral characteristics and...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2714-5
更新日期:2019-07-01 00:00:00
abstract:: ...
journal_title:Clinical oral investigations
pub_type: 信件
doi:10.1007/s00784-018-2619-3
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVES:The purpose of this laboratory study was to evaluate the influence of the attachment design and material on the retention of resin-bonded attachments (RBAs) before and after dynamic loading. MATERIALS AND METHODS:Forty-eight caries-free human premolars were prepared for RBAs fabricated either from a CoCr al...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2544-5
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:It was the aim of the study to analyse the prevalence of maxillofacial trauma (MFT) in severely injured patients after road traffic accidence (RTA) and to investigate associated factors. MATERIALS AND METHODS:In a retrospective study, data from patients after RTA by the TraumaRegister DGU® from 1993 to 2014...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-03024-6
更新日期:2020-01-01 00:00:00
abstract::We determined the effects of soluble or coated nanocrystalline hydroxyapatite paste (nano-HA) and enamel matrix derivative (EMD) on proliferation, adhesion, and migration of periodontal ligament fibroblasts (PDLs). Cultured PDLs were stimulated with nano-HA paste or EMD in a soluble form or were coated to the surface ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-011-0570-7
更新日期:2012-06-01 00:00:00
abstract::The present study examines the three-dimensional (3D) morphology of early approximal subsurface enamel caries lesions and subjacent dentin reactions in deciduous molars. Twenty-three extracted primary molars were embedded in Technovit 9100 and serial sections were cut using a saw microtome. Forty approximal lesions we...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s007840050066
更新日期:1998-12-01 00:00:00
abstract::The present study compared the recovery of six periodontal pathogens by paper point samples from two different aspects of periodontal lesions by quantitative real-time polymerase chain reaction (PCR). Twenty patients with untreated chronic periodontitis were randomized into two groups. Before subgingival instrumentati...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-009-0333-x
更新日期:2010-10-01 00:00:00
abstract:OBJECTIVE:This study investigated the effect of passive ultrasonic irrigation (PUI) on diffusion of hydroxyl ions through radicular dentine. MATERIALS AND METHODS:After chemomechanical preparation of root canals in 60 human teeth, the cementoenamel junction and the apical 3 mm of each root were covered with fast-setti...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1500-x
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVES:The aim of this research was to analyse the dental discolouration caused by mineral trioxide aggregate (MTA) induced by bismuth oxide and also assess the colour stability of other dental cements. MATERIALS AND METHODS:Bismuth oxide, calcium tungstate and zirconium oxide were placed in contact with sodium hy...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1466-8
更新日期:2015-12-01 00:00:00
abstract:: ...
journal_title:Clinical oral investigations
pub_type: 评论,信件
doi:10.1007/s00784-018-2636-2
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVES:Several studies have shown the possible involvement of Helicobacter pylori infection in individuals with recurrent aphthous stomatitis (RAS), but the relationship remains controversial. This meta-analysis was performed to validate the association between RAS and H. pylori infection. MATERIALS AND METHODS:Th...
journal_title:Clinical oral investigations
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s00784-014-1230-5
更新日期:2014-07-01 00:00:00