Abstract:
:The aim of the study was to investigate the temperature rise of a nanocomposite and a conventional hybrid dental composite during photopolymerization when cured with halogen curing lamp (QHT) and light-emitting diode (LED). Temperature rise during photopolymerization of two commercially available composites (Filtek Supreme(R) and TetricCeram) were measured using a K-type thermocouple and a digital thermometer. Different curing modes were utilized to cure the composites: a high-intensity QHT unit (Optilux 501) in two different modes (standard and ramp), a low-intensity QHT unit (Coltolux 50), and an LED unit (Ultralume-2). Total temperature rise, polymerization reaction exotherm, and irradiation-induced temperature rise of the composites were determined. Degree of conversion of the specimens was measured using FTIR spectroscopy. The results revealed that the Filtek Supreme nanocomposite showed lower temperature rise and degree of conversion in comparison with the hybrid composite (p < 0.05). It was also found that the LED curing unit induced considerable total and irradiation temperature rise without any improvement in the degree of conversion. Ramp curing mode showed lower temperature rise and delayed gel point and was found to be more effective than QHT standard mode and LED units. Although it is claimed that the LED curing units exhibit lower temperature rise during the photopolymerization, the present study showed that the curing units have no advantage over the conventional QHT units regarding the temperature rise and degree of polymerization conversion.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Atai M,Motevasselian Fdoi
10.1007/s00784-008-0236-2subject
Has Abstractpub_date
2009-09-01 00:00:00pages
309-16issue
3eissn
1432-6981issn
1436-3771journal_volume
13pub_type
杂志文章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:This study aimed to investigate the effect of fracture orientation on the detection accuracy of vertical root fractures (VRFs) in non-endodontically treated teeth using four different cone beam computed tomography (CBCT) units. MATERIALS AND METHODS:Thirty eight out of 148 extracted human permanent teeth we...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-02905-0
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVE:The aim of this in vitro study was to compare fluorescence-aided caries excavation with conventional excavation based on the Martens and Vickers hardness of dentin at the cavity floor after caries removal. MATERIALS AND METHODS:In total, 20 extracted human teeth with dentin caries were bisected through the l...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-0999-y
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:This study aims to compare the clinical outcomes of a combination of enamel matrix derivatives (EMD) and a synthetic bone graft (biphasic calcium phosphate) with EMD alone in wide and deep one- and two-wall intrabony defects 36 months after treatment. MATERIAL AND METHODS:Thirty patients with chronic period...
journal_title:Clinical oral investigations
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00784-015-1522-4
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:The aim of this systematic review and meta-analysis (SRM) was to assess the postoperative pain (PP) after non-surgical endodontic retreatment (NSER) in a one visit compared to multiple visits. The PICO question used was "Does NSER in patients with unsatisfactory endodontic treatment in a one-visit visit have...
journal_title:Clinical oral investigations
pub_type: 杂志文章,meta分析
doi:10.1007/s00784-020-03767-7
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVES:This work aimed to comparatively evaluate the three modalities of vestibuloplasty around implants in the posterior mandible. MATERIALS AND METHODS:Forty patients who presented with a shallow vestibule and insufficient keratinized gingiva were divided into three groups: apically positioned flap only (APF gro...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-017-2320-y
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVE:SLC22A4/5 single nucleotide polymorphisms (SNPs) have been reported to affect inflammatory diseases. We report the relationship of these polymorphisms with adiposity and tooth loss as elucidated in a 10-year follow-up study. METHODS:Participants of the Study of Health in Pomerania (SHIP, N = 4105) were genot...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03594-w
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to compare the push-out bond strength of three calcium silicate cements to dentine after two different irrigation regimes. MATERIALS AND METHODS:One hundred eighty 2-mm-thick root sections were prepared. The sections were divided into three main groups (n = 60). In group A, the sec...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1082-4
更新日期:2014-05-01 00:00:00
abstract:OBJECTIVES:The aim of this study is to investigate the relationship between periodontal morphometric parameters and to develop a biotype classification based on the variables examined with the use of cone-beam computed tomography (CBCT). MATERIALS AND METHODS:Forty-two periodontally healthy subjects that underwent a C...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1694-y
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVES:In this single-blinded, prospective, randomized, controlled clinical trial, the effectiveness of an ozone gas or NaOCl/CHX disinfection protocol was compared within the root canal treatment of apical periodontitis. MATERIALS AND METHODS:Sixty permanent teeth were randomly allocated to one technique. The cli...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-016-1849-5
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVES:The aims of this study were to determine the quality of life of periodontally compromised patients after implant treatment (primary aim) and their satisfaction with the restoration and treatment approach (secondary aim). MATERIAL AND METHODS:In this study, 61 adult subjects were evaluated following non-surg...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1561-x
更新日期:2016-05-01 00:00:00
abstract::The objective was to evaluate the development of oral health-related quality of life (OHRQoL) in patients with complete dentures and the association between OHRQoL and patient satisfaction. Fifty-two patients (mean age, 66.3, 48.1% male) received dentures in at least one jaw. The analysis was conducted on participants...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-010-0483-x
更新日期:2012-02-01 00:00:00
abstract:OBJECTIVE:The aim of this prospective, randomized, clinical study was to assess the effect of photobiomodulation therapy (PBM) with low-level laser irradiation (LLLI) on postoperative pain after endodontic treatment. MATERIALS AND METHODS:Sixty patients, diagnosed with irreversible pulpitis in lower molar teeth, parti...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-018-2435-9
更新日期:2019-01-01 00:00:00
abstract::The aim was to determine the relationship between mercury content of resting and stimulated saliva, and blood and urine. Eighty subjects participated; 40 of them attributed their self-reported complaints to dental amalgam (patients), the others were matched with respect to age, sex and amalgam restorations (controls)....
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s007840000089
更新日期:2000-12-01 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
abstract:BACKGROUND:Cleft lip and palate (CLP) represents the most common malformation of the midfacial region worldwide. It can be suggested that the facial stigmatization, the speech impediment, and the long-standing pressure of treatment cause a range of life stressors. Neurocortical information is influenced by physiologica...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1465-9
更新日期:2016-01-01 00:00:00
abstract::The effect of pre-treatment of composite inlays on bonding performance between a resin composite inlay and a luting composite has not been fully studied. The aim of the present study was to evaluate the influence of three different pre-treatment modes on fatigue bond strength and marginal adaptation. One hundred twent...
journal_title:Clinical oral investigations
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00784-001-0138-z
更新日期:2001-12-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess whether and how the information obtained by means of cone beam computed tomography (CBCT) on maxillary posterior teeth differs from that obtained by panoramic radiography. MATERIALS AND METHOD:From 157 subjects (mean age 48 years, range 19-84 years; 89 females) referre...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-0963-x
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:The corona disease (COVID-19) is developing into one of the greatest challenges for healthcare professionals around the world. In this article, we report the detailed actions taken in the Department of Conservative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-University (LMU), Munich...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03440-z
更新日期:2020-08-01 00:00:00
abstract::This paper presents a short review of three groups of tools which can be or are used for the tissue engineering of mineralized oral structures: growth factor delivery systems (GFDS) and surface bioactivation with covalent bound peptides or with nanomechanically linked proteins. According to the reported personal exper...
journal_title:Clinical oral investigations
pub_type: 杂志文章,评审
doi:10.1007/s007840050128
更新日期:2000-06-01 00:00:00
abstract:OBJECTIVES:The study aimed at assessing, as primary objective, the periapical status and quality of root fillings, and, as secondary objective, the endodontic treatment need of a German urban population in a cross-sectional study 20 years after the first one. MATERIALS AND METHODS:Clinical and radiographic data of 353...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2566-z
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:The aim of this article is to compare the influence of surface treatment on the integration (at 2, 4 and 8 weeks) of 120 dental implants inserted in 60 tibiae of rabbits. MATERIALS AND METHODS:Four different surfaces were double-blind tested: blasted, acid-etched and discrete crystal deposition (DCD) (group ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-014-1241-2
更新日期:2015-03-01 00:00:00
abstract::Oral verrucous carcinoma (OVC) is a rare variant of squamous cell carcinoma with a characteristic morphology and specific behavior. To date, few studies are available focusing the prevalence and clinicopathologic features of the oral verrucous carcinoma in Brazilian population. A total of 3,500 primary oral well-diffe...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-006-0050-7
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVES:The present dental bleaching case report describes a new method that precisely quantifies the daily wearing-times of the bleaching product by inserting a microsensor in the acetate custom tray. The bleaching efficacy was also discussed since the patient was previously submitted to enamel microabrasion. METH...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2439-5
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:Bioactive proteins are sequestered in human dentine and play a decisive role in dental pulp regeneration and repair. They can be released and exposed on the dentine surface by acids, but also chelators, such as ethylenediaminetetraacetic acid (EDTA). The objectives of this study were (i) to evaluate whether ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-016-1824-1
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVES:The aim of the present study was to investigate different fluorescence-based, two-color viability assays for visualization and quantification of initial bacterial adherence and to establish reliable alternatives to the ethidium bromide staining procedure. MATERIALS AND METHODS:Bacterial colonization was att...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-012-0792-3
更新日期:2013-04-01 00:00:00
abstract::The purpose of the present study was to decide whether composite resin or conventional glass ionomer cement should be preferred as a base material in endodontically treated premolars. Twelve extracted human maxillary premolars were mounted in a universal testing machine at a 35 degrees angle. Cuspal stiffness was dete...
journal_title:Clinical oral investigations
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s007840050049
更新日期:1998-06-01 00:00:00
abstract:OBJECTIVES:This study aimed to investigate the root canal morphology of mandibular first premolar teeth in a population from southwestern China by micro-computed tomography (micro-CT). MATERIALS AND METHODS:Human mandibular first premolars (115) were selected and prepared for micro-CT analysis with a slice thickness o...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-012-0778-1
更新日期:2013-04-01 00:00:00
abstract::Apical periodontitis (AP) are frequent findings in contemporary dental practice in association with dental pathology or dental care. They have also been studied from an anthropological background. The purpose of this study was to compare the prevalence of apical and dental lesions in an archeological Middle Ages sampl...
journal_title:Clinical oral investigations
pub_type: 历史文章,杂志文章
doi:10.1007/s00784-005-0318-3
更新日期:2005-09-01 00:00:00
abstract::The purpose of this study was to test the hypothesis of multidimensionality of oral and general health behaviour. To evaluate the proposed behavioural dimensions, relationships with individual beliefs and socio-economic factors were explored. A simple random sample of 1190 residents born in 1972 was drawn from the pop...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s007840000102
更新日期:2001-06-01 00:00:00