Abstract:
:The objective of this study was to investigate the effects of precuring of primer coated on bracket bases on the strength of bonds between metal brackets and gold alloy. Square type III gold alloy plates were sandblasted with 30 μm silicon dioxide. After silica coating, excessive particles were removed gently with air. Silane was then applied, and maxillary central incisor metal brackets were bonded to each conditioned alloy surface with Transbond XT. Half of the specimens were precured at the bracket base after primer coating and the other half was not precured before bonding to the alloy surface. After bracket positioning, samples were cured using a light emitting diode (LED) for 40 seconds. Shear bond strengths were tested and adhesive remnant index (ARI) was evaluated after 1 hour and 24 hours. The primer precuring and 24 hours group exhibited highest bond strength (12.53 MPa) and the no precuring and 1 hour group showed lowest bond strength (5.58 MPa). Precured groups showed lower ARI scores. Due to the shallow curing depth of LED light and inhibition of transillumination at the metal surface, primer precuring at the bracket base is required for secure bracket bonding on gold alloy surfaces using LED curing units.
journal_name
Eur J Orthodjournal_title
European journal of orthodonticsauthors
Shon WJ,Kim TW,Chung SH,Jung MHdoi
10.1093/ejo/cjq163subject
Has Abstractpub_date
2012-02-01 00:00:00pages
72-6issue
1eissn
0141-5387issn
1460-2210pii
cjq163journal_volume
34pub_type
杂志文章abstract:Background/objectives:Maxillary tooth distal movement is a treatment option for Class II malocclusion. This prospective clinical study (split-mouth design) was aimed to compare chondroitin sulphate (CS) levels in gingival crevicular fluid (GCF), the rates of tooth movement, and patient pain and discomfort during segmen...
journal_title:European journal of orthodontics
pub_type: 杂志文章,随机对照试验
doi:10.1093/ejo/cjx092
更新日期:2018-09-28 00:00:00
abstract::The surface topography of 100 clinically used archwires of stainless steel, beta-, or nickel-titanium were investigated that had contacted either ceramic or stainless steel brackets. One group consisted of two sets: 60 wires with no treatment records accessed to bias analyses, and 40 wires for which extensive clinical...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/22.4.409
更新日期:2000-08-01 00:00:00
abstract::Based on observations of longitudinal changes in dental arch dimensions, it has been stated that an individuality of arch form and an integrity of this form exists. However, longitudinal studies evaluating arch form changes have rarely been reported in the literature. The purpose of this investigation was to use a com...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/23.1.51
更新日期:2001-02-01 00:00:00
abstract:OBJECTIVES:Loosening and loss rates of monocortical mini-implants are relatively high, therefore the following null hypothesis was tested: 'The local bone stress in mono and bicortically-anchored mini-implants is identical'. MATERIAL AND METHODS:Anisotropic Finite Element Method (FEM) models of the mandibular bone, in...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjt023
更新日期:2014-10-01 00:00:00
abstract::The aims of this study were to provide a description of the craniofacial morphology of Singaporean Chinese children and to compare gender differences. Lateral cephalometric radiographs were obtained of 81 Singaporean Chinese children (31 boys and 50 girls; mean age 12.7 and 12.5 years, respectively, standard deviation...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/26.6.605
更新日期:2004-12-01 00:00:00
abstract::The aim of the present study was to compare patient, parent and clinician perceived need for orthodontic treatment in relation to normative orthodontic treatment need as measured by the Index of Orthodontic Treatment Need (IOTN). A prospective cross-sectional study was designed to address this aim. The sample comprise...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/26.3.265
更新日期:2004-06-01 00:00:00
abstract:Background:Hawley retainers (HRs) and vacuum formed retainers (VFRs) are the most commonly used removable retainers in the orthodontic practice. Patients' cooperation in wearing these appliances is affected by the levels of discomfort and oral impairment. The evidence regarding their acceptably among orthodontic patien...
journal_title:European journal of orthodontics
pub_type: 杂志文章,随机对照试验
doi:10.1093/ejo/cjx024
更新日期:2017-08-01 00:00:00
abstract::The publication of the three-paper series on the effects of two slot sizes on treatment parameters in this issue, targets a topic, which has attracted a lot of discussion based primarily on anecdotal evidence. The conclusive evidence contribute to the lack of variation of treatment variables with slot size selection, ...
journal_title:European journal of orthodontics
pub_type: 评论,杂志文章
doi:10.1093/ejo/cjy051
更新日期:2019-05-24 00:00:00
abstract:Aim:To assess the association between tooth wear (TW) and gingival recession (GR). Materials and Methods:Two hundred and ten orthodontically treated participants (100 males) were evaluated. GR and TW were rated independently by four raters on plaster models at four time points: before treatment (T1), mean age 13.8 yea...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjx083
更新日期:2018-07-27 00:00:00
abstract:Objectives:To assess arch width, palatal surface area, and volume in surgically treated unilateral cleft lip and palate (UCLP) in mixed dentition children in comparison with non-cleft lip and palate (NCLP) children using a 3D laser scanning. Materials and Methods:38 subjects (Caucasian origin), 5.63-11.9 years of age ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjx019
更新日期:2017-11-30 00:00:00
abstract::The aim of this study was to identify the craniofacial characteristics of 16 osteogenesis imperfecta (OI) patients, 10 males and 6 females, aged 7-15 years. The control group comprised 863 Chinese children from 6 to 18 years of age. Eleven cephalometric reference points and 25 variables were measured on the lateral ce...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjl035
更新日期:2007-06-01 00:00:00
abstract::The aim of the present study was to examine dentoalveolar development in subjects with an 'ideal' (normal) occlusion. The material comprised 436 study casts of 189 male and 247 female subjects of Swedish origin between the ages of 5 and 31 years with no history of orthodontic treatment. Tooth width, and arch length, w...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjn124
更新日期:2009-04-01 00:00:00
abstract::The aims of this study were to investigate the effects of two surface-conditioning methods on the shear bond strength (SBS) of metal brackets bonded to three different all-ceramic materials, and to evaluate the mode of failure after debonding. Twenty feldspathic, 20 fluoro-apatite, and 20 leucite-reinforced ceramic sp...
journal_title:European journal of orthodontics
pub_type: 杂志文章,随机对照试验
doi:10.1093/ejo/cjq132
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVES:Mastication is an essential function that prepares the food for swallowing and digestion and may be related to nutritional status. Thus, the aims of this study were to evaluate the masticatory parameters in overweight and obese children and the relation between bite force and anthropometric evaluation, food ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjv092
更新日期:2016-08-01 00:00:00
abstract:Background:Detection of pubertal growth peak is vital in orthodontic treatment timing and planning. Gingival crevicular fluid (GCF) contains abundant proteins from different sources and is an ideal source of biomarkers. The aim of this research is to detect candidate GCF biomarkers of pubertal growth by tandem mass tag...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjx082
更新日期:2018-07-27 00:00:00
abstract:Aim:The aim of this study was to describe hard and soft tissue changes after mandibular advancement surgery and to investigate the possible differences between Class II facial patterns. Materials and methods:Lateral cephalograms of 109 patients who underwent combined orthodontic treatment and bilateral sagittal split ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjx003
更新日期:2017-10-01 00:00:00
abstract::The purpose of this investigation was to evaluate the effects of dental tipping and rotation immediately after surgically assisted rapid palatal expansion (SARPE). Fourteen patients (10 females, four males; mean age 25.6 years) who required a SARPE procedure were available for this study. A palatal expander appliance ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/25.4.353
更新日期:2003-08-01 00:00:00
abstract::Different types of ipriflavone (IF) have been reported to be effective when used as a remedy for bone loss due to osteoporosis. However, no information is available regarding the relationship between IF and jaw bone structure. The aim of this study was to examine the effect of IF on rat mandibles during the growth sta...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjh099
更新日期:2005-02-01 00:00:00
abstract::The aim of this retrospective study was to examine the dental changes which occurred during buccal segment retraction in 39 subjects considered suitable for treatment with headgear to the maxillary dentition. Initially, a removable en masse appliance was fitted to distalize the buccal segments. Once the molar relation...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/20.1.5
更新日期:1998-02-01 00:00:00
abstract:Background and objectives:Apart from the primary effect of bite-blocks on tooth position, they may also influence the mandibular condylar growth. Our aim was to investigate their influence on the condylar morphology, with variable masticatory forces. Material and methods:Fifty-two 4-week old male rats were divided int...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjx072
更新日期:2018-05-25 00:00:00
abstract:BACKGROUND:Hyaluronic acid (HA) is a major molecular component of the articular cartilage of the temporomandibular joint (TMJ) influencing joint lubrication. Functional lateral shift of the mandible (FLSM) can lead to malocclusion. This study investigated the effects of FLSM on HA metabolism and lubrication of the TMJ ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjaa012
更新日期:2020-02-29 00:00:00
abstract::The aim of this study was to evaluate the effects of the headgear activator (HGA) and Herbst appliance during active treatment and retention and at follow-up in children with a skeletal Class II malocclusion. The two groups comprised 16 consecutive male patients (mean age 11.6 +/- 1.42 years) treated with a HGA and 16...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjl052
更新日期:2006-12-01 00:00:00
abstract:Background:Orthodontic diagnostic standards generally use the cranial base as a reference and rely on samples selected by orthodontists. Objective:The purpose of this study was to provide male and female standards for a novel non-radiographic approach for orthodontic diagnosis that utilizes 3D dentofacial photogrammet...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjw055
更新日期:2017-04-01 00:00:00
abstract::The aim of this study was to compare standard plaster models with their digital counterparts for the applicability of the Index of Complexity, Outcome, and Need (ICON). Generated study models of 30 randomly selected patients: 30 pre- (T(0)) and 30 post- (T(1)) treatment. Two examiners, calibrated in the ICON, scored t...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjn077
更新日期:2009-06-01 00:00:00
abstract::The objective of the present investigation was to determine the intrapulpal temperature changes and to compare the shear bond strength (SBS) of bondable buccal tubes bonded by high-intensity light sources. Ninety caries-free human first molar teeth extracted for periodontal reasons were used. For the temperature measu...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjn013
更新日期:2008-08-01 00:00:00
abstract::This study evaluated the effect of sandblasting foil mesh molar tube bases on the shear bond strength obtained when bonding to first molar teeth. Fifty-two recently extracted first molar teeth were etched with 35 per cent phosphoric acid gel for 30 seconds. Twenty-six sandblasted 'A' Company molar tube attachments and...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/21.3.311
更新日期:1999-06-01 00:00:00
abstract:SUMMARY:The aim of this study was to evaluate the effects of orthodontic treatment on systemic levels of the inflammatory markers, C-reactive protein (CRP), tumour necrosis factor-alpha (TNF-alpha), and interleukin-6 (IL-6). The study group comprised 11 girls and 6 boys (mean age 13.1 years) treated with fixed applianc...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjp108
更新日期:2010-08-01 00:00:00
abstract:Objective:To investigate effects of mandible advanced device (MAD) therapy for obstructive sleep apnoea-hypopnea syndrome (OSAHS) on the neuron apoptosis and acetylcholine esterase activity in frontal cortex. Materials and methods:Thirty male New Zealand white rabbits were randomly divided into three groups (n = 10 in...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjx060
更新日期:2018-05-25 00:00:00
abstract::The purpose of this laboratory study was to assess the potential cleaning efficacy of nine different toothbrushes around brackets in vitro. Standard and Mini Diamond brackets were fixed on coloured teeth in a special model, coated with white titanium oxide, brushed in a machine with different manual toothbrushes (thre...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjn070
更新日期:2009-02-01 00:00:00
abstract::Mandibular advancement splints (MASs) are used to advance the mandible forward in patients with sleep-disordered breathing. The conventional rigid MAS restricts the movement of the mandible, and this immobility sometimes produces discomfort, including temporomandibular disorders. A simple method for fabricating a mobi...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjp040
更新日期:2009-12-01 00:00:00