Abstract:
:The aim of this in vitro study was to investigate both shear bond strength (SBS) by shear testing of indirectly bonded brackets, and the accuracy of a new transfer method, the Aptus bonding device (ABD). For comparison, the SBS of directly bonded brackets in two experimental arrangements was also measured. The precision of the positioning of the indirect bracket transfer was assessed by photographic superimposition and three-dimensional (3D) measurement of the bracket positions on the working and plaster models using a 3D laser scan. Statistical analysis was carried out by means of descriptive and explorative data using the SPSS program. To compare groups, a one-factor analysis of variance and post hoc tests (Tukey-HSD) were used. The level of significance was set at P < 0.05. SBS using indirect and direct bonding, with the same experimental arrangement and the same adhesives (Concise and Transbond), showed no significant differences. For direct bonding, using only one adhesive (Transbond), lower values were observed, but they were only statistically significant for the premolar teeth. The clinically required minimum bond strength of 6 MPa was achieved in all groups. Superimposition of the photographs of the indirectly bonded upper labial segment brackets showed no deviations. The results of the 3D measurement of the positions of the brackets on the working and plaster models only yielded small deviations (0.15 mm along the X-axis in the centre, 0.17 mm along the Y-axis, and 0.19 mm along the Z-axis). The ABD is a useful adjunct to bond placement and does not compromise bond strength.
journal_name
Eur J Orthodjournal_title
European journal of orthodonticsauthors
Wendl B,Droschl H,Muchitsch Pdoi
10.1093/ejo/cjm094subject
Has Abstractpub_date
2008-02-01 00:00:00pages
100-7issue
1eissn
0141-5387issn
1460-2210pii
30/1/100journal_volume
30pub_type
杂志文章abstract::Katz's quantitative modification of Angle's occlusion classification has been found to have a high intra- and inter-examiner agreement among orthodontists. In the present study an attempt was made to introduce a 'combined' system comprising Katz's modification and overjet/overbite millimetric measurements in order to ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/22.2.169
更新日期:2000-04-01 00:00:00
abstract::The purpose of the present investigation was to consider possible aetiological aspects of mandibular tooth agenesis by comparing the pattern of mandibular molar and premolar agenesis with radiological evidence of the mandibular canal. Orthopantomograms from 33 children affected by agenesis of at least four premolar an...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/16.5.371
更新日期:1994-10-01 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::The aim of this investigation was to examine the fluoride uptake by enamel after application of glass ionomer cement for orthodontic band cementation compared with zinc phosphate cement. The study was conducted on 21 children whose mean age was 14 years. All the children were reared in the Middle Anatolian cities wher...
journal_title:European journal of orthodontics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/ejo/18.1.81
更新日期:1996-02-01 00:00:00
abstract:SUMMARY:The aim of this study was to measure lingual volume and to correlate it with and predict it from the area of the radiographic shadow of the tongue as well as with demographic and biometric characteristics. In 70 healthy subjects (35 males and 35 females) aged between 20 and 37 years, tongue volume was determine...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjp105
更新日期:2010-08-01 00:00:00
abstract:OBJECTIVE:The aim of this trial was to test whether the use of a smartphone application (app) connected to a toothbrush improves the oral hygiene compliance of adolescent orthodontic patients. DESIGN:The study was designed as a multicentre, randomized, controlled clinical trial. SETTING:Two academic hospitals. ETHIC...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjz105
更新日期:2020-02-01 00:00:00
abstract:Aim:The aim of this study was to describe the longitudinal changes in facial morphology, dental arch alterations and oral functional capacities that occur in growing patients with Duchenne muscular dystrophy (DMD) in order to identify the effects of the progression of the disease. Subjects and Methods:Twelve DMD patie...
journal_title:European journal of orthodontics
pub_type: 杂志文章,多中心研究
doi:10.1093/ejo/cjx038
更新日期:2018-04-06 00:00:00
abstract::Orthodontic bonding with glass ionomer cement is comparatively new. The purpose of this article is to review the current literature covering both in vitro and in vivo studies of various glass ionomer cements that have been used for orthodontic bonding. The review indicates that there is little support in the literatur...
journal_title:European journal of orthodontics
pub_type: 杂志文章,评审
doi:10.1093/ejo/18.4.385
更新日期:1996-08-01 00:00:00
abstract::The aim of this study was to investigate if debonding microspheres (DM) could enhance electrothermal orthodontic debonding, and specifically to evaluate if the addition of DM, in varying concentrations to the orthodontic adhesive process, will affect bond strength. Bovine teeth (n=8) were mounted in acrylic using a si...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjq091
更新日期:2011-08-01 00:00:00
abstract::The purpose of this study was to compare the effect of overjet and overbite correction in non-extraction and extraction therapy in a sample of Class II malocclusions treated with the Edgewise appliance. The subjects were 20 children treated without extraction and 20 children treated with extraction of the four first p...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/oxfordjournals.ejo.a035984
更新日期:1989-05-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the effects of premaxillary advancement with distraction osteogenesis (DO) on the skeletal, dental, and soft tissues. MATERIALS AND METHODS:A total of 21 cases with Angle class I molar relationship and negative overjet or edge-to-edge incisor relationship were included....
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjt056
更新日期:2014-06-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the cephalometric outcome of bone-anchored maxillary protraction (BAMP) in individuals with unilateral complete cleft lip and palate (UCLP). MATERIAL AND METHODS:The experimental group (EG) comprised 23 individuals (17 males and 6 females) with UCLP and a mean age of 11...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjz005
更新日期:2019-09-21 00:00:00
abstract::Premature and low birth weight infants often require neonatal oral intubation for resuscitation and to relieve respiratory distress. The endotracheal tube exerts pressure on the developing palate, which can result in palatal groove formation, a high-arched palate, and palatal asymmetry. The purpose of this investigati...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/21.6.703
更新日期:1999-12-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:High-angle Class II malocclusion is considered challenging to treat to a stable result and, although studies report treatment outcome in terms of morphology, patient satisfaction has not been addressed. The objectives of the present study were to examine patients' motives for treatment and sat...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjaa038
更新日期:2020-06-20 00:00:00
abstract::To study the effects of transforming growth factor beta 2 (TGF-beta 2) on bone resorption, cultures of 17-day-old foetal mouse metatarsal long bones were used. The long bone rudiments were cultured for 5 days in medium supplemented with 10% rat serum. The effects of TGF-beta 2 were studied at concentrations of 1, 4, a...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/16.2.130
更新日期:1994-04-01 00:00:00
abstract::The craniofacial features of 49 Japanese and 75 British Caucasian girls with Class II division 1 malocclusions were evaluated from lateral cephalometric radiographs, and the morphological differences between both races were examined. The subjects' ages ranged from 11 years 1 month to 12 years 11 months. The mean value...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/24.1.61
更新日期:2002-02-01 00:00:00
abstract:AIMS:To establish whether adolescent orthodontic patients with hypodontia have a preference between the aesthetic outcomes of two treatment strategies for lateral incisor agenesis. MATERIALS/METHODS:Standardized photographs of pre-orthodontic patients with missing lateral incisors were manipulated to produce images th...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cju021
更新日期:2015-04-01 00:00:00
abstract::The aim of this study was to explore the complexities in constructing league tables purporting to measure orthodontic clinical outcomes. Eighteen orthodontists were invited to participate in a cost-effectiveness study. Each orthodontist was asked to provide information on 100 consecutively treated patients. The Index ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjn036
更新日期:2008-12-01 00:00:00
abstract::The purpose of this study was to investigate cephalometrically, the effects of a functional appliance-headgear combination, the Elastic Bite-block (EBB). Of 50 Class II division 1 subjects who participated in this study, 30 made up the treatment group and 20 the control group. All of the selected cases exhibited mandi...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/17.5.375
更新日期:1995-10-01 00:00:00
abstract::Deviations in the growth of the mandibular condyle can affect both the functional occlusion and the aesthetic appearance of the face. The reasons for these growth deviations are numerous and often entail complex sequences of malfunction at the cellular level. The aim of this review is to summarize recent progress in t...
journal_title:European journal of orthodontics
pub_type: 杂志文章,评审
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更新日期:2009-02-01 00:00:00
abstract::The aim of this investigation was to study symptoms of temporomandibular disorders (TMD) and headaches longitudinally in girls with Class II malocclusions receiving orthodontic treatment in comparison with subjects with untreated Class II malocclusions and girls with normal occlusion, and to evaluate the need and dema...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/22.3.283
更新日期:2000-06-01 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::This study investigated whether there were differences between the debond stress and adhesive remnant index (ARI) of an adhesive cured with three different orthodontic light sources. Sixty sound premolar teeth were divided into three groups of 20. A standard pre-adjusted edgewise premolar bracket (Victory Series) was ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cji076
更新日期:2006-02-01 00:00:00
abstract::In this study, botulinum neurotoxin type A (BoTx/A) was injected into the temporalis and masseter muscles of growing rats to induce masticatory hypoactivity. Sixty, 30-day-old, male Long-Evans rats were randomly divided into four groups. BoTx/A was bilaterally injected in the masseter muscles in group I, in the tempor...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjq029
更新日期:2011-04-01 00:00:00
abstract::An analysis of the facial soft tissues is presented which permits aesthetic considerations of facial harmony and balance to be measured, and assessed quantitatively. The assessment is carried out in a practical and straight-forward manner, avoiding the measurement of angles. The visually determined Aesthetic Horizonta...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/13.5.343
更新日期:1991-10-01 00:00:00
abstract::This retrospective, cephalometric study was undertaken in an attempt to identify the aetiological features which may be associated with a Class III malocclusion in the growing child. Four-hundred-and-ninety-five lateral cephalometric radiographs (210 control and 285 Class III films) formed the basis of the study. All ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/15.5.347
更新日期:1993-10-01 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
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更新日期:2006-12-01 00:00:00
abstract::It is well known that elastomers exhibit viscoelasticity and as such have their mechanical properties modified by temperature. Nickel titanium archwires are also affected by temperature and have been modified with specific temperature related properties for clinical use. What is less well known is the effect that othe...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/20.2.169
更新日期:1998-04-01 00:00:00
abstract::The purpose of this study was to describe condylar growth and mandibular remodelling changes associated with bionator therapy. Twenty-five patients (15 males and 10 females) between 6.9 and 11.2 years of age with Class II division 1 malocclusions were randomly allocated to either control (n = 11) or treatment (n = 14;...
journal_title:European journal of orthodontics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/ejo/26.5.515
更新日期:2004-10-01 00:00:00
abstract::Reduced nasal airflow can be the result of enlarged adenoids, hypertrophic turbinates, severely deviated nasal septum, or even narrow nasal cavities. The question of whether the width of the nasal cavity may influence certain facial dimensions examined on the postero-anterior cephalometric X-ray was evaluated through ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/13.5.410
更新日期:1991-10-01 00:00:00