Abstract:
:Various investigations have mentioned the use of a bonded maxillary expansion appliance. It was postulated that a full coverage of the occlusal surfaces by acrylic would remove interferences during the lateral displacement of the two maxillary bones and would lessen the resistance to maxillary expansion. The first objective of this study was to compare two appliances, a bonded and a banded Minne expander using a continuous force of two pounds, which would produce a slow maxillary expansion. The second objective was to evaluate the ratio between the skeletal and dental response to slow maxillary expansion, and to compare these results to those obtained with a rapid maxillary expansion procedure. Each experimental group consisted of 5 patients, aged between 8 and 12 years wearing the two different appliances. Prior to treatment they were implanted according to the Björk technique. The slow expansion period lasted 7 to 15 weeks followed by a retention period of 12 weeks. Post-retention observations followed 12 weeks after the end of retention. No significant difference was found between banded and bonded appliances in regard to dental and skeletal expansion and relapse. The amount of skeletal versus dental movements equalled results obtained with rapid maxillary expansion. The relapse tendency appeared lower than with rapid maxillary expansion.
journal_name
Eur J Orthodjournal_title
European journal of orthodonticsauthors
Mossaz-Joëlson K,Mossaz CFdoi
10.1093/oxfordjournals.ejo.a035967subject
Has Abstractpub_date
1989-02-01 00:00:00pages
67-76issue
1eissn
0141-5387issn
1460-2210journal_volume
11pub_type
杂志文章abstract::The aim of this study was to review recent randomized clinical trials (RCTs) dealing with the effectiveness of various modalities of orthopaedic/orthodontic expansion of maxillary arches with crossbite and the associated 6 month post retention stability. The study selection criteria included RCTs involving subjects wi...
journal_title:European journal of orthodontics
pub_type: 杂志文章,评审
doi:10.1093/ejo/cjr140
更新日期:2013-02-01 00:00:00
abstract::The purpose of this study was to analyse the prevalence of ectopic eruption of maxillary first permanent molars in children with cleft lip and palate, and evaluate the influence of both local and genetic factors. Radiographs from 225 children, 125 girls and 100 boys, were studied. The prevalence in cleft children was ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/15.6.535
更新日期:1993-12-01 00:00:00
abstract::The long-term goal of this research is to define the dimensions of nasal airway adequacy in children. Nasal airway size and variables associated with growth were assessed in 138 healthy children aged 7-15 years. The pressure-flow technique (Warren, 1984) was used to calculate the smallest cross-sectional area of the n...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/13.4.311
更新日期:1991-08-01 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
abstract::In 138 successfully treated Class II division 1 patients (40 Activator and 98 Herbst) effective temporomandibular joint (TMJ) growth changes (a summation of condylar remodelling, glenoid fossa remodelling, and condylar position changes within the fossa), and their influence on the position of the chin and the rotation...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/24.6.627
更新日期:2002-12-01 00:00:00
abstract::The purpose of this study was to examine the mechanical behaviour of orthodontic delta retraction springs. Twelve titanium-molybdenum (0.016 × 0.022 inch) delta loops were studied. The springs were analysed by means of the finite element (FE) method and experimental tests using a platform transducer. Each spring was a...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjr062
更新日期:2013-08-01 00:00:00
abstract::The purpose of this study was to qualitatively and quantitatively assess the nickel, chromium, and ferrous levels in a population of 17 orthodontic patients undergoing treatment, compared with seven untreated individuals, employing a novel methodological approach and a new analytical technique. Salivary samples obtain...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/25.1.103
更新日期:2003-02-01 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: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:OBJECTIVE:To analyse cost-effectiveness of anchorage reinforcement with buccal miniscrews and with molar blocks. We hypothesized that anchorage with miniscrews is more cost-effective than anchorage with molar blocks. TRIAL DESIGN:A single-centre, two-arm parallel-group randomized controlled trial. METHODS:Adolescents...
journal_title:European journal of orthodontics
pub_type: 杂志文章,随机对照试验
doi:10.1093/ejo/cjy041
更新日期:2019-03-29 00:00:00
abstract::The purpose of this study was to evaluate the Denture Frame Analysis. This adjunctive cephalometric analysis of the lateral headfilm was introduced in Japan, but no data exist for the Caucasian population at present. One-hundred-and-six Caucasians were randomly selected and assigned to one of four groups, according to...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/20.5.579
更新日期:1998-10-01 00:00:00
abstract::The aim of this study was to identify the transverse growth pattern of the craniofacial skeleton and dentition from 7 to 15 years of age. The database for this longitudinal study comprised the postero-anterior (PA) cephalograms and dental casts at 7, 9, 11, 13 and 15 years of age of 18 untreated Class I subjects with ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/26.1.31
更新日期:2004-02-01 00:00:00
abstract::The purpose of this study was to perform a meta-analysis of articles to verify the mandibular changes produced by the Fränkel-2 (FR-2) appliance during the treatment of growing patients with Class II malocclusions when compared with untreated growing Class II subjects. The literature published from January 1966 to Jan...
journal_title:European journal of orthodontics
pub_type: 杂志文章,meta分析,评审
doi:10.1093/ejo/cjq033
更新日期:2011-02-01 00:00:00
abstract::Fifty-two patients with malocclusions underwent orthodontic treatment in combination with orthognathic surgery involving a Le Fort I and/or sagittal split osteotomy. Approximately 5 years after surgery, the patients were examined for signs and symptoms of temporomandibular disorders (TMD). The frequencies were found t...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/22.5.537
更新日期:2000-10-01 00:00:00
abstract::Shared decision making between children and parents is required in orthodontics. This study compared agreement among mothers, fathers, and children regarding the oral health-related quality of life (OHRQoL) of children. A sample of 71 child patients (41 girls and 30 boys) aged 12.6 years with an orthodontic treatment ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjl058
更新日期:2007-04-01 00:00:00
abstract::To compare force levels obtained from glass fibre-reinforced composite (FRC) archwires. Specifically, FRC wires were compared with polymer matrices having different dimethacrylate monomer compositions. FRC material (E-glass provided by Stick Tech Ltd, Turku, Finland) with continuous unidirectional glass fibres and fou...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjr128
更新日期:2013-02-01 00:00:00
abstract::The aims of the study were to identify craniofacial characteristics in patients with the rough hypoplastic amelogenesis imperfecta (AI) phenotype and to evaluate whether craniofacial variables are related to a mutation in either of the two genes associated with AI, enamelin (ENAM) and amelogenin (AMGX). Eight children...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjq089
更新日期:2011-06-01 00:00:00
abstract::Pre-treatment, end of treatment, and post-retention study models of 30 subjects with a Class II division 2 malocclusion were assessed, after a period of at least 3 years, in order to evaluate the long-term changes in occlusion, alignment, and arch dimensions. Molar relationship correction was found to be stable after ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/21.4.377
更新日期:1999-08-01 00:00:00
abstract:BACKGROUND:Low-frequency vibrations have been proposed as a means of accelerating tooth movement and reducing orthodontic treatment times. OBJECTIVE:To determine any differences in the accuracy of dental movement in patients treated with a low-frequency vibration aligner protocol and/or by reducing the aligner replace...
journal_title:European journal of orthodontics
pub_type: 杂志文章,随机对照试验
doi:10.1093/ejo/cjy076
更新日期:2019-08-08 00:00:00
abstract:BACKGROUND/OBJECTIVES:To assess intra- and inter-observer reproducibility of the evaluation of the Frӓnkel Manoeuvre (FM) on three-dimensional (3D) scans and to compare it to the assessment on two-dimensional (2D) pictures. MATERIALS/METHODS:This study included 44 individuals with a skeletal Class II malocclusion [9-1...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjz081
更新日期:2020-04-01 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::The purpose of this study was to propose a growth-based structural superimposition method for assessment of cervical vertebral fusion and evaluate variations and abnormalities of the upper cervical vertebrae. Standardized lateral cephalograms of 156 patients (69 males and 87 females, age range 6-20 years), representin...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjp049
更新日期:2010-02-01 00:00:00
abstract::The viscoelastic behaviour of prototype composite orthodontic archwires was evaluated using a bend stress relaxation test. Archwires having 10 different volume fractions of reinforcement were subjected to constant bending radii in a water bath at 37 degrees C for time periods of up to 90 days. The wires were subsequen...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/22.1.1
更新日期:2000-02-01 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::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::The purpose of this study was to investigate the effect of treatment of mandibular crowding with self-ligating and conventional brackets on dental arch variables. Fifty-six patients were selected from a pool of subjects satisfying the following inclusion criteria: non-extraction treatment in the mandibular or maxillar...
journal_title:European journal of orthodontics
pub_type: 临床试验,杂志文章
doi:10.1093/ejo/cjp123
更新日期:2010-06-01 00:00:00
abstract::The present review summarizes two decades of published and unpublished studies on normal and pathological development of sella turcica and pituitary gland in humans. The pathological conditions are studied in known genotype deviations, syndromes, and other malformations. The studies include histological analyses of hu...
journal_title:European journal of orthodontics
pub_type: 杂志文章,评审
doi:10.1093/ejo/cjs091
更新日期:2015-02-01 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::Differential scanning calorimetry (DSC) was used to determine the transition temperature ranges (TTR) of four types of super-elastic orthodontic nickel-titanium coil springs (Sentalloy). A knowledge of the TTR provides information on the temperature at which a NiTi wire or spring can assume superelastic properties and...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/21.5.497
更新日期:1999-10-01 00:00:00
abstract::The purpose of this study was to assess quantitatively the roughness of the enamel surface following debonding using two resin removal methods. The enamel surface of 30 premolar crowns was covered with black tape with a 3 mm window on the middle buccal third to standardize the area of analysis. The initial enamel surf...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/26.3.333
更新日期:2004-06-01 00:00:00