Abstract：
:This radiographic study analysed the changes that occurred in the airway and surrounding structures when subjects with sleep disordered breathing moved from the upright to the supine position. Radiographs of 100 dentate, Caucasian males were examined. Fifty individuals were non-apnoeic snorers and in 50 a diagnosis of obstructive sleep apnoea (OSA) had been confirmed by polysomnography. Radiographs were traced and digitized and comparisons were made of the behaviour of the oropharynx, soft palate, tongue, and hyoid between the two groups. When moving from the upright to the supine position, both OSA and snoring subjects showed a similar pattern of change. The antero-posterior dimensions of the oropharyngeal airway decreased highly significantly (P < 0.001) at all levels, with a concomitant reduction in cross-sectional area (P < 0.001). The narrowing was most severe behind the soft palate, where the minimum airway reduced by approximately 40 per cent. Behind the tongue, a 20 per cent decrease was seen. The soft palate showed small but significant increases in area, whilst the tongue altered in shape but not in its overall cross-sectional area. In non-apnoeic snorers only, tongue proportion increased (P < 0.05). At the same time, the hyoid dropped and moved anteriorly, maintaining a constant relationship with the lower border of the mandible. There were no differences between the non-apnoeic snorers and the OSA subjects in any of the postural changes recorded.
journal_name
Eur J Orthodjournal_title
European journal of orthodonticsauthors
Battagel JM,Johal A,Smith AM,Kotecha Bdoi
10.1093/ejo/24.3.263keywords:
subject
Has Abstractpub_date
2002-06-01 00:00:00pages
263-76issue
3eissn
0141-5387issn
1460-2210journal_volume
24pub_type
杂志文章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：:This study investigated the changes in the initial centres of rotation (Crot) of the upper six anterior teeth in response to a horizontal load. Six upper anterior teeth were extracted, splinted as a unit, and embedded in dental stone after the roots were uniformly coated with silicone. An aluminium fixture was bonded ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjl023
更新日期：2006-10-01 00:00:00
abstract：:The aim of this investigation was to evaluate the effects of different tooth types on the shear bond strength (SBS) of two orthodontic resin adhesive systems in vitro. Two hundred extracted sound human teeth were used in the study. Ten teeth of each tooth type were the mounted in acrylic resin leaving the buccal surfa...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjn006
更新日期：2008-08-01 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 effects of a transpalatal arch for the symmetrical derotation of rotated first molars were evaluated in 50 children, 8-13 years of age. The positions of the molars were compared with those in 34 individuals, aged 12-18 years, with normal occlusion. Prefabricated (GAC) stainless steel arches were used for 60-198 da...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/18.3.257
更新日期：1996-06-01 00:00:00
abstract：:A clinical trial was undertaken to assess the value of incorporating fluoride released from a commercially available bonding adhesive (Rely-a-Bond) to determine the extent of any protection provided against enamel decalcification. Fifty patients undergoing fixed appliance therapy were included in the trial. Contralate...
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/19.4.391
更新日期：1997-08-01 00:00:00
abstract：:Tissue shortage complicates the surgery of cleft palate (CP) anomalies. The healing of defects on the palate impairs growth of the dento-maxillary complex due to scar tissue formation. Implantation of grafts into the wound area might reduce this adverse effect of surgery. The aim of this study was to evaluate a cultur...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjm082
更新日期：2008-02-01 00:00:00
abstract：:The aim of this investigation was to determine the pattern of repair of root resorption regarding the location and type of tissue in adolescents after application of a well-controlled force magnitude. In 16 adolescents (mean age 13.8 years), the maxillary first premolars were buccally moved with a weekly reactivated f...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/20.6.727
更新日期：1998-12-01 00:00:00
abstract：:The aim of this study was to investigate the in vivo bonding of orthodontic brackets using two resin-modified glass poly(alkenoate) cements and to compare them with a conventional light-cured diacrylate bonding agent. Twenty consecutive patients attending for bond up appointments took part in this randomized cross-mou...
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/23.4.403
更新日期：2001-08-01 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：:This paper describes and illustrates an innovative versatile skull-holding device for experimental research in cephalometrics. Repositioning of the skulls was evaluated and found to be highly reproducible. ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/18.2.193
更新日期：1996-04-01 00:00:00
abstract：:A logical basis for the sequence of wires chosen during orthodontic treatment with fixed appliances is presented. This utilizes a new more realistic model for the radial deflection of a segment of the archwire in which the wire is restrained by the ligatures on the misaligned tooth, contacts the inner edges of the bra...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/14.3.240
更新日期：1992-06-01 00:00:00
abstract：:This prospective study investigated the skeletal, dental, and soft-tissue effects of a mini maxillary protractor appliance in class III subjects with maxillary retrusion and mandibular protrusion and compared these changes with those of untreated, well matched control sample with normal occlusions. Twenty patients wit...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjt006
更新日期：2014-02-01 00:00:00
abstract：BACKGROUND:This study aimed to assess the reporting of the methodological quality of search strategies undertaken in orthodontic quantitative systematic reviews (SRs) and hence their reproducibility. MATERIALS AND METHODS:A search of a single electronic database (Medline via PubMed) was undertaken to identify interven...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjaa078
更新日期：2020-12-26 00:00:00
abstract：:Cervical column morphology was examined in 41 adult patients with a skeletal deep bite, 23 females aged 22-42 years (mean 27.9) and 18 males aged 21-44 years (mean 30.8) and compared with the cervical column morphology in an adult control group consisting of 21 subjects, 15 females, aged 23-40 years (mean 29.2 years) ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjm043
更新日期：2007-10-01 00:00:00
abstract：:Laser scanning can be used to visualize the face in three dimensions. These scans can then be processed to enable assessment of facial changes. The aim of this single-centre, prospective, longitudinal, cohort study was to investigate whether four different visualization methods correctly represented facial changes occ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjl037
更新日期：2007-02-01 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：:The search for an ideal enamel surface finishing method following bracket debonding has met with equivocal response. In this study, four other methods were assessed to determine their effectiveness against the slow speed tungsten carbide bur which is regarded as the established method of removing residual composite. O...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/17.2.121
更新日期：1995-04-01 00:00:00
abstract：:Optical surface scanning technologies produce dense three-dimensional (3D) data sets, which allow detailed analysis of surface morphology. This paper describes a method of analysing change in facial shape independently of change in size. The 3D data from three male subjects from the age of 6-21 years were recorded usi...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/23.3.275
更新日期：2001-06-01 00:00:00
abstract：:The purpose of this retrospective study was to evaluate the treatment effects of the variable anchorage straightwire technique (VAST) in Angle Class II patients using Ricketts' growth prediction analysis. The subjects belonged to two groups: a control, consisting of 30 untreated Class II Swedish individuals (20 girls,...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjn038
更新日期：2009-02-01 00:00:00
abstract：:Various studies have reported a significant reduction in tensile bond strength of brackets when bonding is carried out immediately after bleaching. The purpose of this investigation was to determine the effect of an antioxidant agent on the tensile bond strength values of metal brackets bonded with composite resin to ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cji044
更新日期：2005-10-01 00:00:00
abstract：:It has been suggested that subjects with increased vertical craniofacial dimensions have relatively oblique orientated jaw muscles with a reduced possibility to restrain the vertical component of craniofacial growth. To test this hypothesis, relationships were investigated between the spatial orientation of the jaw mu...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/19.3.313
更新日期：1997-06-01 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：: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：:The prevalence of signs and symptoms attributed to craniomandibular disorders (CMD) was established in an orthodontically treated sample. The effect of orthodontic therapy upon this prevalence was studied by monitoring three groups of patients whose treatment procedures were different. The first group was treated with...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/14.1.16
更新日期：1992-02-01 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：: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：OBJECTIVES:During orthodontic arch expansion, the teeth are displaced against the perioral soft tissues. This can affect the equilibrium of forces that are thought to act on teeth, with consequent implications for long-term stability. The aim of this study was to investigate the effect of incremental lower lip advancem...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjt094
更新日期：2014-12-01 00:00:00
abstract：:The aim of this study was to investigate the relationship between Turkish university students' awareness of malocclusion, their satisfaction with their personal dental appearance, and the severity of their occlusal irregularities. The sample consisted of 841 randomly selected university students, 522 (62.1 per cent) m...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjn083
更新日期：2009-04-01 00:00:00
abstract：Introduction:Orthodontic miniscrews are an increasingly popular choice to achieve absolute anchorage. The temporary use of miniscrews and their recent introduction have limited the debate over the biological aspect of the materials to that of the surface that permeates the field of dental implants. The aim of the prese...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjw069
更新日期：2017-10-01 00:00:00
