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 computer-assisted method for the description and analysis of maxillary and mandibular arch form in a sample of normal occlusion subjects, and to evaluate the long-term stability in dental arch form from the age of 13-31 years. The study was carried out on 30 subjects of Scandinavian origin with normal occlusion, recorded at a mean age of 13.6 years and at follow-up at 31.1 years. Arch form analysis was based on a standardized photographic procedure, digitization of morphological landmarks, and a computerized form analysis in which arch form was described using eccentricity values of conics. No specific arch form could be found to represent the sample. Age changes occurred in arch form, although with large individual variations. For the mandible, a significant change to a more rounded arch form with age was found, which in males was accompanied by a significant increase in inter-molar distance and reduction in arch depth. There was also a significant correlation between change in mandibular arch form and increased irregularity of the lower incisors. These findings of lack of stability in arch form in normal occlusion subjects, when passing from adolescence into adulthood, further question the possibility of achieving stability post-orthodontically.
journal_name
Eur J Orthodjournal_title
European journal of orthodonticsauthors
Henrikson J,Persson M,Thilander Bdoi
10.1093/ejo/23.1.51keywords:
subject
Has Abstractpub_date
2001-02-01 00:00:00pages
51-61issue
1eissn
0141-5387issn
1460-2210journal_volume
23pub_type
杂志文章abstract：:The purpose of this study was to determine whether quantitative light-induced fluorescence (QLF) could detect very early demineralization and remineralization longitudinally adjacent to orthodontic components in an in vitro model. Extracted human premolars (n = 13) were sectioned sagittally to produce two equal halves...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/25.3.217
更新日期：2003-06-01 00:00:00
abstract：OBJECTIVES:This study compared the stability of tapered miniscrews with cylindrical miniscrews. MATERIALS/METHODS:One hundred and five tapered and 122 cylindrical self-drilling miniscrews were placed into the maxillary and mandibular buccal alveolar areas of 132 patients (43 males and 89 females). The insertion torque...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjt092
更新日期：2014-10-01 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 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 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
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更新日期：1996-02-01 00:00:00
abstract：BACKGROUND:The Scandcleft trial is a randomized controlled trial that includes children with unilateral cleft lip and palate where registrations are standardized and therefore provides the opportunity to describe craniofacial characteristics in a very large sample of patients. OBJECTIVES:The aim of this study was to d...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjaa060
更新日期：2020-12-24 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：: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
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journal_title：European journal of orthodontics
pub_type： 杂志文章
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更新日期：2007-12-01 00:00:00
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journal_title：European journal of orthodontics
pub_type： 杂志文章
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更新日期：2013-12-01 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：: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：:This prospective study analysed the lateral cephalometric radiographs of 59 dentate, white, Caucasian males. Thirty-five patients with proven obstructive sleep apnoea (OSA) formed the experimental group, while 24 subjects with no history of respiratory disease acted as controls. Radiographs were traced and digitized, ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/18.6.557
更新日期：1996-12-01 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：: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 obj...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/oxfordjournals.ejo.a035967
更新日期：1989-02-01 00:00:00
abstract：:The Beni Solow award for the best article published in the European Journal of Orthodontics in 2014 has been won by: Karoline Dreesen, Steven Swinnen, Koenraad Devriendt, and Carine Carels from Departments of Orthodontics and Human Genetics, Katholieke Universiteit Leuven, Belgium and Department of Orthodontics and Cr...
journal_title：European journal of orthodontics
pub_type： 社论,历史文章
doi：10.1093/ejo/cjv043
更新日期：2015-08-01 00:00:00
abstract：:The aim of the present investigation was to examine position, occlusion, and interproximal contacts of 139 transplanted third molars in 136 patients (94 females, 42 males) with a mean age of 17.6 years at the time of transplantation. Ninety-two teeth were placed directly into favourable positions and left to erupt spo...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjn084
更新日期：2009-04-01 00:00:00
abstract：:Metabolism by peptidases plays an important role in modulating the levels of biologically-active neuropeptides, while that of substance P (SP), a component of gingival crevicular fluid (GCF), may potentiate the inflammatory process in orthodontic tooth movement. The aim of this study was two-fold: (1) to investigate G...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cji100
更新日期：2006-06-01 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
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journal_title：European journal of orthodontics
pub_type： 杂志文章
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更新日期：2012-06-01 00:00:00
abstract：OBJECTIVES:Assess facial asymmetry in subjects with unilateral cleft lip (UCL), unilateral cleft lip and alveolus (UCLA), and unilateral cleft lip, alveolus, and palate (UCLP), and to evaluate which area of the face is most asymmetrical. METHODS:Standardized three-dimensional facial images of 58 patients (9 UCL, 21 UC...
journal_title：European journal of orthodontics
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更新日期：2015-12-01 00:00:00
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journal_title：European journal of orthodontics
pub_type： 杂志文章
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更新日期：2003-06-01 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 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
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更新日期：2011-12-01 00:00:00
abstract：:This retrospective study examined the occurrence of congenitally missing permanent teeth and the need for dental treatment in the Regensburg University Medical Centre of Eastern Bavaria. Using a dental administration software tool, a total of 1442 patients who presented for orthodontic treatment between 1994 and 2006 ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjq021
更新日期：2011-02-01 00:00:00
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journal_title：European journal of orthodontics
pub_type： 杂志文章,随机对照试验
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更新日期：2014-08-01 00:00:00
abstract：:The aim of this investigation was to compare Swedish and immigrant groups of 12- and 13-year-old boys and girls with respect to: (1) self-perceived need for and attitude to orthodontic treatment, (2) attitude to own teeth and general appearance, (3) behaviour pattern and psychosocial functioning, and (4) self-perceive...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjh070
更新日期：2005-04-01 00:00:00
abstract：:The purpose of this study was to examine the natural growth changes which occur between 22 and 33 years of age. The material consisted of two series of cephalograms of 74 females and 90 males with approximately 11 years between the two series. None of the subjects had orthodontic retainers when the first exposure was ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/17.6.525
更新日期：1995-12-01 00:00:00
abstract：:The aim of the present study was to develop an index specifically for the measurement of treatment complexity. Input factors were directly related to complexity, and the output was a score measuring the degree of treatment complexity. The sample comprised 120 sets of dental casts, 30 for each of the four main malocclu...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjl080
更新日期：2007-04-01 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
