Abstract：
:The aims of this study were to evaluate the frequency of errors in panoramic radiographs in young orthodontic patients, to register pathologic and abnormal conditions, and to compare these findings with the patient's record. A total of 1287 panoramic radiographs of children and adolescents (530 boys and 757 girls; mean age 14.2 years) were analyzed. The radiographs were obtained of patients referred for orthodontic treatment during a 1 year period. Four observers evaluated the radiographs for 10 common errors, pathologies, and/or anomalies. Cohen's kappa was used for the calculations of inter- and intraobserver variability. Five of the errors were divided into clinically relevant or not clinically relevant errors, i.e. errors influencing diagnosis. Only those pathological findings with a possible influence on orthodontic treatment were compared with the patient's record. Of the 1287 radiographs, 96 per cent had errors. The number of errors in each image varied between 1 and 5, and in 24 per cent of these images, the errors could be of importance for clinical decision making. The most common error was that the tongue was not in contact with the hard palate. Pathologies or anomalies were found in 558 patients and a total of 1221 findings were recorded. Findings of possible relevance for orthodontic treatment were 63, and 12 of those were registered in the patient records. Pathological findings outside the dental arches were low and could be an argument for minimizing the radiation field.
journal_name
Eur J Orthodjournal_title
European journal of orthodonticsauthors
Granlund CM,Lith A,Molander B,Gröndahl K,Hansen K,Ekestubbe Adoi
10.1093/ejo/cjr035subject
Has Abstractpub_date
2012-08-01 00:00:00pages
452-7issue
4eissn
0141-5387issn
1460-2210pii
cjr035journal_volume
34pub_type
杂志文章abstract：:Recent studies revealed that the initial root resorption occurred in the peripheries of the necrotic periodontal ligament (PDL) and was performed by mono-nucleated non-clast macrophage- and fibroblast-like cells (Brudvik and Rygh, 1993a, b). The aim of the present transmission electron microscopic (TEM) investigation ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/16.4.265
更新日期：1994-08-01 00:00:00
abstract：:It is well known that mastication has a significant influence on mandibular growth and development, but the mechanism behind this effect has not yet been clarified. Furthermore, no studies have examined the effects of changes in mastication on the three-dimensional (3D) morphometry of the mandible. The aim of the pres...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjp060
更新日期：2010-02-01 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：: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：: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：: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：OBJECTIVES:The objective of the study was to evaluate the impact of temporomandibular joint (TMJ) arthritis on the functional disability and quality of life in patients affected by juvenile idiopathic arthritis (JIA). MATERIALS AND METHODS:Sixty-two consecutive patients with JIA with or without TMJ arthritis and 35 he...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjy034
更新日期：2019-03-29 00:00:00
abstract：:The purpose of this study was to investigate the effects of rapid maxillary expansion (RME) and semi-rapid maxillary expansion (SRME) in the mixed dentition period. The SRME group consisted of 18 patients (11 girls and 7 boys) with a mean age of 8.63 +/- 1.09 years and the RME group 17 patients (11 girls and 6 boys) w...
journal_title：European journal of orthodontics
pub_type： 杂志文章,随机对照试验
doi：10.1093/ejo/cjp057
更新日期：2010-02-01 00:00:00
abstract：:P561T heterozygous missense mutation in the growth hormone receptor (GHR) is a candidate genetic polymorphism (single-nucleotide polymorphism) for human mandibular growth. The purpose of this study was to assess whether this mutation affects mandibular growth during early childhood. The difference in mandibular growth...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjp017
更新日期：2009-10-01 00:00:00
abstract：Objective and design:Our aim was to evaluate the effect of mandible advancement splint (MAS) in mild, moderate, and severe obstructive sleep apnea (OSA). We also determined, if and in which OSA-groups the adequate forward movement in MAS could be quantified without sleep registration for different OSA levels. A retrosp...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjw068
更新日期：2017-10-01 00:00:00
abstract：:It was the aim of the present study to cast light on the role of the mandible in relation to head posture and airway space by evaluating patients before and after surgical correction of mandibular prognathism. The material comprised standardized profile cephalograms of 52 patients with mandibular prognathism. All pati...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/oxfordjournals.ejo.a035962
更新日期：1989-02-01 00:00:00
abstract：:In order to study the prevalence of mandibular dysfunction in orthodontically treated prognathic patients after retention, 60 randomly selected patients were examined clinically. The functional status of the patients was evaluated using the anamnestic, clinical dysfunction index, and the index for occlusal status intr...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/13.2.124
更新日期：1991-04-01 00:00:00
abstract：AIM:To assess the prevalence of adjustment for confounding within statistical analysis and matching at the design stage in leading orthodontic journals and to explore potential associations between accounting for confounding and publication characteristics. MATERIALS AND METHODS:Twenty-four issues of four leading orth...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjv004
更新日期：2016-02-01 00:00:00
abstract：Objective:The aim of this in vitro study was to evaluate the progressive development of surface microdamage produced following the insertion of orthodontic miniscrews (OMs) into 1.5 mm thick porcine tibia bone using maximum insertion torque values of 12 Ncm, 18 Ncm, and 24 Ncm. Methods:Aarhus OMs (diameter 1.5 mm; len...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjx026
更新日期：2018-01-23 00:00:00
abstract：:Two-hundred-and-thirty-eight subjects in three different age-groups (7, 11, and 15 years) were followed over a period of 4-5 years in respect of morphological malocclusions, and signs and symptoms of functional disturbances. About half of the 7-year-olds had at least one of the morphological malocclusions registered w...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/12.4.399
更新日期：1990-11-01 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 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：Background:Caries is an undesirable side-effect of treatment with fixed orthodontic appliances. Therefore, it is crucial to understand how orthodontic treatment and different fluoride regimens affect caries risk and individual risk factors. Objective:To evaluate the effects of orthodontic treatment and different fluor...
journal_title：European journal of orthodontics
pub_type： 杂志文章,随机对照试验
doi：10.1093/ejo/cjy025
更新日期：2019-01-23 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：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：:This study aimed to examine the skeletal, dental, and soft tissue effects of the implant-supported pendulum (ISP) and the zygoma anchorage system (ZAS) used for the distalization of maxillary posterior teeth. Among 30 patients showing Angle class II malocclusion, 15 patients with a mean age of 14.3±1.6 years and treat...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjs059
更新日期：2013-08-01 00:00:00
abstract：Objective:To assess the dental, skeletal, and profile changes after functional appliances and subsequent fixed appliances treatment in order to quantify their effect and evaluate the influence of initial incisal inclination and growth pattern. Materials and methods:A retrospective cephalometric analysis was performed ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjw064
更新日期：2017-06-01 00:00:00
abstract：:The aims of the study were to analyse the records of 26 subjects (18 females, eight males) with maxillary canine-first premolar transposition (Mx.C.P1) together with 160 subjects with a palatally displaced canine (PDC) to determine the pattern of tooth agenesis in these cases and to compare them with similar samples r...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cji040
更新日期：2005-10-01 00:00:00
abstract：:Non-syndromic permanent canine agenesis, or combined with agenesis, or developmental absence of other tooth types, has occasionally been described in the literature, but isolated forms are rarely observed. The purpose of the present retrospective radiographic study was to provide data on the prevalence and distributio...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjp018
更新日期：2009-08-01 00:00:00
abstract：OBJECTIVE:This study investigated the expression of extracellular matrix metalloproteinase inducer (EMMPRIN) in the compression area during orthodontic relapse in rat molars. MATERIALS AND METHODS:Thirty Wistar rats (6 weeks old) underwent orthodontic tooth movement (OTM) of the left first maxillary molar for 21 days,...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjz046
更新日期：2020-06-23 00:00:00
abstract：:Fifteen patients, eight males and seven females with a mean age of 13.32 years, were selected for unilateral molar distalization. Dentally, all presented with a unilateral Class II molar relationship. The subjects were all in the permanent dentition with second molars erupted and with a well aligned lower dental arch....
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/23.5.507
更新日期：2001-10-01 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：: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：:This study provides sex specific reference data for the incremental growth of the mandibular condyle. The results pertain to a mixed-longitudinal sample of 113 males and 108 females followed annually between 6 and 16 years of age (total of 1647 observations). Growth of condylion was evaluated using naturally stable ma...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/21.2.167
更新日期：1999-04-01 00:00:00
abstract：:This investigation was designed to repeat classic studies into the associations between head posture and growth as a single unified study using up-dated methods for gathering and analysing the data. The material comprised the cephalometric radiographs of 59 children (34 males and 25 females) recorded in natural head p...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjq131
更新日期：2012-08-01 00:00:00
