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 force of 50 cN (approximately 50 g) for 6 weeks following which the appliance was made passive for 2, 3, 6, and 7 weeks. The subjects were divided into two groups of eight individuals for which the retention periods were 2 and 6 weeks (Group I), or 3 and 7 weeks (Group II), implying intra-individual differences of 4 weeks. Reparative cementum in the resorption cavities was seen in all test teeth, significantly more often after 6 and 7 weeks of retention (82 per cent) compared with 2 and 3 weeks (35 and 44 per cent, respectively). The reparative process appeared to commence in the bottom of the resorption cavity, frequently covered by a thin layer of acellular cementum. However, most of the reparative cementum was of the cellular type and always covered the initially formed acellular cementum. There were great individual variations regarding the occurrence of healing of orthodontically-induced root resorption.
journal_name
Eur J Orthodjournal_title
European journal of orthodonticsauthors
Owman-Moll P,Kurol Jdoi
10.1093/ejo/20.6.727subject
Has Abstractpub_date
1998-12-01 00:00:00pages
727-32issue
6eissn
0141-5387issn
1460-2210journal_volume
20pub_type
杂志文章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 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
doi：10.1093/ejo/cjl052
更新日期：2006-12-01 00:00:00
abstract：Background/objective:The aim of this study was to evaluate the efficacy of tooth alignment with conventional and self-ligating labial and lingual orthodontic bracket systems. Materials/methods:We tested labial brackets (0.022″ slot size) and lingual brackets (0.018″ slot size). The labial brackets were: (i) regular tw...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjy005
更新日期：2018-11-30 00:00:00
abstract：Background/objectives:Maxillary tooth distal movement is a treatment option for Class II malocclusion. This prospective clinical study (split-mouth design) was aimed to compare chondroitin sulphate (CS) levels in gingival crevicular fluid (GCF), the rates of tooth movement, and patient pain and discomfort during segmen...
journal_title：European journal of orthodontics
pub_type： 杂志文章,随机对照试验
doi：10.1093/ejo/cjx092
更新日期：2018-09-28 00:00:00
abstract：:The purpose of this study was to clarify the contributing factors and their influences on temporomandibular joint internal derangement (TMJ ID) symptoms in subjects with mandibular asymmetry. Postero-anterior (PA) cephalograms of 187 pre-orthodontic treatment subjects (aged 18-45 years, mean 23.9 years) were used to i...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cji073
更新日期：2006-02-01 00:00:00
abstract：:The aim of this study was to assess the prevalence of malocclusion and its association with socio-demographic characteristics, caries experience, and level of oral hygiene in 12- to 14-year-old schoolchildren residing in two socio-economically different districts of Tanzania. A total of 1601 children (mean age 13 year...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjn125
更新日期：2009-10-01 00:00:00
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; mea...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjr035
更新日期：2012-08-01 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：:The aim of this study was to statistically assess the morphological changes of the rat periodontal ligament (PDL) and its vascularity in relation to varied magnitudes of superelastic force in experimental tooth movement using nickel-titanium (NiTi) alloy wire. Forces of 0.8, 1.6, 4, 8, and 18 g were applied to the upp...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjn075
更新日期：2009-02-01 00:00:00
abstract：:The aim of this research was to evaluate the effect of the Delaire surgical technique on the midfacial morphology in a group of subjects with a congenital unilateral cleft of lip and palate (UCLP), prior to orthodontic treatment. Thirty-five UCLP (15 left and 20 right) patients (16 males and 19 females, mean age 7.03+...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjn068
更新日期：2009-02-01 00:00:00
abstract：:Occlusal traits and craniofacial morphology were studied in growing patients with Duchenne muscular dystrophy (DMD). Sixteen patients from 6 to 20 years of age were examined and compared with 16 healthy male individuals matched according to age. The dental arches and occlusal traits of both groups were analysed on den...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjm045
更新日期：2007-10-01 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：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
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：: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：:The aim of this study was to identify the craniofacial characteristics of 16 osteogenesis imperfecta (OI) patients, 10 males and 6 females, aged 7-15 years. The control group comprised 863 Chinese children from 6 to 18 years of age. Eleven cephalometric reference points and 25 variables were measured on the lateral ce...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjl035
更新日期：2007-06-01 00:00:00
abstract：:The purpose of the present investigation was to determine the long-term prognosis of autotransplanted premolars with respect to periodontal healing. The subjects consisted of 195 patients aged 7 to 35 years, with a total of 370 autotransplanted all operated and followed with a standard technique. The observation perio...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/12.1.25
更新日期：1990-02-01 00:00:00
abstract：OBJECTIVE:This prospective randomized clinical trial investigated the impact of different tooth brushing strategies and sealant application on patients with fixed appliances: plaque, gingival, caries index scores, periodontal parameters, microbial, and molecular biological parameters were assessed. MATERIALS AND METHO...
journal_title：European journal of orthodontics
pub_type： 杂志文章,随机对照试验
doi：10.1093/ejo/cjt043
更新日期：2014-04-01 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：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 effects of an extra chromosome on tooth size were investigated and compared to male and female controls, respectively. Mesiodistal dimensions in men with Klinefelter's syndrome were generally found to be decreased when compared to the male controls. A more pronounced inhibitory effect of an extra X chromosome was ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/15.3.195
更新日期：1993-06-01 00:00:00
abstract：:Orthodontics as health care is sometimes at odds with modern marketing with its strong focus on aesthetics. In this commentary, I highlight how important it is that research of orthodontic treatment as a value for the entire community is performed and published. ...
journal_title：European journal of orthodontics
pub_type： 评论,杂志文章
doi：10.1093/ejo/cjs081
更新日期：2013-04-01 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：:To investigate whether orthodontic cases can fulfil gnathologic requirement, models of 10 adolescent patients (of the Department of Orthodontics at the University Dental Clinic, Graz) were mounted in an articulator at band removal and 2, 4 and 12 weeks and one year later. During this year the patients wore a gnatholog...
journal_title：European journal of orthodontics
pub_type： 杂志文章,评审
doi：10.1093/oxfordjournals.ejo.a035989
更新日期：1989-08-01 00:00:00
abstract：:The persistence of childlike deglutition after the replacement of deciduous teeth is described as atypical deglutition. This condition has been attributed to sucking action without nutritive purposes, use of a feeding bottle, oral respiration, and anatomical abnormalities. Among the possible anatomical alterations, th...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjq167
更新日期：2012-02-01 00:00:00
abstract：Background:Scientific evidence is insufficient to answer the question of whether premature birth causes altered tooth-crown dimensions. Objective:To evaluate permanent tooth-crown dimensions in prematurely born children and to compare the findings with full-term born controls. Subjects and Methods:Preterm children of...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjx021
更新日期：2017-11-30 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 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：BACKGROUND:There are few cost evaluation studies of orthodontic retention treatment. The aim of this study was to compare the costs in a randomized controlled trial of three retention methods during 2 years of retention treatment. MATERIALS/METHODS:To determine which alternative has the lower cost, a cost-minimization...
journal_title：European journal of orthodontics
pub_type： 杂志文章,随机对照试验
doi：10.1093/ejo/cjt070
更新日期：2014-08-01 00:00:00
abstract：Objectives:To assess the potential effects of casein phosphopeptides (CPPs) on orthodontically induced iatrogenic root resorption (OIIRR) and orthodontic teeth movement. Materials and methods:Forty Wistar rats (aged 11 weeks) were randomly divided into experimental group (EG; n = 20) that received a diet supplemented ...
journal_title：European journal of orthodontics
pub_type： 杂志文章
doi：10.1093/ejo/cjw085
更新日期：2017-10-01 00:00:00
