Abstract:
:The effect of contamination by dietary oil on acid etching has not been reported in the literature. If dietary oil adversely affects acid etching, then a decrease in bond strength is expected. This in vitro study investigated the bond strength of brackets bonded to tooth surfaces that had been contaminated with dietary oil and on which prophylaxis was not carried out. The mean shear bond strengths for the control, teeth with oil contamination and teeth with oil contamination but no prophylaxis undertaken were 53.33 +/- 14.31 (SD), 61.76 +/- 19.32 and 64.12 +/- 17.90 N, respectively. An analysis of variance (ANOVA) test showed that there was no significant difference between the three groups. The power of the ANOVA was calculated for the minimum clinical change that would be worth detecting and was found to be approximately 1.0. It can therefore be concluded that the presence of dietary oil on the tooth surface does not adversely affect shear bond strength, even if prophylaxis is not carried out. Bond failures for all three groups occurred mainly at the tooth-adhesive interface.
journal_name
Eur J Orthodjournal_title
European journal of orthodonticsauthors
Tan LS,Lew KK,Toh SLdoi
10.1093/ejo/19.2.109subject
Has Abstractpub_date
1997-04-01 00:00:00pages
109-14issue
2eissn
0141-5387issn
1460-2210journal_volume
19pub_type
临床试验,杂志文章,随机对照试验abstract:Background:Orthodontic diagnostic standards generally use the cranial base as a reference and rely on samples selected by orthodontists. Objective:The purpose of this study was to provide male and female standards for a novel non-radiographic approach for orthodontic diagnosis that utilizes 3D dentofacial photogrammet...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjw055
更新日期:2017-04-01 00:00:00
abstract::The aim of this study was to investigate the short- and long-term effects induced by rapid maxillary expansion (RME) on the shape of the maxillary and circummaxillary structures by means of thin-plate spline (TPS) analysis. The sample consisted of 42 patients who were compared with a control sample of 20 subjects. The...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/24.2.143
更新日期:2002-04-01 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:Background:Detection of pubertal growth peak is vital in orthodontic treatment timing and planning. Gingival crevicular fluid (GCF) contains abundant proteins from different sources and is an ideal source of biomarkers. The aim of this research is to detect candidate GCF biomarkers of pubertal growth by tandem mass tag...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjx082
更新日期:2018-07-27 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::The aim of this in vitro study was to investigate both shear bond strength (SBS) by shear testing of indirectly bonded brackets, and the accuracy of a new transfer method, the Aptus bonding device (ABD). For comparison, the SBS of directly bonded brackets in two experimental arrangements was also measured. The precisi...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjm094
更新日期:2008-02-01 00:00:00
abstract:OBJECTIVES:Mastication is an essential function that prepares the food for swallowing and digestion and may be related to nutritional status. Thus, the aims of this study were to evaluate the masticatory parameters in overweight and obese children and the relation between bite force and anthropometric evaluation, food ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjv092
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:To compare treatment duration between 0.018-inch and 0.022-inch slot systems and determine factors influencing treatment duration. SUBJECTS AND METHODS:Eligible participants aged 12 years or over were allocated to the 0.018-inch or 0.022-inch slot MBT appliance (3M-Unitek, Monrovia, California, USA) using bl...
journal_title:European journal of orthodontics
pub_type: 杂志文章,随机对照试验
doi:10.1093/ejo/cjy037
更新日期:2019-03-29 00:00:00
abstract:SUMMARY:The aim of this study was to measure lingual volume and to correlate it with and predict it from the area of the radiographic shadow of the tongue as well as with demographic and biometric characteristics. In 70 healthy subjects (35 males and 35 females) aged between 20 and 37 years, tongue volume was determine...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjp105
更新日期:2010-08-01 00:00:00
abstract::The purpose of the present study was to compare the cranio-facial morphology in children with and without enlarged tonsils. The material consisted of 73 children with enlarged tonsils, and a control group of children with normal tonsils, matched for age, sex, and number. The mean age for the groups was 10.1 and 10.0 y...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/12.3.233
更新日期:1990-08-01 00:00:00
abstract::The performance of 5941 stainless steel orthodontic brackets bonded with a no-mix adhesive (Right-on) in 563 patients was reviewed over a 5-year period. The effects of age and sex of the patient, treatment mechanics, operator experience, and arch location on the failure rate and mean survival time (MST) of bonded orth...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/16.3.203
更新日期:1994-06-01 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::Although there are numerous publications on bilateral non-compliance molar distalization appliances, there is limited information on problems such as asymmetrical unilateral Class II malocclusions. The aim of the present investigation was to examine the distalization of molars unilaterally in patients with a unilatera...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cji118
更新日期:2006-08-01 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: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::Soft tissue stretching has been proposed as one of the control factors in craniofacial morphogenesis. However, its mechanism remains unclear. The present study investigated electromyographic (EMG) activity and muscle fibre composition of cervical muscles following prolonged head extension in growing rats. Thirty-six m...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/25.1.21
更新日期:2003-02-01 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::The purpose of this study was to evaluate the outcome of a scheme for provision of orthognathic surgery by examining whether patients' expectations were fulfilled as well as their opinions about the result of treatment and side-effects. Data were obtained during a pre-planned 3-year follow-up clinical examination whic...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjm081
更新日期:2008-02-01 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::The aim of this in vitro study was to compare the shear bond strength (SBS) and failure modes of a conventional resin-based composite with a recently developed amorphous calcium phosphate (ACP)-containing orthodontic composite system. Forty freshly extracted human maxillary premolar teeth were randomly divided into tw...
journal_title:European journal of orthodontics
pub_type: 杂志文章,随机对照试验
doi:10.1093/ejo/cjp115
更新日期:2010-06-01 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 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::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::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:OBJECTIVES:The aim of this study was to evaluate the effects of premaxillary advancement with distraction osteogenesis (DO) on the skeletal, dental, and soft tissues. MATERIALS AND METHODS:A total of 21 cases with Angle class I molar relationship and negative overjet or edge-to-edge incisor relationship were included....
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjt056
更新日期:2014-06-01 00:00:00
abstract:Aim:The aim of this study was to describe hard and soft tissue changes after mandibular advancement surgery and to investigate the possible differences between Class II facial patterns. Materials and methods:Lateral cephalograms of 109 patients who underwent combined orthodontic treatment and bilateral sagittal split ...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cjx003
更新日期:2017-10-01 00:00:00
abstract::The publication of the three-paper series on the effects of two slot sizes on treatment parameters in this issue, targets a topic, which has attracted a lot of discussion based primarily on anecdotal evidence. The conclusive evidence contribute to the lack of variation of treatment variables with slot size selection, ...
journal_title:European journal of orthodontics
pub_type: 评论,杂志文章
doi:10.1093/ejo/cjy051
更新日期:2019-05-24 00:00:00
abstract::Seven-hundred-and-ninety-one 15-year-olds were subjected to an anamnestic and clinical examination of craniomandibular disorders. These individuals had been examined at the age of 12 years and this is one section of an extensive longitudinal investigation into the effects of malocclusion, and the effectiveness of orth...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/14.2.152
更新日期:1992-04-01 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 presentation is to describe an innovative adhesive procedure for connecting palatal implants with transpalatal arches (TPAs). The steps required for completing the procedure, the costs involved and the requisite time were reviewed and compared with those of two alternative procedures reported in the li...
journal_title:European journal of orthodontics
pub_type: 杂志文章
doi:10.1093/ejo/cji002
更新日期:2005-06-01 00:00:00