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

authors： Sćepan I,Babić M,Glisić B

更新日期：1993-06-01 00:00:00

abstract：:The present study reveals new data concerning the prenatal interrelationship between maturation of teeth and basicranial bones. By using radiographs of the mid-sagittal tissue segment of 43 human craniums, the developmental relationship between a well-defined stage of the central maxillary incisor development and the ...

journal_title：European journal of orthodontics

authors： Christensen LR,Kjaer I,Graem N

更新日期：1993-04-01 00:00:00

abstract：:Many more adults are undergoing orthodontic therapy than in the past. Since adult dentitions often exhibit diminished alveolar support, it is important to recognize the related apical migration of the dental centre of resistance when applying force systems to the teeth. The force system compensations necessary to prod...

journal_title：European journal of orthodontics

authors： Braun S,Winzler J,Johnson BE

更新日期：1993-02-01 00:00:00

abstract：:In 69 individuals from a randomized epidemiological material comprising 450 adults, an intra-individual comparison of the periodontal condition of 73 mesially tipped molars (30 degrees or more to a line perpendicular to the occlusal plane) and contralateral upright molars was made. The alveolar bone level mesially and...

journal_title：European journal of orthodontics

authors： Lundgren D,Kurol J,Thorstensson B,Hugoson A

更新日期：1992-12-01 00:00:00

abstract：:Class II elastics are usually employed in the treatment of excessive overbite and overjet with the Begg technique. The effect of Class II elastics on bite opening and the extent of such an effect is uncertain. This article, based on measurements of 30 cases, illustrates that the effect of the vertical component of for...

journal_title：European journal of orthodontics

authors： Xu TM,Lin JX,Huang JF,Cai P,Tan QF

更新日期：1992-08-01 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

authors： Waters NE

更新日期：1992-06-01 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

authors： Pilley JR,Mohlin B,Shaw WC,Kingdon A

更新日期：1992-04-01 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

authors： Dibbets JM,van der Weele LT

更新日期：1992-02-01 00:00:00

abstract：:The location of the centre of resistance (CR) of various consolidated units of maxillary anterior teeth was determined in this study using human autopsy material. The units studied consisted of two central incisors, four incisors, and six anterior teeth. When horizontal forces were applied the CR for the two- and six-...

journal_title：European journal of orthodontics

authors： Pedersen E,Isidor F,Gjessing P,Andersen K

更新日期：1991-12-01 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

authors： Bass NM

更新日期：1991-10-01 00:00:00

abstract：:Reduced nasal airflow can be the result of enlarged adenoids, hypertrophic turbinates, severely deviated nasal septum, or even narrow nasal cavities. The question of whether the width of the nasal cavity may influence certain facial dimensions examined on the postero-anterior cephalometric X-ray was evaluated through ...

journal_title：European journal of orthodontics

authors： Toutountzakis NE,Haralabakis NB

更新日期：1991-10-01 00:00:00

abstract：:The long-term goal of this research is to define the dimensions of nasal airway adequacy in children. Nasal airway size and variables associated with growth were assessed in 138 healthy children aged 7-15 years. The pressure-flow technique (Warren, 1984) was used to calculate the smallest cross-sectional area of the n...

journal_title：European journal of orthodontics

authors： Laine T,Warren DW

更新日期：1991-08-01 00:00:00

abstract：:A retrospective cephalometric study was made of the hard tissue changes in a group of 90 Class III, Skeletal III children, diagnosed as suitable for treatment by orthodontic means alone. Thirty-two were treated by a combination of upper incisor proclination and headgear to an intact mandibular dentition (Group 1), whi...

journal_title：European journal of orthodontics

authors： Battagel JM,Orton HS

更新日期：1991-06-01 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

authors： Gavakos K,Witt E

更新日期：1991-04-01 00:00:00

abstract：:Tooth displacement was analysed on human autopsy material for various types of orthodontic force systems using an electronic strain gauge technique. Tooth movements were registered in two dimensions with low force clip gauges on three sections of the mandible, containing the first premolar and the first molar. The sen...

journal_title：European journal of orthodontics

authors： Pedersen E,Andersen K,Melsen B

更新日期：1991-02-01 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

authors： Egermark-Eriksson I,Carlsson GE,Magnusson T,Thilander B

更新日期：1990-11-01 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

authors： Behlfelt K,Linder-Aronson S,McWilliam J,Neander P,Laage-Hellman J

更新日期：1990-08-01 00:00:00

abstract：:The aim of this study was to determine whether Fluor Protector, a fluoride varnish, applied to molars before orthodontic banding could prevent white spot formation. In the in vitro study 93 human premolars were used, divided in five different groups, representing different clinical situations. Each tooth was sliced in...

journal_title：European journal of orthodontics

authors： Adriaens ML,Dermaut LR,Verbeeck RM

更新日期：1990-08-01 00:00:00

abstract：:Lateral-skull radiographs were used to examine the hard and soft tissue changes following overjet reduction in 62 children with moderately severe Class II division 1 malocclusions. Thirty-two patients were treated by non-extraction methods using Fränkel appliances, and the remainder by a standard Edgewise technique in...

journal_title：European journal of orthodontics

authors： Battagel JM

更新日期：1990-05-01 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

authors： Andreasen JO,Paulsen HU,Yu Z,Schwartz O

更新日期：1990-02-01 00:00:00

abstract：:The aim of this study was to develop a valid and reproducible index of orthodontic treatment priority. After reviewing the available literature, it was felt that this could be best achieved by using two separate components to record firstly the dental health and functional indications for treatment, and secondly the a...

journal_title：European journal of orthodontics

authors： Brook PH,Shaw WC

更新日期：1989-08-01 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

authors： Droschl H,Permann I,Bantleon HP

更新日期：1989-08-01 00:00:00

abstract：:The mechanics of the quadhelix maxillary expansion appliance have been derived using the complementary (strain) energy approach, and the results checked experimentally on enlarged models. Good agreement between theory and experiment was obtained, for both the lateral stiffness and the magnitude of the molar couple ind...

journal_title：European journal of orthodontics

authors： Jones SP,Waters NE

更新日期：1989-05-01 00:00:00

abstract：:The purpose of this study was to compare the effect of overjet and overbite correction in non-extraction and extraction therapy in a sample of Class II malocclusions treated with the Edgewise appliance. The subjects were 20 children treated without extraction and 20 children treated with extraction of the four first p...

journal_title：European journal of orthodontics

authors： Hellekant M,Lagerström L,Gleerup A

更新日期：1989-05-01 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

authors： Mossaz-Joëlson K,Mossaz CF

更新日期：1989-02-01 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

authors： Wenzel A,Williams S,Ritzau M

更新日期：1989-02-01 00:00:00