Showing papers in "American Journal of Orthodontics and Dentofacial Orthopedics in 1994"

TL;DR: It is demonstrated that bone-reorbing PGE and IL-1β produced within the periodontium are detectable in GCF during the early phases of tooth movement and return to baseline within 7 days.

TL;DR: In vitro and clinical investigation found that self-ligating bracket systems displayed a significantly lower level of frictional resistance, dramatically less chairtime for arch wire removal and insertion, and promoted improved infection control, when compared with polyurethane elastomeric and stainless steel tie wire ligation for ceramic and metal twin brackets.

TL;DR: It is proposed that body posture has a substantial effect on upper airway structure and muscle activity and should be taken into account when assessingupper airway size in the erect posture and in the supine position (computed tomography).

TL;DR: No significant association between duration of treatment and degree or amount of EARR is found and significant decreases in length (EARR) were found for those roots systematically intruded in this Class I malocclusion.

TL;DR: The findings indicate that a clinically significant increase in tooth size-arch length discrepancies occurred between 25 and 46 years of age and should be taken into consideration when orthodontists are considering various treatment and retention options for their adult patients.

TL;DR: During the posttreatment stage all variables showed relapse except for the expanded maxillary canines and premolars, however, the mandibular anterior segment demonstrated relatively good alignment at the long-term stage, which may be a reflection of prolongedMandibular retention.

TL;DR: It is suggested that 4-amino-1-hydroxybutylidene-1,1-bisphosphonate could be useful in enhancing anchorage or retaining teeth in orthodontic treatment.

TL;DR: It is revealed that at least 2 years of dummy sucking is necessary to produce a significant effect in the upper jaw and 3 years in the lower jaw, and that posterior crossbite could be predicted with upper and lower intercanine arch width.

TL;DR: Results of this study show that in low ambient oxygen tension cellular proliferation increases, whereas the AP activity, collagen synthesis, media pO2, PCO2 decreases, which suggests a triggering role for oxygen tension (an environmental factor) in bone remodeling.

TL;DR: Longitudinal growth changes in the adult craniofacial complex were studied for 24 white male and 23 white female subjects between the ages of 18 and 42 years who had Class I or end-to-end molar relationships and no excessive protrusions or retrusions.

TL;DR: The stability of increasing or decreasing the occlusal plane angulation with double jaw surgery in the presence of healthy and stable temporomandibular joints is confirmed.

TL;DR: The clinical characteristics of the LOP and HOP facial types, the specific anatomic changes with alteration of the occlusal plane, the presurgical orthodontic goals, and the surgical techniques for downward and backward and upward and forward repositioning of the maxillomandibular complex are discussed.

TL;DR: An overview of asymmetric growth in general and in mandibulofacial region in particular is presented where the possible association of lateral malocclusions is dis­ cussed and the importance of studying these associations is obvious.

TL;DR: The results support a recommendation for ibuprofen as a preferred analgesic in the treatment of discomfort because of postorthodontic adjustments and a repeated measures analysis of variance and post hoc studentized range statistics showed that the placebo group had significantly more discomfort than either the ib uprofen or the aspirin group at all the time intervals tested.

TL;DR: The distance between projections from points A and B on the palatal plane (App-Bpp) was found to be the best indicator of sagittal jaw relationship and was the least variable of the four measures considered.

TL;DR: Fiction tests of specimens that were run multiple times suggest that couples comprised of nickel titanium arch wires against ceramic brackets may actually improve as a result of a break-in period.

TL;DR: The forces observed suggest that friction may be a significant influence on the amount of applied force required to move a tooth in the mouth, and arch wire and bracket selection may be an important consideration when posterior anchorage is critical.

TL;DR: It is concluded that currently available zirconia brackets offer no significant improvement over alumina brackets with regard to their frictional characteristics.

TL;DR: The results showed that the dentoalveolar heights are significantly different between faces with excessive, normal, and short lower upper anterior face heights, except for the lower posterior dental height, which showed no difference between short and normal lower anterior face height subjects.

TL;DR: E l a s t o m e r is a general term that encompasses materials that, after substantial deformation, rapidly return to their original dimensions.

TL;DR: The results indicated that recently bleached teeth have significantly reduced bond strength values when compared with both groups 1 and 3, and it is suggested that if a patient is using a tooth whitening product, that they discontinue its use at least 1 week before the bonding of orthodontic attachments.

TL;DR: Whether the position of the mandibular molars was measured relative to the cranial floor or within the mandible itself, the mandIBular first molar was located more posteriorly on the Class II side of the subdivision malocclusion within a mandible that exhibited no other unusual asymmetry.

TL;DR: The purpose of this study was to determine the extent of apical root resorption, after fixed appliance therapy, in the posterior part of the dentition, and to evaluate if predisposing factors can be pointed out retrospectively.

TL;DR: A surgical orthodontic procedure was used to treat deep infraosseous impacted canines (test teeth) associated with the persistence of the deciduous tooth in 15 patients who had the contralateral canine normally erupted (control teeth).

TL;DR: On average, orthodontic treatment in both groups produced an increase in the cephalometric vertical dimensions that were examined, which revealed no significant differences between the vertical changes occurring in the extraction and nonextraction groups.

TL;DR: There was no significant difference between these two techniques from the point of root resorption amount.

TL;DR: The relationship between temporomandibular joint sounds and a person's dental and skeletal characteristics is poorly understood and the prevalence of joint sounds was not associated with age, race, gender, or molar class.

TL;DR: A three-dimensional soft tissue study of the results of surgery in a group of 15 women with Class II, Division I malocclusions after orthognathic surgery was performed with laser scans, finding there was very little relapse in the group as a whole from the third month to 1 year after surgery.