Search Results For: 'case report'
541.
THE EDITOR'S CORNER
Pushing the Extraction Envelope
Volume 49 : Number 5 : Page 297 : May 2015
It seems that the great extraction debate is an inherent artifact of the specialty of orthodontics. I took up the subject in JCO as recently as December 2014, when Drs. Daniel J. Rinchuse, Lauren Sigl...
542.
The Shoulder Spring for Eruption of Impacted Canines
Volume 51 : Number 10 : Page 657 : Oct 2017
The authors present a simple device for forced eruption of impacted canines without special patient compliance. Unlike previous techniques, it avoids using the lateral incisors for anchorage, reducing the possibility of root resorption and the need for additional palatal root torque.
543.
Correction of Severe Crowding in Teenage Patients Using the Invisalign System
Volume 54 : Number 7 : Page 383 : Jul 2020
A young patient with upper and lower anterior crowding can now be treated without extractions using only clear aligners. Drs. Ojima, Dan, Kumagai, Watanabe, and Nanda demonstrate an approach involving upper arch expansion and molar distalization in a 12-year-old female.
544.
Anatomical Limits for Distalization of Lower Posterior Molars with Micro-Implant Anchorage
Volume 53 : Number 5 : Page 305 : May 2019
Based on conventional lateral cephalograms, the anterior border of the ascending ramus has been considered the limit for lower molar distalization. Drs. Kim, Jang, and Park use computed tomography to provide visual evidence of a more realistic anatomical limit.
545.
A Fixed Labial/Lingual Technique for Rapid Bite Opening
Volume 25 : Number 10 : Page 0 : Oct 1991
Lower incisor brackets are frequently sheared off by biting forces in deep-bite cases with minimal overjet. Previous methods of preventing this bracket loss have involved considerable time and expense...
546.
Effects of First Bicuspid Extractions on Facial Height in High-Angle Cases
Volume 27 : Number 11 : Page 0 : Nov 1993
Some disagreement exists concerning the effect of bicuspid extractions on the vertical dimension. It has been suggested that orthodontic forward movement of the posterior teeth after bicuspid extracti...
547.
Twist Ligation: A Technique to Reduce Archwire Binding
Volume 30 : Number 3 : Page 0 : Mar 1996
Differential anchorage is necessary when sliding mechanics must be applied asymmetrically. There is probably a linear relationship between stress (force per unit area) and tooth movement.1 However, be...
548.
Orthodontic Treatment: Art or Science?
Volume 34 : Number 6 : Page 371 : Jun 2000
Most orthodontists prefer to think of themselves as scientists, and yet much of orthodontic therapy is closer to art than to science. While many aspects of diagnosis, treatment planning, treatment, an...
549.
Molar Distalization with a Modified Distal Jet Appliance
Volume 34 : Number 7 : Page 419 : Jul 2000
The Distal Jet* is a fixed palatal appliance that is most commonly used to distalize the maxillary molars, either unilaterally or bilaterally. Advantages of the Distal Jet include improved esthetics,...
550.
Mandibular Molar Distalization with the Franzulum Appliance
Volume 34 : Number 9 : Page 518 : Sep 2000
Many extraoral and intraoral methods have been proposed for the distalization of maxillary first molars.1-3 In 1992, Hilgers introduced one such appliance, the Pendulum*,4 whose dental effects have ...
551.
Clinical Application of Micro-Implant Anchorage
Volume 5 : Number 5 : Page 298 : May 2002
Conventional methods of reinforcing orthodontic anchorage have several disadvantages, including complicated appliance design and the need for exceptional patient cooperation. Although standard denta...
552.
A Fixed Reverse Labial Bow for Moderate Class III Interceptive Treatment
Volume 37 : Number 1 : Page 42 : Jan 2003
The treatment of skeletal Class III malocclusion, particularly in the late deciduous or early mixed dentition, is one of the most challenging problems confronting the orthodontist. These patients freq...
553.
Retaining Treatment Results with the Advanceable Twin-Block Appliance
Volume 39 : Number 1 : Page 35 : Jan 2005
The twin-block appliance has been modified to allow bite advancement by means of a screw system incorporated into the maxillary appliance blocks.1 This can be advantageous in patients with severe over...
554.
The Greenfield Lingual Distalizer
Volume 39 : Number 9 : Page 548 : Sep 2005
The Greenfield Molar Distalizer (GMD), introduced in March 1995,1 is a fixed appliance with buccal and lingual pistons on each side (Fig. 1). Placing the pistons at the gingival level reduces the dist...
555.
Bite Jumping with the Functional Mandibular Advancer
Volume 39 : Number 12 : Page 696 : Dec 2005
The new Functional Mandibular Advancer*(FMA) is a fixed functional appliance that can correct a Class II malocclusion without the need for special patient compliance.1 Appliance Design The FMA has a p...
556.
Overlay Mechanics with the Tip-Edge PLUS Bracket, Part 1
Volume 40 : Number 2 : Page 0 : Feb 2006
The traditional procedure for treating Class I crowded cases requires the application of force to create space before a flexible archwire can be inserted for alignment. Simultaneous use of an overlay ...
557.
Uprighting Mesially Impacted Second Molars with Miniscrew Anchorage
Volume 41 : Number 2 : Page 0 : Feb 2007
Although mesial impaction of a mandibular second molar is relatively rare, with a prevalence of about .3%,1,2 it can present a difficult clinical problem. The orthodontist usually needs to upright the...
558.
Uprighting Mesially Inclined Mandibular Second Molars with a Modified Uprighter Jet
Volume 41 : Number 5 : Page 0 : May 2007
Premature loss of the mandibular second premolars and first molars due to caries or periodontal disease can lead to mesioinclination of the second molars. Various orthodontic methods have been used to...
559.
Modified Hyrax Expander for Correction of Upper Midline Deviation
Volume 43 : Number 3 : Page 158 : Mar 2009
In a mixed-dentition patient with maxillary transverse deficiency, when a deciduous canine is lost prematurely, the permanent incisors may migrate toward the affected side, reducing or closing the spa...
560.
A New Palatal Implant with Interchangeable Upper Units
Volume 43 : Number 5 : Page 318 : May 2009
Although self-drilling miniscrews can be inserted without making an incision, resulting in a relatively low risk of infection, they have a high rate of failure. Miniplates can be used for molar distal...
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