Search Results For: 'case report'
2541.
Early Class III Treatment with a Hybrid Hyrax-Mentoplate Combination
Volume 45 : Number 1 : Page 15 : Jan 2011
Skeletal Class III malocclusions are relatively uncommon and usually associated with genetic factors. The etiology may involve a retrognathic maxilla, a prognathic mandible, or both.1,2 Young patients...
2542.
The Skeletal Frog Appliance for Maxillary Molar Distalization
Volume 45 : Number 2 : Page 77 : Feb 2011
Appliances typically used for molar distalization in Class II cases--removable plates and various types of headgear--require a high degree of patient motivation. This disadvantage has encouraged the d...
2543.
Locking the Screw after Rapid Palatal Expansion: A Superfluous Procedure?
Volume 45 : Number 12 : Page 657 : Dec 2011
The rapid palatal expander (RPE) is widely used to correct maxillary constriction. Clinically, there are only a few differences among the various expansion protocols, including the number and frequenc...
2544.
A New Self-Ligating Lingual Bracket with Square Slots
Volume 45 : Number 12 : Page 682 : Dec 2011
A major drawback of lingual orthodontics has always been the complexity of ligation. Since single ties cannot guarantee stable ligation, the double-over tie has become more prevalent, especially for K...
2545.
THE CUTTING EDGE
The iOC Intraoral Scanner and Invisalign: A New Paradigm
Volume 46 : Number 2 : Page 115 : Feb 2012
This quarterly column is compiled by JCO Technology Editor W. Ronald Redmond, DDS, MS. To help keep our readers on The Cutting Edge, Dr. Redmond will spotlight a particular area of orthodontic technol...
2546.
Volume 47 : Number 8 : Page 490 : Aug 2013
Other than the third molars, the maxillary canine is the most frequently impacted tooth in the dental arch. Although the incidence of canine impaction is about 1 in 100 in the general population,1 the...
2547.
A Biomechanical Approach to Second-Molar Intrusion
Volume 47 : Number 10 : Page 608 : Oct 2013
Adult patients with missing mandibular molars may present with altered occlusal planes due to extrusion of the unopposed antagonists and migration of teeth into adjacent spaces.1 In such cases, the ma...
2548.
THE EDITOR'S CORNER
Bias vs. Science in Clinical Decision-Making
Volume 49 : Number 1 : Page 9 : Jan 2015
Over the years, I have written several times about statistics and evidence-based dentistry.1-3 In my very first JCO interview, I was the interviewee rather than the interviewer, as our Senior Editor, ...
2549.
THE CUTTING EDGE
3D-Printed Orthodontic Auxiliaries
Volume 49 : Number 5 : Page 337 : May 2015
This column is compiled by JCO Technology Editor W. Ronald Redmond, DDS, MS. To help keep our readers on The Cutting Edge, Dr. Redmond will spotlight a particular area of orthodontic technology every ...
2550.
Digital Technology for the Management of Impacted Canines in Lingual Orthodontics
Volume 50 : Number 11 : Page 663 : Nov 2016
Upper canines are the most commonly impacted teeth, second only to third molars.1 Impacted upper canines occur in about 2% of the population and are twice as common in females as in males. About one-t...
2551.
Volume 49 : Number 12 : Page 770 : Dec 2015
The advantages of a rapid maxillary expander (RME) anchored to the deciduous teeth in the mixed dentition have been described in the literature, as has the use of a cast-metal Haas-type RME bonded to six deciduous teeth.[ref]1-4[/ref] If the upper first permanent molar remains impacted against the second deciduous molar, however, the distal root of the deciduous molar may experience early resorption, leaving the permanent molar unable to erupt spontaneously. It then becomes impossible to band the deciduous second molar, especially considering the poorly retentive coronal anatomy of the deciduous teeth. The use of bands could not only increase the risk of appliance failure, but create another obstacle to first-molar eruption. An alternative approach would be to extract the deciduous second molars and expand the permanent teeth, but this could lead to early loss of the leeway space, with the consequent need to regain space by distalizing the upper molars or by using extraoral traction in a second treatment phase, or to wait for full eruption of the first molars. It might also require a transpalatal bar to be used before expansion to correct a buccal molar inclination or molar rotation.
2552.
Use of Osseointegrated Implants for Orthodontic Anchorage
Volume 51 : Number 7 : Page 406 : Jul 2017
This biomechanical setup, called the handlebar-style technique, uses an osseointegrated implant-supported device as anchorage to accommodate vectors for correction of a single misaligned tooth while preventing undesirable movement of adjacent teeth. An existing implant can be used or one can be strategically placed, as illustrated in two cases.
2553.
Physiological Drifting of Ectopic Canines
Volume 51 : Number 8 : Page 481 : Aug 2017
If first premolars are extracted to make space for ectopic canines, rather than using loop or continuous-arch mechanics, the canines can be allowed to migrate naturally into the extraction sites. Two cases demonstrating this physiological drift are shown, and benefits of the approach are described.
2554.
COMMENTARY JPO Interviews Dr. Charles H. Tweed
SIDNEY BRANDT Dec. 1967-Feb. 1968
Volume 51 : Number 9 : Page 516 : Sep 2017
The first part of Dr. Sid Brandt’s interview of Charles H. Tweed was published the same year JCO was introduced—1967 (it started out as the Journal of Practical Orthodontics). My own introduction to o...
2555.
Comparison of Two Software Programs in Voxel-Based Superimposition of CBCT Images
Volume 53 : Number 11 : Page 662 : Nov 2019
In a retrospective study, Dr. Elshebiny and colleagues compare pre- and post-treatment superimpositions of cone-beam computed tomography images from 15 growing and 15 adult patients using two voxel-based programs, Dolphin 3D and OnDemand3D.
2556.
The Tandem Archwire Technique in Lingual Orthodontics
Volume 47 : Number 4 : Page 232 : Apr 2013
A single horizontal edgewise slot in a standard-width bracket is generally effective in controlling rotations and tipping.1,2 Biomechanically, because the moment of couple is generated across the brac...
2557.
Upper-Molar Intrusion Using Anterior Palatal Anchorage and the Mousetrap Appliance
Volume 47 : Number 5 : Page 314 : May 2013
Overerupted upper molars due to missing lower antagonists are a common orthodontic problem, especially in adult patients. To facilitate prosthodontic restoration in the mandible, the overerupted molar...
2558.
Burstone Series, Part I: Segmented Arch Technique
Volume 5 : Number 1 : Page 20 : Jan 1971
The segmented arch technique is a modified, full-banded edgewise orthodontic procedure which uses relatively light, constant force, with control over anchorage units as well as teeth to be moved. It w...
2559.
A Method for Obtaining Patient Cooperation in Positioner Wearing
Volume 8 : Number 10 : Page 575 : Oct 1974
It has been estimated that approximately 50% of the practicing orthodontists is this country have tried positioners and that the percentage of users has been increasing in the last few years. A major ...
2560.
Five Year Clinical Evaluation of the Andrews Straight-Wire Appliance
Volume 10 : Number 11 : Page 836 : Nov 1976
Introduction Those who have read my previous publication, or attended the International Congress for Orthodontists in Munich in 1973, are aware that my basic area of interest has been in the relations...
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