Search Results For: 'orthodontics'
2001.
Asymmetrical Mandibular Molar Protraction with Conventional Mechanics
Volume 49 : Number 5 : Page 304 : May 2015
Mandibular molar protraction is one of the most difficult and least predictable orthodontic movements to achieve, not only because the molar roots are wide buccolingually but because the mandible is f...
2002.
The Zygoma and the Symphysis: New Extra-Alveolar Sites for Long Mini-Implants
Volume 51 : Number 10 : Page 680 : Oct 2017
Long mini-implants placed in extra-alveolar areas of good bone quality and quantity can provide stable anchorage without the added cost and surgery of miniplates. The authors evaluate the potential of two new sites, the zygoma and the symphysis, in orthopedic Class III treatment.
2003.
Comparative Direct Dosimetry of Cone-Beam Computed Tomography Using Reduced Basis Projections
Volume 52 : Number 3 : Page 173 : Mar 2018
Efforts to reduce patient dosage from CBCT have focused on reducing the field of view—an impractical approach for orthodontic imaging. This study from Drs. Mah and Danforth uses direct dosimetry to evaluate the effectiveness of an alternative approach: reducing exposure by performing a half scan instead of the traditional full scan.
2004.
CAD/CAM Metallic Printing of a Skeletally Anchored Upper Molar Distalizer
Volume 54 : Number 3 : Page 140 : Mar 2020
Laser melting is an innovative method of 3D printing that has been used to produce metal rapid palatal expanders. Drs. Graf, Vasudavan, and Wilmes show how to use computer-aided design for 3D metal printing of a molar distalizer with palatal mini-implant anchorage.
2005.
CASE REPORT
Volume 57 : Number 3 : Page 169 : Mar 2023
This case demonstrates a protocol called SKAR III (skeletal Alt-RAMEC for Class III) in a completely digital workflow. Interceptive treatment of a complex Class III hyperdivergent patient is accomplished in two phases, involving rapid palatal expansion followed by miniscrew-anchored expansion and protraction.
2006.
Production of Low-Friction and Colored TMA by Ion Implantation
Volume 29 : Number 7 : Page 453 : Jul 1995
Titanium molybdenum alloy (TMA*) wire has demonstrated superior clinical properties including high springback, low and intermediate force levels, good formability, and weldability. Unlike other common...
2007.
Practical Points to Practice Efficiency, Part 4
Volume 9 : Number 11 : Page 679 : Nov 1975
Band Removal Appointment At the first appointment, I remove all the bands except the four first molars, and an assistant removes the cement with hand instruments and cleans the teeth. She then re-educ...
2008.
OVERVIEW
Upper-Molar Distalization and the Distal Jet
Volume 50 : Number 3 : Page 0 : Mar 2016
Can upper molars really be distalized? This elusive query comes up whenever the topic of Class II correction is raised, yet no conclusion seemingly achieves a consensus. At least, we periodically pretend not to comprehend how correction occurs (despite the substantial number of clinical and research reports on the subject) so as to promote methods that may be in current favor. The idea that the maxilla or the maxillary dentition can be moved posteriorly to resolve a Class II malocclusion is perhaps one of the oldest and least understood concepts in orthodontics. The application of some type of pushing force against the upper arch and teeth to correct a Class II has obviously worked well enough during the past 100 years of orthodontics to perpetuate the "orthopedic" side of the specialty. The term distalization is a neologism, made up in recent years for our convenience. But while it may be an example of "bad" English, it might still be good orthodontic practice. To address whether upper molars can really be distalized, we need to address how contemporary distalization methods do what they do.
2009.
JCO Interviews Dr. Terrell L. Root on Headgear
Volume 9 : Number 1 : Page 20 : Jan 1975
20-jco-img-1.jpgTerry Root is one of this country's outstanding clinical orthodontists, whose studies on headgear make him especially well qualified to discuss this subject. He is a diplomate of the A...
2010.
THE EDITOR'S CORNER
Volume 32 : Number 12 : Page 701 : Dec 1998
I was talking with a professional colleague the other day about how orthodontists don't yet have a dependable system for selecting good chairside assistants. Despite my own efforts1 and those of other...
2011.
Treatment of Complications after Unintentional Tooth Displacement by Active Bonded Retainers
Volume 50 : Number 5 : Page 0 : May 2016
Maintenance after orthodontic treatment is often mistaken for stability of the post-treatment status. As stated by Oppenheim in 1934, "Retention is the most difficult problem in orthodontia; in fact, it is the problem". Bonded lingual retainers, which have become a standard part of retention protocol due to the relapse tendency of lower-incisor irregularity, have been shown to be effective in maintaining the alignment of the mandibular anterior region. Nevertheless, such retainers can loosen without being noticed or even be unintentionally activated, resulting in undesirable tooth displacement.
2012.
Volume 2 : Number 9 : Page 0 : Nov 1968
Diagnosis The patient was a 12 year old boy with a Class I bimaxillary dental protrusion (Fig. 1). The bite was not closed. The lower anterior teeth were irregular. The open bite tendency and the irre...
2013.
Volume 3 : Number 10 : Page 513 : Oct 1969
There is an old saying in orthodontics--"Put your plaster on the table". This is an inelegant way of saying, "Let's see your cases". Unfortunately, when cases are shown in publications, at lectures an...
2014.
Volume 24 : Number 9 : Page 0 : Sep 1990
The topics are staff training and second molar extraction.1. How do you handle operatory staff training? Virtually all the respondents reported using a combination of several different techniques. Dir...
2015.
THE EDITOR'S CORNER
Volume 29 : Number 9 : Page 533 : Sep 1995
Eric Hoffer, the longshoreman-philosopher, described in his book The Ordeal of Change the fear, uncertainty, and hesitancy he suffered as a migrant farm worker in California when he shifted from picki...
2016.
THE EDITOR'S CORNER
Volume 37 : Number 10 : Page 521 : Oct 2003
The data from the 2003 JCO Orthodontic Practice Study have been collated and analyzed, and the results will appear in a series of reports starting with this issue. As always, JCO would like to thank t...
2017.
Basion Horizontal Coordinate Tracing Film
Volume 13 : Number 9 : Page 598 : Sep 1979
Basion Horizontal is a term the author introduced into orthodontics to describe a totally coherent interrelated philosophy of craniofacial growth, method of superimposing tracings, system of quantitat...
2018.
A Reappraisal of Cephalometrics, Part II
Volume 4 : Number 3 : Page 134 : Mar 1970
Explanation of the Advantages of the Relaxed Cephalogram (Continued) (B) An accurate and dependable bite opening inventory for the patient is immediately obvious. The predictability of the conventiona...
2019.
CASE REPORT
Volume 51 : Number 11 : Page 719 : Nov 2017
This report illustrates how anterior open bite can be corrected in a Class II case by combining upper lingual and lower labial brackets with miniscrew anchorage to achieve intrusion of the maxillary posterior teeth and consequent counterclockwise mandibular rotation.
2020.
Nonsurgical Approaches to Eruption of Impacted Maxillary Canines: A Case Series of Triplets
Volume 60 : Number 7 : Page 457 : Jul 2026
Three triplets with impacted maxillary canines are treated by early transverse correction, extraction of the deciduous canines, and space opening, allowing spontaneous eruption in every case without surgical exposure or traction.
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