Tag Archives: analysis of position of jaws

analysis of jaw deviation

Analysis of Size and Position of the skull, Jaws and Dentition in the vertical and horizontal planes

Use of  the Visual-Dx Ceph method invented by  Ted Rothstein DDS PhD

PRESS RELEASE:

http://www.prweb.com/releases/BuckTeeth/ClassIIMalocclusion/prweb8568911.htm

 

skeletal open bite ceph

The above is a “Lateral Head”  X-ray  showing a true Skeletal Open Bite (SOB): the open bite shown here was caused by an excess vertical direction of growth at the back of the jaws.

IMG_7214

Analytic tools derived from my PhD thesis  U. Pa. 1973: Include the “Normal Standard” #3 Fem 14 y/o  and the summary and the Visual-Dx Ceph analysis sheet.

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Measuring and analyzing begins with by taking a lateral head X-ray of the patient’s skull and jaw:

skeletal open bite ceph

Then creating a tracing of it and marking off the “natural” and “derived” landmarks typically used by orthodontists (EAM, Ar, S, Na, A, B, Gn, Pog, Gn,  Me Go, Ar. etc. the most significant measuring points.

Tracing 2

 My tracing of the patient’s x-ray

 One of six templates: Normal Females age 10, 12; Fem 14 (shown here) and Normal Males 10, Male 12 and  Male 14

Template Normal Female 14 (2)

 The Normal for a Female 14 years old

Here is shown a standard TEMPLATE showing a Normal 14 y/o F:  In the female skull, growth is 97% complete by Skeletal age 14.  + marks show one standard deviation of the landmark point (horizontally and vertically) in  a sample N= close to 50 in all six samples.

The tracing is placed over the STANDARD (NORMAL) in a variety of ways to help the student (me) understand what the size and positional deviations are in the individual as represented in the tracing when compared with the standard.

tracing over tempalte

Tracing of patient’s skull superimposed over the Normal Female Template. NOTE: How much the patient’s chin extends vertically down beyond the “Normal” Template chin.

 

This analysis can measure in angles and distances. But its main advantage is that you can visualize the deviation and report the divergences in “Standard deviations” (Visual-Dx ceph analysis.)

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 Assembling the positional and size facts.

Purchase price for the set of six standard templates is $300

Not every case requires having a lateral head x-ray (also called a “Cephalometric” X-ray). Any time such an X-ray is taken it is subject to some analysis whose size and angular norms were derived from samples of persons.

The uniqueness of the Normal Templates used in the Visual-Dx Ceph analysis is that the samples were composed of persons sub-grouped by “skeletal” age and gender”. This kind of study has no peer.  These norms were used in my PhD dissertation to measure and visually allow me as an orthodontist to describe the true differences among adolescents and some adults who had “buck” (Class II, Division 1 malocclusion) compared to children who were  “normal”  (Class I).

Dedicated to Marion Wilton Krogman – my PhD mentor U.Pa. 1969-’71 who was the foremost forensic skeleton analyst in the country.

SEE http://www.drted.com/BuckTeeth%20Class%20II%20division%201%20.PDF

Part 1: AJO  Ted Rothstein. DDS. PhD. and Cecile Yoon-Tarlie. DDS- MSI   (American Journal of Orthodontics) 2000; 117:320-32)

Part II  AJODO (American Journal of Orthodontics and Dentofacial Orthopedics)  Rothstein T, Phan XL: Dental and facial skeletal characteristics and growth of females and males with Class II Division 1 malocclusion between the ages of 10 and 14 (revisited). Part II. Anteroposterior and vertical circum-pubertal growth. Am J Orthod Dentofacial Orthop; 2001 Nov; 120 (5):542-55 PMID: 11709673

March 17, 2016
Ted Rothstein DDS PhD
Specialist in Cosmetic Orthodontics
and Dentofacial Orthopedics: Adults & Children
Specialist in Orthodontic Jaw Wiring
American Association of Orthodontists–Life-active
161 Atlantic Ave. Ste. 1 Cor. Clinton St., Bklyn 11201
7188521551
www.drted.com     drted35@aol.com
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