Computer Based Diagnostic Setup

DDr. Silvia M. Silli
Dipl.-Ing. Mag. Christian Url

The Computer Based Diagnostic Setup

Every orthodontic treatment plan is based on comprehensive explicit knowledge (evidence-based, state-of-the-art) and implicit knowledge (experience, intuition). Its formulation also requires the ability of abstraction, since most of its contents is created only in the doctor’s head. Because it is very time consuming to manufacture, an actual diagnostic setup model is only created in very complex cases (i.e. EX/Non-EX). However, in clinical practice it would always be helpful to have a quick visualization available – be it for evaluation of required space, for optimized bracket placement, bending wires or for consultation with the patient. In literature one cannot find a generally accepted "cooking recipe" for a diagnostic setup but a multitude of theories, opinions and guidelines.
This presentation shows the most important concepts for an "ideal" dentition, helpful tools for the manual creation of a setup and software for virtual 3-D treatment planning. We will show how everyone can create a virtual treatment objective by using the orthodontic analysis software OnyxCeph³ as an example. This software offers a semi-automatic setup creation process based on scientific concepts. These and the used visualization tools are demonstrated and the prerequisites for a virtual workflow are shown.


Source: IOS Congress

Orthodontist tutorial video - Direct Bonding Upper Sectional Wire

Orthodontic Tooth Movement and Root Resorption

Prof. Dr. Andreas Jäger

It is the goal of any orthodontic treatment to improve occlusal function and dentofacial esthetics. At the same time, a support of long-term health of the dentition is desired. Like any kind of medical or dental treatment, orthodontic movement of teeth entails principal risks which have to be explained to the patient. Among the
risks that have been discovered, mechanically induced resorption of the roots of teeth is of particular interest.
In the course of the lecture, recent basic research and clinically relevant aspects will be covered like incidence, etiology, diagnosis and possible strategies for avoidance. Special attention is given to the differentiation between possible risk factors inherent in treatment mechanics and those arising from susceptibility of the patient.

Source: IOS Congress

Voted Best Orthodontist 2013

Voted Best Orthodontist 2013, Cohen Johnson Orthodontics Fort Wayne

Fort Wayne Orthodontists Cohen & Johnson show how much fun you can have AND show how beautiful your smile can be! Braces for your faces. Fort Wayne's best smiles. 

Impacted Tooth Exposure & Uncovering For Orthodontics

Chain and Bracket, Surgical Exposure of Impacted Tooth For Orthodontics

Although we often think of the third molars, or "wisdom teeth," when we think of impacted teeth, any of the permanent teeth can fail to erupt properly. This lack of normal tooth eruption can be due to a variety of factors such as failure of the developing tooth follicle to have the correct orientation, improper developmental timing of the tooth bud, or ankylosis of the developing adult tooth to the surrounding alveolar bone. The wisdom teeth can just be extracted and removed, but other teeth that are impacted will have a more noticeable effect on the smile's appearance and also on a patient's occlusion and function.

This is especially true of the upper canines, which are the last of the front teeth to emerge and sometimes do become impacted. Usually, they are completely obscured by the bone and visible only in x-rays. 

Patients who are facing this issue can benefit from a collaborative treatment between an oral surgeon and an orthodontist. The oral and maxillofacial surgeon performs a procedure to uncover the impacted tooth, and the orthodontist moves it into place using specific appliances. 

This treatment is known as a surgical tooth uncovering and chain-and-bracket procedure. The orthodontist begins the course of treatment, attaching the orthodontic appliances to the visible teeth, creating room for the unerupted tooth. Then, the patient is referred to the oral surgeon for surgical exposure of the impacted tooth and placement of an orthodontic appliance to facilitate its eruption. Sometimes the maxillofacial surgeon may need to also luxate or mobilize the tooth as well, which makes the movement required easier for the orthodontics to achieve in a more efficient manner. That surgery involves lifting the gum tissue overlying the unerupted tooth and removing any bone that may obstruct it from being moved into place. A bracket and chain are bonded to the tooth, and the chain is later connected to the rest of the braces. When everything is in place on the tooth, the gum tissue is then repositioned and sutured. This is all performed under the comfort of sedation and typically can be completed within an hour.

After taking a few weeks to heal from the procedure, patients return to the orthodontist to get the adjustments that will put tension and rotation on the tooth in order to bring it properly into position. This process may require considerable patience, as it can take up to a year for everything to be complete. 

If your orthodontist has recommended a chain-and-bracket procedure as part of your treatment plan, schedule a consultation with our downtown Chicago office to learn more about the oral surgery involved in this process and whether your dental insurance plan will cover a surgical tooth uncovering.

This video was created and produced by the AAO (American Association of Orthodontists) and the AAOMS (American Association of Oral and Maxillofacial Surgeons) and explains in detail the process involved in a tooth exposure with the attachment

Links: Orthodontist Budapest

A Novel Combined SplintOrthodontic Removable Appliance to Correct a Posterior Forced Bite

Prof. Dr. Dr. Ralf J. Radlanski

A Novel Combined Splint Orthodontic Removable Appliance to Correct a Posterior Forced Bite

Patients with a posterior forced bite often show a retro-inclined angulation of the upper front teeth, very frequently combined with an elongation of the upper and lower anterior dentition. 

In these patients, the effect of a splint can be rendered questionable, when the mandible should come forward further, but is hindered by the incisor teeth. As a consequence, in many cases, the splints are 

fabricated with a very high vertical dimension. There are a number of patients, who do not tolerate this vertical dimension of the splints, and thus they are not worn as frequently as they should. And with a 

splint alone, maybe the symptoms could be reduced, however, no improvement of the malocclusion could be expected on the long run. Even worse: a mandible, that wanted to come forward under the splint will be forced backwards again, as soon as the splint has been removed. Therefore, we combine a splint with an active removable orthodontic appliance. A selection of cases will illustrate the approach and the success that has been achieved using this novel device.

Source: IOS Congress

Orthodontic Treatment Without Functional Appliances is not State-Of-The-Art!

Dr. Dr. Alexandra Bodmann MSc

Orthodontic Treatment Without Functional Appliances is
not State-Of-The-Art!

The FGB (functional generating bite) appliance avoids dysfunctions during children's growth

Functional appliances like the FGB can be used from the age of three years up to the stage of the permanent dentition. They support growth by correcting any dysfunction of the whole body, which may be caused by dislocking the dentition. As a result, the mandible is stabilized just by the stomatognatic muscles. Also, the muscular systems of the spine and the pelvis are infl uenced in a positive way: The posture is getting better just by harmonizing the muscular balance of the body. The different auxiliaries of the FGB can correct a crossbite, a deep bite or an open bite. The result stays stable due to the correct inclination of the occlusal plane. In one part of the presentation, it will be explained, how we can convert the bite and correct the inclination of the occlusion. The FGB appliance is easy to handle for any dentist, as it is a simple and very effective functional appliance.

Source: abodmann.de