Category Archives: Products

Nexus brackets

From: Dr. Blair Adams <adams.blair@gmail.com>
Subject: nexus brackets
To: escostudyclub@yahoo.com

Has anyone used nexus brackets? They are the Forestadent version of the GAC Innovation bracket that has been ‘adopted’ by Ormco.

I currently use 50:50 Damon / Innovation, but if I could pool all with one company there might be serious financial benefits.

Dr Blair Adams
adams.blair@gmail.com
Ottawa Canada

Need a new camera

From: Dr. Joshua Wachspress <doc@braces.co.il>
Subject: need a new camera
To: escostudyclub@yahoo.com
Date: Wednesday, February 16, 2011, 1:58 AM

Good morning all

Are there any recommendations for a staff- friendly digital camera?

Thanks,
Josh Wachspress
Modi’in, Israel

Dry heat sterilizers

From: kevinutley@comcast.net <kevinutley@comcast.net>
Subject: dry heat sterilizers
To: escostudyclub@yahoo.com
Date: Wednesday, February 16, 2011, 8:07 AM

I spoke with a noted orthodontic office design person yesterday about my upcoming expansion/renovation of my office.  She told me that orthodontists are getting away from dry heat sterilizers (Dentronix) and going to autoclave type systems that allow bagging during sterilization.  Her thought is that this “looks” better from a patients point of view.  Pretty much a marketing move.   I didn’t have time to question her about corrosion…etc., so I let it go.  What are your perceptions about this?

Kevin C. Utley

Planmeca Xray machine

From: Dr. ThuyDuong Truong <thuyduongtruong@yahoo.com>
Subject: Planmeca Xray machine
To: escostudyclub@yahoo.com
Date: Tuesday, January 25, 2011, 11:21 AM

I have a Digital Pan/Ceph Planmeca CC 2002 purchased in the year of 2002 with the Dimaxis 2.4.5 version.  Does anyone have problem with it lately regarding the PCI board connection to the Dimaxis software.  Any information is appreciated. 
ThuyDuong Truong
San Diego, CA

Hand sanitizers

From: kevinutley@comcast.net <kevinutley@comcast.net>
Subject: Hand sanitizers
To: escostudyclub@yahoo.com
Date: Monday, January 24, 2011, 10:49 AM

I started using handsanitizing gel instead of handwashing a few months ago.  I find that it allows me to glove up much more quickly and move through my day.  I still wash if there is visible soil on my hands (usually after soldering something in the lab).  Anyone aware of any studies that compare the use of hand sanitizers instead of hand washing?  How many of you are using hand sanitizers?

Kevin C. Utley
Cordova, TN

A DIY 3-d desktop STL machine you can play with

From: Stanley Sokolow <stanleysokolow@gmail.com>
Subject: A DIY 3-d desktop STL machine you can play with
To: escostudyclub@yahoo.com
Date: Tuesday, January 11, 2011, 12:39 PM

If you’ve seen the video presentations from Align Technology about their process for turning 3-d computer virtual models into aligners, you probably saw their elaborate 3-d stereolithography (STL) machines.   These devices have a platform which sits at the surface of a vat of light-cure plastic liquid and a laser which the computer controller scans across the liquid surface, drawing a horizontal cross-section of the object (patient’s teeth).   Then the controller lowers the platform a smidgen and draws (light-cures) the next thin layer, and so on until the plastic cast is built.   These machines cost hundreds of thousands of dollars each.  They are about the size of a very large refrigerator, or two.  Not practical for an orthodontic office’s lab.

I’ve seen a different approach for turning 3-d data into physical models.  This line of products uses something resembling an ink-jet printer, but instead of squirting ink, it squirts melted wax.   The jet is moved around on a flat area by the machine and builds up a model, layer by layer, like the light-cure STL machine.   The market is for engineering firms who want a quick physical prototype of mechanical parts, but it’s wax.  These devices cost about $3000 to $4000 each.

Today I discovered that a small company is showing, at the 2011 Consumer Electronics Show, a desktop 3-d STL machine that uses thermoplastic ABS filament (resembles the “string” for a string-trimmer weed-eater tool), heated by the drawing head, and extruded onto the platform.   This builds up the model the same way as the other machines, but what you get is a plastic model.  It can also make objects with PLA, which is a biodegradable plastic.  The box is small enough to sit easily on a desk or counter top.  You supply the computer.  It’s sold as a partially assembled kit, for $1,225 (US dollars).  I don’t know anything about the software that comes with it, but the ads say it is an “open source” product, so I assume it’s something a Do-It-Yourself (DIY) geek can deal with.   Here’s an article describing it, with a video:  http://www.gizmag.com/makerbot-thing-o-matic–the-diy-3d-printer/17516/.  They call it the “Thing-O-Matic”.

If you’ve ever wanted to experiment with turning 3-d orthodontic models into physical casts in your office, this may be a way to get started.  It’s not a turnkey product for orthodontic use, but a component of one if you are technically competent enough to take the idea and turn it into something practical.  Why would you want one?   Maybe, if you have eliminated plaster casts from your office records and you want the ability to turn quickly a 3-d virtual model into a physical model upon which you can make an appliance in-house, this might do it for you.  The companies that digitize impressions can produce the output in various data formats, often including the standard STL format.   Or maybe you are an orthodontic inventor and want to make prototypes of your designs for a new bracket or new instrument.  Or maybe you want to make jewelry or toys from designs you create on 3-d modeling software.  If you like to tinker with such things, check it out at: MakerBot Industries.

Have fun.

Stan

Allergic reactions to Invisalign materials

From: Charles J Ruff [mailto:orthodmd@me.com]
Sent: Thursday, January 06, 2011 7:56 AM
To: ESCO ESCO
Subject: allergic reactions to Invisalign materials

I recently had a patient (45 yr old adult female) who complained of medical problems that started around the same time as she started Invisalign tx.  The chief complaint was vitamin D deficiency as well as being run down.  When I moved her from regular aligners to Invisalign retainers, her symptoms increased to the point she felt her tongue and throat were swollen and very sore.  When she removed the retainers she felt much better.

I then transitioned her to a fixed lower retainer and a true Essix retainer made from Ace material from Raintree.

The patient then did some research and found out about the FDA fine that Invisalign paid for not properly notifying the FDA about similar type complaints  that Invisalign was aware of.

Does anyone have any similar concerns or complaints from patients?

thanks

charlie ruff 

Here is a note from the patient about what she experienced

http://www.uic.edu/depts/dort/ESCO/Fotter.pdf