From: firstname.lastname@example.org <email@example.com>
Subject: Hand sanitizers
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
From: Leon Klempner <firstname.lastname@example.org>
Subject: Online Collaboration
Date: Friday, January 14, 2011, 7:44 AM
In these economic times, enhancing relationships with our referring dentist and patients has become more important than ever.
Has anyone successfully use online collaboration tools like Fuze, Webex, GoToMeeting, etc successfully? If so, please share.
Port Jefferson, NY
From: Stanley Sokolow <email@example.com>
Subject: A DIY 3-d desktop STL machine you can play with
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.
From: Mark Lively [mailto:firstname.lastname@example.org]
Sent: Thursday, January 06, 2011 10:18 AM
To: ‘The Electronic Study Club for Orthodontics’
Subject: ESCO Postings
I am getting posts from ESCO in the original format in also in the WordPress
format, as I believe a previous update noted would occur. Is everyone
getting the WordPress version at this time? I just want to make sure that I
am reaching the masses, lol. I know that ESCO is moving over to WordPress,
but can one of the two posts be eliminated?
From: Dr. M.Jayaram [mailto:jmailankody@GMAIL.COM]
Sent: Monday, December 27, 2010 1:55 AM
Subject: Nice revival-Welcome and greetings
Happy to see the revived, after 9 months of hibernation! Nothing is as good to freely express our minds orthodontically.
Greetings for Christmas and a Happy 2011.
Looking forward to see ESCO in more interactive, informative mode and as useful orthodontic resource.
From: Stanley Sokolow [mailto:email@example.com]
Sent: Tuesday, December 21, 2010 10:37 AM
To: The Electronic Study Club for Orthodontics
Subject: The rebirth of ESCO
I too had thought that ESCO was dead, abandoned. No only was I no longer getting digests, but also when I visited the ESCO site, it looked like nothing had been added for a very long time. I was surprised to see these recent messages (below) come through from ESCO’s listserver. So, I did a Google search and found that ESCO has moved to a web-based forum at https://escoforum.wordpress.com/ . Too bad we didn’t get an announcement through the old listserver system. But now you know. Go visit the new site if you want to stay in touch with ESCO members.
I should also point out that a few years ago, I created a forum site for orthodontists, organized into categories and topics rather than free-form stream of consciousness postings that the listserver provided. It is located at dontics.org/forum and called the “Worldwide Orthodontics Forum”. After a short burst of curiosity and registrations by ESCO members, the forum became stagnant, with no new postings, but it still is functional. You need to register to see the main meat of the forum postings. Send an email to firstname.lastname@example.org to register for “Worldwide Orthodontics Forum”. There are instructions for use of the forum in the General Information category there.
Stan Sokolow, DDS
Santa Cruz, California