3D Printing and Orthodontics

By Dr. Christian Groth

As we move towards the 2015 AAO Annual Session in San Francisco many of us will be making check lists for items to investigate at the exhibition hall and lectures. Anybody who has attended recent meetings has seen that intraoral scanners are a hot topic. Every year new products are being released, or updates to current systems are offered. Intraoral scanning has opened the door for additional technologies within (and outside of) the orthodontic office. Dr. John White wrote a very informative blog post in February talking about the use of intraoral scanning for same day consultations (click here to read it). As more people are offering clear aligner therapy (including general dentists and the mail order aligner system that we all know about) it is time that we differentiate ourselves as orthodontic specialists. One way in which we can do this is to incorporate 3D printing into our daily practices.

3D printing, also known as additive manufacturing, is a process by which a physical object is created from a digital file (check out a video of 3D printed models here). There are several different types of 3D printers available that range in price from a few hundred dollars to almost one hundred thousand dollars. They all have one thing in common: they build models layer-by-layer with a build platform that moves vertically. The smaller the layer thickness the better looking the model will be. The four most popular types of printers are: Fused Deposition Modeling (FDM), Stereolithography (SLA), Digital Light Projector (DLP), and Polyjet Photopolymer (PP). Without getting too technical here is how each basically works. FDM involved heating up a thin strand of plastic resin that comes off of a spool and is deposited in layers as thin as 100 microns. SLA and DLP technologies are similar in that they utilize a vat of liquid, photosensitive resin. When the light hits the resin it is cured and platform moves to enable the next layer to be cured. The different between SLA and DLP is that SLA uses a single laser point to draw an image whereas DLP uses a projected image to cure a whole layer simultaneously, which allows the printing process to move faster (think of this as the difference between drawing a picture and stamping a picture). PP printers are probably the most popular in dentistry and use inkjet technology (yes, just like your desktop printer). Liquid resin is jetted out of nozzles in an extremely accurate fashion and cured by a UV. Layer thickness of SLA, DLP, and PP printers can be as low as 16 microns (for your reference the average piece of paper is 100 microns thick).

While the technologies differ between printers what truly sets them apart is the quality of the parts. Cheap printers are made from cheap parts that can degrade over time and result in inaccurate models. It is truly a case of you get what you pay for. So if you are in the market for a 3D printer to be used in your practice, buy the best one that you can afford.

3D printed models can be used for anything in the orthodontic office.   The most practical use is for retention and relapse treatment. A major downside to stone models is that they are often destroyed during the retainer fabrication process. 3D printed models do not get ruined and can be used as many times as necessary for retainer fabrication. Imagine being able to print a model, make a clear retainer, and mail it off to a patient who is away at college. What a service you have just provided to your patient and they never stepped foot in your office! Pairing 3D printing with one of several software programs available allows us to create sequential setups/models for minor tooth movement. By controlling the process we control the overhead and thus have the ability to pass these savings on to the patient. Another great service that we can offer our patients if they have a lapse in retainer wear.

Whatever your practice is like there is a place for 3D printed models in it. While you will pay a little bit more for the physical model, the longevity, versatility, patient excitement, and ability to virtually eliminate alginate impressions from your practice will pay off in the end!

The Digital Generations

By Anthony M. Puntillo DDS, MSD

Dr.-Puntillo-PictureThe majority of the U.S. Workforce today is comprised of three generations:  Boomers (1946-64), Xers (1965-80) and Millennials (1981-99), each generation with its own unique set of characteristics.  The American Association of Orthodontists (AAO) now reports that more than 51% of its membership is composed of Gen Xers and Millennials.  By virtue of their birth timing Xers and Millennials, including myself (1966), were the first generations to grow up with computers in their homes.  Although Gen Xers differ from Millennials in many ways, technology is now ingrained into nearly every part of both generations’ lives.  For those Xers and Millenials that also happen to be orthodontists, this attachment to technology includes not only their personal lives, but also their orthodontic practices.

Over the last few years, my blog posts have centered on the discussion of a “Digital Orthodontic Practice.”  A digital practice must include not only the management and record keeping aspects (paperless) of our offices, but also clinical diagnosis and tooth alignment functions.  In this post, I want to highlight the current opportunities for moving digital in the clinical portion of your practice.


The clinical care for most orthodontic patients begins with a diagnosis and a treatment plan.  Given that Kodak is now only a shell of the company that it once was, I think it is safe to say most orthodontic practices are now taking digital photographs, instead of film, as part of their diagnostic records.  The recent 2014 JCO study of Orthodontic Diagnosis and Treatment Procedures1 found that more than 91% of the respondents used digital radiography, 69% used CBCT either routinely or occasionally, 41% used digital models and 28% used intraoral digital scanners.  Additionally,  the American Board of Orthodontics (ABO) recently announced that all initial models for their exam must be submitted in a digital format.  While the JCO survey included a relatively low number of respondents (n=135), I believe the findings are indicative of the Electronic Health Record (EHR) movement in all of the health care profession.  This movement, aided by government mandates and subsidies, has now breached the threshold level.  The train has left the station.  If you and your practice intend to stay relevant over the next decade, you absolutely need to be utilizing digital diagnostic records.

Tooth Alignment:

As our profession transitions to a digital diagnostic record norm, some are looking to move beyond diagnosis to digitally construct tooth aligning appliances.  In 1999, Align Technology opened the door to digital orthodontic tooth alignment with the introduction of the Invisalign system.  The system at that time relied upon traditional dental impressions, but today intraoral scanners and 3D printing have allowed for the elimination of the impression procedure.  Whether it be Align, or any other current Clear Aligner option, a digital model (.STL) of a patient’s dentition can be captured with a scanner, the teeth can be aligned using computer software, and treatment appliances (clear aligners) can be fabricated by machines based off of the digital “plan”.  Furthermore, this process can now also be utilized for patients using traditional bonded brackets.  Custom brackets along with custom bracket placement jigs and custom wires digitally planned and robotically bent are possible.  In large part because of costs and the learning curve, the digitization of clinical orthodontic procedures has not yet been completely accepted.   However, as the techniques become more refined, we should expect the cost to include them into our practices to decrease and implementation by the tech savvy Xers and Millennials to accelerate.  If you are an Xer or a Millennial, and have not already incorporated digital tooth alignment into your practice, you should be planning to do so in the near future.  If you are a Boomer, and potentially less comfortable with technology, you need to consider if you can afford to ignore this change.

Creating an esthetically pleasing and stable smile, can be a bit like designing and constructing a building.  In a recent conversation with a Boomer architect friend of mine he described the digital changes his profession has undergone.  My friend reported that my office, built in the year 2000, was one of the last buildings he drew by hand.  All of his projects now are digitally designed using 3D CAD technology, allowing him to plan and visualize the end construction result more effectively.  The transition in the architectural profession took time and learning.  Change is never easy.  However, as my friend now approaches the end of his career, he finds the “old” way inefficient and less accurate.   Whatever generation you were been born into, I encourage you to embrace the digital change our profession is in the midst of.  I am certain a digital orthodontics will ultimately benefit you and your patients.

1Keim Et.Al. 2014 JCO Study of Orthodontic Diagnosis and Treatment Procedures, Part 1: Results and Trends Journal of Clinical Orthodontics 2014; 48:10 pages 607-630.

Virtual Setups Using Intra Oral Scanners for Same Day Consultation

IOScan_exampleBy John White DDS, MSD, ABO

Having been in orthodontic practice for 35 years, I’ve seen a lot of changes in all aspects of orthodontic care.  Most changes have been totally under our control and are merely choices. Whether you choose to use self-ligating appliances or not impacts your mechanics but not really your ability to produce an excellent result. Most cases do not require a CBCT to adequately diagnosis or treatment plan to achieve that same excellent result. Robotic orthodontics, also known as pre-bent appliances, have benefits and drawbacks, but once again are unnecessary for creating that “perfect smile”. Most of us have never done more than dabble in lingual appliances; without any loss to our practice. And while clear aligner therapy has probably the greatest (potential) impact on the traditional delivery of orthodontic care, there are plenty of very successful orthodontic practices that presently don’t use it at all or only on a limited basis.

That being said, competition in the market place has changed significantly, from the outside. We can’t rely on the “gold plated” referrals from our GP colleagues like we once did. Second opinions are becoming the norm. We have one chance to develop a relationship while we present our treatment “design”.  We deal less with patients and more often with consumers.  Where we used to do exam / records / consultation on separate visits, the sequence has evolved for many of us into a single visit. We used to show our beautifully finished cases with plaster models and photos, or cut and pasted smiles from the AAO smile library and so forth. Today’s consumers want more.

The advent of CAD/CAM treatment planning and design software is changing all that.  We now have the ability (and even possibly the responsibility) to do virtual treatment planning, trying out options and alternatives with accuracy and predictability. The ability to customize everything about treatment from the beginning goes beyond the capability to modify and adapt the otherwise generic prescriptions and archforms of the past to match the particular patient’s needs.

Tens of thousands of patients have seen their clear aligner predictions or pre-bent setups. This is changing the exam and consultation process. Patients are becoming aware that we can show them what their teeth will look like post treatment. An interactive approach to smile design and occlusion function is not only possible but a significant advance in marketing and patient appreciation of what goes into their treatment plan beyond just straight teeth.

For purists, one of the leaders in CBCT scanners is currently beta testing 3D integration of IO scans with CBCT imaging and computerized jaw tracking.

There are stand-alone software that permits visualization and treatment planning of IO scanned data, and some IO scanners come bundled with similar software.  Some scanners are not only able to directly scan to aligner companies, but also come bundled with “Treatment Simulator” software.

While I am invested primarily in a single technology, I routinely use several of these and am doing trial runs of others. The learning curve is not terribly steep for any of these. And they all work.

The logistics of same day exams with IO scan and treatment simulation becomes the biggest hurdle.  We do an office tour ending with a CBCT (with face scan) and photos, if the IO scanner is available and the patient has time, we do an IO scan. This combination takes 30-40 minutes (as opposed to 20-25 without IO scan). While we review CC and get acquainted, everything is loaded.  The treatment simulation is run in the background (the 3 treatment algorithm choices are preselected).

After we have reviewed my diagnosis we look at the treatment simulation and start moving teeth to reflect my recommendations and patient wishes.  This not only increases patient engagement but shows that I am intimately involved in the treatment design, not just letting the computer treatment plan for me. It helps explain tooth size discrepancies and why IPR may be necessary (even on extraction cases). We can measure expansion and torque requirements and cuspid inclination. And it is especially useful for pre-restorative setups; visualizing spacing and vertical setup, bonding undersize laterals, etc.. Multiple treatment scenarios can be done to help illustrate trade-offs in compromise cases.

Not only is there improved communication with and education of the patient/parent, but a unique understanding of the case above and beyond the “Old Days” where I fondled a set of soaped and polished study models or CR mounted models.

Finally, we can re-establish our reputation with consumers as the experts in orthodontics by using and properly explaining to them the benefits of this technology.

What is “Big Data” and How Is It Related to the Practice of Orthodontics?

Dr.-Puntillo-PictureBy Anthony M. Puntillo DDS, MSD

Have you heard of the term “Big Data”?  My guess is that for many orthodontists the term is likely a bit like the term “The Cloud.”  They may have a general idea of the concept, but are not entirely sure how it is or will be important to them.  In fact, there is a strong relationship between the two terms that I will discuss later in this article.  First, however let’s look at “Big Data” by itself.  According to Wikipedia “Big data is a blanket term for any collection of data sets so large and complex that it becomes difficult to process using on-hand data management tools or traditional data processing applications.”

In 2009 the United States Congress passed the American Recovery and Reinvestment  Act (ARRA) which included the Health Information and Technology for Economic and Clinical Health Act (HITECH).  [For a detailed summary of this legislation please see Kirt Simmons blog posting from July 9, 2012 “The Electronic Patient Record: How it Affects the Private Practitioner”]. One of the requirements of HITECH is that full implementation of electronic health records (EHRs) for all patients is required by 2016.  The requirements of this act specifically pertain to healthcare providers who participate in the Medicare and Medicaid programs.  That means that currently few dentists are covered by this mandate.  However, this does not mean that we are not being affected.  Since 2009 doctors and hospitals across the country have spent billions of dollars, with the help of government subsidies, converting paper based systems to electronic digitally based health records.  These new digital systems are now collecting vast amounts of valuable data related to patient care.  Much of this information was collected before the legislation, but in a paper non-standardized format that was not easily aggregated and retrievable for meaningful analysis.  The value of all of this collected digital data is only beginning to be fully understood.  Big Data from all healthcare providers is being aggregated and programs to analyze the data are being used to improve the quality, safety, and efficiency patient care.  Hospitals are examining treatment protocols and doctors are making better informed treatment decisions based on the previous care of thousands of similar patients.

As I stated earlier, the EHR requirement of HITECH does not specifically pertain to most orthodontists so why is this important to us?  Many orthodontists have or are now also in the process of converting their practices to paperless systems (without the assistance of the government money).  Several of the orthodontic specific software vendors offer cloud based systems and here is where “Big Data” and “The Cloud” come together.  The aggregation of data from hundreds or thousands of individual private orthodontic practices into cloud servers is beginning to open the door for data analysis (mining).  Just think about how valuable that information can be to our patients and practices.  Most of the research studies published in our journals today involve treatment samples of less than one hundred.  The biannual Journal of Clinical Orthodontics Practice Study generally relies on the input for a few hundred survey responders (out of a possible pool of more than 8,000). Wouldn’t it be helpful for us to know the most efficient type of Class II corrector based on the actual metrics collected from the previous care of thousands of patients treated in practices all across the country or the globe?  Wouldn’t the knowledge that your treatment times/appointments vary significantly from the national or regional averages be useful? There is little question that access to “Big Data” analytics will offer our profession the opportunity to improve treatment quality, safety and efficiency for our patients just as it is beginning to do for the other fields of healthcare.

What to Consider Before Buying an Intraoral Scanner

By Anthony M. Puntillo DDS, MSD


It is a New Year and I would guess that some of you may be considering new technology to add to your practice in 2014.  If you have read my previous posts, you know that an impressionless orthodontic practice is finally a reality.  The two pieces of equipment that are essential to achieve an impressionless practice are an intraoral scanner and a 3D printer.  I have been asked to discuss intraoral scanners at the upcoming AAO annual session in New Orleans.  As a prelude to that presentation, I thought I would highlight a few things to consider when deciding which scanning machine to purchase.  (To be clear I have no skin in this game.  I am not affiliated with or employed by any manufacture or supplier of these machines.  My practice began using a scanner more than 6 years ago.  We have used a few different models since that time and currently have three machines in use.)

The first major consideration before purchasing any machine is ACCURACY.  Before you buy any intraoral scanner you want to make sure that it will accurately capture the data you are looking to collect.  Some machines capture data by collecting still pictures and then use computer software to stitch the individual images together.  Other machines eliminate the computer ”guess work” involved with stitching and use real time streaming video feed technology to capture images.   Furthermore, some machines enable the user to select a high or low-resolution scan.  You should know that the method of data capture and scan resolution can have a direct affect on image accuracy as well the image capture time.

The second and seemingly most obvious consideration is PRICE.  I say seemingly obvious, because most of these machines have underlying costs associated with their purchase.  These “after sticker” expenses include support or warranty costs, supply costs (i.e. disposable wand tips), and costs to store your captured 3D models.  On the positive side, however, several of the companies also offer cost discounts or rebates on the use of associated products (i.e. clear aligners, orthodontic appliances, etc.).  Make sure to consider all of the costs, and discounts, before buying any machine.

The third and final thing to consider is EASE OF USE.  Ease of use actually is a broad term which includes several considerations such as: (1) Scan time- How long will it take for your assistants to capture an image? (2) File type- What type of file is created by the scan and is it a type that is accepted by the labs/companies you may want to send your scans to? (3) File storage and export – Are the scan files stored locally on your computers or in the cloud and how easy is it for your staff to transfer these files to a 3rd party for appliance fabrication? (4) Unit size and wand size- How portable is the unit? Can it be easily moved within an office or transported from office to office?  How heavy and or bulky is the scanning wand?  (5) Scanner software– Is the scanner software intuitive or will there be a significant learning curve for your staff? (6) Patient comfort- Does the machine require that the patients’ teeth be coated with a powder prior to scanning to improve accuracy?

In conclusion, the purchase of an intraoral scanner is a significant investment for most practices.  There are several things that should be considered when determining which machine is the right one for your practice.  I hope this quick review provides you with some insight that will be valuable in the consideration of your purchase.  If you would like to hear a more detailed discussion on this topic, I encourage you to attend my presentation in New Orleans and look forward to seeing you there.

The Basics – Improving Office Efficiency

By Anthony M. Puntillo DDS, MSD

Dr.-Puntillo-PictureIn my last few posts I have focused my discussion on intraoral scanners and 3D model printing. Currently, these technologies can allow a practice to eliminate impressions and truly represent the cutting edge when it comes to the clinical practice of orthodontics. However, I am constantly amazed by how many orthodontists are still not incorporating the most basic of technology into their practices. My partner and I recently acquired an orthodontic practice from an orthodontist approaching the end of his career. After spending the summer merging our systems, I thought I would take a step back and discuss a few of the systems every orthodontist should be using right now to improve the efficiency in their offices.

Computer scheduling with appointment templates
There is nothing more inefficient than a paper based scheduling system. Most orthodontic offices using paper based scheduling systems could comfortably eliminate at least one patient day per week and maintain the same level of productivity. Many orthodontists have purchased software management programs that already include scheduling modules. They simply have not taken the time to set them up and use them. If you do not feel comfortable setting up a computer based scheduling system yourself, hire a consultant. You will easily see a return on this investment in no time.

An automated scheduling confirmation system
This goes hand in hand with computer scheduling. The days of paying an employee to spend their day pulling charts and calling each of your patients to confirm their appointment for the following day should be over. If your schedule is computer-based you can easily incorporate programs that will not only electronically call, but also text and email appointment reminders to all of your patients. This will improve the efficiency and effectiveness of the process and your staff will be happy to give up this tedious task.

Digital radiography
I am going to stay out of the 2D/3D debate in this post. However, orthodontists still taking 2D radiographs should only be doing so digitally. The move to 3D machines has led to a secondary market for 2D digital machines at reasonable costs. You can easily pay for a 2D digital machine with the improved efficiencies that they provide i.e. no film or chemical costs, no staff time processing the radiographs, decreased need for retakes, overall improved image quality, and lower levels of radiation for your patients.

Digital charting
The amount of data generated for each patient we see is simply too great to efficiently manage using a paper based system. All hospitals and medical systems have been mandated to move to electronic health records and all orthodontists should do the same (see post by Dr. Kirt Simmons 3/2/2013). We have all received the call from a patient that has been out of treatment for a number of years that now is now experiencing some relapse. It is simply much easier to pull up the final records and treatment history that accurately documents the patient’s lack of cooperation from your electronic database, than it is to search your basement files or storage unit for the chart that has “disappeared.”

In short, while the impression-less practice will soon be the norm, it is now time to be paper-less and film-less. If you are not, it is costing you money. Change is usually uncomfortable and rarely easy. I am certain, however, that if you commit to incorporating these four basic systems into your practice, they will improve the orthodontic experience for you, your staff, and your patients.

Send Big Files Using Email

by Juan Martin Palomo DDS, MSD

Have you ever sent an email with pictures or radiographs attached only to see it returned with a message notifying you that the file exceeded the size limit? This happens because most email services have an attachment limit, and lately it seems that most of them agree that 25MB is it.  With the use of high resolution images, videos, and CBCT files (DICOM), this limit can be passed very easily. Fortunately there are options.

One way to transmit big files over the Internet is to share the file on a virtual drive (cloud) and provide the recipient with access to it. Services like Dropbox and Google Drive provide for this. If this is only one time transaction however and you want to keep it as easy as possible, there are several websites you can use to send large files directly to your recipient’s mailbox.  The web is filled with such options, usually free up to a certain size, and with a charge for really large files or storage capabilities (a common sales model called “Freemium”).  Some of the most popular, with their current free size limit, are: mailbigfile (2GB), largefilesasap (2GB), dropsend (2G), transferbigfiles (100MB), and hightail (former yousendit, 50MB).  There are many others, and most of them would allow the transfer directly from the browser without the need to install any program.  But as anything that is free, make sure you read the privacy terms, and that you use an encrypted option if transferring patient information.
At the same time that you transmit your file to the third-party site, notify your recipient in a separate email that you sent them a file and which program you used.  Otherwise the recipient may not recognize the company from where it arrives and think it is spam.  The recipient will receive an email from the file service which contains a message from you and a link which will allow the download of your files directly to the recipient’s computer.  Usually the information stays available for 10 or 20 days depending on the company, for the free transfers.  After this period expires, the files cannot be downloaded anymore.
Some programs limit the number of files that you can send.  A way out of this limitation is to place all files inside a folder and then compress the folder.  This will not only reduce its size, but also will turn the folder into a file, which is easier to select and transfer, since it only needs to be done once. Transmitting patients’ information via the Internet is a hot topic right now and one which the AAO Committee on Technology is currently exploring. Stay tuned to this blog and the main AAO website for more information.

Digital Retainers- Part II / Impression-Less Orthodontics

By Anthony M. Puntillo D.D.S., M.S.D.My last article received so many comments that I felt it warranted an extension of the discussion.  In the last twenty years of practicing orthodontics, our profession has gone paper-less, film-less, brace-less, wire-less, and coming soon….IMPRESSION –LESS.  Several companies now produce intraoral scanners and by all accounts they are selling them like hot cakes.  I want to reiterate that I have no financial interest in the sale of any of these machines.  However, if you have not bought one yet, my guess is most of you within the next five years will.  We would all love to eliminate our post-lunch gaggers.  But there are more tangible reasons why this trend is gaining momentum.

First and foremost the majority of our patients simply dislike having impressions taken.  Second, intraoral scans produce more accurate models for the fabrication of better fitting appliances. Third, intraoral scans eliminate the expense and wasted time associated with impression retakes and inaccurate model pours.  Fourth, intraoral scans allow for the elimination of alginate, PVS, and plaster expenses.  Finally, the move to digital patient records has been driven largely by the improved efficiency in handling, manipulating and transferring files, photos, and radiographs.  The same benefits also can be said for models.

Digital models have been around for several years.  I believe the recent mainstreaming of intraoral scanners and 3D printers has now pushed us to a “tipping point.”  Most orthodontists today using intraoral scanning, still digitally transfer their .stl files to the lab of their choice for fabrication of models or an appliance.  But what if you could simply hit “print” and create a bubble free model in your own lab?  The model could then be used to create an in-house retainer or indirect setup just as you would with a plaster model.   In fact, this is now possible.  Some may say that the costs of 3D model printers are too expensive.  Depending upon the size of their practice, you may currently be correct.  I say currently because most of us can remember the costs of color printers when they were first released.  Now they are very affordable and ubiquitous.  Why?  Because corporations such as Hewlett Packard discovered that they could sell the machines at a loss and make their profit on the sale of ink.  I submit to you it will not be long before the same dynamic occurs with 3D model printing.  And when this happens, we will all have one in our office and alginate and plaster will go the way of film-based photography.

Digital Retainers? Now at a Lab Near You

By Anthony M. Puntillo D.D.S., M.S.D.

It’s the middle of September and a patient you just debanded last month is enjoying her first year of college… and her new smile. After 24 months in orthodontic appliances, however, you are now both relying on her retainers to make sure her smile remains perfect. Unfortunately, her roommate has just accidentally stepped on that very same retainer and with campus 6 hours away from home she has no way of returning until Thanksgiving. Her parents assume that the impressions you took last month can be used to make a new retainer. Not wanting their orthodontic investment to be for naught, mom is calling your office requesting a new retainer with plans to ship it to her daughter. You are now in the unenviable position of delivering the bad news: the original model was damaged during the fabrication of the retainer and her daughter will need to return home for a new impression or attempt to schedule an appointment with an unfamiliar orthodontist closer to campus.

If you have been practicing orthodontics for any length of time, I have no doubt that the circumstances of this story sound familiar. The good news is that technology can now offer both you and your patients a better option. The increased movement toward digital models and intraoral scanners has not only improved our ability to store and manage our patients’ records, but it has also led several well-known commercial laboratories to add capabilities for processing these 3D digital files (STL- stereolithographic). Labs that have made the investment in the technology and equipment can now accept files over the internet and then use the digital data to create any number of well-fitting orthodontic appliances. Using STL files in this manner will save you the material, staff costs, and schedule constraints associated with taking a replacement impression. Furthermore, it saves the patient and parent the inconvenience of an additional trip to the office. So the next time a frantic parent calls requesting a replacement retainer ASAP, if you’re using digital models you can let them know you’ve got it handled. Simply forward the final records STL file to your favorite commercial lab and the replacement appliance will be on its way!

The Rise of Digital Orthodontics

By Anthony M. Puntillo D.D.S., M.S.D.


The Industrial Revolution of the mid seventeen hundreds to the mid eighteen hundreds ushered in numerous social, economic, and cultural improvements to the everyday lives of people of the day. Along with these improvements also came disruptive forces. Businesses had to adapt to the new way of doing things to stay competitive. The modern Technology Revolution is having similar beneficial and unsettling influences on our lives. Technology is being employed to improve the efficiency and effectiveness of virtually every aspect of our society. In the field of healthcare, we have seen the mapping of the human genome, improved medical imaging techniques, and robotic surgeries. Modern orthodontics has also incorporated digital technology to improve the accuracy of orthodontic diagnosis and treatment planning. As the quality of and methods for obtaining digital data have improved, so has the orthodontic specialist’s ability to use this data to improve the level of care he can provide his patients.
Two examples of recent technology that have changed the way orthodontists provide care are intraoral scanning devices and three-dimensional Cone Beam Computed Tomography or CBCT. There are several intraoral scanners currently available. These machines typically use visible light and an intraoral “wanding” procedure to create very accurate three-dimensional digital dental models. It is possible to use these 3D models not only to diagnose, but also to fabricate active clear plastic aligners and other treatment appliances. Invisalign, Insignia Clearguide, and ClearCorrect are examples of aligners systems created using digital models. SimpliClear is a digitally designed clear biomer wire fabricated with adjustments bends already in place. Insignia uses digital data obtained from an intraoral scan to create patient specific brackets and custom bracket placement jigs.

Patients can benefit from intraoral scanner technology by avoiding the impression procedure and by the improved accuracy of the appliances provided by their doctor. Orthodontists benefit by the elimination of costly impression materials and the improved efficiency of digital models. One shortcoming of intraoral scanners however is that the models they create are limited to supragingival tooth structures only.

Orthodontists are interested not only in the alignment of the crowns of the teeth, but also how the entire dentition (including the roots) are positioned relative to the supporting bone and facial structures. Using cone beam (CBCT) technology, orthodontists now have the tool they need to evaluate the alignment of the teeth in three dimensions. There are several CBCT machines and software programs currently available that enable orthodontists to view the teeth and supporting structures in all planes of space. This alone can improve orthodontists’ ability to diagnose and treatment plan to the benefit of their patients. There is now one system available (SureSmile) that incorporates the bone data from a CBCT scan into its digital 3D models. This allows orthodontists to make better treatment planning decisions regarding the roots of the teeth by revealing the limits of the supporting structures. The software can then follow the orthodontist’s “prescription” to robotically generate custom archwires containing every necessary tip, torque, and angulation needed to finish the treatment.
The rise of digital orthodontics has also spawned a resurgence in lingual orthodontics. The ability to digitally create custom brackets and wires (i.e. Harmony, Incognito, Suresmile QT, etc.) has made it easier for orthodontists to manage the intricacies of lingual treatment. Consequently, an increasing number of orthodontists are now offering lingual treatment options to their patients.
Technology has drastically increased the pace of change in our society. As orthodontists adapt and incorporate technology into their practices, their ability to provide better treatment for patients will also increase at an exponential rate. It is our challenge and obligation as orthodontic specialists to identify and evaluate new technologies, and when appropriate incorporate them into our patient care in a cost-effective manner.