Short answer: Digital dentistry is the use of technologies such as intraoral scanners, digital X-rays and tomography, computer-aided design and manufacturing (CAD/CAM) and 3D printers in the diagnosis, planning and manufacturing stages. Instead of traditional impression materials, a digital scan is taken, the treatment is planned on a computer, and restorations or clear aligners are produced based on this data. The aim is a more predictable and comfortable treatment process.
In recent years, dentistry has gone through perhaps its fastest transformation thanks to digital technologies. Minutes spent waiting with a mouthful of impression material have been replaced by scans that take a few minutes, and plaster models by three-dimensional images that can be rotated on a screen. Digital dentistry is the general name for this transformation, which extends from diagnosis to treatment planning and custom manufacturing. These technologies do not replace the dentist's knowledge and experience; however, they can make planning more detailed, communication clearer and manufacturing more consistent.
In this article we explain the basic components of digital dentistry, how a digital impression is taken with an intraoral scanner, where CAD/CAM and 3D printers are used, the role of digital planning in clear aligner treatment and the benefits for patients.
What is digital dentistry?
Digital dentistry is the use of computer-aided imaging, design and manufacturing tools in dental practice. It does not refer to a single device but to a workflow whose parts are connected to one another.
The main components of this workflow are:
- Digital imaging: Detailed examination of the teeth, roots and bone with digital X-rays and three-dimensional cone beam computed tomography (CBCT)
- Intraoral scanning: Creating a three-dimensional model of the teeth and gums using an optical method
- Digital photography and analysis: Assessing facial and smile proportions
- Computer-aided design (CAD): Planning restorations, surgical guides or orthodontic movements in software
- Computer-aided manufacturing (CAM) and 3D printing: Bringing the designed parts to life through milling or additive manufacturing
When these components come together, the data taken from the mouth is processed directly in a digital environment, planned and sent to production.
How do an intraoral scanner and digital impression work?
An intraoral scanner is a handheld device whose tip resembles a small camera; it takes thousands of images of the tooth surfaces and creates a three-dimensional digital model within a few minutes. This model is the digital equivalent of the plaster model obtained with traditional impression material.
The main features of a digital impression compared with a traditional impression are:
- Comfort: Because no mouthful of impression material is used, it is more comfortable for patients with a strong gag reflex.
- Instant checking: Missing or faulty areas are seen on the screen immediately, and only that area can be rescanned.
- Visualization: Patients can see their own teeth on the screen in three dimensions, which makes it easier to explain problems.
- Fast transfer: Digital data is sent electronically to the laboratory or production center without waiting for a courier.
- Archiving: Scans can be stored, and changes over time can be compared.
Digital impressions can be used in many treatments such as crowns, bridges, inlays, implant-supported prostheses, night guards and orthodontic appliances. That said, in some complex prosthetic cases the dentist may prefer to use traditional and digital methods together.
Where are CAD/CAM and 3D printers used?
CAD/CAM systems and 3D printers make it possible to manufacture dental restorations, models and appliances designed in a digital environment with high precision. In the CAD stage, the restoration is designed in software; in the CAM stage, this design is manufactured.
Manufacturing by milling
Zirconia, glass-ceramic or composite blocks are carved in computer-controlled milling machines into crowns, bridges, inlays and onlays. With some systems, small restorations can be manufactured and placed on the same day.
Manufacturing with a 3D printer
3D printers manufacture by adding material in thin layers on top of one another. Their main uses in dentistry are:
- Working and orthodontic models
- Surgical guides used in implant surgery
- Temporary crowns and bridges
- Night guards and some protective appliances
- Prototypes of complete and partial denture frameworks
In implant treatment, tomography data and an intraoral scan can be combined to plan the implant's position on a computer. A surgical guide manufactured according to this plan helps place the implant in the planned position in a more controlled way.
How is digital planning done in clear aligner manufacturing?
Clear aligner treatment relies on a digital workflow from start to finish: the teeth are scanned, the movements are planned in software and custom aligners are produced for each stage. At our clinic, clear aligner treatment is provided with the Invisalign system.
- Digital records: A three-dimensional model of the teeth is created with an intraoral scanner; photos and X-rays are taken.
- Treatment planning: The orthodontist plans in Invisalign's ClinCheck software in which order and how far the teeth will move. The positions of the attachments and, if needed, the amount of interproximal reduction are also determined at this stage.
- Simulation: The planned movements can be viewed as a three-dimensional animation. This simulation shows the goal of the treatment; however, since biological response varies from person to person, it is not a promise of an identical result.
- Manufacturing: According to the approved plan, a model for each stage is produced with a 3D printer, and the aligners are formed on these models.
- Follow-up: If necessary, new scans can be taken during treatment and the plan updated.
If you are curious about how the treatment progresses step by step, you can visit our clear aligner treatment page, and for general information about the systems, our article on clear aligner brands.
What are the benefits for patients?
The most important contribution of digital dentistry for patients is that treatment becomes clearer, more predictable and often more comfortable. The technology itself is not the goal but a tool for reaching a well-planned treatment.
- Better communication: By seeing their problems and treatment options on the screen, patients can make more informed decisions.
- Detailed planning: Three-dimensional data provides a more comprehensive preliminary assessment, especially in areas such as implants and orthodontics.
- Comfort: For most patients, a digital impression is more comfortable than traditional impression material.
- Consistent manufacturing: Manufacturing based on digital data supports the fit of restorations.
- Time: For some procedures, the number of appointments and laboratory times can be shortened.
- Records and follow-up: A digital archive makes it easier to track changes over the years.
It is also important to know the limits of digital tools. No matter how advanced the images and software are, an accurate diagnosis and treatment decision rely on the dentist's examination, clinical experience and the patient's individual characteristics. Digital simulations are a planning tool; they are not a document that confirms the treatment outcome.
What does digital smile design mean?
Digital smile design is the planning on a computer of the length and shape of the teeth and their relationship with the lips, using facial photos and intraoral scans. Especially for patients considering veneers, crowns or orthodontic alignment of the front teeth, it helps to see in advance how the planned change will harmonize with the face. In some cases, this design can also be tried in the mouth as a temporary mock-up. This way, the patient and the dentist can agree on a shared goal before moving on to permanent treatment.
Digital examination in Ankara
If you are considering an assessment for tooth alignment, missing teeth or the need for a prosthesis, we can review your current situation together using digital scanning and imaging during the examination. At our clinic in Park Oran Ofis, next to Panora Mall in Oran, Çankaya, a digital workflow is used in many treatments, including Invisalign planning, and the options suitable for you are explained using the images on the screen.
Frequently asked questions
Is intraoral scanning painful?
No, intraoral scanning is generally a procedure that does not cause discomfort. Only a light touch is felt as the tip of the scanner is moved over the teeth. Because no impression material is used, it is also more comfortable for people with a strong gag reflex.
Can digital impressions be used in every treatment?
Digital impressions can be used in many treatments such as crowns, bridges, implant-supported prostheses, night guards and clear aligners. In some complex prosthetic cases, the dentist may prefer to use traditional and digital methods together.
Does the image in the clear aligner simulation show the treatment result?
The simulation shows the planned tooth movements and the goal of the treatment. However, since the biological response of the teeth can vary from person to person, it is not a promise of an identical result. If necessary, the plan is updated during treatment.
Are parts produced with a 3D printer durable?
3D printers use materials made for dentistry that are suitable for the intended purpose. Parts such as surgical guides and models are produced with the precision needed. For permanent restorations, ceramic or zirconia produced by milling is usually preferred.
