3D Scanning and Measurement

The first step to achieving lasting and successful results in dentistry is an accurate and comprehensive diagnosis. Traditional X-rays and physical impression methods can provide sufficient results in many cases. However, for complex jaw structures, implant planning, and aesthetic dental applications, these methods may be inadequate for detailed assessment. This is where 3D dental scanning and digital impression systems come into play, enabling clearer and safer treatment planning. These systems, operating with millimeter, or even micron-level precision, image the teeth, jaw bones, and surrounding tissues in three dimensions. This makes diagnostic and treatment processes faster, safer, and more predictable. Orthodontist Dentist Emin Serhat Arıkan answered frequently asked questions about 3D dental scanning systems, one of the important technologies in modern dentistry.

What Are 3D Dental Scanning Systems?

3D dental scanning systems are advanced imaging technologies that enable the three-dimensional modeling of intraoral and jaw structures in a digital environment. These systems provide dentists with detailed analysis capabilities for both hard tissues (bone, teeth) and soft tissues. The two main 3D scanning technologies most commonly used in dentistry today are:

Cone Beam Computed Tomography (CBCT)

• Provides detailed imaging of jaw bones, sinus cavities, nerve canals, and other anatomical structures.
• Plays a critical role especially in implant planning, surgical guide creation, and oral and maxillofacial surgery applications.
• Offers high-resolution three-dimensional images with a lower radiation dose compared to traditional tomography.

Digital Intraoral Scanners

• Scans tooth surfaces and soft tissues contactlessly and with high precision.
• The acquired data is converted into digital file formats such as STL.
• Widely used in veneer, clear aligner (Invisalign etc.), smile design, and prosthesis applications.

These digital data are directly integrated with CAD/CAM systems, eliminating the need for traditional impression methods and ensuring that treatment processes are carried out more quickly, precisely, and predictably.

How Does 3D Oral Scanning Technology Work?

3D intraoral scanners detect the surface form of teeth and surrounding soft tissues via special light and optical sensors, transferring them to a digital environment. The scanning process is completed in a short time and offers a comfortable experience for the patient. The 3D oral scanning process consists of the following stages:

Intraoral Check: The clinician checks the area to be scanned and clarifies the view.

Digital Scan: Thousands of data points are collected as the handheld scanner is moved over the teeth.

3D Model Creation: Data is converted into a three-dimensional digital model within seconds.

Treatment Planning: The created model is used in implant, veneer, orthodontics, or aesthetic planning.

What Are the Advantages of 3D Dental Scanning Systems?

3D dental scanning systems offer digital solutions that enhance both patient comfort and the accuracy of the treatment process in modern dentistry. Compared to traditional impression methods, they operate faster, more precisely, and are fully compatible with digital infrastructures. 3D dental scanning systems stand out with the following advantages:

• Traditional impression materials such as silicone or plaster are not used. This provides a more comfortable impression-taking process, especially for patients with a gag reflex.
• The digital scanning process is completed in most cases within 2–5 minutes. Missing or erroneous areas can be instantly detected and re-scanned.
• Thanks to micron-level accuracy, prepared restorations show high compatibility with the oral structure, and the need for try-ins is reduced.
• The acquired digital data can be directly transferred to computer-aided design and manufacturing (CAD/CAM) systems. This minimizes manual errors and loss of time.
• Patient scan data can be safely stored in a digital environment. Thus, there is often no need to take new impressions in subsequent treatment processes.

In Which Treatments Is 3D Dental Scanning Used?

3D dental scanning technology is used in dentistry not only for impression taking, but also to create personalized, safe, and predictable treatment plans. Thanks to digital models, treatments can be planned in a more controlled, aesthetic, and long-lasting manner. The most common treatment areas where 3D dental scanning is used are:

Implant Treatments: The bone volume, nerve canals, and anatomical structures in the area where the implant will be placed are analyzed in three dimensions. This ensures correct implant positioning and reduces surgical risks.

Orthodontic Treatments: Digital tooth models are created for clear aligners (Invisalign etc.) and traditional orthodontic treatments, allowing personalized treatment plans to be prepared.

Zirconium and Porcelain Veneers/Crowns: Tooth measurements are taken digitally; aesthetic, natural-looking, and oral structure-compatible restorations are produced.

Smile Design:  The size, position, and harmony of the teeth with the face are digitally analyzed. Potential results can be visually presented to the patient before treatment begins.

Oral and Maxillofacial Surgery: Impacted teeth, bone structure, and nerve relationships are evaluated in three dimensions, allowing surgical procedures to be planned more safely.

Teeth Whitening Planning: The current color and surface structure of the teeth are analyzed to achieve more personalized results.