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3D Scanning and 3D Modeling for Invisalign and Implants

September 19, 2020
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Posted By: Nulife Dental & Med Center

3D Scanning and 3D Modeling for Invisalign and Implants

 

Medical technology grows by leaps and bounds every day, and this statement is just as true in the field of dentistry. Dental care has become more advanced with scanning used as a detector for tooth decay. However, your dentist is using this technology for more than just looking for cavities. These scanning devices are used in making virtual models of your mouth for the purpose of dental prosthetics. More than 3 million Americans have dental implants, and over 8 million teens and adults have been Invisalign customers. In order to ensure a perfect fit for Invisalign, and to ensure implants are properly fitted, 3D scanning is the standard used by the dental industry when designing and creating dental prosthetics.

 

Used For Invisalign

 

For those patients seeking straighter teeth for cosmetic reasons or to correct an improper bite, 3D scanning and modeling is used in making Invisalign aligners. Align Technology's Invisalign brand enhances and corrects a smile which does wonders for your self-esteem. What some people don’t realize is that it’s important to correct a bad bite. Fixing the problem prevents dental deterioration and other oral health issues. It’s very important to get the aligners correctly made and fitted for your mouth. Awkward dental impressions or trays are no longer used for creating a treatment plan. 3D scanning is the most accurate way of providing aligners that will work best in an Invisalign treatment plan. 

 

Your dental professional will create a 3D image of your teeth using an iTero scanner, which is from the makers of Invisalign. The iTero Element Scanner is used to ensure the correct and perfect aligner is tailored for you. Everyone has a different gum line, and iTero scans ensure a perfect fit. 

 

Used For Implants


Dental implants are the closest you can get to natural teeth and are for those people who have lost a tooth or teeth due to decay or injury. They allow you to smile, eat, talk, and laugh without worry. Implants are made from titanium alloy, which is similar to what is used for knee replacements. The artificial tooth is placed in your jawbone by a connector and is made to bond with your natural bone. Because implants are a substitute for natural teeth, and because they are meant to be permanent as opposed to dentures, it’s incredibly important to design and fit the artificial tooth with care and precision. 2D scanning was once the way the implant was designed, but it was often inaccurate. 3D scanning and 3D modeling is the best technology for creating and placing implants The iTero Element scanner is used for implant modeling and placement and not just for Invisalign products. The iTero scanner is a common appliance used for designing other dental restoration products.

 

What is 3D Scanning?

 

3D imaging is slowly becoming the standard when it comes to aligners and other orthodontics. It allows dentists to digitally construct a model of your teeth and skull in 3D. No molds, plaster, or trays are used in this process. This unique perspective allows dental professionals to interact with the model and anticipate any difficulties, to effectively diagnose problems, and prescribe the treatment that is necessary. 3D scanning is commonly used for cosmetic and reconstructive purposes such as implants, crowns, and bone grafts, but as mentioned, it is also used to create 3D models to customize aligners for teeth straightening and to create an orthodontic treatment plan. 

 

How Does 3D Scanning and Imaging Work?

 

The dental imaging process begins by scanning the lower half of the face to create the image. The most common and most reliable method of executing this is by a cone-beam computed tomography machine, or CBCT machine. Small beams of radiation are used to scan the mouth, which results in a digital image. These pictures or images are compiled and converted into a 3D model for dental treatments. 

 

A 3D image made with the use of a CBCT machine can be used for simple diagnostics, showing angles of the teeth that may not have been visible with a 2D device. However, CBCT produced dental images can also be used for more complicated diagnostics, such as identifying degenerative conditions and potential issues in the future. In addition to using 3D dental imaging for diagnostics, it can be integrated with digital impressions of teeth. Technology enables a dentist or oral surgeon to take these impressions with excellent accuracy in order to create dental restorations. This allows for a seamless and near perfect plan for treatment.

 

 

 

Advantages of Using a Scanner

 

Because of the high precision of the 3D scanner, there are several advantages it has over traditional 2D imaging methods:

 

Reduced radiation: Dental 3D imaging reduces the amount of radiation the patient is exposed to since they require very little time and pinpoint specific areas of the teeth and mouth.

 

Efficiency: Utilizing 3D scanners is not as time consuming as taking conventional impressions. 

 

Three dimensions: This new technology is able to create 3D models, which offers more information than the traditional 2D images. 

 

Effective technology: The 3D data from multiple scans can be combined to produce incredibly accurate 3D images. 

 

Accurate: These images offer greater detail compared to using molds to make a model. Dentists are able to see pathologies, infections, nerves, and more. Dental impressions of the past made with plaster couldn’t offer that information.

 

Non-invasive: There’s no need to utilize messy molds or trays. The entire head or a specific region of the mouth can be scanned.

 

How is the Imaging Used?

 

Dentists can more effectively treat patients when they digitize the workflow. An example would be if a patient requires an implant, their mouth can be scanned by a 3D scanner or possibly two different scanners. A CAD model of the patient’s mouth is generated and a digital model for the implant is created with the CAM software. The model is sent to a dental lab to be designed and constructed for use within a few days. This helps to make the process quicker than before. And with access to the digital model before surgery, the dentist or orthodontist can get familiar with the patient’s mouth before the surgery takes place. This is a huge advantage in saving time and ensuring accuracy. This digital workflow can be used for many procedures and dental restorations. 

 

There is more than one type of 3D dental imaging used by clinicians and oral surgeons. Let’s go over the three main types and discuss how they improve workflow.

 

Three Main Types of 3D Scanners

 

Cone Beam Computed Tomography

 

CBCT is short for Cone-beam computed tomography. Using small beams of X-ray radiation, they rotate on a 360-degree axis while taking pictures of the mouth and face. The process is very quick and non-invasive since it only needs to rotate once around your head while you stand still. It has a limited field of view, which limits radiation exposure. After the images are taken, they are combined to make a model of the mouth. CBCT is also used today in mammography because it is more effective and safer than CT scans or an MRI. 

 

Intraoral Scanner

 

The intraoral scanner (IOS) is a handheld device used in dentistry for capturing direct optical impressions. They are basically cameras that aid in creating a map for constructing a 3D surface model. Most often, these scanners exist in the form of a “wand”, which the operator inserts into a patient’s mouth. One of the most common and versatile 3D scanners is the itero Element. It’s perfect for any practice involved in digital dentistry. It's designed to connect with orthodontic labs, custom crowns, bridges, veneers, implant abutment, and chairside milling. It also has easy connectivity to CAD and CAM software.

 


 

More About Digital Dentistry 

 

Technologies such as digital intraoral scanning (also known as digital impressions) and designing framework with CAD software are enhancing the quality of implant therapy and improving restoration results. Patient anatomy can be understood with remarkable detail through the digital collection of 3D data, and procedures can be virtually planned by using this CAD software. 

This 3D technology has also made 3D printing possible. The availability of printed veneers, crowns, copings, night guards, and bridge models in an extremely short amount of time has made visits to the dentist and dental care more affordable and efficient for the patient. Plaster models that have been made and stored in a dentist's office can be copied by the 3D printer so the casts no longer have to be stored. 


 

Dentistry Today

 

Dentists and orthodontists know that 2D technology is on its way out. Digital dentistry is the way of the future with 3D scanning devices. 3D services can be found in most any dentist’s office with cone beam computer tomography being quite common. It gives a great image of what’s going on inside your mouth. The efficiency helps in providing a better patient experience while at your dentist's office. With the increasing popularity and technical advancement of dentistry, treatment plans can be created quickly and with more certainty than ever before. 


 

 

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