Why Stereolithography Is The Most Commonly Used Type of 3D Printing In The Dentistry Field

June 17, 2020

Three-dimensional (3D) printing technology has come a long way in redefining the Dental Industry over the years. It is a technology that has proven to be of great assistance in recreating quality dental cast models from patient’s teeth and improving the cost-efficiency of dental laboratories and dental clinics all over the world.

With the rise in demand for 3D technology, innovations are continuously produced and developed by manufacturers, which can be challenging for interested dental practitioners in terms of keeping up with the latest trends.

However, even with the multiple variants of 3D printing available, one process is highly favored by clinicians and dental lab technicians everywhere: Stereolithography.

What Is Stereolithography?

It is one of many processes used to create 3D printed objects from liquid plastic.  The liquid is transformed into a solid object based on a model initially created and designed through a Computer Assisted Design (CAD) software, before being transferred to an appropriate 3D printer.

2 Types of Stereolithography

  1. The Stereolithography Apparatus (SLA) consists of a container with a liquid photosensitive resin, a model-building platform, and a curing ultraviolet laser that is used to draw a pre-programmed design onto the surface of the photopolymer vat.
  2. Digital Light Projection (DLP) are built similarly to SLA printers.  It has a resin tank with a transparent bottom and a build platform that descends into the resin tank to create parts upside down.

The main difference between the two is the light source used by both machines. While SLA uses a single laser, a DLP printer uses a digital projector screen to flash an image of a layer across the entire platform.

Why Do Dental Clinics Prefer Stereolithography?

Compared to the other process in 3D printing, Stereolithography provides a more accurate and detailed reproduction that makes 3D modeling and printing a valuable support tool in oral care.

For more information about top of the line 3D printing technology, reach out to Benco Dental for your 3D printing concerns.