Transferring dentofacial analyzer into analog workflow with CAD digitization: A dental technique

Abstract

With the transition to digital workflows, moving from a digital platform to an articulator for laboratory procedures such as adding porcelain or luting titanium abutments is sometimes required. This report describes a technique to facilitate the transfer of jaw-relation records to a digital mounting template. Once digitally mounted, the casts can be printed with mounting plates attached to the temporomandibular joints in the appropriate orientation. They can then be placed in an articulator and used for layering porcelain or luting titanium abutments for screw-retained restorations.

Digital articulation has been in development for many years. As the technology advances, it is incorporated into more and more dental computer-aided design (CAD) programs. Digital workflows can often be completed without the use of physical casts. This can be accomplished when the entire restoration is fabricated by using computer-aided manufacturing (CAM) technique. However, physically articulated casts are still needed in some clinical and laboratory situations. It is no less important today to have casts, whether digital, cast and articulated, or printed from digital scans, articulated by using appropriate jaw-relation records. Physical casts may also be needed for occlusal adjustments, luting titanium abutments, adding occlusal or incisal porcelain, prosthetic preparation for computer-guided implant surgery, or simply identifying a situation not easily seen on the computer screen.

Methods for digital facebow transfers that incorporate new digital techniques have been identified, but few have adapted the long-standing techniques that are prevalent in dental practice. Many dental design programs incorporate digital articulators, but the authors are unaware of an inexpensive and straightforward way to relate a facebow transfer to the digital articulator without a facial scan or cone beam computed tomography scan. The presented technique offers a way to transfer the casts to a physical semiadjustable articulator for the finalization of restorations and appliances in the laboratory while still being in a proper relationship to the hinge axis.

Technique

Creating a calibrated digital mounting template

Jan 12, 2020 | Posted by in Prosthodontics | Comments Off on Transferring dentofacial analyzer into analog workflow with CAD digitization: A dental technique
Premium Wordpress Themes by UFO Themes