Digital Complete Denture Impression Workflow: Optical Border Molding and Jaw Relation Recording

Aug 30, 2026

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Digital complete denture workflows have become one of the most discussed applications of intraoral scanning in recent years. Traditional multi-step edentulous impression and jaw-relation procedures are being streamlined through digital techniques.

This practical guide outlines a modern digital complete-denture process, covering optical border molding, jaw relation recording, and subsequent design and manufacturing.

Typical Digital Complete Denture Workflow

Step 1: Initial Evaluation and Existing Denture Scanning

If the patient has existing dentures, scan both the tissue and polished surfaces.

Assess residual ridge condition, mucosal thickness, and current jaw relation.

Determine vertical dimension and centric relation as a starting reference.

Step 2: Custom Tray Fabrication

Fabricate a custom tray from a preliminary impression or via 3D printing.

Apply border-molding material to the tray borders.

Step 3: Optical / Functional Border Molding

Apply border-molding material (silicone or light-cured resin) to the custom tray borders.

Seat the tray and have the patient perform functional lip, cheek, and tongue movements.

After molding, either scan the tray intraorally while seated or remove it and scan the tissue surface.

Some advanced systems support direct optical border molding, allowing the entire border capture to be completed in approximately five minutes under ideal conditions.

Step 4: Jaw Relation Recording

Use a Gothic arch tracer to record mandibular movement paths and locate centric relation.

Alternatively, employ digital jaw-relation devices (facial scanning combined with mandibular motion tracking).

Record vertical dimension, centric relation, protrusive, and lateral movements.

Use a silicone bite registration as an additional verification aid when needed.

Step 5: Detailed Soft-Tissue Scanning

Maxilla: residual ridge, palatal vault, hamular notches, and vibrating line.

Mandible: residual ridge, retromolar pads, sublingual caruncles, and internal/external oblique ridges.

Capture the entire border seal area (vestibular depth and buccal shelf).

Scan any jaw-relation recording devices in place.

Step 6: Digital Design and Manufacturing

Import the data into CAD software for artificial tooth arrangement and base design.

3D-print a try-in base for clinical evaluation of aesthetics, phonetics, and occlusion.

Fabricate the final denture by 3D printing or milling (PMMA base with resin or composite teeth).

Clinical Advantages

The full process can often be completed in a single day or within 2–3 visits.

Digital data can be archived for easy remakes or future adjustments.

Patient comfort is significantly improved compared with traditional multi-step impressions.

How the Aident Digital Workflow Supports Complete Denture Cases

Fully edentulous scanning remains one of the more demanding applications for any conventional intraoral scanner. The Aident AI-30 and the broader Aident ecosystem can still play important supporting roles:

AI-30 provides ≤10 μm accuracy and 20–25 mm ultra-deep depth of field for soft-tissue and residual ridge capture when conditions allow.

Powder-free true-color imaging and intelligent anti-fog heating improve visibility in moist environments.

Lightweight design (156–198 g) aids careful, low-pressure scanning of mobile mucosa.

Open STL/PLY/OBJ output integrates smoothly with major CAD systems.

Aident laboratory scanners and dental 3D printers enable efficient production of custom trays, try-in bases, and final denture components, supporting a complete Scan → Design → Print pathway.

For the most complex fully edentulous implant or high-precision complete denture cases, many clinicians still combine digital data with traditional verification methods or specialized systems.

Deliver More Efficient Digital Complete Dentures

A structured digital workflow that incorporates functional border molding and accurate jaw relation recording can significantly shorten treatment time and improve patient experience. Pair clinical best practices with reliable scanning and 3D-printing technology for the best results.

Explore the Aident AI-30 Intraoral Scanner and complete digital dentistry solutions:
https://www.aident3d.com/3d-scanner/intraoral-scanner/

Request a free demonstration, technical brochure, or personalized quote:
https://www.aident3d.com/contact-us

Digital complete dentures start with accurate soft-tissue data and a robust end-to-end workflow - choose technology that supports both clinical reality and efficient production.

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