Jaw Relation Recording With Facial Scan for Digital Dentures

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Solution Overview

Problem

Existing denture fabrication processes require multiple dental visits, causing inconvenience and burden to patients, and do not allow for simultaneous acquisition of jaw relation and esthetic positioning of anterior teeth during the first visit.

Innovation Solution

A jaw relation recording apparatus comprising upper and lower jaw plates with impression material and adjustable anterior handles for incisal position recording, and optional anterior guide members for esthetic positioning, enabling simultaneous recording of vertical dimension, centric relation, and occlusal plane at a single visit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional multi-visit denture fabrication process is used, then each step can be performed with dedicated equipment and materials, but the number of patient visits increases to five or more causing inconvenience and burden

Engineering Contradiction:
Improvedenture fabrication efficiencyVSAvoidnumber of patient visits
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent combines multiple denture fabrication steps (impression taking, jaw relation recording, vertical dimension recording, centric relation recording, and occlusal plane recording) into a single integrated apparatus that can be used simultaneously during the first dental visit, eliminating the need for separate visits for each procedure

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The jaw relation recording apparatus is designed with multi-functional components that can perform multiple recording functions (vertical dimension, centric relation, occlusal plane) using a single device structure, allowing all procedures to be completed in one visit

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If traditional separate procedure approach is used, then each recording can be performed with specialized equipment, but jaw relation and esthetic positioning cannot be determined simultaneously at the first visit

Engineering Contradiction:
Improvejaw relation recording accuracyVSAvoidnumber of separate devices required
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent integrates multiple recording functions (jaw relation, vertical dimension, centric relation, occlusal plane) into a single apparatus structure, where components like the anterior handle, horizontal bar, and recording screws work together in one device to perform all measurements simultaneously

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The apparatus is designed as a universal device that can perform multiple recording functions through its various components, eliminating the need for separate specialized equipment for each procedure while maintaining measurement precision

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4691419A1Inter-jaw relationship recording device for manufacturing digital denture
Publication Date: 2026.02.11 PNUADD CO LTD
  • EP4691419A1 patent drawingFigure 1
  • EP4691419A1 patent drawingFigure 2
  • EP4691419A1 patent drawingFigure 3~4

AI summary

Disclosed is a jaw relation recording apparatus for manufacturing a digital denture, wherein the apparatus can determine an esthetic position of an anterior tooth part by using a facial scanner, as soon as completing acquisition of a jaw relation required for denture manufacture at the time of a patient' s first visit to a hospital, and can provide an accurately manufactured denture on the same day or at the time of second visit to the hospital. A jaw relation recording apparatus for manufacturing a digital denture according to an aspect of the present invention may include: an upper jaw plate having an impression material provided on an upper surface thereof so as to be able to acquire an impression of upper jaw gums; a lower jaw plate having an impression material provided on a lower surface thereof so as to be able to acquire an impression of lower jaw gums; and an anterior guide member which can be detachably coupled to a front end of the upper jaw plate, enables a lip index relation to be acquired after being coupled to the front end, and enables an esthetic position of anterior teeth to be reproduced through a facial scanner in a state of being coupled to the front end.