Artificial Anterior Tooth Furrows for Naturalistic Color and Translucency

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional artificial anterior teeth lack a natural-looking appearance due to uniform material composition, resulting in less lifelike color and opacity/translucency, especially when formed using single materials or multi-layered compositions that are complex and costly.

Innovation Solution

An artificial anterior tooth design featuring furrows on both labial and lingual surfaces, with corresponding locations and varying thicknesses, combined with non-uniform composition distribution, to mimic the microstructure of natural teeth, enhancing light interaction and color variation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional artificial anterior teeth are made with uniform material composition and cross-sectional thickness, then structural strength is ensured, but the appearance becomes uniform and less lifelike

Engineering Contradiction:
Improvestructural strengthVSAvoidnaturalistic appearance
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent introduces furrows at specific locations on the labial and lingual surfaces of the artificial tooth, creating localized variations in thickness and light interaction. These furrows are positioned to mimic natural tooth anatomy, with specific depths and orientations that create realistic light scattering patterns while maintaining overall structural integrity through the bulk material.

Inventive Principle:
Principle #3Local quality

2Ease of manufacture

If multi-layered compositional materials are used to achieve natural-looking appearance, then color and translucency variation improves, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvenaturalistic appearanceVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent divides the tooth structure into distinct functional zones through furrow creation, separating the enamel surface layer from the underlying dentin structure. This segmentation is achieved through a single-material approach where geometric features (furrows) create optical segmentation rather than requiring multiple material layers, thereby reducing manufacturing complexity while achieving naturalistic appearance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent varies physical parameters such as furrow depth, width, and orientation to create different light scattering and absorption characteristics across the tooth surface. By changing geometric parameters rather than material composition, the invention achieves color and translucency variation without requiring multi-layered materials, thus avoiding increased manufacturing complexity.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design achieves a more naturalistic appearance by regulating light scattering and absorption, providing variable translucency and color, while maintaining structural integrity and manufacturability.

Implementation Method 1

regulating light scattering and absorption

Methodology Applied
Scientific EffectLight scattering: Scattering

Implementation Method 2

regulating light scattering and absorption

Methodology Applied
Scientific EffectLight absorption: Absorption (EM radiation)

Data Source

PatentUS12427003B2Artificial anterior tooth for naturalistic appearance
Publication Date: 2025.09.30 DENTSPLY SIRONA INC
  • US12427003B2 patent drawing
  • US12427003B2 patent drawing
  • US12427003B2 patent drawing

AI summary

An artificial anterior tooth having a more naturalistic or lifelike appearance for use in the design and/or production of a dental prosthesis and/or dental restoration is provided. The lingual-facing surface of an artificial anterior tooth is provided with a plurality of furrows in predetermined locations on the lingual-facing surface to correspond with a plurality of furrows on the labial-facing surface in predetermined locations on the labial-facing surface, so as to impart variable, lifelike color and/or translucency properties throughout the tooth.