Artificial Posterior Teeth Positioning via Tooth Block Geometry

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Solution Overview

Problem

The existing methods for positioning artificial posterior teeth on edentulous or partially edentulous jaw models are inefficient and prone to errors, leading to instability of the dental prosthesis during mastication due to individual positioning of teeth without consideration for geometric relationships.

Innovation Solution

Combining multiple artificial posterior teeth into a tooth block with fixed geometric relationships, allowing for simultaneous positioning based on geometric parameter assignment between the tooth block and the jaw model, facilitating quicker and more accurate placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If several artificial posterior teeth are combined to form a tooth block with fixed geometric relationships, then positioning accuracy and productivity are improved, but device complexity increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidtooth block complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Multiple artificial posterior teeth are combined into a single tooth block unit with fixed geometric relationships between them. This merging approach allows the entire set of posterior teeth to be positioned simultaneously as one unit, ensuring consistent geometric parameters and eliminating individual positioning errors while maintaining the complexity within a standardized modular component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The geometric parameters of the tooth block are pre-established and fixed before positioning on the jaw model. This preliminary definition of geometric relationships between teeth ensures that when the tooth block is positioned, all teeth automatically achieve correct spatial relationships without requiring individual adjustment, thereby improving positioning accuracy.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If several artificial posterior teeth are combined to form a tooth block, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improvepositioning speedVSAvoidtooth block complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Multiple artificial posterior teeth are combined into a single tooth block unit with fixed geometric relationships between them. This merging approach allows the entire set of posterior teeth to be positioned simultaneously as one unit, ensuring consistent geometric parameters and eliminating individual positioning errors while maintaining the complexity within a standardized modular component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The geometric parameters of the tooth block are pre-established and fixed before positioning on the jaw model. This preliminary definition of geometric relationships between teeth ensures that when the tooth block is positioned, all teeth automatically achieve correct spatial relationships without requiring individual adjustment, thereby improving positioning accuracy.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If individual posterior teeth are positioned separately, then device complexity is reduced, but positioning accuracy and prosthesis stability deteriorate

Engineering Contradiction:
Improvepositioning process simplicityVSAvoidtooth positioning accuracy
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

Multiple artificial posterior teeth are combined into a single tooth block unit with fixed geometric relationships between them. This merging approach allows the entire set of posterior teeth to be positioned simultaneously as one unit, ensuring consistent geometric parameters and eliminating individual positioning errors while maintaining the complexity within a standardized modular component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The geometric parameters of the tooth block are pre-established and fixed before positioning on the jaw model. This preliminary definition of geometric relationships between teeth ensures that when the tooth block is positioned, all teeth automatically achieve correct spatial relationships without requiring individual adjustment, thereby improving positioning accuracy.

Inventive Principle:
Principle #10Preliminary action

4Device complexity

If individual posterior teeth are positioned separately, then device complexity is reduced, but prosthesis stability deteriorates

Engineering Contradiction:
Improvepositioning process simplicityVSAvoidprosthesis stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

Multiple artificial posterior teeth are combined into a single tooth block unit with fixed geometric relationships between them. This merging approach allows the entire set of posterior teeth to be positioned simultaneously as one unit, ensuring consistent geometric parameters and eliminating individual positioning errors while maintaining the complexity within a standardized modular component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The geometric parameters of the tooth block are pre-established and fixed before positioning on the jaw model. This preliminary definition of geometric relationships between teeth ensures that when the tooth block is positioned, all teeth automatically achieve correct spatial relationships without requiring individual adjustment, thereby improving positioning accuracy.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9974632B2Method for positioning artificial posterior teeth
Publication Date: 2018.05.22 AMANN GIRRBACH
  • US9974632B2 patent drawing
  • US9974632B2 patent drawing
  • US9974632B2 patent drawing

AI summary

Method for positioning artificial posterior teeth (1, 2, 3, 4, 19, 20, 21, 22) on an entirely edentulous or at least partially edentulous jaw model (5, 6), wherein several artificial posterior teeth (1, 2, 3, 4, 19, 20, 21, 22) are combined to form at least one tooth block (7), wherein the artificial posterior teeth (1, 2, 3, 4, 19, 20, 21, 22) in this tooth block (7) are arranged in a fixed geometric relationship to one another, and geometric parameters of the tooth block (7) are established on the tooth block (7), and geometric parameters of the jaw model (5, 6) are established on the jaw model (5, 6), and, in order to position the tooth block (7) on the jaw model (5, 6), the geometric parameters of the tooth block (7) are assigned to the geometric parameters of the jaw model (5, 6).