Dental Material Dispensing Device with Dual-Mode Cure Control
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Solution Overview
Problem
Current dental retraction and impressioning procedures lack an efficient and cost-effective method for precise gingival retraction and impressioning, particularly for dental restorations extending beneath the gingiva, as existing solutions are either cumbersome or require multiple materials and procedures.
Innovation Solution
A dental material dispensing device that operates in two modes within a single dispensing cycle, using a plunger and cure control means with an energy source to control the specific energy exposure of the dental composition, allowing the same material to be pre-polymerized at different degrees for both retraction and impressioning, facilitating a continuous strand dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional dental retraction cord and impression material are used separately, then the dental impression precision is improved, but the procedure complexity and time consumption increase
Solution Approach 1:
The patent combines two separate dental procedures (gingival retraction and impressioning) into a single dispensing operation. The dispensing device delivers a unified dental composition that simultaneously performs both retraction and impressioning functions, eliminating the need for separate retraction cord placement and separate impression material application.
Solution Approach 2:
The dental composition dispensed by the device is designed to serve multiple functions: it acts as both a retraction agent to displace gingival tissue and as an impression material to capture tooth structure. This multi-functional material replaces the need for multiple specialized materials and procedures.
2Manufacturing precision
If multiple separate procedures are used for retraction and impressioning, then the material precision is improved, but the time consumption increases
Solution Approach 1:
The patent implements a continuous dispensing process where the dental composition is delivered in a single uninterrupted strand that simultaneously performs retraction and impressioning. The plunger mechanism maintains continuous material flow through the dispensing needle, eliminating interruptions between separate procedures and reducing overall treatment time.
3Reliability
If separate retraction cord and impression material are used, then the functional effectiveness is improved, but the cost and material usage increase
Solution Approach 1:
The dental composition is formulated to provide both retraction and impressioning functionality in a single material, reducing the total amount of materials required compared to using separate retraction cord and impression material.
Solution Approach 2:
By merging the retraction and impressioning functions into one dispensable composition, the patent eliminates redundant material usage and reduces overall procedural cost while maintaining functional effectiveness.
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
Enables combined dental retraction and impressioning using the same material, saving time and effort by allowing the device to switch between modes during a single dispensing cycle, ensuring precise application and efficient material usage.
Implementation Method 1
The device has cure control means comprising an energy source... exposing the dental composition and/or the dental material to a specific energy... The dental composition may be configured so that the components from which it is prepared essentially do not chemically react with each other just from the combination of components, or alternatively the dental composition may be configured to polymerize from a chemical reaction of the components
Data Source
AI summary
A dental material dispensing device has a plunger means which for dispensing the dental material is movable for urging at least one component of a dental material toward a dispensing area. The device further has cure control means with an energy source and a flow path on which the dental composition and/or the dental material flows past the energy source during dispensation. The device is operable for exposing the dental composition and/or the dental material to a specific energy by control of the energy source and/or by control of the speed of the flow of the dental composition and/or the dental material on the flow path. The device is configured for dispensing a coherent strand of dental material in a dispensing cycle. The device is further configured for operating in a first dispensing mode and additionally in a second dispensing mode during the same dispensing cycle. The ratio between the specific energy in the second dispensing mode and the specific energy in the first dispensing mode is smaller than 1.