Dental Impression Templates with Centric Relation Marking for Fewer Visits
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Solution Overview
Problem
The conventional process for manufacturing dental prostheses for edentulous patients is laborious, requiring multiple clinic visits and relying heavily on professional expertise, leading to inefficiencies and potential quality issues.
Innovation Solution
An impression making system combining digital and manual techniques, utilizing templates with positioning means and a centric relation marking device to ensure precise alignment and registration of critical parameters, reducing the number of patient visits and improving manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional manual techniques are used for making dental impressions, then the process is simple and requires basic equipment, but the number of clinic visits increases and manufacturing time extends
Solution Approach 1:
The patent applies preliminary action by providing templates with pre-defined anatomical landmarks and positioning features that are prepared before the impression-making process. These templates include pre-marked centric relation positions and occlusal plane references, allowing the clinician to establish critical parameters in a single visit rather than requiring multiple adjustment visits.
Solution Approach 2:
The patent uses templates that are precise copies or representations of ideal dental anatomical structures. These templates replicate the position and orientation of teeth and occlusal planes, enabling accurate transfer of spatial relationships from the template to the final prosthesis without requiring multiple trial adjustments.
2Reliability
If multiple clinic visits are scheduled for diagnosis, impression taking, and prosthesis adjustment, then comprehensive patient assessment is achieved, but patient convenience deteriorates and treatment time increases
Solution Approach 1:
The templates are designed to be self-aligning and self-verifying, with built-in features that automatically indicate correct positioning relative to anatomical landmarks. This self-service capability allows the clinician to achieve accurate impressions without requiring multiple verification visits, thereby improving patient convenience while maintaining assessment quality.
3Ease of manufacture
If traditional flasking and pouring methods are used for prosthesis manufacturing, then the process is well-established and equipment is simple, but handling complexity increases and risk of microorganism colonization rises
Solution Approach 1:
The patent extracts the critical positioning and alignment information from the traditional multi-step flasking and pouring process by encoding it in the template structure itself. The templates contain pre-determined centric relation and occlusal plane data that are transferred directly to the prosthesis material, eliminating the need for extensive manual handling and multiple transfers that increase contamination risk.
4Manufacturing precision
If experienced professionals manually carve and assemble teeth on templates, then aesthetic and functional quality can be achieved, but the process requires high expertise and increases handling complexity
Solution Approach 1:
The templates are pre-prepared with accurately positioned anatomical landmarks, occlusal plane references, and centric relation markers before the clinical procedure. This preliminary preparation of the template structure eliminates the need for the clinician to manually carve and assemble teeth during the patient visit, reducing the requirement for advanced manual skills while maintaining high positioning accuracy.
Data Source
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AI summary
The present invention refers to an impression system for the manufacture of dental prostheses for totally or unimaxillary edentulous people, wherein the system basically comprises an upper template (1) with a cavity (1.1) capable of housing an impression material and adapting to the upper jaw of a patient and/or a lower template (2) with a cavity (2.1) capable of housing an impression material and adapting to the lower jaw of a patient, wherein said upper (1) or lower (2) template has positioning means in the patient's mouth.