Anatomical Healing Cap Casting Jig for Gingival Preservation
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Solution Overview
Problem
Conventional healing caps in oral surgery fail to preserve the natural aesthetic appearance of gingival tissue after tooth extraction, leading to loss of desirable features like the emergence profile, interdental papilla, and buccal prominence, which are difficult to recapture when installing a prosthesis.
Innovation Solution
The development of customizable sculptable anatomical healing caps and casting jigs that allow practitioners to manufacture anatomically shaped healing caps with asymmetrical cross-sections and irregular surfaces, matching the specific tooth position, which can be customized to fit individual patients, thereby preserving the aesthetic features of the gingival tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional healing caps are used, then the implant site can be covered and protected during healing, but the natural aesthetic appearance of gingival tissue (emergence profile, interdental papilla, buccal prominence) is lost
Solution Approach 1:
The healing cap is designed with different regional shapes corresponding to different anatomical regions (emergence profile, interdental papilla, buccal prominence), where each region has specific dimensional characteristics that match the natural tooth anatomy. This allows the cap to preserve local aesthetic features while providing overall protection.
Solution Approach 2:
The healing cap is placed immediately after tooth extraction to preliminarily establish the desired gingival contour before healing occurs. By pre-forming the anatomical shape that will guide tissue regeneration, the natural aesthetic appearance is preserved during the healing process rather than being lost and requiring later correction.
2Ease of manufacture
If standardized healing caps are used, then manufacturing and inventory management are simplified, but customization to match specific tooth positions and patient anatomy is limited
Solution Approach 1:
The healing cap is divided into multiple anatomical segments (emergence portion, interdental papilla regions, buccal prominence areas), each with specific dimensional parameters. This segmentation allows standardized manufacturing of modular components that can be selected and combined to match different tooth positions and patient anatomies.
Solution Approach 2:
The healing cap design incorporates variable parameters such as diameter, height, and curvature that can be adjusted based on the specific tooth position and patient anatomy. By defining a range of parameter values for different anatomical regions, standardized caps can be adapted to customize the fit and aesthetic outcome for each patient.
3Manufacturing precision
If conventional healing caps with regular shapes are used, then manufacturing precision is easier to achieve, but the irregular surface and asymmetrical cross-section needed to match natural tooth anatomy cannot be replicated
Solution Approach 1:
The healing cap is designed as a copy or replica of the natural tooth anatomy, replicating the irregular surface and asymmetrical cross-section of the emergent tooth. By copying the actual anatomical form rather than using regular geometric shapes, the cap achieves precise anatomical conformity while maintaining manufacturing precision through standardized replication processes.
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 use of these anatomical healing caps effectively preserves the emergence profile and other aesthetic features of the gingival tissue, reducing the loss of natural tissue characteristics and improving the fit of prostheses, while also reducing costs by allowing practitioners to manufacture their own caps chair-side.
Implementation Method 1
A curable or otherwise settable material is introduced into the well of the casting jig (e.g., while in a flowable state), which material is allowed to set or cure so as to become rigid or hard.
Data Source
AI summary
Casting jigs, methods, and kits that may be used in manufacture of anatomical healing caps. A casting jig may include a body having one or more wells within the body, each well being open at a proximal end thereof and having a negative shape corresponding to an anatomical healing cuff body of a given tooth position. Each respective anatomical healing cuff body negative shape includes an asymmetrical cross-section and an irregular surface so that an anatomical healing cuff body having said shape is configured to provide substantially custom filling of at least an emergence portion of a void where a natural tooth once emerged or should have emerged from the void (e.g., in the case of a congenitally missing tooth). The casting jig may further include a socket at a distal end of each well that is configured to receive therein a dental implant or dental implant analog.